Original Creation Date: 06/28/96
Last Update Date: 03/31/97
Last Major Revision Date: 06/28/96
MN54AC191-X REV 2A0 MICROCIRCUIT DATA SHEET
Up/Down Counter with Preset and Ripple Clock
General Description
The AC191 is a reversible modulo 16 binary counter featuring synchronous counting and
asynchronous presetting. The preset feature allows the AC191 to be used in programmable
dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output
make possible a variety of methods of implementing multistage counters. In the counting
modes, state changes are initiated by the rising edge of the clock.
NS Part Numbers
54AC191DMQB
54AC191FMQB
54AC191LMQB
Industry Part Number
54AC191
Prime Die
Z191
Processing
MIL-STD-883, Method 5004
Quality Conformance Inspection
MIL-STD-883, Method 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
1
MICROCIRCUIT DATA SHEET
MN54AC191-X REV 2A0
Features
- Icc reduced by 50%
- High speed-133 MHz typical count frequency
- Synchronous counting
- Asynchronous parallel load
- Cascadable
- Outputs source/sink 24 mA
- Standard Military Drawing (SMD)
- AC191:5962-89749
2
MICROCIRCUIT DATA SHEET
MN54AC191-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 C
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, output/input
loading variables. National does not recommend operation of FACT TM circuits outside
databook speicifications.
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
3
MN54AC191-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: -55 C to 125 C. 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, VM=5.5V 1, 2 INPUT 0.1 uA 1
1, 2 INPUT 1.0 uA 2, 3
IIL Low level input
current VCC=5.5V, VM=0.0V 1, 2 INPUT -0.1 uA 1
1, 2 INPUT -1.0 uA 2, 3
VOL Low level output
voltage VCC=3.0V, VIH=2.1V, VIL=0.9V,
IOL=12.0mA 1, 2 OUTPUT .36 V 1
1, 2 OUTPUT .50 V 2, 3
VCC=4.5V, VIH=3.15V, VIL=1.35V,
IOL=24.0mA 1, 2 OUTPUT .36 V 1
1, 2 OUTPUT .50 V 2, 3
VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOL=24.0mA 1, 2 OUTPUT .36 V 1
1, 2 OUTPUT .50 V 2, 3
VCC=3.0V, VINL=0.0V, VIH=2.1V,
VIL=0.9V, IOL=50.0uA 1, 2 OUTPUT .10 V 1, 2,
3
VCC=4.5V, VINL=0.0V, VIH=3.15V,
VIL=1.35V, IOL=50.0uA 1, 2 OUTPUT .10 V 1, 2,
3
VCC=5.5V, VINL=0.0V, VIH=3.85V,
VIL=1.65V, IOL=50.0uA 1, 2 OUTPUT .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 OUTPUT 1.65 V 1, 2,
3
VOH High level output
Voltage VCC=3.0V, VIH=2.1V, VIL=0.9V,
IOH=-12.0mA 1, 2 OUTPUT 2.56 V 1
1, 2 OUTPUT 2.40 V 2, 3
VCC=4.5V, VIH=3.15V, VIL=1.35V,
IOH=-24.0mA 1, 2 OUTPUT 3.86 V 1
1, 2 OUTPUT 3.70 V 2, 3
VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOH=-24.0mA 1, 2 OUTPUT 4.86 V 1
1, 2 OUTPUT 4.70 V 2, 3
VCC=3.0V, VINH=3.0V, VIH=2.1V,
VIL=0.9V, IOL=-50.0uA 1, 2 OUTPUT 2.90 V 1, 2,
3
VCC=4.5V, VINH=4.5V, VIH=3.15V,
VIL=1.35V, IOL=-50.0uA 1, 2 OUTPUT 4.40 V 1, 2,
3
VCC=5.5V, VINH=5.5V, VIH=3.85V,
VIL=1.65V, IOL=-50.0uA 1, 2 OUTPUT 5.40 V 1, 2,
3
VIOH Dynamic Output
Current HIGH VCC=5.5V, VIH=3.85V, VIL=1.65V,
IOH=-50.0mA 1,
2, 5 OUTPUT 3.85 V 1, 2,
3
ICCH Supply Current VCC=5.5V, VINH=5.5V 1, 2 VCC 4 uA 1
1, 2 VCC 80 uA 2, 3
4
MN54AC191-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: -55 C to 125 C. NOTE: -55C TEMPERATURE, SUBGROUP 3 IS GUARANTEED BUT
NOT TESTED.
