TEXAS INSTRUMENTS SN54ALS874B, SN74ALS874B, SN74ALS876A, SN74AS874, SN74AS876 - DUAL 4-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOPS Technical Data Sheet
Summary
These dual 4-bit D-type edge-triggered flip-flops are essential digital logic components featuring high-performance 3-state outputs, making them ideal for robust bus driving applications, buffer registers, and I/O port implementation. This manual provides detailed specifications on pinouts, operating logic symbols, functional diagrams, and package options (including DIP, DW, NT). Engineers requiring reliable synchronous memory elements with clear synchronization and multiple temperature grade options (-55°C to 125°C) will find this resource critical for circuit design and validation.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 20 |
| File Size | 585.31 KB |
| Published | June 02, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What are these flip-flops primarily used for?
They feature 3-state outputs designed specifically as bus drivers, suitable for implementing buffer registers or I/O ports.
What is the required input voltage (VCC)?
The standard input voltage (VCC) specified is 7V.
Do all models support extreme temperature ranges?
No. The SN54ALS874B operates over a wide range of –55°C to 125°C, while other versions operate from 0°C to 70°C.
How do I independently reset outputs without cycling the clock?
The SN74ALS876A and SN74AS876 models have preset (PRE) inputs; taking PRE low causes the Q or Q outputs to go low irrespective of the clock.