74HC259 8-Bit Addressable Latch : Pinout, Application and Datasheet

The 74HC259 is an 8-bit addressable latch. The device has four modes operation. In the addressable latch mode, the data on the D input is written to the latch addressed by inputs AO to A3. The addressing latch will follow the data input, Latches that are not addressed will retain their previous state. In memory mode, all latches are reserved Their previous state is not affected by data or address input. Between 3 and 8 decoding or demultiplexing mode, addressing output follows D input and all other The output is low. In reset mode, all outputs are forced to low level and are not affected by data or address input. The input includes clamping diodes. This makes it possible to use the current A limiting resistor connects the input to a voltage exceeding VCC.

● Combined demultiplexer and 8-bit latch

● Serial to parallel capability

● Output of each available storage bit

● Random (addressable) data input

● Easy to expand

● Common reset input

● Can be used as 3 to 8 active HIGH decoder

● Comply with JEDEC standard number. 7A

● Input level: CMOS level

● ESD protection:

   u HBM JESD22-A114F exceeds 2000 V

   u MM JESD22-A115-A over 200 V

   u CDM JESD22E exceeds 1000 V

● Multiple package options

● Specified from 40 C to +85 C and from 40 C to +125 C

Toshiba Semiconductor and Storage 74HC259D technical specifications, attributes, parameters and parts with similar specifications to Toshiba Semiconductor and Storage 74HC259D.

Logic Symbol

IEC logic symbol

Functional Diagram

Toshiba Corporation  is a Japanese multinational corporation headquartered in Tokyo Minato. Its diversified products and services include power, industrial and social infrastructure systems, elevators and escalators, electronic components, semiconductors, hard disk drives, printers, batteries, lighting, and IT solutions such as quantum cryptography. It is one of the largest manufacturers of personal computers, consumer electronics, household appliances and medical equipment. As a semiconductor company and the inventor of flash memory, Toshiba has been one of the top 10 in the chip industry until its flash memory division was spun off in the late 2010s as Toshiba Memory, which later became Kioxia.