SN74ALS990N

TEXAS INSTRUMENTS  SN74ALS990N  逻辑芯片, 8位D型透明读回锁存器, 20PDIP

description

This 8-bit latch is designed specifically for storing the contents of the input data bus and providing the capability of reading back the stored data onto the input data bus.

The eight latches are transparent D-type latches. While the latch-enable LE input is high, the Q outputs follow the data D inputs.

• 3-State I/O-Type Read-Back Inputs

• Bus-Structured Pinout

• True Logic Outputs

• Package Options Include Plastic Small-Outline DW Packages and Standard Plastic N 300-mil DIPs