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10 pcs
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10 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The CD74HCT191E from RCA is a high-speed CMOS logic integrated circuit functioning as a presettable, synchronous 4-bit binary up/down counter. This device is designed for versatility, allowing for both up and down counting controlled by the D/U input. Asynchronous parallel loading is achieved via the LOAD\ input, enabling quick preset of the counter to a desired value.
Key electrical characteristics include a VCC operating range of 4.5V to 5.5V, suitable for many digital systems. The counter boasts a wide operating temperature range from -55°C to 125°C, making it robust for various environmental conditions. It offers two outputs for n-bit cascading, facilitating the creation of larger counters for more complex applications. The standard outputs can drive up to 15 LS-TTL loads, providing good drive capability.
Packaged in a 16-pin PDIP (N) format, the CD74HCT191E is typically supplied in TUBE packaging with a standard quantity of 25 units. Its synchronous counting and asynchronous loading features, along with look-ahead carry capabilities, make it suitable for high-speed counting applications where precise control and performance are required.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.50 | $0.50 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The CD74HCT191E operates at 4.5V to 5.5V.
The operating temperature range for the CD74HCT191E is -55°C to 125°C.
The CD74HCT191E is a 4-bit synchronous binary up/down counter.
The CD74HCT191E is supplied in a PDIP (N) package.