深圳市广辉电子有限公司

说明

These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the ’HC373 devices are transparent D-type latches. While 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 that were set up at the D inputs.

An output-enable (OE)\ input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly.

特性

• Wide Operating Voltage Range of 2 V to 6 V
• High-Current 3-State True Outputs Can Drive Up To 15 LSTTL Loads
• Low Power Consumption, 80-µA Max I_CC
• Typical t_pd = 13 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Max
• Eight High-Current Latches in a Single Package
• Full Parallel Access for Loading

参数