Quad Bus Buffer The **TC74VHCT125AFK** is a quad bus buffer gate (non-inverting) manufactured by **TOSHIBA**. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Logic Family:** VHCT (Very High-Speed CMOS with TTL Compatibility)
- **Number of Channels:** 4 (Quad)
- **Logic Type:** Buffer/Line Driver, Non-Inverting
- **Supply Voltage Range (VCC):** 4.5V to 5.5V
- **Input Voltage (VI):** 0V to VCC
- **Output Voltage (VO):** 0V to VCC
- **High-Level Input Voltage (VIH):** 2.0V (min)
- **Low-Level Input Voltage (VIL):** 0.8V (max)
- **High-Level Output Current (IOH):** -8mA
- **Low-Level Output Current (IOL):** 8mA
- **Propagation Delay (tpd):** 6.5ns (max) at 5V
- **Operating Temperature Range:** -40°C to +85°C
- **Package Type:** SSOP-14
### **Descriptions:**
- The **TC74VHCT125AFK** is a high-speed CMOS logic IC with TTL-compatible inputs.
- It features **3-state outputs**, allowing multiple outputs to be connected to a common bus without interference.
- Designed for **bus interface applications**, it provides buffering and signal driving capabilities.
- The device is optimized for **low power consumption** while maintaining high-speed operation.
### **Features:**
- **TTL-Compatible Input Levels** (5V operation)
- **3-State Outputs** for bus-oriented applications
- **Balanced Propagation Delays** for reliable signal transmission
- **Low Power Consumption** (ICC = 4μA max at Ta = 25°C)
- **High Noise Immunity** (VNH = VNL = 28% of VCC min)
- **ESD Protection** (Human Body Model ≥ 2000V)
- **Wide Operating Voltage Range** (4.5V to 5.5V)
This device is commonly used in **digital systems, data buses, and signal buffering applications**.
