Octal D-Type Latch with 3-State Output The TC74VHCT373AFK is a high-speed CMOS octal D-type latch with 3-state outputs, manufactured by Toshiba. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Logic Type:** Octal D-type latch with 3-state outputs
- **Supply Voltage (VCC):** 4.5V to 5.5V
- **High-Speed Operation:** tpd = 5.5 ns (max) at VCC = 5V
- **Low Power Consumption:** ICC = 4 μA (max) at Ta = 25°C
- **Output Drive Capability:** ±8 mA at VCC = 5V
- **Input Voltage Levels:**
- VIH (High-level input voltage): 2.0V (min) at VCC = 4.5V
- VIL (Low-level input voltage): 0.8V (max) at VCC = 4.5V
- **Output Voltage Levels:**
- VOH (High-level output voltage): 4.4V (min) at VCC = 4.5V, IOH = -4 mA
- VOL (Low-level output voltage): 0.1V (max) at VCC = 4.5V, IOL = 4 mA
- **Operating Temperature Range:** -40°C to +85°C
- **Package Type:** 20-pin SSOP (Shrink Small Outline Package)
### **Descriptions:**
- The TC74VHCT373AFK is designed for bus interface applications requiring high-speed operation and 3-state outputs.
- It features eight D-type latches with separate input (D) and output (Q) pins, controlled by a latch enable (LE) and output enable (OE) signal.
- The 3-state outputs allow multiple devices to share a common bus without interference.
### **Features:**
- **Compatible with TTL Input Levels:** Ensures direct interfacing with TTL logic devices.
- **3-State Outputs:** Allows bus-oriented applications.
- **High Noise Immunity:** Typical VNH = 0.9V at VCC = 5V.
- **Power-Down Protection:** Inputs and outputs include clamping diodes for protection against electrostatic discharge (ESD).
- **Latch-Up Performance:** Exceeds 300 mA per JESD 78.
This information is based solely on the manufacturer's datasheet. No additional guidance or suggestions are included.
