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Description

The FS6370 is a CMOS clock generator IC designed to minimize cost and component count in a variety of electronic systems. Three EEPROM-programmable phase-locked loops (PLLs) driving four programmable muxes and post dividers provide a high degree of flexibility.

An internal EEPROM permits just-in-time factory programming of devices for end user requirements.

Features

? Just-in-time customization of clock frequencies via internal non-volatile 128-bit serial EEPROM

? I2C?-bus serial interface

? Three on-chip PLLs with programmable reference and feedback dividers

? Four independently programmable muxes and post dividers

? Programmable power-down of all PLLs and output clock drivers

? Tristate outputs for board testing

? One PLL and two mux/post-divider combinations can be modified via SEL_CD input

? 5 V to 3.3 V operation

? Accepts 5 MHz to 27 MHz crystal resonators