SN54LS190 - Motorola Inc

SN54LS190 PRESETTABLE BCD/DECADE UP/DOWN COUNTER

The LS190 is a synchronous Up / Down BCD Decade Counter and the LS191 is a synchronous Up / Down 4-Bit Binary Counter. The operating modes of the LS190 decade counter and the LS191 binary counter are identical, with the only difference being the count sequences as noted in the state diagrams. Each circuit contains four master / slave flip-flops, with interna.

Features

INARY UP/ DOWN COUNTERS LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 620-09 16 1
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• Low Power . . . 90 mW Typical Dissipation High Speed . . . 25 MHz Typical Count Frequency Synchronous Counting Asynchronous Parallel Load Individual Preset Inputs Count Enable and Up/ Down Control Inputs Cascadable Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) V CC 16 P 0 15 CP 14 RC 13 TC 12 PL 11 P 2 10 P 3 9 16 1 N SUFFIX PLASTIC CASE 648-08 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION NOTE: The Flatpak version has the same pinouts (Connect.