Synchronous 4-Bit Up/Down Decade Counter
CD40192BM CD40192BC Synchronous 4-Bit Up Down Decade Counter CD40193BM CD40193BC Synchronous 4-Bit Up Down Binary Counte...
Description
CD40192BM CD40192BC Synchronous 4-Bit Up Down Decade Counter CD40193BM CD40193BC Synchronous 4-Bit Up Down Binary Counter
February 1988
CD40192BM CD40192BC Synchronous 4-Bit Up Down Decade Counter CD40193BM CD40193BC Synchronous 4-Bit Up Down Binary Counter
General Description
These up down counters are monolithic complementary MOS (CMOS) integrated circuits The CD40192BM and CD40192BC are BCD counters while the CD40193BM and CD40193BC are binary counters Counting up and counting down is performed by two count inputs one being held high while the other is clocked The outputs change on the positive-going transition of this clock These counters feature preset inputs that are enabled when load is a logical ‘‘0’’ and a clear which forces all outputs to ‘‘0’’ when it is at logical ‘‘1’’ The counters also have carry and borrow outputs so that they can be cascaded using no external circuitry All inputs are protected against damage due to static discharge by clamps to VDD and VSS
Features
Y Y Y
Wide supply voltage range High noise immunity Low power TTL compatibility
Y
Y Y
3V to 15V 0 45 VDD (typ ) Fan out of 2 driving 74L or 1 driving 74LS Carry and borrow outputs for easy expansion to N-bit by cascading Asynchronous clear Equivalent to MM54C192 MM74C192 and MM54C193 MM74C193
Connection Diagram
Dual-In-Line Package
Order Number CD40192B or CD40193
TL F 5988 – 1
Top View
Cascading Packages
TL F 5988 – 2
C1995 National Semiconductor Corporation
TL F 5988
RRD-B30M105 Pr...
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