Freescale P10XX and P20XX System Clock 6V49205B with Selectable DDR Frequency DATASHEET Description Typical Applications The 6V49205B is a main clock for Freescale P10xx and System Clock for Freescale P10xx and P20xx-based designs P20xx-based systems. It has a selectable System CCB clock Features and 2 DDRCLK speeds 100M or 66.66M. The 6V49205B also provides LP-HCSL PCIe outputs for low-power and Replaces 11 crystals, 2 oscillators and 3 clock generators reduced board space. lowers cost, power and area Integrated terminations on LP-HCSL PCIe outputs Output Features 2 eliminate 24 resistors, saving 41mm of board area 1 Sys CCB 3.3V LVCMOS output at 100M/83.33M/ Industrial temperature range operation supports 80M/66.66M demanding environmental conditions 1 1 DDRCLK 3.3V LVCMOS output at 100M or 66.66M Advanced 3.3V CMOS process high-performance, 1 125M 3.3V LVCMOS output low-power 6 LP-HCSL PCIe pairs selectable at 100M or 125M Supports independent spread spectrum on 6 25MHz 3.3V LVCMOS outputs Sys CCB/DDRCLK and PCIe outputs 2 2.048M 3.3V LVCMOS outputs Available in space-saving 7 x 7 mm 48-VFQFPN with 0.5mm pad pitch reduced board space without the need for 2 USB 3.3V LVCMOS outputs at 12M or 24M fine-pitch assembly techniques Key Specifications PCIe Gen1-2-3 compliant < 3p rms phase noise on REF outputs Block Diagram Sys CCB PLL1 SCLK (SS) DDRCLK SDATA Control FS0 FS1 Logic 100MHz SEL100 66 PLL4 PCIe L(5:0) SELPCIE125 100 (SS) PLL3 USB CLK(2:1) (non- X1 2.048M(1:0) SS) 25MHz Crystal Crystal Oscillator PLL2 125M (non- X2 SS) REF(5:0) GND Note 1: For DDR Clock: Processor core and I/O supply rails must be ramped with VDD3P3 or earlier. Clock signal will be clamped LOW and output clock will be 100MHz if this is not followed (see diagram below). VDD3P3 R40 10K DDRCLK R39 10K 6V49205B MAY 5, 2017 1 2017 Integrated Device Technology, Inc.6V49205B DATASHEET Pin Assignments X2 25 1 48 VDDREF X1 25 2 47 SDATA GNDREF 3 46 SCLK REF5 4 45 GndDDR REF4 5 44 SEL100 66/DDRCLK REF3 6 43 VddDDR VDDREF 7 42 AVDDSYS GNDREF 8 41 Sys CCB REF2 9 40 GNDSYS REF1 10 39 GNDPCIe SELPCIE125 100/REF0 11 38 PCIeT LR5 AVDD12 24 12 37 PCIeC LR5 FS0/USB CLK1 13 36 PCIeT LR4 FS1/USB CLK2 14 35 PCIeC LR4 GND12 24 15 34 GNDPCIe GND2.048 16 33 AVDDPCIe CK2.048 0 17 32 PCIeT LR3 CK2.048 1 18 31 PCIeC LR3 VDD2.048 19 30 PCIeT LR2 AVDD125 20 29 PCIeC LR2 125M 21 28 GNDPCIe GND125M 22 27 VDDPCIe PCIeT LR023 26PCIeT LR1 PCIeC LR024 25PCIeC LR1 48-Pin TSSOP Indicates Internal 100kohm pull up resistor 48 47 46 45 44 43 42 41 40 39 38 37 X2 25 1 36 PCIeT LR4 X1 25 2 35 PCIeC LR4 GNDREF 3 34 GNDPCIe REF5 4 33 AVDDPCIe REF4 5 32 PCIeT LR3 REF3 6 31 PCIeC LR3 6V49205B VDDREF 7 30 PCIeT LR2 GNDREF 8 29 PCIeC LR2 REF2 9 28 GNDPCIe REF1 10 27 VDDPCIe SELPCIE125 100/REF0 11 26 PCIeT LR1 AVDD12 24 12 25 PCIeC LR1 13 14 15 16 17 18 19 20 21 22 23 24 48-Pin VFQFPN Indicates Internal 100kohm pull up resistor FREESCALE P10XX AND P20XX SYSTEM CLOCK WITH SELECTABLE DDR FREQUENCY 2 MAY 5, 2017 FS0/USB CLK1 VDDREF FS1/USB CLK2 SDATA GND12 24 SCLK GND2.048 GndDDR CK2.048 0 SEL100 66/DDRCLK 6V49205B CK2.048 1 VddDDR VDD2.048 AVDDSYS AVDD125 Sys CCB 125M GNDSYS GND125M GNDPCIe PCIeT LR0 PCIeT LR5 PCIeC LR0 PCIeC LR5