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)

Static tests at

+25

Static tests at

+125

Static tests at

-55

Dynamic tests at

+25

Dynamic tests at

+125

Dynamic tests at

-55

Functional tests at

+25

Functional tests at

+125

Functional tests at

-55

Switching tests at

+25

Switching tests at

+125

Switching tests at

-55

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 mA

Vi = -0.5V

+20 mA

Vi = Vcc +0.5V

DC Input Voltage (Vi)

-0.5V to Vcc +0.5V

DC Output Diode Current (Iok)

-20 mA

Vo = -0.5V

+20 mA

Vo = 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/ns

Vcc @ 3.0V, 4.5V, 5.5V

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

1, 2 INPUT

1.0

2, 3

IIL

LOW Level Input
Current

VCC=5.5V, VM=0.0V

1, 2 INPUT

-0.1

1, 2 INPUT

-1.0

2, 3

VOL

LOW Level Output
Voltage

VCC=3.0V, VIL=0.9V, IOL=50.0uA

1, 2 OUTPUT

.10

1, 2,
3

VCC=4.5V, VIL=1.35V, IOL=50.0uA

1, 2 OUTPUT

.10

1, 2,
3

VCC=5.5V, VIL=1.65V, IOL=50.0uA

1, 2 OUTPUT

.10

1, 2,
3

VCC=3.0V, VIL=0.9V, IOL=12.0mA

1, 2 OUTPUT

.36

1, 2 OUTPUT

.50

2, 3

VCC=4.5V, VIL=1.35V, IOL=24.0mA

1, 2 OUTPUT

.36

1, 2 OUTPUT

.50

2, 3

VCC=5.5V, VIL=1.65V, IOL=24.0mA

1, 2 OUTPUT

.36

1, 2 OUTPUT

.50

2, 3

VIOL

Dynamic Output
Current LOW

VCC=5.5V, VIL=1.65V, IOL=50.0mA

1,
2, 5

OUTPUT

1.65

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

1, 2,
3

VCC=4.5V, VIL=3.15V, VIL=1.35V,
IOH=-50.0uA

1, 2 OUTPUT

4.40

1, 2,
3

VCC=5.5V, VIL=3.85V, VIL=1.65V,
IOH=-50.0uA

1, 2 OUTPUT

5.40

1, 2,
3

VCC=3.0V, VIL=2.1V, VIL=0.90V,
IOH=-12.0mA

1, 2 OUTPUT

2.56

1, 2 OUTPUT

2.40

2, 3

VCC=4.5V, VIL=3.15V, VIL=1.35V,
IOH=-24.0mA

1, 2 OUTPUT

3.86

1, 2 OUTPUT

3.70

2, 3

VCC=5.5V, VIL=3.85V, VIL=1.65V,
IOH=-24.0mA

1, 2 OUTPUT

4.86

1, 2 OUTPUT

4.70

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

1, 2,
3

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

1, 2 OUTPUT

5.0

2, 3

VCC=4.5V, VM=3.0V, VINL=0.0V,
VIH=3.15V

1, 2 OUTPUT

0.25

1, 2 OUTPUT

5.0

2, 3

VCC=5.5V, VM=5.5V, VINL=0.0V,
VIH=3.85V

1, 2 OUTPUT

0.25

1, 2 OUTPUT

5.0

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

1, 2 OUTPUT

-5.0

2, 3

VCC=4.5V, VM=0.0V, VINH=4.5V,
VIH=3.15V, VIL=1.35V

1, 2 OUTPUT

-0.25

1, 2 OUTPUT

-5.0

2, 3

VCC=5.5V, VM=0.0V, VINH=5.5V,
VIH=3.85V, VIL=1.65V

1, 2 OUTPUT

-0.25

1, 2 OUTPUT

-5.0

2, 3

ICCH

Supply Current

VCC=5.5V, VINH=5.5V, VINL=0.0V

1, 2 VCC

2, 3

ICCL

Supply Current

VCC=5.5V, VINL=0.0V

1, 2 VCC

2, 3

ICCZ

Supply Current

VCC=5.5V, VINL=0.0V, VINH=0.0V

1, 2 VCC

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

3,
4, 6

IN to
ON

1.5

9.5

10, 11

tpHL (1)

Propagation delay

VCC=4.5V

3,
4, 6

IN to
ON

1.5

8.0

3,
4, 6

IN to
ON

1.5

9.0

10, 11

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

3,
4, 6

OE to
ON

1.5

9.0

10, 11

tpZL (1)

Output Enable
Time

VCC=4.5V

3,
4, 6

OE to
ON

1.5

8.5

3,
4, 6

OE to
ON

1.5

10.5

10, 11

tpHZ (1)

Output Disable
Time

VCC=4.5V

3,
4, 6

OE to
ON

1.5

8.5

3,
4, 6

OE to
ON

1.5

10.5

10, 11

tpLZ (1)

Output Disable
Time

VCC=4.5V

3,
4, 6

OE to
ON

1.5

9.0

3,
4, 6

OE to
ON

1.5

11.0

10, 11

tpLH (2)

Propagation Delay

VCC=3.0V

3, 4 IN to

1.0

11.0

3, 4 IN to

1.0

12.5

10, 11

tpHL (2)

Propagation Delay

VCC=3.0V

3, 4 IN to

1.0

10.5

3, 4 IN to

1.0

12.0

10, 11

tpZH (2)

Output Enable
Time

VCC=3.0V

3, 4 OE to

1.0

9.5

3, 4 OE to

1.0

11.5

10, 11

tpZL (2)

Output Enable
Time

VCC=3.0V

3, 4 OE to

1.0

11.0

3, 4 OE to

1.0

13.0

10, 11

tpHZ (2)

Output Disable
Time

VCC=3.0V

3, 4 OE to

1.0

10.0

3, 4 OE to

1.0

12.5

10, 11

tpLZ (2)

Output Disable
Time

VCC=3.0V

3, 4 OE to

1.0

11.0

3, 4 OE to

1.0

13.0

10, 11

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.

Электронный компонент: 54AC244WG-QML