TC74VHC240,244F/FT/FK

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74VHC240F,TC74VHC240FT,TC74VHC240FK

TC74VHC244F,TC74VHC244FT,TC74VHC244FK

Octal Bus Buffer

TC74VHC240F/FT/FK

Inverted, 3-State Outputs

TC74VHC244F/FT/FK

Non-Inverted, 3-State Outputs

The TC74VHC240 and 244 are advanced high speed CMOS

technology.

They achieve the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

The 74VHC240 is an inverting 3-state buffer having two

active-low output enables. The TC74VHC244 is a non-inverting

3-state buffer, and has two active-low output enables.

These devices are designed to be used with 3-state memory

address drivers, etc.

An input protection circuit ensures that 0 to 5.5 V can be

applied to the input pins without regard to the supply voltage.

This device can be used to interface 5 V to 3 V systems and two

supply systems such as battery back up. This circuit prevents

device destruction due to mismatched supply and input voltages.

Features

• Power down protection is provided on all inputs.

• Pin and function compatible with 74ALS240/244

Weight

SOP20-P-300-1.27A

: 0.22 g (typ.)

TSSOP20-P-0044-0.65A

: 0.08 g (typ.)

VSSOP20-P-0030-0.50

: 0.03 g (typ.)

TC74VHC240F, TC74VHC244F

TC74VHC240FT, TC74VHC244FT

TC74VHC240FK, TC74VHC244FK