74HC259 - nexperia

74HC259 8-bit addressable latch

The 74HC259; 74HCT259 is an 8-bit addressable latch. The device features four modes of operation. In the addressable latch mode, data on the D input is written into the latch addressed by the inputs A0 to A3. The addressed latch will follow the data input, non-addressed latches will retain their previous states. In memory mode, all latches retain their previ.

Features

• Wide supply voltage range from 2.0 V to 6.0 V
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
• Complies with JEDEC standards:
• JESD8C (2.7 V to 3.6 V)
• JESD7A (2.0 V to 6.0 V)
• Combined demultiplexer and 8-bit latch
• Serial-to-parallel capability
• Output from each storage bit available
• Random (addressable) data entry
• Easily expandable
• Common reset input
• Useful as a 3-to-8 active HIGH decoder
• Input levels:
• For 74HC259: CMOS level
• For 74HCT259: TTL level
• ESD protection:
• HBM: ANSI/ESDA/Jedec JS-001 Class 2 exceeds 2000 V
• CDM: ANSI/ESDA/Jedec JS-002 C.