SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345F - MAY 1996 - REVISED JANUARY 2000 D D D D EPIC (Enhanced-Performance Implanted CMOS) Process Operating Range 2-V to 5.5-V VCC Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds 2000 V Per MIL-STD-833, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Package Options Include Plastic Small-Outline (D), Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), Thin Shrink Small-Outline (PW), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPs SN54AHC157 . . . J OR W PACKAGE SN74AHC157 . . . D, DB, DGV, N, OR PW PACKAGE (TOP VIEW) A /B 1A 1B 1Y 2A 2B 2Y GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC G 4A 4B 4Y 3A 3B 3Y SN54AHC157 . . . FK PACKAGE (TOP VIEW) 1A A/B NC VCC G D description 1B 1Y NC 2A 2B These quadruple 2-line to 1-line data selectors/multiplexers are designed for 2-V to 5.5-V VCC operation. 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 4A 4B NC 4Y 3A 2Y GND NC 3Y 3B The 'AHC157 devices feature a common strobe (G) input. When the strobe is high, all outputs are low. When the strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The devices provide true data. 4 NC - No internal connection The SN54AHC157 is characterized for operation over the full military temperature range of -55C to 125C. The SN74AHC157 is characterized for operation from -40C to 85C. FUNCTION TABLE INPUTS G A/B A B OUTPUT Y H X X X L L L L X L L L H X H L H X L L L H X H H Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC is a trademark of Texas Instruments Incorporated. Copyright 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345F - MAY 1996 - REVISED JANUARY 2000 logic symbol G A/B 1A 1B 2A 2B 3A 3B 4A 4B 15 1 EN G1 2 1 3 MUX 4 1Y 1 5 7 6 11 9 10 14 12 13 2Y 3Y 4Y This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages. logic diagram (positive logic) 1A 2 4 3 1Y 1B 2A 5 7 2B 3A 6 11 9 3B 4A 10 G A/B 13 15 1 Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages. 2 3Y 14 12 4B 2Y POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 4Y SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345F - MAY 1996 - REVISED JANUARY 2000 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73C/W DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. recommended operating conditions (see Note 3) SN54AHC157 VCC Supply voltage VIH High-level input voltage VCC = 2 V VCC = 3 V VCC = 5.5 V VCC = 2 V SN74AHC157 MIN MAX MIN MAX 2 5.5 2 5.5 1.5 UNIT V 1.5 2.1 2.1 3.85 3.85 V 0.5 0.5 0.9 0.9 VIL Low-level input voltage VI VO Input voltage 0 5.5 0 5.5 V Output voltage 0 VCC -50 0 VCC -50 V IOH High-level output current VCC = 3 V VCC = 5.5 V VCC = 2 V VCC = 3.3 V 0.3 V VCC = 5 V 0.5 V VCC = 2 V IOL t/v Low-level output current Input transition rise or fall rate 1.65 V 1.65 -4 -4 -8 -8 50 50 VCC = 3.3 V 0.3 V VCC = 5 V 0.5 V 4 4 8 8 VCC = 3.3 V 0.3 V VCC = 5 V 0.5 V 100 100 20 20 mA mA mA mA ns/V TA Operating free-air temperature -55 125 -40 85 C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345F - MAY 1996 - REVISED JANUARY 2000 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) MIN TA = 25C TYP MAX 2V 1.9 2 1.9 1.9 3V 2.9 3 2.9 2.9 4.5 V 4.4 4.5 4.4 4.4 IOH = -4 mA 3V 2.58 2.48 2.48 IOH = -8 mA 4.5 V 3.94 3.8 3.8 PARAMETER TEST CONDITIONS VCC IOH = -50 mA VOH IOL = 50 mA VOL IOL = 4 mA II ICC A or B inputs IOL = 8 mA VI = VCC or GND VI = VCC or GND, VI = VCC or GND Ci IO = 0 SN54AHC157 