SN64BCT373

This 8-bit latch features 3-state outputs of SN64BCT373 designed specifically for driving highly capacitive or relatively low-impedance loads. SN64BCT373 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the SN64BCT373 are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When the enable is taken low, the Q outputs of SN64BCT373 are latched at the levels that were set up at the D inputs.

A buffered output-enable (OE) input of SN64BCT373 can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state the outputs of SN64BCT373 neither load nor drive the bus lines significantly. The high-impedance impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

The output-enable (OE) does not affect the internal operations of the latches. Old data of SN64BCT373 can be retained or new data can be entered while the outputs are off.

The outputs of SN64BCT373 are in a high-impedance state during power up and power down while the supply voltage is less than approximately 3 V.

The SN64BCT373 is characterized for operation from 40°C to 85°C and 0°C to 70°C.