Texas Instruments SN54F373 Octal Transparent D-type Latches With 3-State Outputs SN54F373J

The SN54F373J is an octal transparent D-type latch with 3-state outputs, designed for driving capacitive or low-impedance loads. It features eight latches that operate in a transparent mode while the latch-enable (LE) input is high, allowing the Q outputs to follow the D inputs. When LE is low, the outputs are latched at the last input state. The device includes a buffered output-enable (OE) input, which can place the outputs in a high-impedance state, enabling multiple devices to share the same bus without interference. This latch is characterized for operation over a military temperature range of -55¬8C to 125¬8C, making it suitable for harsh environments. The SN54F373J is available in a 20-pin ceramic dual in-line package (CDIP), and it supports full parallel access for loading data. It is particularly useful for applications such as buffer registers, I/O ports, and bidirectional bus drivers. The device's specifications include a supply voltage range of 4.5V to 5.5V and a maximum output current of 40 mA.