QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS The SN54HCT125J is a quad bus buffer gate manufactured by Texas Instruments (TI). Here are its key specifications, descriptions, and features:
### **Specifications:**
- **Logic Type:** Buffer/Driver
- **Technology:** HCT (High-Speed CMOS, TTL-Compatible)
- **Number of Channels:** 4 (Quad)
- **Supply Voltage Range:** 4.5V to 5.5V
- **Input Voltage (High):** 2V (min)
- **Input Voltage (Low):** 0.8V (max)
- **Output Current (High/Low):** ±6mA
- **Propagation Delay:** 14ns (typical) at 5V
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)
- **Package Type:** Ceramic DIP (14-pin)
### **Descriptions:**
- The SN54HCT125J is a high-speed CMOS logic quad buffer with 3-state outputs.
- It is designed for bus-oriented applications where multiple outputs may be connected to a common bus.
- The device features separate output-enable (OE) controls for each buffer.
### **Features:**
- **TTL-Compatible Inputs:** Works with TTL logic levels.
- **3-State Outputs:** Allows outputs to be disabled (high-impedance state).
- **Wide Operating Voltage Range:** Supports 4.5V to 5.5V.
- **Low Power Consumption:** Typical ICC of 4µA (static).
- **High Noise Immunity:** CMOS technology provides robust noise performance.
- **Military Temperature Range:** Suitable for harsh environments.
This device is commonly used in digital systems for signal buffering, level shifting, and bus interfacing.
