Original Creation Date: 06/28/96
Last Update Date: 03/18/02
Last Major Revision Date: 06/28/96
MN54AC244-X REV 1B1 MICROCIRCUIT DATA SHEET
Octal Buffers/Line Drivers With 3-State Outputs
General Description
The AC244 is an octal buffer and line driver designed to be employed as a memory address
driver, clock driver and bus-oriented transmitter receiver which provides improved PC
board density.
NS Part Numbers
54AC244DMQB
54AC244FMQB
54AC244LMQB
54AC244WG-QML
Industry Part Number
54AC244
Prime Die
Z244
Controlling Document
SEE FEATURES SECTION
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
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MICROCIRCUIT DATA SHEET
MN54AC244-X REV 1B1
Features
- Icc and Ioz reduced by 50%
- TRI-STATE outputs drive bus lines or buffer memory address registers
- Ouptus source/sink 24 mA
Standard Military Drawing (SMD)
54AC244DMQB 5962-8755201RA
54AC244FMQB 5962-8755201SA
54AC244LMQB 5962-87552012A
54AC244WG-QML 5962-8755201ZA
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MICROCIRCUIT DATA SHEET
MN54AC244-X REV 1B1
(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 specification 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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MN54AC244-X REV 1B1 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, 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, VIL=0.9V, IOL=50.0uA 1, 2 OUTPUT .10 V 1, 2,
3
VCC=4.5V, VIL=1.35V, IOL=50.0uA 1, 2 OUTPUT .10 V 1, 2,
3
VCC=5.5V, VIL=1.65V, IOL=50.0uA 1, 2 OUTPUT .10 V 1, 2,
3
VCC=3.0V, VIL=0.9V, IOL=12.0mA 1, 2 OUTPUT .36 V 1
1, 2 OUTPUT .50 V 2, 3
VCC=4.5V, VIL=1.35V, IOL=24.0mA 1, 2 OUTPUT .36 V 1
1, 2 OUTPUT .50 V 2, 3
VCC=5.5V, VIL=1.65V, IOL=24.0mA 1, 2 OUTPUT .36 V 1
1, 2 OUTPUT .50 V 2, 3
VIOL Dynamic Output
Current LOW VCC=5.5V, VIL=1.65V, IOL=50.0mA 1,
2, 5 OUTPUT 1.65 V 1, 2,
3
VOH HIGH Level Output
Voltage VCC=3.0V, VIL=2.1V, VIL=0.9V,
IOH=-50.0uA 1, 2 OUTPUT 2.90 V 1, 2,
3
VCC=4.5V, VIL=3.15V, VIL=1.35V,
IOH=-50.0uA 1, 2 OUTPUT 4.40 V 1, 2,
3
VCC=5.5V, VIL=3.85V, VIL=1.65V,
IOH=-50.0uA 1, 2 OUTPUT 5.40 V 1, 2,
3
VCC=3.0V, VIL=2.1V, VIL=0.90V,
IOH=-12.0mA 1, 2 OUTPUT 2.56 V 1
1, 2 OUTPUT 2.40 V 2, 3
VCC=4.5V, VIL=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, VIL=3.85V, VIL=1.65V,
IOH=-24.0mA 1, 2 OUTPUT 4.86 V 1
1, 2 OUTPUT 4.70 V 2, 3
VIOH Dynamic Output
Current HIGH VCC=5.5V, VIL=3.85V, VIL=1.65V,
IOH=-50.0mA 1,
2, 5 OUTPUT 3.85 V 1, 2,
3
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MN54AC244-X REV 1B1 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
IOZH Maximum TRI-STATE
Current High VCC=3.0V, VM=3.0V, VINL=0.0V, VIH=2.1V 1, 2 OUTPUT 0.25 uA 1
1, 2 OUTPUT 5.0 uA 2, 3
VCC=4.5V, VM=3.0V, VINL=0.0V,
VIH=3.15V 1, 2 OUTPUT 0.25 uA 1
1, 2 OUTPUT 5.0 uA 2, 3
VCC=5.5V, VM=5.5V, VINL=0.0V,
VIH=3.85V 1, 2 OUTPUT 0.25 uA 1
1, 2 OUTPUT 5.0 uA 2, 3
IOZL Maximum TRI-STATE
Current Low VCC=3.0V, VM=0.0V, VINH=3.0V,
VIH=2.1V, VIL=0.9V 1, 2 OUTPUT -0.25 uA 1
1, 2 OUTPUT -5.0 uA 2, 3
VCC=4.5V, VM=0.0V, VINH=4.5V,
VIH=3.15V, VIL=1.35V 1, 2 OUTPUT -0.25 uA 1
1, 2 OUTPUT -5.0 uA 2, 3
VCC=5.5V, VM=0.0V, VINH=5.5V,
VIH=3.85V, VIL=1.65V 1, 2 OUTPUT -0.25 uA 1
1, 2 OUTPUT -5.0 uA 2, 3
ICCH Supply Current VCC=5.5V, VINH=5.5V, VINL=0.0V 1, 2 VCC 4 uA 1
1, 2 VCC 80 uA 2, 3
ICCL Supply Current VCC=5.5V, VINL=0.0V 1, 2 VCC 4 uA 1
1, 2 VCC 80 uA 2, 3
ICCZ Supply Current VCC=5.5V, VINL=0.0V, VINH=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=3ns, TF=3ns, Temp. Range: -55C to 125C. NOTE: -55C TEMPERATURE, SUBGROUP 11
IS GUARANTEED BUT NOT TESTED.
