74HC257; 74HCT257 Quad 2-input multiplexer; 3-state Rev. 03 -- 20 September 2005 Product data sheet 1. General description The 74HC257; 74HCT257 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). The 74HC257; 74HCT257 has four identical 2-input multiplexers with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (S). The data inputs from source 0 (1I0 to 4I0) are selected when input S is LOW and the data inputs from source 1 (1I1 to 4I1) are selected when S is HIGH. Data appears at the outputs (1Y to 4Y) in true (non-inverting) form from the selected inputs. The 74HC257; 74HCT257 is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The outputs are forced to a high-impedance OFF-state when OE is HIGH. The logic equations for the outputs are: 1Y = OE x ( 1I 1 x S + 1I 0 x S ) 2Y = OE x ( 2I 1 x S + 2I 0 x S ) 3Y = OE x ( 3I 1 x S + 3I 0 x S ) 4Y = OE x ( 4I 1 x S + 4I 0 x S ) The 74HC257; 74HCT257 is identical to the 74HC258 but has non-inverting (true) outputs. 2. Features Non-inverting data path 3-state outputs interface directly with system bus Complies with JEDEC standard no. 7A ESD protection: HBM EIA/JESD22-A114-C exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V Multiple package options Specified from -40 C to +85 C and from -40 C to +125 C 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 3. Quick reference data Table 1: Quick reference data GND = 0 V; Tamb = 25 C; tr = tf = 6 ns. Symbol Parameter Conditions Min Typ Max Unit propagation delay nI0, nI1 to nY CL = 15 pF; VCC = 5 V - 11 - ns propagation delay S to nY CL = 15 pF; VCC = 5 V - 14 - ns - 3.5 - pF - 45 - pF 74HC257 tPHL, tPLH Ci input capacitance CPD power dissipation capacitance (per multiplexer) VI = GND to VCC propagation delay nI0, nI1 to nY CL = 15 pF; VCC = 5 V - 13 - ns propagation delay S to nY CL = 15 pF; VCC = 5 V - 17 - ns - 3.5 - pF - 45 - pF [1] 74HCT257 tPHL, tPLH Ci input capacitance CPD power dissipation capacitance (per multiplexer) [1] [1] VI = GND to VCC - 1.5 V CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD x VCC2 x fi x N + (CL x VCC2 x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL x VCC2 x fo) = sum of outputs. 4. Ordering information Table 2: Ordering information Type number Package Temperature range Name Description Version 74HC257N -40 C to +125 C DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1 74HC257D -40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 74HC257DB -40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1 74HC257PW -40 C to +125 C TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 74HCT257N -40 C to +125 C DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 2 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 2: Ordering information ...continued Type number Package Temperature range Name Description Version -40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 74HCT257DB -40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1 74HCT257PW -40 C to +125 C TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 74HCT257D 5. Functional diagram 1 15 1 2 S 1I0 3 1I1 5 2I0 6 2I1 11 3I0 10 3I1 14 4I0 13 4I1 15 OE 2 1Y 2Y 4 3 G1 EN 1 MUX 4 1 5 7 7 6 3Y 9 11 9 10 4Y 12 14 12 13 001aad467 mga835 Fig 1. Logic symbol Fig 2. IEC logic symbol 2 3 1I0 1I1 1 S 15 OE 5 6 2I0 2I1 11 10 3I0 3I1 14 13 4I0 4I1 SELECTOR 3-STATE MULTIPLEXER OUTPUTS 1Y 2Y 3Y 4Y 4 7 9 12 mgr280 Fig 3. Functional diagram 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 3 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 1I0 1Y 1I1 2I0 2Y 2I1 3I0 3Y 3I1 4I0 4Y 4I1 OE