TC74VHCT245AF/AFT/AFK

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74VHCT245AF,TC74VHCT245AFT,TC74VHCT245AFK

Octal Bus Transceiver

The TC74VHCT245A is an advanced high speed CMOS OCTAL

technology. It achieves the high speed operation similar to

equivalent Bipolar Schottky TTL while maintaining the CMOS

low power dissipation.

It is intended for two-way asynchronous communication

between data busses. The direction of data transmission is

determined by the level of the DIR input.

The enable input ( G ) can be used to disable the device so that

the busses are effectively isolated.

The input voltage are compatible with TTL output voltage.

This device may be used as a level converter for interfacing 3.3

V to 5 V system.

Input protection and output circuit ensure that 0 to 5.5 V can

the supply voltage. These structure prevents device destruction

due to mismatched supply and input/output voltages such as

battery back up, hot board insertion, etc.

Note:

Output in off-state

Features (Note)

• Power down protection is provided on all inputs and outputs

• Pin and function compatible with the 74 series

(74AC/HC/F/ALS/LS etc.) 245 type.

Note:

Do not apply a signal to any bus terminal when it is in

the output mode. Damage may result.

All floating (high impedance) bus terminals must

have their input levels fixed by means of pull up or

pull down resistors.

TC74VHCT245AF

TC74VHCT245AFT

TC74VHCT245AFK

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.)