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SL28EB742 Datasheet(PDF) 2 Page - Silicon Laboratories |
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SL28EB742 Datasheet(HTML) 2 Page - Silicon Laboratories |
2 / 43 page SL28EB742 2 Rev. 1.0 Description The SL28EB742 is a high-performance clock generator supporting Intel Cedarview platforms. The SL28EB742 is rated to support extended grade temperature. Utilizing an inexpensive 14.318 MHz crystal, it is capable of supporting multiple frequencies from four PLLs. The CPU clock can support a frequency range from 83.33 to 166 MHz by configuration of two strap pins. With a combination of strap pins and an I2C interface, the device allows maximum configurability. EProClock® is the world’s first non-volatile programmable clock. The EProClock® technology allows board designer to promptly achieve optimum compliance and clock signal integrity; historically, attainable typically through device and/or board redesigns. EProClock® technology can be configured through SMBus or hard coded. Functional Block Diagram Crystal/ CLKIN PLL 1 (SSC) OTP Logic Core VR PLL 4 (non-SSC) PLL 3 (non-SSC) Divider Divider Divider SCLK SDATA REF [1:0] CPU PCI CLKPWRGD/ PD# CPU_STP# FS [ C:A] XIN XOUT 48M PLL 2 (non-SSC) Divider SRC SATA / SRC0 DOT96 12 / 48M 25M PCI/SRC_STP# CLKREQ[3:1] ITP_EN SEL_SATA SEL_12_48 |
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