PCK2022R Datasheet | NXP Semiconductors

FEATURES - 3.3 V operation - Eight differential CPU clock pairs - One IO clock at 33 MHz and 66 MHz - Two 48 MHz clocks at 3.3 V - One 14.318 MHz reference clock - Power management control pins - Host clock jitter less than 200 ps cycle-to-cycle - Host clock skew less than 150 ps pin-to-pin - Spread Spectrum capability DESCRIPTION The PCK2022R is a clock synthesizer/driver for a Pentium III™ and other similar processors The PCK2022R has eight differential pair CPU current source outputs, one 33/66 MHz output which is configurable on power-up, two 48 MHz clocks which can be disabled on power-up, and one 3.3 V reference clock at 14.318 MHz which can also be disabled on power-up. All clock outputs meet Intel’s drive strength, rise/fall times, jitter, accuracy, and skew requirements. The part possesses a dedicated power-down input pin for power management control. This input is synchronized on chip, and ensures glitch-free output transitions. In addition, the part can be configured to disable the 48 MHz outputs for lower power operation and an increase in the performance of the functioning outputs. The IOCLK and REFCLK can also be disabled for the highest performance of the Host outputs. PIN CONFIGURATION IOCLK VDD 48M_0/SELA 48M_1/SELB VSS VDD HCLK0 HCLKB0 VSS 1 2 3 4 5 6 7 8 9 48 SEL100/133 47 VSS 46 VDDA 45 VSSA 44 PWRDWN 43 VDD 42 HCLK4 41 HCLKB4 40 VSS 39 HCLK5 38 HCLKB5 37 VDD 36 HCLK6 35 HCLKB6 34 VSS 33 HCLK7 32 HCLKB7 31 VDD 30 MULTSEL0 29 MULTSEL1 28 VSS 27 VSSA 26 IREF 25 VDDA HCLK1 10 HCLKB1 11 VDD 12 HCLK2 13 HCLKB2 14 VSS 15 HCLK3 16 HCLKB3 17 VDD 18 REFCLK/SELC 19 SPREAD 20 VSS 21 XIN 22 XOUT 23 VDD 24 SW00665 ORDERING INFORMATION PACKAGES 48-Pin Plastic TSSOP TEMPERATURE RANGE 0°C to +70°C ORDER CODE PCK2022R DGG DRAWING NUMBER SOT362-1 Intel and Pentium III are trademarks of Intel Corporation. 2000 Nov 13 853- 2225 25005 Philips Semiconductors Product specification CK00 (100/133 MHz) spread spectrum differential system clock...