MIN MAX SN74AHC157 MIN MAX UNIT V 2V 0.1 0.1 0.1 3V 0.1 0.1 0.1 4.5 V 0.1 0.1 0.1 3V 0.36 0.5 0.44 4.5 V 0.36 0.5 0.44 0 V to 5.5 V 0.1 1* 1 mA 4 40 40 mA 10 pF 5.5 V 5V 2 10 V * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE tPLH tPHL A or B Y CL = 15 pF tPLH tPHL A/B Y CL = 15 pF tPLH tPHL G Y CL = 15 pF tPLH tPHL A or B Y CL = 50 pF tPLH tPHL A/B Y CL = 50 pF tPLH tPHL G Y CL = 50 pF TA = 25C MIN TYP MAX POST OFFICE BOX 655303 SN74AHC157 MIN MAX MIN MAX 6.2** 9.7** 1** 11.5** 1 11.5 6.2** 9.7** 1** 11.5** 1 11.5 8.4** 13.2** 1** 15.5** 1 15.5 8.4** 13.2** 1** 15.5** 1 15.5 8.7** 13.6** 1** 16** 1 16 8.7** 13.6** 1** 16** 1 16 8.7 13.2 1 15 1 15 8.7 13.2 1 15 1 15 10.9 16.7 1 19 1 19 10.9 16.7 1 19 1 19 11.2 17.1 1 19.5 1 19.5 11.2 17.1 1 19.5 1 19.5 ** On products compliant to MIL-PRF-38535, this parameter is not production tested. 4 SN54AHC157 * DALLAS, TEXAS 75265 UNIT ns ns ns ns ns ns SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345F - MAY 1996 - REVISED JANUARY 2000 switching characteristics over recommended operating free-air temperature range, VCC = 5 V 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE tPLH tPHL A or B Y CL = 15 pF tPLH tPHL A/B Y CL = 15 pF tPLH tPHL G Y CL = 15 pF tPLH tPHL A or B Y CL = 50 pF tPLH tPLH A/B Y CL = 50 pF tPLH tPHL G Y CL = 50 pF MIN TA = 25C TYP MAX SN54AHC157 SN74AHC157 MIN MAX MIN MAX 4.1* 6.4* 1* 7.5* 1 7.5 4.1* 6.4* 1* 7.5* 1 7.5 5.3* 8.1* 1* 9.5* 1 9.5 5.3* 8.1* 1* 9.5* 1 9.5 5.6* 8.6* 1* 10* 1 10 5.6* 8.6* 1* 10* 1 10 5.6 8.4 1 9.5 1 9.5 5.6 8.4 1 9.5 1 9.5 6.8 10.1 1 11.5 1 11.5 6.8 10.1 1 11.5 1 11.5 7.1 10.6 1 12 1 12 7.1 10.6 1 12 1 12 UNIT ns ns ns ns ns ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. noise characteristics VCC = 5 V, CL = 50 pF, TA = 25C (see Note 4) SN74AHC157 PARAMETER VOL(P) Quiet output, maximum dynamic VOL VOL(V) Quiet output, minimum dynamic VOL VOH(V) Quiet output, minimum dynamic VOH VIH(D) High-level dynamic input voltage MIN TYP MAX 0.8 V -0.8 V 4.8 V 3.5 VIL(D) Low-level dynamic input voltage NOTE 4: Characteristics are for surface-mount packages only. UNIT V 1.5 V TYP UNIT operating characteristics, VCC = 5 V, TA = 25C PARAMETER Cpd TEST CONDITIONS Power dissipation capacitance No load, POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 f = 1 MHz 11 pF 5 SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345F - MAY 1996 - REVISED JANUARY 2000 PARAMETER MEASUREMENT INFORMATION RL = 1 k From Output Under Test Test Point From Output Under Test VCC Open S1 TEST GND CL (see Note A) CL (see Note A) S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain Open VCC GND VCC LOAD CIRCUIT FOR 3-STATE AND OPEN-DRAIN OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS VCC 50% VCC Timing Input tw tsu VCC Input 50% VCC 50% VCC 0V th VCC 50% VCC Data Input 50% VCC 0V 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATION VCC 50% VCC Input 50% VCC 0V tPLH In-Phase Output tPHL 50% VCC tPHL Out-of-Phase Output VOH 50% VCC VOL VCC Output Control Output Waveform 1 S1 at VCC (see Note B) 50% VCC 0V tPZL VOH 50% VCC VOL tPLZ VCC 50% VCC tPZH tPLH 50% VCC 50% VCC Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS VOL + 0.3 V VOL tPHZ 50% VCC VOH - 0.3 V VOH 0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR 1 MHz, ZO = 50 , tr 3 ns, tf 3 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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