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T O S HI BA
LOfilC/MEMQRY
14E p | .,017248 OQlSlSa 3 |
TC74HC190P/F
------------------------ TC74HC191P/F
'T - y S - Z .3 -D°\
TC74HC190P/F BCD UP/DOWN COUNTER
TC74HC191P/F 4-BIT BINARY