54F194
Shift Register Single 4-Bit Serial/Parallel to Parallel 20-Pin CLLCC
16-Bit Parallel In Parallel Out Shift Register, 5V, 90MHz, 16-Pin R-GDFP-F16
F/FAST SERIES, 4-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, CDIP16, DIP-16