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
ICCL Supply Current VCC=5.5V, VINL=0.0V 1, 2 VCC 4 uA 1
1, 2 VCC 80 uA 2, 3
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.
tpLH(1) Propagation Delay VCC=4.5V 3,
4, 7 CP to
Qn 1.5 10.0 ns 9
3,
4, 7 CP to
Qn 1.5 12.0 ns 10, 11
tpHL(1) Propagation Delay VCC=4.5V 3,
4, 7 CP to
Qn 1.5 10.0 ns 9
3,
4, 7 CP to
Qn 1.5 12.0 ns 10, 11
tpLH(2) Propagation Delay VCC=4.5V 3,
4, 7 CP to
TC 1.5 11.0 ns 9
3,
4, 7 CP to
TC 1.5 14.0 ns 10, 11
tpHL(2) Propagation Delay VCC=4.5V 3,
4, 7 CP to
TC 1.5 11.5 ns 9
3,
4, 7 CP to
TC 1.5 14.5 ns 10, 11
tpLH(3) Propagation Delay VCC=4.5V 3,
4, 7 CP to
RC 1.5 9.0 ns 9
3,
4, 7 CP to
RC 1.5 10.5 ns 10, 11
tpHL(3) Propagation Delay VCC=4.5V 3,
4, 7 CP to
RC 1.5 8.0 ns 9
3,
4, 7 CP to
RC 1.5 9.5 ns 10, 11
tpLH(4) Propagation Delay VCC=4.5V 3,
4, 7 CE to
RC 1.5 8.0 ns 9
3,
4, 7 CE to
RC 1.5 10.0 ns 10, 11
tpHL(4) Propagation Delay VCC=4.5V 3,
4, 7 CE to
RC 1.5 7.5 ns 9
3,
4, 7 CE to
RC 1.5 9.5 ns 10, 11
5
MN54AC191-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(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(5) Propagation Delay VCC=4.5V 3,
4, 7 U/D to
RC 1.5 9.0 ns 9
3,
4, 7 U/D to
RC 1.5 11.0 ns 10, 11
tpHL(5) Propagation Delay VCC=4.5V 3,
4, 7 U/D to
RC 1.5 9.0 ns 9
3,
4, 7 U/D to
RC 1.5 11.0 ns 10, 11
tpLH(6) Propagation Delay VCC=4.5V 3,
4, 7 U/D to
TC 1.5 8.5 ns 9
3,
4, 7 U/D to
TC 1.5 10.5 ns 10, 11
tpHL(6) Propagation Delay VCC=4.5V 3,
4, 7 U/D to
TC 1.5 8.5 ns 9
3,
4, 7 U/D to
TC 1.5 10.0 ns 10, 11
tpLH(7) Propagation Delay VCC=4.5V 3,
4, 7 Pn to
Qn 1.5 9.0 ns 9
3,
4, 7 Pn to
Qn 1.5 11.5 ns 10, 11
tpHL(7) Propagation Delay VCC=4.5V 3,
4, 7 Pn to
Qn 1.5 9.0 ns 9
3,
4, 7 Pn to
Qn 1.5 10.5 ns 10, 11
tpLH(8) Propagation Delay VCC=4.5V 3,
4, 7 PL to
Qn 1.5 10.0 ns 9
3,
4, 7 PL to
Qn 1.5 12.5 ns 10, 11
tpHL(8) Propagation Delay VCC=4.5V 3,
4, 7 PL to
Qn 1.5 9.5 ns 9
3,
4, 7 PL to
Qn 1.5 11.5 ns 10, 11
ts(H/L)(1) Setup Time, HIGH
or LOW VCC=4.5V 6 Pn to
PL 2.5 ns 9
6 Pn to
PL 3.0 ns 10, 11
th(H/L)(1) Hold Time, HIGH
or LOW VCC=4.5V 6 Pn to
PL 2.0 ns 9, 10,
11
6
MN54AC191-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(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
ts(L)(2) Setup Time, LOW VCC=4.5V 6 CE to
CP 5.0 ns 9
6 CE to
CP 6.0 ns 10, 11
th(L)(2) Hold Time, LOW VCC=4.5V 6 CE to
CP 0.5 ns 9, 10,
11
ts(H/L)(3) Setup Time HIGH
or LOW VCC=4.5V 6 U/D to
CP 6.0 ns 9
6 U/D to
CP 7.5 ns 10, 11
th(H/L)(3) Hold Time HIGH or
LOW VCC=4.5V 6 U/D to
CP 1.0 ns 9, 10,
11
tw(H)(1) Pulse Width, HIGH VCC=4.5V 6 CP
Pulse
Width
5.0 ns 9, 10,
11
tw(L)(1) Pulse Width, LOW VCC=4.5V 6 CP
Pulse
Width
6.0 ns 9, 10,
11
tw(L)(2) Pulse Width, LOW VCC=4.5V 6 PL
Pulse
Width
5.0 ns 9, 10,
11
trec(1) Recovery Time VCC=4.5V 6 PL to
CP 1.0 ns 9, 10,
11
Fmax(1) Maximum Count
Frequency VCC=4.5V 6 CP 90 MHz 9
6 CP 80 MHz 10, 11
tpLH(9) Propagation Delay VCC=3.0V 3, 4 CP to
Qn 1.0 13.0 ns 9
3, 4 CP to
Qn 1.0 16.5 ns 10, 11
