IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES FAST CMOS QUAD 2-INPUT MULTIPLEXER DESCRIPTION: FEATURES: • • • • • • • • • IDT54/74FCT257T/AT/CT/DT The FCT257T is a high-speed quad 2-input multiplexer built using an advanced dual metal CMOS technology. Four bits of data from two sources can be selected using the common select input. The four buffered outputs present the selected data in the true (non-inverting) form. The FCT257T has a common Output Enable (OE) input. When OE is high, all outputs are switched to a high-impedance state allowing the outputs to interface directly with bus-oriented systems. Std., A, C, and D grades Low input and output leakage ≤1µA (max.) CMOS power levels True TTL input and output compatibility: – VOH = 3.3V (typ.) – VOL = 0.3V (typ.) High Drive outputs (-15mA IOH, 48mA IOL) Meets or exceeds JEDEC standard 18 specifications Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) Power off disable outputs permit "live insertion" Available in the following packages: – Industrial: SOIC, QSOP – Military: CERDIP, LCC FUNCTIONAL BLOCK DIAGRAM S Three other multiplexers I 1B I1D I 0B I0D ZB ZD I 1A ZA I 0A OE The IDT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND INDUSTRIAL TEMPERATURE RANGES JUNE 2001 1 © 2002 Integrated Device Technology, Inc. DSC-5500/2 IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES I1A 3 14 I0C ZA 4 13 I1C I0B 5 12 ZC I1B 6 11 I0D ZB 7 10 I1D GND 8 9 ZD I1A 4 ZA 3 2 1 I0C 5 17 I1C NC 6 16 NC I0B 7 15 ZC I1B 8 14 I0D 9 10 11 12 13 PIN DESCRIPTION Max Unit Pin Names VTERM(2) Terminal Voltage with Respect to GND –0.5 to +7 V I0A–I0D Source 0 Data Inputs VTERM(3) Terminal Voltage with Respect to GND Source 1 Data Inputs Description –0.5 to VCC+0.5 V I1A–I1D TSTG Storage Temperature –65 to +150 °C OE IOUT DC Output Current –60 to +120 mA S NOTES: 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. No terminal voltage may exceed Vcc by +0.5V unless otherwise noted. 2. Inputs and Vcc terminals only. 3. Output and I/O terminals only. Conditions Typ. Max. Unit CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance VOUT = 0V 8 12 pF Description Output Enable (Active LOW) Select Input ZA–ZD Outputs FUNCTION TABLE(1) Inputs CAPACITANCE (TA = +25°C, F = 1.0MHz) Parameter(1) 19 LCC TOP VIEW ABSOLUTE MAXIMUM RATINGS(1) Symbol 20 18 CERDIP/ SOIC/ QSOP TOP VIEW Symbol OE OE I1D 15 VCC 2 ZD I0A NC VCC NC 16 GND 1 ZB S S INDEX I0A PIN CONFIGURATION OE S I0 I1 Output Zx H X X X Z L H X L L L H X H H L L L X L L L H X H NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Z = High-Impedance NOTE: 1. This parameter is measured at characterization but not tested. 2 IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10% 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 IIH Input HIGH Current(4) VCC = Max. VI = 2.7V — — ±1 µA IIL Input LOW Current(4) VCC = Max. VI = 0.5V — — ±1 µA IOZH High Impedance Output Current VCC = Max VO = 2.7V — — ±1 µA IOZL (3-State output pins)(4) VO = 0.5V — — ±1 II VIK VH Input HIGH Current(4) Clamp Diode Voltage Input Hysteresis VCC = Max., VI = VCC (Max.) VCC = Min, IIN = -18mA — — — — –0.7 200 ±1 –1.2 — µA V mV ICC Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — 0.01 1 mA Min. 2.4 2 — Typ.