The 74377 chip (common variants 74LS377, 74HC377) is an octal D flip-flop, used as a latch in mappers like Color Dreams and stores eight bits of data.
If only four or less bits are needed, a 74161 may be used instead.
See also: 74161 Latch Implementation
.--\/--.
/WE -| 1 20|- Vcc
Q0 -| 2 19|- Q7
D0 -| 3 18|- D7
D1 -| 4 17|- D6
Q1 -| 5 16|- Q6
Q2 -| 6 15|- Q5
D2 -| 7 14|- D5
D3 -| 8 13|- D4
Q3 -| 9 12|- Q4
GND -|10 11|- CLK
`------'
D0-7 are copied to Q0-7 when CLK rises (0 to 1) while /WE is low.
Categories: 7400 series