CD54HC161 Datasheet | Texas Instruments

The CD54HCT161 is obsolete and no longer is supplied. Data sheet acquired from Harris Semiconductor SCHS154D February 1998 - Revised October 2003 CD54/74HC161, CD54/74HCT161, CD54/74HC163, CD54/74HCT163 High-Speed CMOS Logic Presettable Counters [ /Title (CD74 HC161 , CD74 HCT16 1, CD74 HC163 , CD74 HCT16 3) /Subject (High Speed CMOS Logic Presettable Counte rs) /Autho r () /Keywords (High Speed CMOS Logic Presettable Counte rs, High Speed Features - ’HC161, ’HCT161 4-Bit Binary Counter, Asynchronous Reset - ’HC163, ’HCT163 4-Bit Binary Counter, Synchronous Reset - Synchronous Counting and Loading - Two Count Enable Inputs for n-Bit Cascading - Look-Ahead Carry for High-Speed Counting - Fanout (Over Temperature Range) - Standard Outputs - - - 10 LSTTL Loads - Bus Driver Outputs - - . . . 15 LSTTL Loads - Wide Operating Temperature Range . . . -55o C to 125o C - Balanced Propagation Delay and Transition Times - Significant Power Reduction pared to LSTTL Logic ICs - HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V - HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic patibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input patibility, Il ≤ 1µA at VOL, VOH Description...