tpLH (1) Propagation delay VCC=4.5V 3,
4, 6 IN to
ON 1.5 8.5 ns 9
3,
4, 6 IN to
ON 1.5 9.5 ns 10, 11
tpHL (1) Propagation delay VCC=4.5V 3,
4, 6 IN to
ON 1.5 8.0 ns 9
3,
4, 6 IN to
ON 1.5 9.0 ns 10, 11
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MN54AC244-X REV 1B1 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=3ns, TF=3ns, 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
tpZH (1) Output Enable
Time VCC=4.5V 3,
4, 6 OE to
ON 1.5 7.5 ns 9
3,
4, 6 OE to
ON 1.5 9.0 ns 10, 11
tpZL (1) Output Enable
Time VCC=4.5V 3,
4, 6 OE to
ON 1.5 8.5 ns 9
3,
4, 6 OE to
ON 1.5 10.5 ns 10, 11
tpHZ (1) Output Disable
Time VCC=4.5V 3,
4, 6 OE to
ON 1.5 8.5 ns 9
3,
4, 6 OE to
ON 1.5 10.5 ns 10, 11
tpLZ (1) Output Disable
Time VCC=4.5V 3,
4, 6 OE to
ON 1.5 9.0 ns 9
3,
4, 6 OE to
ON 1.5 11.0 ns 10, 11
tpLH (2) Propagation Delay VCC=3.0V 3, 4 IN to
ON 1.0 11.0 ns 9
3, 4 IN to
ON 1.0 12.5 ns 10, 11
tpHL (2) Propagation Delay VCC=3.0V 3, 4 IN to
ON 1.0 10.5 ns 9
3, 4 IN to
ON 1.0 12.0 ns 10, 11
tpZH (2) Output Enable
Time VCC=3.0V 3, 4 OE to
ON 1.0 9.5 ns 9
3, 4 OE to
ON 1.0 11.5 ns 10, 11
tpZL (2) Output Enable
Time VCC=3.0V 3, 4 OE to
ON 1.0 11.0 ns 9
3, 4 OE to
ON 1.0 13.0 ns 10, 11
tpHZ (2) Output Disable
Time VCC=3.0V 3, 4 OE to
ON 1.0 10.0 ns 9
3, 4 OE to
ON 1.0 12.5 ns 10, 11
tpLZ (2) Output Disable
Time VCC=3.0V 3, 4 OE to
ON 1.0 11.0 ns 9
3, 4 OE to
ON 1.0 13.0 ns 10, 11
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MN54AC244-X REV 1B1 MICROCIRCUIT DATA SHEET
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 TEST (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: +25C & +125C MIN LIMITS GUARANTEED FOR 5.5V BY GUARDBANDING 4.5V MIN. LIMITS.
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MICROCIRCUIT DATA SHEET
MN54AC244-X REV 1B1
Graphics and Diagrams
GRAPHICS# DESCRIPTION
WG20ARB CERPACK, 20 LEAD GULL WING (P/P DWG)
See attached graphics following this page.
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MICROCIRCUIT DATA SHEET
MN54AC244-X REV 1B1
Revision History
Rev ECN # Rel Date Originator Changes
1B1 M0003969 03/18/02 Rose Malone Update MDS: MN54AC244-X, Rev. 1A0 to MN54AC244-X,
Rev. 1B1. Added SMD Numbers and WG pkg to Main Table
and Features Section, also added WG Mkt Dwg to
Graphics Section.
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