These dual 4-bit D-type latches feature 3-state outputs designed specifically for bus driving. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The dual 4-bit latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs in true form, according to the function table. When LE is low, the outputs are latched. When the clear () input goes low, the Q outputs go low independently of LE. The outputs are in the high-impedance state when the output-enable () input is at a high logic level.
The SN54ALS873B and SN54AS873A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS873B and SN74AS873A are characterized for operation from 0°C to 70°C.
Status | ACTIVE |
SubFamily | D-type latch |
Technology Family | ALS |
VCC | 5.5 |
Bits | 8 |
Voltage | 5 |
F @ nom voltage | 75 |
ICC @ nom voltage | 31 |
tpd @ Nom Voltage | 14 |
3-state output | Yes |
Rating | Military |
Operating temperature range | -55 to 125 |
Package Group | CDIP|24 |
Package size: mm2:W x L (PKG) | See datasheet (CDIP) |
Approx. price |