Octal D-Type Latch with 3-State Output The TC74VHCT573AFK is a high-speed CMOS octal D-type latch manufactured by Toshiba. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Logic Family:** CMOS
- **Number of Bits:** 8 (Octal)
- **Latch Type:** D-Type Transparent Latch
- **Supply Voltage Range:** 4.5V to 5.5V
- **High-Level Input Voltage (VIH):** 2.0V (min)
- **Low-Level Input Voltage (VIL):** 0.8V (max)
- **High-Level Output Voltage (VOH):** 4.4V (min) @ IOH = -4mA
- **Low-Level Output Voltage (VOL):** 0.55V (max) @ IOL = 4mA
- **Propagation Delay Time (tpd):** 10ns (max) @ VCC = 5V, CL = 50pF
- **Operating Temperature Range:** -40°C to +85°C
- **Package Type:** TSSOP-20
### **Descriptions:**
- The TC74VHCT573AFK is an octal transparent latch with 3-state outputs designed for bus interface applications.
- It features a latch enable (LE) input and an output enable (OE) input for controlling data flow.
- Compatible with TTL levels, making it suitable for interfacing with 5V systems.
- Provides high-speed operation while maintaining low power consumption.
### **Features:**
- **High-Speed Operation:** Optimized for performance in bus-oriented systems.
- **3-State Outputs:** Allows connection to a common bus.
- **TTL-Compatible Inputs:** Ensures seamless interfacing with TTL logic.
- **Low Power Consumption:** Ideal for battery-operated devices.
- **Latch Function:** Data is retained when the latch enable (LE) is low.
- **Output Drive Capability:** Supports bus line driving applications.
This information is based on Toshiba's official documentation for the TC74VHCT573AFK. For detailed electrical characteristics and timing diagrams, refer to the datasheet.
