HD74LS161

The HD74LS161 features an internal carry look-ahead for application in high speed counting designs.Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs changes coincident with each other when so instructed by the countable inputs and internal geting.

The electrical specifications of the HD74LS161 can be summarized as:(1): input voltage(Vin) is 2.0 V min; (2): output voltage(Vout) is 2.7 V mi when Vcc is 4.75 V, Vin is 2 V and Ion is -400 uA; (3): short-circuit output current(Ins) is -20 mA min and -100 mA max when Vcc is 5.25 V; (4): supply current(Iccs) is 18 mA typ and 31 mA max when Vcc is 5.25 V; (5): input clamp voltage(VIR) is -1.5 V max when Vcc is 4.75 V and Iin is -18 mA.

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