Datasheet 74LS190 Equivalent ( PDF )

19.20 20.00 Max 16 9 7.40 Max 6.30 Unit: mm 1 1.3 1.11 Max 8 0.51 Min 2.54 Min 5.06 Max 7.62 2.54 ± 0.25 0.48 ± 0.10 0.25 0.05 0° 15° Hitachi Code JEDEC EIAJ Weight (reference value) + 0.13 DP-16 Conforms Conforms 1.07 g Unit: mm 10.06 10.5 Max 16 9 5.5 1 *0.22 ± 0.05 0.20 ± 0.04 8 0.80 Max 2.20 Max 0.20 7.80 + 0.30 1.15 0° 8° 0.70 ± 0.20 1.27 *0.42 ± 0.08 0.40 ± 0

PRESETTABLE BCD, DECADE UP, DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP, DOWN COUNTERS The SN54 , 74LS190 is a synchronous UP, DOWN BCD Decade (8421) Counter and the SN54, 74LS191 is a synchronous UP , DOWN Modulo-16 Binary Counter. State changes of the counters are synchronous with the LOW-to-HIGH transition of the Clock Pulse input. An asynchronous Parallel Load (PL) input overrides counting a