🔒 SN74LS279 - Quad S-R Latch for Logic State Retention 🔒
The SN74LS279 is a digital IC that provides four independent Set-Reset (S-R) latches, commonly used in sequential logic control and state memory circuits. Each latch includes a Set (S) and Reset (R) input to maintain a defined output state until changed by a new signal.
✅ Technical Specifications:
- Number of Latches: 4 independent SR latches
- Inputs: Set (S), Reset (R)
- Outputs: Q (inverted output typically not present)
- Logic Type: TTL Low-Power Schottky (LS)
- Operating Voltage: 4.75V to 5.25V
- Output Current: ±8 mA
- Propagation Delay: ~20ns typical
- Operating Temperature: 0°C to 70°C
- Package: DIP-16
🔹 Features:
- Maintains logic state until a change command is received
- Low power, high-speed TTL design
- Easily integrated into sequential and logic control circuits
- Useful in lockout, memory, and protection applications
- Compatible with microcontrollers like Arduino & Raspberry Pi
📌 Common Applications:
- Logic state storage in digital systems
- State-based control circuit design
- Automatic switching logic (latch circuits)
- Safety and interlock system designs
- Counters and sequential logic applications
🔹 Approximate Weight: 10 grams
