Datasheet Details
| Part number | CD74HC190 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 1.29 MB |
| Description | Synchronous Up/Down Counters |
| Download | CD74HC190 Download (PDF) |
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| Part number | CD74HC190 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 1.29 MB |
| Description | Synchronous Up/Down Counters |
| Download | CD74HC190 Download (PDF) |
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/ordering information The CD54/74HC190 are asynchronously presettable BCD decade counters, whereas the CD54/74HC191 and CD54/74HCT191 are asynchronously presettable binary counters.
Presetting the counter to the number on preset data inputs (A−D) is accomplished by a low asynchronous parallel load (LOAD) input.
Counting occurs when LOAD is high, count enable (CTEN) is low, and the down/up (D/U) input is either high for down counting or low for up counting.
CD54HC190, CD74HC190 CD54HC191, CD74HC191, CD54HCT191, CD74HCT191 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL SCHS275E − MARCH 2002 − REVISED OCTOBER 2003 D 2-V to 6-V VCC Operation (’HC190, 191) D 4.5-V to 5.5-V VCC Operation (’HCT191) D Wide Operating Temperature Range of −55°C to 125°C D Synchronous Counting and Asynchronous Loading D Two Outputs for n-Bit Cascading D Look-Ahead Carry for High-Speed Counting D Balanced Propagation Delays and Transition Times D Standard Outputs Drive Up To 15 LS-TTL Loads D Significant Power Reduction Compared to LS-TTL Logic ICs CD54HC190, 191; CD54HCT191 .
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| Part Number | Description |
|---|---|
| CD74HC191 | Synchronous Up/Down Counters |
| CD74HC192 | Presettable Synchronous 4-Bit Up/Down Counters |
| CD74HC193 | Presettable Synchronous 4-Bit Up/Down Counters |
| CD74HC194 | 4-Bit Bidirectional Universal Shift Register |
| CD74HC195 | 4-Bit Parallel Access Register |
| CD74HC10 | Triple 3-Input NAND Gates |
| CD74HC107 | Dual J-K Flip-Flop |
| CD74HC109 | Dual J-K Flip-Flop |
| CD74HC10E | Triple 3-Input NAND Gates |
| CD74HC10M | Triple 3-Input NAND Gates |