The TC74AC573FT is an Octal D-Type Latch with 3-State Outputs manufactured by Toshiba Semiconductor and Storage. As a part of the Advanced CMOS (AC) logic family, it is known for its high speed and low power consumption. The device comprises eight D-type latches and is used to store data temporarily. The 'FT' suffix usually indicates a specific package or temperature grade. The 3-state outputs allow the device to be connected to a bus, enabling multiple devices to share the same lines without contention.
Applications:
- Data bus interfacing
- Memory address latching
- I/O port latching
- Microprocessor systems
- Data storage and retrieval
Features:
- High-speed operation: tpd = 7.5 ns (typ.) at VCC = 5 V
- Low power consumption: ICC = 8 μA (max.) at VCC = 5 V
- Octal D-type latch configuration
- 3-State outputs for bus interfacing
- Transparent latch operation
- Wide operating voltage range: VCC = 2 V to 6 V
- Operating temperature range: -40°C to 85°C (Assumed, verify datasheet for 'FT' variant)
Benefits:
- Temporary Data Storage: Provides reliable temporary storage for data in digital systems.
- Efficient Bus Interfacing: 3-State outputs simplify the design of bus-oriented systems by preventing signal contention.
- High-Speed Performance: Enables rapid data transfer and processing.
- Reduced Power Consumption: Low power consumption makes it ideal for battery-powered and energy-sensitive applications.
- Versatile Application: Suitable for a wide range of data latching and buffering applications.
Additional Details:
The TC74AC573FT typically comes in a surface-mount package, like SOIC or TSSOP, for efficient PCB assembly. The latch is transparent when the Latch Enable (LE) input is high, allowing data to pass through from the D inputs to the Q outputs. When the LE input goes low, the data present at the D inputs is latched and held at the Q outputs. The 3-state outputs are controlled by an Output Enable (OE) input. When OE is low, the outputs are enabled; when OE is high, the outputs are disabled and enter a high-impedance state. For precise package details and operating temperature specifics, consult the TC74AC573FT datasheet.