IDTQS74FCT253AT HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER DESCRIPTION: FEATURES: * * * * * * * IDTQS74FCT253AT The IDTQS74FCT253AT is a high-speed CMOS TTL-compatible dual 4-input multiplexer with 3-state outputs. All inputs have clamp diodes for undershoot noise suppression. All outputs have ground bounce suppression. Outputs will not load an active bus when Vcc is removed from the device. CMOS power levels: <7.5mW static Undershoot clamp diodes on all inputs True TTL input and output compatibility Ground bounce controlled outputs Reduced output swing of 0 to 3.5V IOL = 48mA Available in SOIC, QSOP, and S1 packages FUNCTIONAL BLOCK DIAGRAM EB EA S1 S0 I0A I1A I2A YA The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE I3A I0B I1B I2B I3B YB MARCH 2001 1 (c) 2001 Integrated Device Technology, Inc. DSC-5873/1 IDTQS74FCT253AT HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol Description Max Unit VTERM Terminal Voltage with Respect to GND -0.5 to +7 V TSTG Storage Temperature -65 to +150 C 16 VCC IOUT DC Output Current Max Current Sink/Pin +120 mA 2 IIK Input Diode Current, VIN < 0 -20 mA 15 EB IOK DC Output Current, VOUT < 0 -50 mA I3A 3 14 S0 I2A 4 13 I3B I1A 5 12 I2B I0A 6 11 I1B YA 7 10 I0B GND 8 9 YB EA S1 1 NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. CAPACITANCE (TA = +25C, F = 1.0MHz) Parameter(1) Symbol Conditions Typ. Max. CIN Input Capacitance VIN = 0V 4 -- pF COUT Output Capacitance VOUT = 0V 8 -- pF NOTE: 1. This parameter is measured at characterization but not tested. SOIC/ QSOP/ S1 TOP VIEW PIN DESCRIPTION Pin Names I/O Description Ix I Data In Sx I Select EA, EB I Enable YA, YB 0 Data Out FUNCTION TABLE(1) Enable Select Outputs EB S0 S1 H X X X H X L L L L L L L L EA YA YB Function X Z Z Disable A X X Z Disable B L L I0 A I0 B S 1- 0 = 0 L H I1 A I1 B S 1- 0 = 1 H L I2 A I2 B S 1- 0 = 2 H H I3 A I3 B S 1- 0 = 3 NOTE: 1. H = HIGH Voltage Level X = Don't Care L = LOW Voltage Level Z = High-Impedance 2 Unit IDTQS74FCT253AT HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 5% Symbol Test Conditions(1) Parameter Min. Typ.(2) Max. Unit VIH Input HIGH Level Guaranteed Logic HIGH Level 2 -- -- V VIL Input LOW Level Guaranteed Logic LOW Level -- -- 0.8 V VT Input Hysteresis VTLH - VTHL for all inputs IIH Input HIGH Current VCC = Max. IIL Input LOW Current IOZ Off-State Output Current (Hi-Z) VCC = Max. IOS Short Circuit Current VCC = Max., VOUT = -- 0.2 -- V 0 VIN VCC -- -- 5 A 0 VIN VCC -- -- 5 A -60 -- -- mA GND(2) VIC Input Clamp Voltage VCC = Min., IIN = -18mA, TA = 25C -- -0.7 -1.2 V VOH Output HIGH Voltage VCC = Min. IOH = -15mA 2.4 -- -- V VOL Output LOW Voltage VCC = Min. IOL = 12mA -- -- 0.5 V Min. Max. Unit -- 1.5 mA NOTES: 1. Typical values are at VCC = 5.0V, +25C ambient. 2. This parameter is guaranteed but not tested POWER SUPPLY CHARACTERISTICS Symbol Parameter ICC Quiescent Power Supply Current Test Conditions(1) VCC = Max. freq = 0 0V VIN 0.2V or VCC - 0.2V VIN VCC ICC Supply Current per Input TTL Inputs HIGH VCC = Max. VIN = 3.4V(2) freq = 0 -- 2 mA ICCD Supply Current per Input per MHz VCC = Max. Outputs Open and Enabled One Bit Toggling 50% Duty Cycle -- 0.25 mA/ MHz Other inputs at GND or VCC(3,4) NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under DC Electrical Characteristics. 2. Per TTL driven input (VIN = 3.4V). 3. For flip-flops, ICCD is measured by switching one of the data input pins so that the output changes every clock cycle. This is a measurement of device power consumption only and does not include power to drive load capacitance or tester capacitance. 4. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCP/2 + fiNi) ICC = Quiescent Current ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current caused by an Output Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) fi = Output Frequency Ni = Number of Outputs at fi All currents are in milliamps and all frequencies are in megahertz. 3 IDTQS74FCT253AT HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1) Symbol tIY Parameter Min. Max. Unit Propagation Delay 1.5 5.2 ns 1.5 6.6 ns 1.5 6 ns 1.5 6 ns Ix to Y tSY Propagation Delay Sx to Y tPZH Output Enable Time tPZL E to Y tPHZ Output Disable Time tPLZ E to Y NOTES: 1. CLOAD = 50pF, RLOAD = 500 unless otherwise noted. 2. Minimums guaranteed but not tested. 3. This parameter is guaranteed by design but not tested. 4 IDTQS74FCT253AT HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS VCC SWITCH POSITION 7.0V 500 Pulse Generator VOUT VIN D.U.T. 50pF RT 500 Test Switch Open Drain Disable Low Enable Low Closed All Other Tests Open DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. CL FCTL link Test Circuits for All Outputs DATA INPUT tH tSU TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. 3V 1.5V 0V 3V 1.5V 0V tREM tSU LOW-HIGH-LOW PULSE 1.5V tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 3V 1.5V 0V tH 1.5V FCTL link Pulse Width FCTL link Set-Up, Hold, and Release Times ENABLE SAME PHASE INPUT TRANSITION tPLH tPHL OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL 3V 1.5V 0V DISABLE 3V 1.5V CONTROL INPUT OUTPUT NORMALLY LOW 3V 1.5V 0V OUTPUT NORMALLY HIGH FCTL link SWITCH CLOSED tPZH SWITCH OPEN 0V tPLZ tPZL VOH 1.5V VOL 3.5V 3.5V 1.5V 0.3V VOL tPHZ 0.3V VOH 1.5V 0V 0V FCTL link Propagation Delay Enable and Disable Times NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns. 5 IDTQS74FCT253AT HIGH-SPEED CMOS DUAL 4-INPUT MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION FCT XX IDTQS XX XXXX Device Type Package Temp. Range CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 SO Q S1 Small Outline IC (gull wing) Quarter Size Small Outline Package Small Outline IC (gull wing) 253AT High-Speed CMOS Dual 4-Input Multiplexer 74 -40C to +85C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 6 for Tech Support: logichelp@idt.com (408) 654-6459