tpHL(9) Propagation Delay VCC=3.0V 3, 4 CP to
Qn 1.0 13.0 ns 9
3, 4 CP to
Qn 1.0 16.0 ns 10, 11
tpLH(10) Propagation Delay VCC=3.0V 3, 4 CP to
TC 1.0 15.0 ns 9
3, 4 CP to
TC 1.0 19.5 ns 10, 11
7
MN54AC191-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(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
tpHL(10) Propagation Delay VCC=3.0V 3, 4 CP to
TC 1.0 15.5 ns 9
3, 4 CP to
TC 1.0 19.0 ns 10, 11
tpLH(11) Propagation Delay VCC=3.0V 3, 4 CP to
RC 1.0 11.5 ns 9
3, 4 CP to
RC 1.0 14.0 ns 10, 11
tpHL(11) Propagation Delay VCC=3.0V 3, 4 CP to
RC 1.0 10.0 ns 9
3, 4 CP to
RC 1.0 12.5 ns 10, 11
tpLH(12) Propagation Delay VCC=3.0V 3, 4 CE to
RC 1.0 11.5 ns 9
3, 4 CE to
RC 1.0 14.0 ns 10, 11
tpHL(12) Propagation Delay VCC=3.0V 3, 4 CE to
RC 1.0 10.5 ns 9
3, 4 CE to
RC 1.0 12.5 ns 10, 11
tpLH(13) Propagation Delay VCC=3.0V 3, 4 U/D to
RC 1.0 12.5 ns 9
3, 4 U/D to
RC 1.0 14.5 ns 10, 11
tpHL(13) Propagation Delay VCC=3.0V 3, 4 U/D to
RC 1.0 12.5 ns 9
3, 4 U/D to
RC 1.0 15.0 ns 10, 11
tpLH(14) Propagation Delay VCC=3.0V 3, 4 U/D to
TC 1.0 11.0 ns 9
3, 4 U/D to
TC 1.0 14.0 ns 10, 11
tpHL(14) Propagation Delay VCC=3.0V 3, 4 U/D to
TC 1.0 11.0 ns 9
3, 4 U/D to
TC 1.0 13.5 ns 10, 11
tpLH(15) Propagation Delay VCC=3.0V 3, 4 Pn to
Qn 1.0 13.5 ns 9
3, 4 Pn to
Qn 1.0 16.5 ns 10, 11
8
MN54AC191-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(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
tpHL(15) Propagation Delay VCC=3.0V 3, 4 Pn to
Qn 1.0 12.0 ns 9
3, 4 Pn to
Qn 1.0 15.5 ns 10, 11
tpLH(16) Propagation Delay VCC=3.0V 3, 4 PL to
Qn 1.0 14.0 ns 9
3, 4 PL to
Qn 1.0 18.0 ns 10, 11
tpHL(16) Propagation Delay VCC=3.0V 3, 4 PL to
Qn 1.0 12.5 ns 9
3, 4 PL to
Qn 1.0 15.5 ns 10, 11
ts(H/L)(4) Setup Time, HIGH
or LOW VCC=3.0V 6 Pn to
PL 3.5 ns 9
6 Pn to
PL 4.0 ns 10, 11
th(H/L)(4) Hold Time, HIGH
or LOW VCC=3.0V 6 Pn to
PL 1.0 ns 9
6 Pn to
PL 1.5 ns 10, 11
ts(L)(5) Set-up Time, LOW VCC=3.0V 6 CE to
CP 7.0 ns 9
6 CE to
CP 9.0 ns 10, 11
th(L)(5) Hold Time, LOW VCC=3.0V 6 CE to
CP 0.0 ns 9, 10,
11
ts(H/L)(6) Setup Time, HIGH
or LOW VCC=3.0V 6 U/D to
CP 9.0 ns 9
6 U/D to
CP 10.5 ns 10, 11
th(H/L)(6) Hold Time, HIGH
or LOW VCC=3.0V 6 U/D to
CP 0.0 ns 9, 10,
11
tw(H)(3) Pulse Width, HIGH VCC=3.0V 6 CP
Pulse
Width
5.0 ns 9, 10,
11
tw(L)(3) Pulse Width, LOW VCC=3.0V 6 CP
Pulse
Width
5.0 ns 9
6CP
Pulse
Width
6.0 ns 10, 11
9
MN54AC191-X REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(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
tw(L)(4) Pulse Width, LOW VCC=3.0V 6 PL
Pulse
Width
5.0 ns 9, 10,
11
trec(2) Recovery Time VCC=3.0V 6 PL to
CP 1.0 ns 9
6 PL to
CP 1.5 ns 10, 11
FMAX(2) Maximum Count
Frequency VCC=3.0V 6 CP 70 MHz 9
6 CP 55 MHz 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.
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: GUARANTEED BUT NOT TESTED (DESIGN CHARACTERIZATION DATA).
Note 7: +25C & +125C MIN LIMITS GUARANTEED FOR 5.5V BY GUARDBANDING 4.5V MIN. LIMITS.
10
