1 Features

• Member of the Texas Instruments Widebus+™

Family

• Operates from 1.65 V to 3.6 V

• Inputs accept voltages to 5.5 V

• Max tpd of 4.2 ns at 3.3 V

• Typical VOLP (output ground bounce)

< 0.8 V at VCC = 3.3 V, TA = 25°C

• Typical VOHV (output VOH undershoot)

> 2 V at VCC = 3.3 V, TA = 25°C

• Ioff supports partial-power-down mode operation

• Supports mixed-mode signal operation

(5-V Input and output voltages with

3.3-V VCC)

• Bus hold on data inputs eliminates the need for

external pullup/pulldown resistors

• Latch-up performance exceeds 250 mA per JESD

17

• ESD protection exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

2 Applications

• Buffer registers

• I/O ports

• Bidirectional bus drivers

• Working registers

3 Description

This 32-bit transparent D-type latch is designed for

1.65-V to 3.6-V VCC operation.

The SN74LVCH32373A is particularly suitable for

implementing buffer registers, I/O ports, bidirectional

bus drivers, and working registers. It can be used as

four 8-bit latches, two 16-bit latches, or one 32-bit

latch. When the latch-enable (LE) input is high, the Q

outputs follow the data (D) inputs. When LE is taken

low, the Q outputs are latched at the levels set up at

the D inputs.