TC74LCX164245FT

2002-01-11

1

TOSHIBA CMOS Digital Integrated Circuit

Silicon Monolithic

TC74LCX164245FT

16-Bit Dual Supply Bus Transceiver

The TC74LCX164245FT is a dual supply, advanced high-speed

CMOS 16-bit dual supply voltage interface bus transceiver

fabricated with silicon gate CMOS technology.

Designed for use as an interface between a 5-V bus and a 3.3-V

or 2.5-V bus in mixed 5-V/3.3-V or 2.5-V supply systems, it

achieves high-speed operation while maintaining the CMOS low

power dissipation.

It is intended for 2 way asynchronous communication between

data busses. The direction of data transmission is determined by

the level of the DIR input. The enable input (OE) can be used to

disable the device so that the buses are effectively isolated. The

B-port interfaces with the 5-V bus, the A-port with the 3.3-V or

2.5-V bus.

All inputs are equipped with protection circuits against static discharge or transient excess voltage.

Features

· Bidirectional interface between 5-V and 3.3-V or 2.5-V buses

· Power-down protection provided on all inputs and outputs

· Latch-up performance: ±500 mA

· Package: TSSOP (thin shrink small outline package)

Note 1: Do not apply a signal to any bus pins when it is in the output mode. Damage may result.

All floating (high impedance) bus pins must have their input fixed by means of pull-up or pull-down resistors.

Weight: 0.25 g (typ.)