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

SN74HC573A
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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 Input type Output type VCC (Min) (V) VCC (Max) (V) Channels (#) Clock Frequency (Max) (MHz) ICC (uA) IOL (Max) (mA) IOH (Max) (mA) Rating Package Group
SN74HC573A Order now HC     Standard CMOS     3-State     2     6     8     28     80     7.8     -7.8     Catalog     PDIP | 20
SOIC | 20
SSOP | 20
TSSOP | 20    
SN54HC573A Samples not available HC     Standard CMOS     3-State     2     6     8     28     160     7.8     -7.8     Military     CDIP | 20
CFP | 20
LCCC | 20    
SN74HC573A-Q1 Order now HC     Standard CMOS     3-State     2     6     8     28     80     7.8     -7.8     Automotive     SOIC | 20
TSSOP | 20