CD40193BC

Wide supply voltage range: 3V to 15V
High noise immunity: 0.45 V_DD (typ.)
 Low power TTL compatibility: 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: MM74C192 and MM74C193

DC Supply Voltage (V_DD) .............................-0.5 to +18 VDC
Input Voltage (V_IN) .............................-0.5 to VDD +0.5 VDC
Storage Temperature Range (T_S) ..............-65°C to +150°C
Power Dissipation (P_D) Dual-In-Line ........................700 mW
Small Outline ...........................................................500 mW
Lead Temperature (T_L) (Soldering, 10 seconds) ........260°C

The CD40192BC and CD40193BC up/down counters are monolithic complementary MOS (CMOS) integrated circuits. The CD40192BC is a BCD counter, while the CD40193BC is a binary counter.

Counting up and counting down is performed by two count inputs, one being held HIGH while the other is clocked. The CD40193BC outputs change on the positive-going transition of this clock.

These CD40193BC counters feature preset inputs that are enabled when load is a logical "0" and a clear which forces all outputs to "0" when CD40193BCit 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 V_DD and V_SS.