Member of the Texas Instruments

Widebus Family

4-Ω Switch Connection Between Two Ports

Rail-to-Rail Switching on Data I/O Ports

Ioff Supports Partial-Power-Down Mode

Operation

Break-Before-Make Feature

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

ESD Protection Exceeds JESD 22

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

description/ordering information

The SN74CBTLV16212 provides 24 bits of

high-speed bus switching or exchanging. The low

on-state resistance of the switch allows

connections to be made with minimal propagation

delay.

The device operates as a 24-bit bus switch or a

12-bit bus exchanger, which provides data

exchanging between the four signal ports via the

data-select (S0, S1, S2) terminals.

This device is fully specified for

partial-power-down applications using Ioff. The Ioff

feature ensures that damaging current will not

backflow through the device when it is powered

down. The device has isolation during power off.

The SN74CBTLV16212 is specified by the

break-before-make feature to have no through

current when switching between B ports.