S 001aad468 Fig 4. Logic diagram 6. Pinning information 6.1 Pinning S 1 16 VCC 1I0 2 15 OE 1I1 3 14 4I0 1Y 4 2I0 5 2I1 6 11 3I0 2Y 7 10 3I1 GND 8 13 4I1 257 12 4Y 9 3Y 001aad499 Fig 5. Pin configuration DIP16, SO16, SSOP16 and TSSOP16 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 4 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 6.2 Pin description Table 3: Pin description Symbol Pin Description S 1 common data select input 1I0 2 data input 1 from source 0 1I1 3 data input 1 from source 1 1Y 4 3-state multiplexer output 1 2I0 5 data input 2 from source 0 2I1 6 data input 2 from source 1 2Y 7 3-state multiplexer output 2 GND 8 ground (0 V) 3Y 9 3-state multiplexer output 3 3I1 10 data input 3 from source 1 3I0 11 data input 3 from source 0 4Y 12 3-state multiplexer output 4 4I1 13 data input 4 from source 1 4I0 14 data input 4 from source 0 OE 15 3-state output enable input (active LOW) VCC 16 supply voltage 7. Functional description 7.1 Function table Table 4: Function table [1] Control Input OE S nl0 nl1 nY H X X X Z L H X L L X H H L [1] L X L H X H H = HIGH voltage level; L = LOW voltage level; X = don't care; Z = high-impedance OFF-state. 74HC_HCT257_3 Product data sheet Output (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 5 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 8. Limiting values Table 5: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol Parameter Min Max Unit VCC supply voltage IIK input clamping current VI < -0.5 V or VI > VCC + 0.5 V -0.5 +7 V - 20 mA IOK output clamping current VO < -0.5 V or VO > VCC + 0.5 V - 20 mA IO output current ICC quiescent supply current VO = -0.5 V to VCC + 0.5 V - 35 mA - +70 mA IGND ground current - -70 mA Tstg storage temperature -65 +150 C Ptot total power dissipation [1] Conditions DIP16 package [1] - 750 mW SO16 package [2] - 500 mW SSOP16 package [3] - 500 mW TSSOP16 package [3] - 500 mW Unit For DIP16 packages: above 70 C, Ptot derates linearly with 12 mW/K. [2] For SO16 packages: above 70 C, Ptot derates linearly with 8 mW/K. [3] For SSOP16 and TSSOP16 packages: above 60 C, Ptot derates linearly with 5.5 mW/K. 9. Recommended operating conditions Table 6: Symbol Recommended operating conditions Parameter Conditions Min Typ Max Type 74HC257 VCC supply voltage 2.0 5.0 6.0 V VI input voltage 0 - VCC V VO output voltage 0 - VCC V tr, tf input rise and fall times VCC = 2.0 V - - 1000 ns VCC = 4.5 V - 6.0 500 ns VCC = 6.0 V - - 400 ns -40 - +125 C Tamb ambient temperature Type 74HCT257 VCC supply voltage 4.5 5.0 5.5 V VI input voltage 0 - VCC V VO output voltage 0 - VCC V tr, tf input rise and fall times - 6.0 500 ns Tamb ambient temperature -40 - +125 C VCC = 4.5 V 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 6 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 10. Static characteristics Table 7: Static characteristics type 74HC257 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Typ Max Unit Tamb = 25 C VIH VIL VOH VOL HIGH-state input voltage LOW-state input voltage HIGH-state output voltage LOW-state output voltage VCC = 2.0 V 1.5 1.2 - V VCC = 4.5 V 3.15 2.4 - V VCC = 6.0 V 4.2 3.2 - V VCC = 2.0 V - 0.8 0.5 V VCC = 4.5 V - 2.1 1.35 V VCC = 6.0 V - 2.8 1.8 V IO = -20 A; VCC = 2.0 V 1.9 2.0 - V IO = -20 A; VCC = 4.5 V 4.4 4.5 - V IO = -20 A; VCC = 6.0 V 5.9 6.0 - V IO = -6.0 mA; VCC = 4.5 V 3.98 4.32 - V IO = -7.8 mA; VCC = 6.0 V 5.48 5.81 - V IO = 20 A; VCC = 2.0 V - 0 0.1 V IO = 20 A; VCC = 4.5 V - 0 0.1 V IO = 20 A; VCC = 6.0 V - 0 0.1 V IO = 6.0 mA; VCC = 4.5 V - 0.15 0.26 V IO = 7.8 mA; VCC = 