CD40192B

The CD40192B Presettable BCD up/Down counter consists of 4 sunchronously clocked,gated "D" type flip-flops connected as a counter.The inputs consist of 4 individual jam lines.

Features of of the CD40192B are:(1)individual clock lines for counting up or down ; (2)synchronous high-speed carry and borrow propagation delays for cascading; (3)asynchronous reset ans preset capability; (4)5 V , 10 V and 15 V parametric ratings; (5)maximum input current of 1 uA at 18 V over full package-temperature range;100 nA at 18 V and 25.

The absolute maximum ratings of the CD40192B can be summarized as:(1): DC supply-voltage range(VDD) is -0.5 V to +20 V(voltages referenced to Vss terminal); (2): input voltage range, all inputs is -0.5 V to VDD+0.5 V; (3): DC input current, any one input is ±10 mA; (4): operating temperature range(Ta) is -55 to +125; (5): storage temperature range(Tstg) is -65 to +150.