SN74HC373PWR

The SN74HC373PWR from Texas Instruments is an octal transparent D-type latch designed for applications requiring high-current 3-state outputs. These latches are particularly useful for driving capacitive or low-impedance loads, making them suitable for buffer registers, I/O ports, and bidirectional bus drivers.

This device features a wide operating voltage range from 2V to 6V, with a low power consumption of 80 µA maximum ICC. The typical propagation delay is 13 ns, and it offers ±6 mA output drive at 5V. The low input current of 1 µA maximum ensures efficient operation. The eight latches are transparent D-type, meaning the Q outputs follow the D inputs while the latch-enable (LE) input is high. When LE goes low, the Q outputs are latched at the levels present at the D inputs.

The SN74HC373PWR comes in a 20-TSSOP package, designed for surface mounting. Its operating temperature range is -40°C to 85°C, making it suitable for a variety of environmental conditions. The 3-state outputs are crucial for bus-oriented systems where multiple devices share a common data line.

Key specifications include an 8:8 circuit configuration, a single independent circuit, and a D-type transparent latch logic type. The Tri-State output capability is a defining feature for its application in shared data bus environments.