Texas Instruments CD54HC297
The ’HC297 and CD74HCT297 are high-speed silicon gate CMOS devices that are pin-compatible with low power Schottky TTL (LSTTL). These devices are designed to provide a simple, cost-effective solution to high-accuracy, digital, phase-locked-loop applications.| Part No. | CD54HC297 |
|---|---|
| Datasheet | CD54HC297 Download |
| Manufacturer |  Texas Instruments |
| Description | Digital Phase-Locked Loop |
| Buy | Stock & Price |
FEATURES
DESCRIPTION
● Digital Design Avoids Analog Compensation Errors● Easily Cascadable for Higher Order Loops
● Useful Frequency Range - K-Clock . . . . . . . . . . . . . . . . . . . . . . . . . .DC to 55MHz (Typ) - I/D-Clock . . . . . . . . . . . . . . . . . . . . DC to 35MHz (Typ)
● Dynamically Variable Bandwidth
● Very Narrow Bandwidth Attainable
● Power-On Reset
● Output Capability - Standard . . . . . . . . . . . . . . . . . . . . XORPDOUT, ECPDOUT - Bus Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I/DOUT
● Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
● Balanced Propagation Delay and Transition Times
● Significant Power Reduction Compared to LSTTL Logic ICs
● ’HC297 Types - Operation Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 to 6V - High Noise Immunity NIL = 30%, NIH = 30% of VCC at 5V
● CD74HCT297 Types - Operation Voltage . . . . . . . . . . . . . . . . . . . . . . . .
