GR 74HC573S

The 74HC573 is an octal D-type latch designed using CMOS process technology, consisting of eight independent D-type flip-flops and additional gate circuits. It features data latching and tri-state output capabilities. When the latch enable LE input is HIGH, the Q outputs follow the D input data. When LE is LOW, the outputs are latched and retain their current state, unaffected by the D inputs. When the output enable OE is HIGH, all outputs enter a high-impedance state. When OE is LOW, all outputs operate in push-pull mode. The 74HC573 is suitable for use as buffer registers, I/O ports, bidirectional bus drivers, and working registers.

• Wide operating voltage range: 2.0V to 6.0V
• Data latch and tri-state output
• Low input current: ≤ 1μA @ VCC = 6V
• Output propagation delay tpd typical 21ns
• Low power consumption: 80μA max
• Package types: PDIP20, SOP20, SSOP20, TSSOP20
• High-current tri-state outputs for direct bus driving or up to 15 LSTTL loads

• Buffer register
• Working register
• Bidirectional bus driver