6.0 V - 0.16 0.26 V VI = VIH or VIL VI = VIH or VIL ILI input leakage current VI = VCC or GND; VCC = 6.0 V - - 0.1 A IOZ OFF-state output current VI = VIH or VIL; VO = VCC or GND; VCC = 6.0 V - - 0.5 A ICC quiescent supply current VI = VCC or GND; IO = 0 A; VCC = 6.0 V - - 8.0 A Ci input capacitance - 3.5 - pF VCC = 2.0 V 1.5 - - V VCC = 4.5 V 3.15 - - V VCC = 6.0 V 4.2 - - V VCC = 2.0 V - - 0.5 V VCC = 4.5 V - - 1.35 V VCC = 6.0 V - - 1.8 V IO = -20 A; VCC = 2.0 V 1.9 - - V IO = -20 A; VCC = 4.5 V 4.4 - - V Tamb = -40 C to +85 C VIH VIL VOH HIGH-state input voltage LOW-state input voltage HIGH-state output voltage VI = VIH or VIL IO = -20 A; VCC = 6.0 V 5.9 - - V IO = -6.0 mA; VCC = 4.5 V 3.84 - - V IO = -7.8 mA; VCC = 6.0 V 5.34 - - V 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 7 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 7: Static characteristics type 74HC257 ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions VOL VI = VIH or VIL LOW-state output voltage Min Typ Max Unit IO = 20 A; VCC = 2.0 V - - 0.1 V IO = 20 A; VCC = 4.5 V - - 0.1 V IO = 20 A; VCC = 6.0 V - - 0.1 V IO = 6.0 mA; VCC = 4.5 V - - 0.33 V IO = 7.8 mA; VCC = 6.0 V - - 0.33 V ILI input leakage current VI = VCC or GND; VCC = 6.0 V - - 1.0 A IOZ OFF-state output current VI = VIH or VIL; VO = VCC or GND; VCC = 6.0 V - - 5.0 A ICC quiescent supply current VI = VCC or GND; IO = 0 A; VCC = 6.0 V - - 80 A Tamb = -40 C to +125 C VIH VIL VOH VOL HIGH-state input voltage LOW-state input voltage HIGH-state output voltage LOW-state output voltage VCC = 2.0 V 1.5 - - V VCC = 4.5 V 3.15 - - V VCC = 6.0 V 4.2 - - V VCC = 2.0 V - - 0.5 V VCC = 4.5 V - - 1.35 V VCC = 6.0 V - - 1.8 V VI = VIH or VIL - IO = -20 A; VCC = 2.0 V 1.9 - - V IO = -20 A; VCC = 4.5 V 4.4 - - V IO = -20 A; VCC = 6.0 V 5.9 - - V IO = -6.0 mA; VCC = 4.5 V 3.7 - - V IO = -7.8 mA; VCC = 6.0 V 5.2 - - V VI = VIH or VIL - IO = 20 A; VCC = 2.0 V - - 0.1 V IO = 20 A; VCC = 4.5 V - - 0.1 V IO = 20 A; VCC = 6.0 V - - 0.1 V IO = 6.0 mA; VCC = 4.5 V - - 0.4 V IO = 7.8 mA; VCC = 6.0 V - - 0.4 V A ILI input leakage current VI = VCC or GND; VCC = 6.0 V - - 1.0 IOZ OFF-state output current VI = VIH or VIL; VO = VCC or GND; VCC = 6.0 V - - 10.0 A ICC quiescent supply current VI = VCC or GND; IO = 0 A; VCC = 6.0 V - - 160 A Conditions Min Typ Max Unit Table 8: Static characteristics type 74HCT257 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Tamb = 25 C VIH HIGH-state input voltage VCC = 4.5 V to 5.5 V 2.0 1.6 - V VIL LOW-state input voltage VCC = 4.5 V to 5.5 V - 1.2 0.8 V VOH HIGH-state output voltage VI = VIH or VIL; VCC = 4.5 V IO = -20 A 4.4 4.5 - V IO = -6 mA 3.98 4.32 - V 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 8 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 8: Static characteristics type 74HCT257 ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions VOL VI = VIH or VIL; VCC = 4.5 V LOW-state output voltage Min Typ Max Unit IO = 20 A - 0 0.1 V IO = 6.0 mA - 0.15 0.26 V ILI input leakage current VI = VCC or GND; VCC = 5.5 V - - 0.1 A IOZ OFF-state output current VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND per input pin; other inputs at VCC or GND; IO = 0 A - - 0.5 A ICC quiescent supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 8.0 A ICC additional quiescent supply current (per input pin) VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A nI0 input - 40 144 A nI1 input - 40 144 A OE input - 135 486 A S input - 70 252 A - 3.5 - pF Ci input capacitance Tamb = -40 C to +85 C VIH HIGH-state input voltage VCC = 4.5 V to 5.5 V 2.0 - - V VIL LOW-state input voltage VCC = 4.5 V to 5.5 V - - 0.8 V VOH HIGH-state output voltage VI = VIH or VIL; VCC = 4.5 V IO = -20 A 4.4 - - V IO = -6 mA 3.84 - - V VOL LOW-state output voltage VI = VIH or VIL; VCC = 4.5 V IO = 20 A - - 0.1 V IO = 6.0 mA - - 0.33 V ILI input leakage current VI = VCC or GND; VCC = 5.5 V - - 1.0 A IOZ OFF-state output current VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND per input pin; other inputs at VCC or GND; IO = 0 A - - 5.0 A ICC quiescent supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 80 A ICC additional quiescent supply current (per input pin) VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A nI0 input - - 180 A nI1 input - - 180 A OE input - - 608 A S input - - 315 A Tamb = -40 C to +125 C VIH HIGH-state input voltage VCC = 4.5 V to 5.5 V 2.0 - - V VIL LOW-state input voltage VCC = 4.5 V to 5.5 V - - 0.8 V VOH HIGH-state output voltage VI = VIH or VIL; VCC = 4.5 V IO = -20 A 4.4 - - V IO = -6 mA 3.7 - - V 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 9 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 8: Static characteristics type 74HCT257 ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions VOL VI = VIH or VIL; VCC = 4.5 V LOW-state output voltage Min Typ Max Unit IO = 20 A - - 0.1 V IO = 6.0 mA - - 0.4 V ILI input leakage current VI = VCC or GND; VCC = 5.5 V - - 1.0 A IOZ OFF-state output current VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND per input pin; other inputs at VCC or GND; IO = 0 A - - 10 A ICC quiescent supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 160 A ICC additional quiescent supply current (per input pin) VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A nI0 input - - 196 A nI1 input - - 196 A OE input - - 662 A S input - - 343 A 11. Dynamic characteristics Table 9: Dynamic characteristics type 74HC257 Voltages are referenced to GND (ground = 0 V); CL = 50 pF, unless otherwise specified. For test circuit see Figure 8. Symbol Parameter Conditions Min Typ Max Unit Tamb = 25 C tPHL, tPLH propagation delay nl0 to nY or nl1 to nY propagation delay S to nY tPZH, tPZL tPHZ, tPLZ 3-state output enable time OE to nY 3-state output disable time OE to nY see Figure 6 VCC = 2.0 V - 36 110 ns VCC = 4.5 V - 13 22 ns VCC = 5.0 V; CL = 15 pF - 11 - ns VCC = 6.0 V - 10 19 ns VCC = 2.0 V - 47 150 ns VCC = 4.5 V - 17 30 ns VCC = 5.0 V; CL = 15 pF - 14 - ns VCC = 6.0 V - 14 26 ns VCC = 2.0 V - 33 150 ns VCC = 4.5 V - 12 30 ns VCC = 6.0 V - 10 26 ns VCC = 2.0 V - 41 150 ns VCC = 4.5 V - 15 30 ns VCC = 6.0 V - 12 26 ns see Figure 6 see Figure 7 see Figure 7 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 10 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 9: Dynamic characteristics type 74HC257 ...continued Voltages are referenced to GND (ground = 0 V); CL = 50 pF, unless otherwise specified. For test circuit see Figure 8. Symbol Parameter Conditions Min Typ Max Unit tTHL, tTLH output transition time see Figure 6 VCC = 2.0 V - 14 60 ns VCC = 4.5 V - 5 12 ns - 4 10 ns - 45 - pF VCC = 6.0 V CPD power dissipation capacitance (per multiplexer) VI = GND to VCC [1] Tamb = -40 C to +85 C tPHL, tPLH propagation delay nl0 to nY or nl1 to nY propagation delay S to nY tPZH, tPZL tPHZ, tPLZ tTHL, tTLH 3-state output enable time OE to nY 3-state output disable time OE to nY output transition time see Figure 6 VCC = 2.0 V - - 140 ns VCC = 4.5 V - - 28 ns VCC = 6.0 V - - 24 ns see Figure 6 VCC = 2.0 V - - 190 ns VCC = 4.5 V - - 38 ns VCC = 6.0 V - - 33 ns see Figure 7 VCC = 2.0 V - - 190 ns VCC = 4.5 V - - 38 ns VCC = 6.0 V - - 33 ns see Figure 7 VCC = 2.0 V - - 190 ns VCC = 4.5 V - - 38 ns VCC = 6.0 V - - 33 ns see Figure 6 VCC = 2.0 V - - 75 ns VCC = 4.5 V - - 15 ns VCC = 6.0 V - - 13 ns VCC = 2.0 V - - 165 ns VCC = 4.5 V - - 33 ns VCC = 6.0 V - - 28 ns VCC = 2.0 V - - 225 ns VCC = 4.5 V - - 45 ns VCC = 6.0 V - - 38 ns Tamb = -40 C to +125 C tPHL, tPLH propagation delay nl0 to nY or nl1 to nY propagation delay S to nY see Figure 6 see Figure 6 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 11 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 9: Dynamic characteristics type 74HC257 ...continued Voltages are referenced to GND (ground = 0 V); CL = 50 pF, unless otherwise specified. For test circuit see Figure 8. Symbol Parameter Conditions tPZH, tPZL 3-state output enable time OE to nY see Figure 7 tPHZ, tPLZ tTHL, tTLH [1] 3-state output disable time OE to nY output transition time Min Typ Max Unit VCC = 2.0 V - - 225 ns VCC = 4.5 V - - 45 ns VCC = 6.0 V - - 38 ns see Figure 7 VCC = 2.0 V - - 225 ns VCC = 4.5 V - - 45 ns VCC = 6.0 V - - 38 ns see Figure 6 VCC = 2.0 V - - 90 ns VCC = 4.5 V - - 18 ns VCC = 6.0 V - - 15 ns CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD x VCC2 x fi x N + (CL x VCC2 x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL x VCC2 x fo) = sum of outputs. Table 10: Dynamic characteristics type 74HCT257 Voltages are referenced to GND (ground = 0 V); CL = 50 pF, unless otherwise specified. For test circuit see Figure 8. Symbol Parameter Conditions Min Typ Max Unit VCC = 4.5 V - 16 30 ns VCC = 5.0 V; CL = 15 pF - 13 - ns VCC = 4.5 V - 20 35 ns VCC = 5.0 V; CL = 15 pF - 17 - ns Tamb = 25 C tPHL, tPLH propagation delay nl0 to nY or nl1 to nY propagation delay S to nY see Figure 6 see Figure 6 tPZH, tPZL 3-state output enable time OE to nY VCC = 4.5 V; see Figure 7 - 15 30 ns tPHZ, tPLZ 3-state output disable time OE to nY VCC = 4.5 V; see Figure 7 - 16 30 ns tTHL, tTLH output transition time VCC = 4.5 V; see Figure 6 - 5 12 ns VCC = 4.5 V; see Figure 6 - - 38 ns VCC = 4.5 V; see Figure 6 - - 44 ns Tamb = -40 C to +85 C tPHL, tPLH propagation delay nl0 to nY or nl1 to nY propagation delay S to nY 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 12 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state Table 10: Dynamic characteristics type 74HCT257 ...continued Voltages are referenced to GND (ground = 0 V); CL = 50 pF, unless otherwise specified. For test circuit see Figure 8. Symbol Parameter Conditions Min Typ Max Unit tPZH, tPZL 3-state output enable time OE to nY VCC = 4.5 V; see Figure 7 - - 38 ns tPHZ, tPLZ 3-state output disable time OE to nY VCC = 4.5 V; see Figure 7 - - 38 ns tTHL, tTLH output transition time VCC = 4.5 V; see Figure 6 - - 15 ns VCC = 4.5 V; see Figure 6 - - 45 ns propagation delay S to nY VCC = 4.5 V; see Figure 6 - - 53 ns tPZH, tPZL 3-state output enable time OE to nY VCC = 4.5 V; see Figure 7 - - 45 ns tPHZ, tPLZ 3-state output disable time OE to nY VCC = 4.5 V; see Figure 7 - - 45 ns tTHL, tTLH output transition time VCC = 4.5 V; see Figure 6 - - 18 ns - 45 - pF Tamb = -40 C to +125 C tPHL, tPLH propagation delay nl0 to nY or nl1 to nY CPD [1] power dissipation capacitance (per multiplexer) [1] VI = GND to VCC CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD x VCC2 x fi x N + (CL x VCC2 x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL x VCC2 x fo) = sum of outputs. 