Description:The 932SQ420 is an Intel CK420BQ main clock synthesizer for Romley-generation and newer Intel-based server platforms. The 932SQ420 is driven with a 25 MHz crystal for maximum performance. It generates CPU outputs of 100 or 133.33 MHz.
Renesas provides a recommended PCB layout guide in their application note (R01AN4331EJ0100) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
Renesas recommends a specific power sequencing scheme in their datasheet, which involves powering up the VCC and VDD pins in a specific order. Additionally, they provide a power sequencing diagram in their application note (R01AN4331EJ0100).
Renesas recommends using high-frequency, low-ESR capacitors (e.g., 100nF, 1uF, and 10uF) with a voltage rating of 2.5V or higher, placed as close as possible to the VCC and VDD pins.
Renesas provides a JTAG interface specification in their datasheet, which includes information on pinouts, signal levels, and protocol. Additionally, they recommend using a JTAG adapter or a boundary scan tool for production testing.
The thermal resistance values for the 932SQ420DGLF package are not explicitly stated in the datasheet. However, Renesas provides a thermal model in their application note (R01AN4331EJ0100) which includes thermal resistance values for the package.
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932SQ420DGLF Overview
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