Texas Instruments CD54HC161
The CD54HCT161 is obsolete and no longer is supplied.| Part No. | CD54HC161 |
|---|---|
| Datasheet | CD54HC161 Download |
| Manufacturer |  Texas Instruments |
| Description | High-Speed CMOS Logic Presettable Counters |
| Buy | Stock & Price |
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 . . . -55oC to 125oC
● Balanced Propagation Delay and Transition Times
● Significant Power Reduction Compared 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 Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
DESCRIPTION
Two count enables, PE and TE, in each counter are provided for n-bit cascading. In all counters reset action occurs regardless of the level of the SPE, PE and TE inputs (and the clock input, CP, in the ’HC161 and ’HCT161 types).