12. Waveforms VI input S, nI0, nI1 VM VM GND t PHL t PLH VOH output nY 90 % VM VM 10 % VOL t THL t TLH 001aad477 Measurement points are given in Table 11. VOL and VOH are typical voltage output drop that occur with the output load. Fig 6. Propagation delays input (S, nI0, nI1) to output (nY) and output (nY) transition times 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 13 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state tr VI tf 90 % OE input VM GND 10 % tPLZ output tPZL VCC LOW-to-OFF OFF-to-LOW VM 10 % VOL tPHZ output VOH tPZH 90 % HIGH-to-OFF OFF-to-HIGH VM GND outputs enabled outputs enabled outputs disabled 001aac479 Measurement points are given in Table 11. VOL and VOH are typical voltage output drop that occur with the output load. Fig 7. 3-state output enable and disable times Table 11: Type Measurement points Input Output VM VM 74HC257 0.5VCC 0.5VCC 74HCT257 1.3 V 1.3 V 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 14 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state VI tW 90 % negative pulse VM VM 10 % 0V VI tTHL(tf) tTLH(tr) tTLH(tr) tTHL(tf) 90 % positive pulse 0V 90 % VM VM 10 % 10 % tW 001aac221 Measurement points are given in Table 11. a. Input pulse definition VCC VCC PULSE GENERATOR VI VO RL = 1 k open D.U.T RT CL 50 pF mgk563 Test data is given in Table 12. Definitions test circuit: RT = Termination resistance should be equal to output impedance Zo of the pulse generator. CL = Load capacitance including jig and probe capacitance. RL = Load resistor. b. Test circuit Fig 8. Load circuitry for switching times Table 12: Type Test data Input Switch position VI tr, tf tPHL, tPLH tPZH, tPHZ tPZL, tPLZ 74HC257 VCC 6 ns open GND VCC 74HCT257 3V 6 ns open GND VCC 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 15 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 13. Package outline DIP16: plastic dual in-line package; 16 leads (300 mil); long body SOT38-1 ME seating plane D A2 A A1 L c e Z b1 w M (e 1) b MH 9 16 pin 1 index E 1 8 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 min. A2 max. b b1 c D (1) E (1) e e1 L ME MH w Z (1) max. mm 4.7 0.51 3.7 1.40 1.14 0.53 0.38 0.32 0.23 21.8 21.4 6.48 6.20 2.54 7.62 3.9 3.4 8.25 7.80 9.5 8.3 0.254 2.2 inches 0.19 0.02 0.15 0.055 0.045 0.021 0.015 0.013 0.009 0.86 0.84 0.26 0.24 0.1 0.3 0.15 0.13 0.32 0.31 0.37 0.33 0.01 0.087 Note 1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC JEITA SOT38-1 050G09 MO-001 SC-503-16 EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-13 Fig 9. Package outline SOT38-1 (DIP16) 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 16 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 D E A X c y HE v M A Z 16 9 Q A2 A (A 3) A1 pin 1 index Lp 1 L 8 e 0 detail X w M bp 2.5 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 1.05 1.0 0.4 0.7 0.6 0.25 0.25 0.1 0.7 0.3 0.01 0.019 0.0100 0.39 0.014 0.0075 0.38 0.039 0.016 0.028 0.020 inches 0.010 0.057 0.069 0.004 0.049 0.16 0.15 0.05 0.244 0.041 0.228 0.01 0.01 0.028 0.004 0.012 o 8 o 0 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT109-1 076E07 MS-012 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig 10. Package outline SOT109-1 (SO16) 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 17 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm D SOT338-1 E A X c y HE v M A Z 9 16 Q A2 A (A 3) A1 pin 1 index Lp L 8 1 detail X w M bp e 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) mm 2 0.21 0.05 1.80 1.65 0.25 0.38 0.25 0.20 0.09 6.4 6.0 5.4 5.2 0.65 7.9 7.6 1.25 1.03 0.63 0.9 0.7 0.2 0.13 0.1 1.00 0.55 8 o 0 o Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT338-1 REFERENCES IEC JEDEC JEITA