IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR MILITARY AND INDUSTRIAL TEMPERATURE RANGES IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR FEATURES: • • • • • • • • • DESCRIPTION: Std., A, B, and C 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, SSOP, QSOP – Military: CERDIP, LCC The IDT54/74FCT521T is an 8-bit identity comparator built using an advanced dual metal CMOS technology. These devices compare two words of up to eight bits each and provide a low output when the two words match bit for bit. The expansion input IA = B also serves as an active low enable input. FUNCTIONAL BLOCK DIAGRAM A0 B0 2 A1 B1 4 A2 B2 6 A3 B3 8 A4 B4 11 A5 B5 13 A6 B6 15 A7 B7 17 3 5 7 9 19 IA=B OA=B 12 14 16 18 1 The IDT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND INDUSTRIAL TEMPERATURE RANGES JUNE 2002 1 © 2002 Integrated Device Technology, Inc. DSC-2572/9 IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR MILITARY AND INDUSTRIAL TEMPERATURE RANGES B0 3 18 B7 A1 4 17 A7 A1 B1 5 16 B6 B1 A2 6 15 A6 B2 7 14 B5 A3 8 13 A5 B3 9 12 B4 10 11 A4 2 1 5 17 A7 A2 6 16 B6 B2 7 15 A6 A3 8 14 B5 9 10 11 12 13 LCC TOP VIEW PIN DESCRIPTION ABSOLUTE MAXIMUM RATINGS(1) Description 19 B7 CERDIP/ SOIC/ SSOP/ QSOP TOP VIEW Symbol 20 18 4 B3 GND 3 OA=B OA=B A5 19 VCC 2 B4 A0 INDEX IA=B VCC A4 20 A0 1 GND IA=B B0 PIN CONFIGURATION Max Unit Pin Names VTERM(2) Terminal Voltage with Respect to GND –0.5 to +7 V A0 - A 7 Word A Inputs VTERM(3) Terminal Voltage with Respect to GND Word B Inputs Description –0.5 to VCC+0.5 V B0 - B 7 TSTG Storage Temperature –65 to +150 °C IA = B Expansion or Enable Input (Active LOW) IOUT DC Output Current –60 to +120 mA OA = B Identity Output (Active LOW) 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. FUNCTION TABLE(1) Inputs CAPACITANCE (TA = +25°C, F = 1.0MHz) Symbol Parameter(1) Conditions Typ. Max. Unit CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance VOUT = 0V 8 12 pF IA = B L A, B A = B* Output OA = B L L H A≠B A = B* H H H A≠B H NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level *A0 = B0, A1 = B1, A2 = B2, etc. NOTE: 1. This parameter is measured at characterization but not tested. 2 IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR 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) 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 II Input HIGH Current(4) VCC = Max., VI = VCC (Max.) — — ±1 µA VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V –60 2.4 –120 3.3 –225 — mA 2 3 — — 0.3 0.5 V — 200 — mV — 0.01 1 µA IOS VOH Parameter Short Circuit Current Output HIGH Voltage VOL Output LOW Voltage VH Input Hysteresis ICC Quiescent Power Supply Current VCC = Max., VO = VCC = Min VIN = VIH or VIL GND(3) IOH = –6mA MIL IOH = –8mA IND IOH = –12mA MIL IOH = –15mA IND IOL = 32mA MIL IOL = 48mA IND VCC = Min VIN = VIH or VIL — VCC = Max. VIN = GND or VCC V 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. 3 IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR MILITARY AND INDUSTRIAL TEMPERATURE RANGES POWER SUPPLY CHARACTERISTICS Test Conditions(1) 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 One Input Toggling 50% Duty Cycle Total Power Supply Current(6) VCC = Max. Outputs Open fi = 10MHz One Bit Toggling 50% Duty Cycle IC Min. Typ.(2) Max. Unit — 0.5 2 mA VIN = VCC VIN = GND — 0.15 0.25 mA/ MHz VIN = VCC VIN = GND VIN = 3.4V VIN = GND — 1.5 3.5 mA — 1.8 4.5 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 (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 Input 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. SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL Symbol tPLH tPHL tPLH tPHL Parameter Propagation Delay Ax or Bx to OA = B Propagation Delay IA = B to OA = B Condition(1) CL = 50pF RL = 500Ω FCT521AT Min.(2) Max. 1.5 7.2 1.5 FCT521CT Min.(2) Max. 1.5 4.5 6 1.5 4.1 Unit ns ns SWITCHING CHARACTERISTICS OVER OPERATING RANGE - MILITARY Symbol tPLH tPHL tPLH tPHL Parameter Propagation Delay Ax or Bx to OA = B Propagation Delay IA = B to OA = B Condition(1) CL = 50pF RL = 500Ω 54FCT521T Min.(2) Max. 1.5 15 1.5 9 NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 4 54FCT521AT Min.(2) Max. 1.5 9.5 1.5 7.8 54FCT521BT Min.(2) Max. 1.5 7.3 1.5 6 54FCT521CT Min.(2) Max. 1.5 5.1 1.5 4.5 Unit ns ns IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR 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 1.5V tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 3V 1.5V 0V tH 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. 5 IDT54/74FCT521T/AT/BT/CT FAST CMOS 8-BIT IDENTITY COMPARATOR MILITARY AND INDUSTRIAL TEMPERATURE RANGES ORDERING INFORMATION XXXX IDT XX FCT Device Type Temp. Range XX Package X Process CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 Blank B Industrial MIL-STD-883, Class B SO PY Q Industrial Options Small Outline IC Shrink Small Outline Package Quarter-size Small Outline Package D L Military Options CERDIP Leadless Chip Carrier 521T 521AT 521BT 521CT Fast CMOS 8-Bit Identity Comparator 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 6 for Tech Support: [email protected] (408) 654-6459