CY28378 Datasheet | Cypress

FTG for Pentium 4® and Intel® 845 Series Chipset Features - patible with Intel® CK-Titan and CK-408 Clock Synthesizer/Driver specifications - System frequency synthesizer for Intel Brookdale 845 and Brookdale - G Pentium 4® chipsets - Programmable clock output frequency with less than 1-MHz increment - Integrated fail-safe Watchdog timer for system recovery - Automatically switch to HW selected or SW programmed clock frequency when Watchdog timer time-out - Programmable 3V66 and PCI output frequency mode - Capable of generating system RESET after a Watchdog timer time-out or a change in output frequency via SMBus interface occurs - Support SMBus byte read/write and block read/ write operations to simplify system BIOS development - Vendor ID and Revision ID support - Programmable drive strength support - Programmable output skew support - Power management control inputs - Available in 48-pin SSOP Table 1. Frequency Table CPU x3 3V66 x4 PCI x 10 REF x2 48M x1 24_48M x1 Block Diagram X1 X2 Pin Configuration[1] VDD_REF REF0:1 XTAL OSC PLL 1 PLL Ref Freq Divider Network VDD_CPU - MULTSEL1/REF1 CPUT[0:1], CPUC[0:1], VDD_REF CPU_ITP, CPU_ITP# - FS0:4 VTT_PWRGD# - MULTSEL0:1 PLL2 Fract....