©2008 SCILLC. All rights reserved.

Publication Order Number:

May 2008 – Rev. 3

FS6370/D

FS6370

EEPROM Programmable 3-PLL Clock Generator IC

1.0 Features

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

• 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

2.0 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.

Figure 1: Pin Configuration