Original Creation Date: 07/01/96
Last Update Date: 03/31/97
Last Major Revision Date: 01/31/97
MN54AC520-X REV 2A0 MICROCIRCUIT DATA SHEET
8 - Bit Identity Comparator
General Description
The AC520 is an expandable 8-bit comparator. It compares two words of up to eight bits
each and provides a LOW output when the two words match bit for bit. The expansion input
IA=B also serves as an active LOW enable input.
NS Part Numbers
54AC520DMQB
54AC520FMQB
54AC520LMQB
Industry Part Number
54AC520
Prime Die
Z520
Processing
MIL-STD-883, Method 5004
Quality Conformance Inspection
MIL-STD-883 5005
Subgrp Description Temp ( C)
o
1 Static tests at +25
2 Static tests at +125
3 Static tests at -55
4 Dynamic tests at +25
5 Dynamic tests at +125
6 Dynamic tests at -55
7 Functional tests at +25
8A Functional tests at +125
8B Functional tests at -55
9 Switching tests at +25
10 Switching tests at +125
11 Switching tests at -55
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MICROCIRCUIT DATA SHEET
MN54AC520-X REV 2A0
Features
- Compares two 8-bit words in 6.5 ns typ
- Expandable to any work length
- 20-pin package
- Outputs source/sink 24 mA
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MICROCIRCUIT DATA SHEET
MN54AC520-X REV 2A0
(Absolute Maximum Ratings)
(Note 1)
Supply Voltage (Vcc) -0.5V to +7.0V
DC Input Diode Current (Iik) -20 mAVi = -0.5V +20 mAVi = Vcc +0.5V
DC Input Voltage (Vi) -0.5V to Vcc +0.5V
DC Output Diode Current (Iok) -20 mAVo = -0.5V +20 mAVo =Vcc +0.5V
DC Output Voltage (Vo) -0.5V to Vcc +0.5V
DC Output Source or Sink Current (Io) +50 mA
DC Vcc or Ground Current per Output Pin (Icc or Ignd) +50 mA
Storage Temperature (Tstg) -65 C to +150 C
Junction Temperature (Tj) 175 CCDIP
Note 1: Absolute maximum ratings are those values beyond which damage to the device may
occur. The databook specifications should be met, without exception, to ensure that
the system design is reliable over its power supply, temperature, and output/input
loading variables. National does not recommend operation of FACT TM circuits outside
databook specifications.
Recommended Operating Conditions
Supply Voltage (Vcc) 2.0V to 6.0V
Input Voltage (Vi) 0V to Vcc
Output Voltage (Vo) 0V to Vcc
Operating Temperature (Ta) -55 C to +125 C
Minimum Input Edge Rate (Delta V/Delta t)
AC Devices
Vin from 30% to 70% of Vcc 125 mV/nsVcc @ 3.0V, 4.5V, 5.5V
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MN54AC520-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: VCC 3.0V to 5.5V, Temp. Range: -55c to 125C. NOTE: --55C TEMPERATURE, SUBGROUP 3 IS GUARANTEED BUT NOT
TESTED.
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
IIH High Level Input
Current VCC=5.5V, An, Bn = 5.5V 1, 2 An
INPUTS 0.1 uA 1
1, 2 An
INPUTS 1.0 uA 2, 3
IIL Low Level Input
Current VCC=5.5V, An, Bn = 0.0V 1, 2 An
INPUTS -0.1 uA 1
1, 2 An
INPUTS -1.0 uA 2, 3
IIH2 High Level Input
Current VCC=5.5V, An, Bn = 0.0V 1, 2 Bn
INPUTS 20.0 uA 1, 2,
3
IIL2 High Level Input
Current VCC=5.5V, An, Bn = 0.0V 1, 2 Bn
INPUTS -0.6 mA 1
1, 2 Bn
INPUTS -1.5 mA 2, 3
VOL Low Level Output
Voltage VCC=3.0V, VIH=2.1V, VIL=0.9V,
IOL=50.0uA 1, 2 OUTPUTS .10 V 1, 2,
3
VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOL=50.0uA 1, 2 OUTPUTS .10 V 1, 2,
3
VCC=3.0V, VIH=2.1V, VIL=0.9V,
IOL=12.0mA 1, 2 OUTPUTS .36 V 1
1, 2 OUTPUTS .50 V 2, 3
VCC=4.5V, VIH=3.15V, VIL=1.35V,
IOL=24.0mA 1, 2 OUTPUTS .36 V 1
1, 2 OUTPUTS .50 V 2, 3
VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOL=24.0mA 1, 2 OUTPUTS .36 V 1
1, 2 OUTPUTS .50 V 2, 3
VCC=4.5V, VIH=3.15V, VIL=1.35V,
IOL=50.0uA 1, 2 OUTPUTS .10 V 1, 2,
3
VIOL Dynamic Output
Current LOW VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOL=50.0mA 1,
2, 5 OUTPUTS 1.65 V 1, 2,
3
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MN54AC520-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: VCC 3.0V to 5.5V, Temp. Range: -55c to 125C. NOTE: --55C TEMPERATURE, SUBGROUP 3 IS GUARANTEED BUT NOT
TESTED.
