FS6370-01G-XTD

Clock Generators, PLLs, Frequency Synthesizers Overview

The FS6370-01G-XTD is an EEPROM programmable 3-PLL clock generator IC manufactured by onsemi. It features three phase-locked loops and four programmable muxes with post dividers, enabling precise frequency customization via a 128-bit serial EEPROM. The device operates within a 3.3 V to 5 V supply range and accepts crystal resonators from 5 MHz to 27 MHz. Key electrical parameters include a maximum output current of 0.1 A per driver and a switching frequency determined by the programmed PLLs. It utilizes an I²C-bus interface for programming and includes tristate outputs for board testing.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three on-chip PLLs with programmable reference and feedback dividers
• Internal 128-bit serial EEPROM for just-in-time factory programming
• Four independently programmable muxes and post dividers
• SEL_CD input allows modification of one PLL and two mux/post-divider combinations without reprogramming

Clock Generators, PLLs, Frequency Synthesizers Applications

• Electronic systems requiring minimized component count
• Clock generation for digital circuits
• Board testing applications utilizing tristate outputs

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix -01G-XTD against official documentation to confirm package type and temperature grade. Ensure the ordering information matches the required voltage range and crystal frequency specifications before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when flexible clock frequencies are needed without external memory. The internal EEPROM eliminates the need for separate configuration chips. Verify that the system supports the I²C interface for initial programming or utilizes the SEL_CD pin for dynamic frequency changes.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The FS6370 belongs to a family of programmable clock generators. It serves as a migration path from fixed-frequency ROM-based devices or register-based models like the FS6377. The EEPROM feature allows for cost reduction in high-volume production by hardcoding configurations.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The FS6377 is a compatible register-based alternative if I²C programming overhead can be supported. For fixed-frequency requirements, a ROM-based device offers significant cost savings. Board layout compatibility should be reviewed during migration.