SN74ALS843 Overview
Key Specifications
Package: SOIC
Mount Type: Surface Mount
Pins: 24
Operating Voltage: 5 V
Description
SN74ALS843 9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS SDAS232A – DECEMBER 1983 – REVISED JANUARY 1995 DW OR NT PACKAGE (TOP VIEW) OE 1 1D 2 2D 3 3D 4 4D 5 5D 6 6D 7 7D 8 8D 9 9D 10 CLR 11 GND 12 24 VCC 23 1Q 22 2Q 21 3Q 20 4Q 19 5Q 18 6Q 17 7Q 16 8Q 15 9Q 14 PRE 13 LE This 9-bit bus-interface D-type latch features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
Key Features
- 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads
- It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers
- The nine latches are transparent D-type latches with noninverting data (D) inputs
- In the high-impedance state, the outputs neither load nor drive the bus lines significantly
- The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components
