SNx4ACT244 Octal Buffers and Drivers With 3-State Outputs

1 Features

• 4.5-V to 5.5-V VCC operation

• Inputs accept voltages to 5.5 V

• Maximum tpd of 9.5 ns at 5 V

• Inputs are TTL compatible

• On products compliant to MIL-PRF-38535,

all parameters are tested unless otherwise noted.

On all other products, production processing does

not necessarily include testing of all parameters.

2 Applications

• LED displays

• Servers and telecommunication

• Switching networks

3 Description

These SNx4ACT244 octal buffers and drivers are

designed specifically to improve the performance and

density of 3-state memory address drivers, clock

drivers, and bus-oriented receivers and transmitters.

The SNx4ACT244 devices are organized as two 4-

bit buffers and drivers with separate output-enable

(OE) inputs. When OE is low, the device passes non-

inverted data from the A inputs to the Y outputs.

When OE is high, the outputs are in the high-

impedance state.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)(2)

PACKAGE SIZE(3)

SN74ACT244

DB (SSOP, 20)

7.2 mm × 5.3 mm

7.2 mm × 7.8 mm

DW (SOIC, 20)

12.8 mm × 7.5 mm

12.8 mm × 10.3 mm

N (PDIP, 20)

24.33 mm × 6.35 mm

24.33 mm × 9.4 mm

NS (SO, 20)

12.6 mm × 5.3 mm

12.6 mm × 7.8 mm

PW (TSSOP, 20)

6.5 mm × 4.4 mm

6.5 mm × 6.4 mm

RKS (VQFN, 20)

4.5 mm × 2.5 mm

4.5 mm × 2.5 mm

SN54ACT244

J (CDIP, 20)

24.2 mm × 6.92 mm

24.2 mm × 6.92 mm

W (CFP, 20)

13.09 mm × 6.92 mm

13.09 mm × 6.92 mm

FK (LCCC, 20)

8.89 mm × 8.89 mm

8.89 mm × 8.89 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The body size (length × width) is a nominal value and does

not include pins.

(3)

The package size (length × width) is a nominal value and

includes pins, where applicable.

Logic Diagram (Positive Logic)

SN54ACT244, SN74ACT244

SCAS517E – JUNE 1995 – REVISED JULY 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.