GENERAL DESCRIPTION
The 74HC/HCT297 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT297 are designed to provide a simple, cost-effective solution to high-accuracy, digital,
phase-locked-loop applications. These devices contain all the necessary circuits, with the exception of the divide-by-n counter, to build first order phase-locked-loops.

FEATURES
• Digital design avoids analog compensation errors
• Easily cascadable for higher order loops
• Useful frequency range:
– DC to 55 MHz typical (K-clock)
– DC to 35 MHz typical (I/D-clock)
• Dynamically variable bandwidth
• Very narrow bandwidth attainable
• Power-on reset
• Output capability: standard/bus driver
• ICC category: MSI