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IDT54/74FCT521/A/B/C FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS 8-BIT IDENTITY COMPARATOR
FEATURES:
* * * * *
IDT54/74FCT521/A/B/C
* * * * * * * *
IDT54/74FCT521 equivalent to FASTTM speed IDT54/74FCT521A up to 35% faster than FAST IDT54/74FCT521B up to 35% faster than FAST IDT54/74FCT521C up to 60% faster than FAST Eqivalent to FAST output drive over full temperature and voltage supply extremes IOL = 48mA (commercial) and 32mA (military) CMOS power levels (1mW typ. static) TTL input and output level compatible CMOS output level compatible Substantially lower input current levels than FAST (5A max.) MIlitary product compliant to MIL-STD-883, Class B Meets or exceeds JEDEC Standard 18 specifications Available in the following packages: - Commercial: SOIC - Military: CERDIP, LCC
DESCRIPTION:
The FCT521 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 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 IA=B
2 3 4 5 6 7 8 9
19
11 12 13 14 15 16 17 18 1
OA=B
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
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JUNE 2002
DSC-4617/6
(c) 2002 Integrated Device Technology, Inc.
IDT54/74FCT521/A/B/C FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATION
IA=B A0 B0 A1 B1 A2 B2 A3 B3 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC OA=B B7 A7 B6 A6 B5 A5 B4
B3 A4 B4
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
B0
A1 B1 A2 B2 A3
A0
INDEX
IA=B
OA=B
VCC
4 5 6 7 8
B7 A7 B6 A6 B5
A4
CERDIP/ SOIC TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) TA TBIAS TSTG PT IOUT Rating Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Operating Temperature Temperature under BIAS Storage Temperature Power Dissipation DC Output Current 0 to +70 -55 to +125 -55 to +125 0.5 120 -55 to +125 -65 to +135 -65 to +150 0.5 120 C C C W mA -0.5 to VCC -0.5 to VCC V Commercial -0.5 to +7 Military -0.5 to +7 Unit V
PIN DESCRIPTION
Pin Names A0 - A7 B0 - B7 IA = B OA = B Word A Inputs Word B Inputs Expansion or Enable Input (Active LOW) Identity Output (Active LOW) Description
FUNCTION TABLE(1)
Inputs IA = B L L H H
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level *A0 = B0, A1 = B1, A2 = B2, etc.
GND
LCC TOP VIEW
A5
Output OA = B L H H H
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. Input and Vcc terminals only. 3. Output and I/O terminals only.
A, B A = B* AB A = B* AB
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 6 8 Max. 10 12 Unit pF pF
NOTE: 1. This parameter is measured at characterization but not tested.
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IDT54/74FCT521/A/B/C FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V; VHC = VCC - 0.2V Commercial: TA = 0C to +70C, VCC = 5.0V 5%, Military: TA = -55C to +125C, VCC = 5.0V 10%
Symbol VIH VIL IIH IIL IOZH IOZL VIK IOS VOH Off State (High Impedance) Output Current Clamp Diode Voltage Short Circuit Current Output HIGH Voltage VCC = Max. Parameter Input HIGH Level Input LOW Level Input HIGH Current VCC = Max. Input LOW Current Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VI = VCC VI = 2.7V VI = 0.5V VI = GND VO = VCC VO = 2.7V VO = 0.5V VO = GND GND(3) Min. 2 -- -- -- -- -- -- -- -- -- -- -60 VHC VHC 2.4 2.4 -- -- -- -- Typ.(2) -- -- -- -- -- -- -- -- -- -- -0.7 -120 VCC VCC 4.3 4.3 GND GND 0.3 0.3 Max. -- 0.8 5 5(4) -5(4) -5 10 10(4) -10(4) -10 -1.2 -- -- -- -- -- VLC VLC(4) 0.5 0.5 A A Unit V V
VCC = Min., IIN = -18mA VCC = Max., VO = VCC = 3V, VIN = VLC or VHC, IOH = -32A VCC = Min IOH = -300A VIN = VIH or VIL IOH = -12mA MIL IOH = -15mA COM'L VCC = 3V, VIN = VLC or VHC, IOL = 300A VCC = Min IOL = 300A VIN = VIH or VIL IOL = 32mA MIL IOL = 48mA COM'L
V mA V
VOL
Output LOW Voltage
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, +25C ambient and maximum loading. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not ttested.
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IDT54/74FCT521/A/B/C FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC - 0.2V
Symbol ICC ICC ICCD Parameter Quiescent Power Supply Current Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) VCC = Max. VIN VHC; VIN VLC VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open One Input Toggling 50% Duty Cycle VCC = Max. Outputs Open fI = 10MHz One Bit Toggling 50% Duty Cycle VIN VHC VIN VLC Min. -- -- -- Typ.(2) 0.2 0.5 0.15 Max. 1.5 2 0.25 Unit mA mA mA/ MHz
IC
Total Power Supply Current(5,6)
VIN VHC VIN VLC (FCT) VIN = 3.4V VIN = GND
-- --
1.7 2
4 5
mA
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, +25C 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 = Input Frequency Ni = Number of Inputs at fi All currents are in milliamps and all frequencies are in megahertz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL
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 = 500 74FCT521A Min.(2) Max. 1.5 7.2 1.5 6 74FCT521B Min.(2) Max. 1.5 5.5 1.5 4.6 74FCT521C Min.(2) Max. 1.5 4.5 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 = 500 54FCT521 Min.(2) Max. 1.5 15 1.5 9 54FCT521A Min.(2) Max. 1.5 9.5 1.5 7.8 54FCT521B Min.(2) Max. 1.5 7.3 1.5 6 Unit ns ns
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
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IDT54/74FCT521/A/B/C FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
V CC 500 VIN Pulse Generator RT D.U.T . VOUT 7.0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low Switch Closed Open
50pF CL
500
All Other Tests
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Octal link
Test Circuits for All Outputs
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC.
tSU
tH
tREM
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
Octal link
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
Octal link
1.5V
1.5V
tSU
tH
Pulse Width
Set-Up, Hold, and Release Times
ENABLE SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL 3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V
Octal link
DISABLE 3V 1.5V 0V 3.5V 0.3V tPHZ 0.3V 1.5V 0V VOH 0V
Octal link
CONTROL INPUT tPZL OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED tPZH SWITCH OPEN 3.5V 1.5V tPLZ
VOL
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; ZO 50; tF 2.5ns; tR 2.5ns.
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IDT54/74FCT521/A/B/C FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
XXXX FCT IDT XX Temp. Range Device Type XX Package X Process Blank B Commercial MIL-STD-883, Class B Commercial Options Small Outline IC Military Options CERDIP Leadless Chip Carrier
SO
D L
521 521A 521B 521C
Fast CMOS 8-Bit Identity Comparator
54 74
- 55C to +125C - 0C to +70C
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for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
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