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.