1. General Description
The F75121 is the dynamic voltage ID controller chip to provide the advanced CPU voltage
programming when over clocking. F75121 supports the dynamic VID spec. for new generation
Intel CPU and also compatible to VRM10.0/VRM9.X spec.. Auto sensing CPU replacement and
setting watch dog timer for OS idling protection. Besides of VID controlling function, F75121
also supports pure 8 GPIO pins. Level or pulse modes can be programmed by registers. With
2 sets of watchdog timer, F75121 provides more flexible control for PC system, and there are
four kinds of pulse width of the time out alert output pin can be selected.
2. Features
Supporting new generation Intel dynamic Processor VID input /output
Compatible VRM 9.X and VRM10.0
Auto detecting the CPU replacement
Pure 8 GPIO pins
Two sets of Watch dog timer to protect system from hanging when over-clocking
SMbus interface
Package in 28-SSOP (150mil)
- 4 -
July, 2007
V0.24P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