(2) 3.3 3 0.3 Max. — — 0.5 Unit V –60 — –120 — –225 ±1 mA µA — OUTPUT DRIVE CHARACTERISTICS Symbol VOH Parameter Output HIGH Voltage VOL Output LOW Voltage IOS IOFF Short Circuit Current Input/Output Power Off Leakage(5) Test Conditions(1) IOH = –8mA IOH = –15mA IOL = 48mA VCC = Min VIN = VIH or VIL VCC = Min VIN = VIH or VIL VCC = Max., VO = GND(3) VCC = 0V, VIN or VO ≤ 4.5V NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25°C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. The test limit for this parameter is ±5µA at TA = –55°C. 5. This parameter is guaranteed but not tested. 3 V IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES POWER SUPPLY CHARACTERISTICS Test Conditions(1) Min. Typ.(2) Max. Unit — 0.5 2 mA VIN = VCC VIN = GND — 0.15 0.25 mA/ MHz VCC = Max. Outputs Open fo = 10MHz VIN = VCC VIN = GND — 1.5 3.5 mA 50% Duty Cycle OE = GND One Bit Toggling VIN = 3.4V VIN = GND — 1.8 4.5 VCC = Max. Outputs Open fo = 2.5MHz VIN = VCC VIN = GND — 1.5 3.5(5) 50% Duty Cycle OE = GND Four Bits Toggling VIN = 3.4V VIN = GND — 2.5 7.5(5) Symbol Parameter ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) ICCD Dynamic Power Supply Current(4) VCC = Max. Outputs Open OE = GND One Input Toggling 50% Duty Cycle Total Power Supply Current(6) IC NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25°C ambient. 3. Per TTL driven input; (VIN = 3.4V). All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of ∆ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (fONO) 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 Input Transition Pair (HLH or LHL) fO = Output Frequency NO = Number of Outputs at fO All currents are in milliamps and all frequencies are in megahertz. 4 IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay Ix to Zx Propagation Delay S to Zx Output Enable Time Condition(1) CL = 50pF RL = 500Ω Output Disable Time FCT257AT Min.(2) Max. 1.5 5 FCT275CT Min.(2) FCT275DT Max. 1.5 3.9 1.5 Max. 4.3 Min.(2) Unit ns 1.5 7 1.5 5.2 1.5 4.4 ns 1.5 7 1.5 6 1.5 4.4 ns 1.5 5.5 1.5 5 1.5 4.4 ns NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. SWITCHING CHARACTERISTICS OVER OPERATING RANGE - MILITARY Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay Ix to Zx Propagation Delay S to Zx Output Enable Time Condition(1) CL = 50pF RL = 500Ω Output Disable Time FCT257T Min.(2) Max. 1.5 7 FCT275AT Min.(2) Max. 1.5 5.8 FCT275CT Min.(2) Max. 1.5 5 Unit ns 1.5 12 1.5 8.1 1.5 6 ns 1.5 10 1.5 8 1.5 6.8 ns 1.5 8 1.5 5.8 1.5 5.3 ns NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 5 IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES TEST CIRCUITS AND WAVEFORMS V CC SWITCH POSITION 7.0V 500Ω V OUT VIN Pulse Generator D.U.T . 50pF RT 500Ω 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 Octal 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 tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 3V 1.5V 0V tH 1.5V 1.5V Octal link Pulse Width Octal 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 Octal 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 1.5V 0V VOH 0V Octal 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. 6 IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND INDUSTRIAL TEMPERATURE RANGES ORDERING INFORMATION IDT XX FCT XXXX Temp. Range Device Type XX Package X Process CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 Blank B Industrial MIL-STD-883, Class B SO Q Industrial Options Small Outline IC (300 mil) Quarter-size Small Outline Package D L Military Options CERDIP Leadless Chip Carrier 257T 257AT 257CT 257DT Quad 2-Input Multiplexer (3-State) 54 74 – 55°C to +125°C – 40°C to +85°C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 7 for Tech Support: [email protected] (408) 654-6459