MO-150 EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig 11. Package outline SOT338-1 (SSOP16) 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 18 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 E D A X c y HE v M A Z 9 16 Q (A 3) A2 A A1 pin 1 index Lp L 1 8 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 5.1 4.9 4.5 4.3 0.65 6.6 6.2 1 0.75 0.50 0.4 0.3 0.2 0.13 0.1 0.40 0.06 8 o 0 o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT403-1 REFERENCES IEC JEDEC JEITA MO-153 EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-18 Fig 12. Package outline SOT403-1 (TSSOP16) 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 19 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 14. Revision history Table 13: Revision history Document ID Release date Data sheet status Change notice Doc. number Supersedes 74HC_HCT257_3 20050920 Product data sheet - 74HC_HCT257_CNV_2 Modifications: 74HC_HCT257_CNV_2 * The format of this data sheet has been redesigned to comply with the new presentation and information standard of Philips Semiconductors. * Added family specifications. 19980930 Product specification - 74HC_HCT257_3 Product data sheet - - - (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 20 of 22 74HC257; 74HCT257 Philips Semiconductors Quad 2-input multiplexer; 3-state 15. Data sheet status Level Data sheet status [1] Product status [2] [3] Definition I Objective data Development This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. II Preliminary data Qualification This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. III Product data Production This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). [1] Please consult the most recently issued data sheet before initiating or completing a design. [2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. [3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status. 16. Definitions customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Right to make changes -- Philips Semiconductors reserves the right to make changes in the products - including circuits, standard cells, and/or software - described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. 18. Trademarks 17. Disclaimers Notice -- All referenced brands, product names, service names and trademarks are the property of their respective owners. Life support -- These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors 19. Contact information For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com 74HC_HCT257_3 Product data sheet (c) Koninklijke Philips Electronics N.V. 2005. All rights reserved. Rev. 03 -- 20 September 2005 21 of 22 Philips Semiconductors 74HC257; 74HCT257 Quad 2-input multiplexer; 3-state 20. Contents 1 2 3 4 5 6 6.1 6.2 7 7.1 8 9 10 11 12 13 14 15 16 17 18 19 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 Functional description . . . . . . . . . . . . . . . . . . . 5 Function table . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 6 Recommended operating conditions. . . . . . . . 6 Static characteristics. . . . . . . . . . . . . . . . . . . . . 7 Dynamic characteristics . . . . . . . . . . . . . . . . . 10 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 20 Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 21 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Contact information . . . . . . . . . . . . . . . . . . . . 21 (c) Koninklijke Philips Electronics N.V. 2005 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 20 September 2005 Document number: 74HC_HCT257_3 Published in The Netherlands