the 74hc/hct259 is a high-speed 8-bit addressable latch designed for general purpose storage applications in digital systems.
The Philips 74HC/HCT259 is a high-speed Si-gate CMOS device designed for general-purpose storage applications in digital systems. It combines a demultiplexer and an 8-bit latch with serial-to-parallel capability, allowing data to be written into addressed latches or used as a 3-to-8 active HIGH decoder. The device features a common active LOW reset input and is pin compatible with low power Schottky TTL (LSTTL).
| Device Type | 8-bit addressable latch |
|---|---|
| Technology | high-speed Si-gate CMOS |
| TTL Compatibility | low power Schottky TTL (LSTTL) |
| Output Capability | standard |
| IC Category | MSI |
| Supply Voltage (HC) | GND to Vcc |
| Supply Voltage (HCT) | GND to Vcc-1.5 V |
| Operating Temperature (HC) | -40 to +85 °C |
| Operating Temperature (HCT) | -40 to +125 °C |
The device operates in addressable latch, memory, 3-to-8 active HIGH decoder, and reset modes.
The reset is activated by an active LOW common reset input (MR).