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Counter ICs Hi Sp CMOS Synch BCD Decade Up/Down
- Manufacturer :
- Texas Instruments, Inc
- Package/Case :
- TSSOP-16
- Product Categories :
- Counter ICs
- Datasheet:
- CD74HC192PWTG4 PDF
- RoHs Status:
- Rohs
- In-stock:
- 200
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CD74HC192PWTG4 Product Details
The ’HC192, ’HC193 and ’HCT193 are asynchronously presettable BCD Decade and Binary Up/Down synchronous counters, respectively.
Presetting the counter to the number on the preset data inputs (P0-P3) is accomplished by a LOW asynchronous parallel load input (PL)\. The counter is incremented on the low-to-high transition of the Clock-Up input (and a high level on the Clock-Down input) and decremented on the low to high transition of the Clock-Down input (and a high level on the Clock-up input). A high level on the MR input overrides any other input to clear the counter to its zero state. The Terminal Count up (carry) goes low half a clock period before the zero count is reached and returns to a high level at the zero count. The Terminal Count Down (borrow) in the count down mode likewise goes low half a clock period before the maximum count (9 in the 192 and 15 in the 193) and returns to high at the maximum count. Cascading is effected by connecting the carry and borrow outputs of a less significant counter to the Clock-Up and CLock-Down inputs, respectively, of the next most significant counter.
If a decade counter is present to an illegal state or assumes an illegal state when power is applied, it will return to the normal sequence in one count as shown in state diagram.
Feature
- Synchronous Counting and Asynchronous Loading
- Two Outputs 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 . . . –55°C to 125°C
- 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, Il1μA at VOL, VOH
Technical Parameters
| Counter Type | Decade Counters | Package / Case | TSSOP-16 |
|---|---|---|---|
| Logic Family | CMOS | Packaging | Reel |
| Counting Method | Synchronous | Mounting Style | SMD/SMT |
| Counting Sequence | Up/Down | Factory Pack Quantity | 250 |
CD74HC192PWTG4 Documents
-
CD74HC192 Family Datasheet
CD74HC192PWTG4 Related Products
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