SN74HC573A Octal Transparent D-Type Latches With 3-State Outputs | TI.com

SN74HC573A (ACTIVE) Octal Transparent D-Type Latches With 3-State Outputs

 

Description

The SNx4HC573A devices are octal transparent D-type latches that 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.

While the latch-enable (LE) input is high, the Q outputs respond to the data (D) inputs. When LE is low, the outputs are latched to retain the data that was set up.

Features

  • Wide Operating Voltage Range from 2 V to 6 V
  • High-Current 3-State Outputs Drive Bus Lines Directly up to 15 LSTTL Loads
  • Low Power Consumption: 80-µA Maximum ICC
  • Typical tpd = 21 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current: 1 µA (Maximum)
  • Bus-Structured Pinout

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) 3-state output Rating Operating temperature range (C)
SN74HC573A Order now HC     2     6     8     6     28     0.08     38     7.8     -7.8     Yes     Catalog     -40 to 85    
SN54HC573A Samples not available HC     2     6     8     6     28     0.08     38     7.8     -7.8     Yes     Military     -55 to 125    
SN74HC573A-Q1 Order now HC     2     6     8     6     28     0.08     38     7.8     -7.8     Yes     Automotive     -40 to 125