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
VOH High Level Output
Voltage VCC=3.0V, VIH=2.1V, VIL=0.9V,
IOH=-50.0uA 1, 2 OUTPUTS 2.90 V 1, 2,
3
VCC=4.5V, VIH=3.15V, VIL=1.35V,
IOH=-50.0uA 1, 2 OUTPUTS 4.40 V 1, 2,
3
VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOH=-50.0uA 1, 2 OUTPUTS 5.40 V 1, 2,
3
VCC=3.0V, VIL=0.9V, VIH=2.1V,
IOH=-12.0mA 1, 2 OUTPUTS 2.56 V 1
1, 2 OUTPUTS 2.40 V 2, 3
VCC=4.5V, VIL=1.35V, VIH=3.15V,
IOH=-24.0mA 1, 2 OUTPUTS 3.86 V 1
1, 2 OUTPUTS 3.70 V 2, 3
VCC=5.5V, VIL=1.65V, VIH=3.85V,
IOH=-24.0mA 1, 2 OUTPUTS 4.86 V 1
1, 2 OUTPUTS 4.70 V 2, 3
VIOH Dynamic Output
Current HIGH VCC=5.5V, VIH=3.85V, VINH=5.5V,
VIL=1.65V, IOH=-50.0mA 1,
2, 5 OUTPUTS 3.85 V 1, 2,
3
ICCH Supply Current
Outputs HIGH VCC=5.5V 1, 2 VCC 4.0 uA 1
1, 2 VCC 80 uA 2, 3
ICCL Supply Current
Outputs LOW VCC=5.5V 1, 2 VCC 4.0 uA 1
1, 2 VCC 80 UA 2, 3
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MN54AC520-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: CL=50pf, RL=500 OHMS, TR=3.0ns, TF=3.0ns, Temp Range: -55C to 125C. NOTE: -55C TEMPERATURE, SUBGROUP
11 IS GUARANTEED BUT NOT TESTED.
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
tpLH(1) Propagation Delay VCC=3.0V 3,
4, 7 An or
Bn to
OA=B
1.0 11.5 ns 9
3,
4, 7 An or
Bn to
OA=B
1.0 14.0 ns 10, 11
tpHL(1) Propagation Delay VCC=3.0V 3,
4, 7 An or
Bn to
OA=B
1.0 12.5 ns 9
3,
4, 7 An or
Bn to
OA=B
1.0 15.0 ns 10, 11
tpLH(2) Propagation Delay VCC=3.0V 3,
4, 7 IA=B to
OA=B 1.0 8.5 ns 9
3,
4, 7 IA=B to
OA=B 1.0 10.0 ns 10, 11
tpHL(2) Propagation Delay VCC=3.0V 3,
4, 7 IA=B to
OA=B 1.0 8.5 ns 9
3,
4, 7 IA=B to
OA=B 1.0 10.5 ns 10, 11
tpLH(3) Propagation Delay VCC=4.5V 3,
4, 7 An or
Bn to
OA=B
1.5 9.0 ns 9
3,
4, 7 An or
Bn to
OA=B
1.5 10.5 ns 10, 11
tpHL(3) Propagation Delay VCC=4.5V 3,
4, 7 An or
Bn to
OA=B
1.5 9.0 ns 9
3,
4, 7 An or
Bn to
OA=B
1.5 11.0 ns 10, 11
tpLH(4) Propagation Delay VCC=4.5V 3,
4, 7 IA=B to
OA=B 1.5 6.5 ns 9
3,
4, 7 IA=B to
OA=B 1.5 7.5 ns 10, 11
tpHL(4) Propagation Delay VCC=4.5V 3,
4, 7 IA=B to
OA=B 1.5 6.5 ns 9
3,
4, 7 IA=B to
OA=B 1.5 8.0 ns 10, 11
Note 1: SCREEN TESTED 100% ON EACH DEVICE AT +25C & +125C TEMPERATURE, SUBGROUPS 1, 2, 7, &
8.
Note 2: SAMPLE TESTED (METHOD 5005, TABLE 1) ON EACH MFG. LOT AT +25C & +125C TEMPERATURE,
SUBGROUPS A1, 2, 7, & 8.
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MN54AC520-X REV 2A0 MICROCIRCUIT DATA SHEET
(Continued)
Note 3: SCREEN TESTED 100% ON EACH DEVICE AT +25C TEMPERATURE ONLY SUBGROUP A9.
Note 4: SAMPLE TESTED (METHOD 5005, TABLE 1) ON EACH MFG. LOT AT +25C & +125C TEMPERATURE,
SUBGROUPS A9 & 10.
Note 5: TRANSMISSION LINE DRIVING TEST, GUARDBAND LIMITS SET FOR +25C, 2 MSEC DURATION MAX.
Note 6: NOT TESTED AT +125C & -55C TEMPERATURE (DESIGN CHARACTERIZATION DATA).
Note 7: +25C & +125C MIN LIMITS GUARANTEED FOR 5.5V BY GUARDBANDING 4.5V MIN. LIMITS.
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