CD74FCT843A
description
M PACKAGE (TOP VIEW)
OE 1 1D 2 2D 3 3D 4 4D 5 5D 6 6D 7 7D 8 8D 9 9D 10 CLR 11 GND 12
24 VCC 23 1Q 22 2Q 21 3Q 20 4Q 19 5Q 18 6Q 17 7Q 16 8Q 15 9Q 14 PRE 13 LE
The CD74FCT843A is a 9-bit, bus-interface, D-type latch with 3-state outputs, designed specifically for driving highly capacitive or relatively low-impedance loads. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The device uses a small-geometry Bi CMOS technology. The output stage is a bination of bipolar and CMOS transistors that limits the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCC bounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 48 m A.
The CD74FCT843A outputs are...
