Features
- Packaged as a 48-pin TSSOP or 48-pin VFQFPN–Pb-free, RoHS-compliant
- Replaces 11 crystals, 2 oscillators, and 3 clock synthesizers
- Uses external reference crystal
- Operating voltage – 3.3V
- Supports spread spectrum modulation
- Supports I2C Standard and Fast modes
- Meets PCI Express Gen 1/2/3 performance
- 2.048MHz output to output skew <250ps
- Low phase noise for REF outputs
- Advanced, low-power CMOS process
- Supports the industrial temperature range
Description
The 6V49205B is a clock generator specifically designed for the Freescale P1010, P1020, P2020, and P2040 processors. The device uses a low-cost 25MHz crystal as an input and generates 19 high-quality output clocks for use in Freescale-based systems. The 6V49205B produces the following output frequencies:
- 1 – 100MHz/66.66MHz/80MHz/83.333MHz selectable for System CCB
- 1 – DDR_CLK; selectable 100MHz or 66.66MHz
- 2 – 12MHz/24MHz selectable outputs for USB
- 6 – PCIe differential low-power push-pull pairs; selectable 100MHz or 125MHz
- 6 – REF, 25MHz
- 2 – 2.048MHz for E1
- 1 – 125MHz for Gigabit
Parameters
| Attributes | Value |
|---|---|
| Output Freq Range (MHz) | 100 - 100, 66.66 - 66.66, 80 - 80, 83.333 - 83.333, 12 - 12, 24 - 24, 125 - 125, 2.048 - 2.048, 25 - 25 |
| Supply Voltage (V) | 3.3 - 3.3 |
| Output Type | LVCMOS, HCSL |
| Xtal Freq (MHz) | 25 - 25 |
| Package Area (mm²) | 49, 76.3 |
| Battery Backup | No |
| Battery Seal | No |
| CPU Supervisory Function POR | No |
| Crystal Frequency Trimming | No |
| Frequency Out Pin | No |
| Inputs (#) | 1 |
| Input Freq (MHz) | 25 - 25 |
| Function | Generator |
| Input Type | Crystal, LVCMOS |
| Output Banks (#) | 8 |
| Core Voltage (V) | 3.3 |
| Output Voltage (V) | 0.8V, 3.3V |
| Product Category | General Purpose Clocks, PCI Express Clocks, Processor Clock Generators |
Applications
- System clock for Freescale P10xx and P20xx-based designs
Support Communities
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6V49205BNLGI8 - Timing Commander Personality File
Dear Renesas Support Team, I am currently working with the 6V49205BNLGI8 and attempting to configure it using Timing Commander. However, the software is prompting for a personality file/device configuration file, which I do not have. Without this file, I am unable to proceed with device configuration or generate ...
May 6, 2026
Knowledge Base
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Can a 3.3V signal from a 25 MHz crystal oscillator be used as an input signal to the 6V49205 family (6V49205A & 6V49205B), instead of a 25 MHz crystal?
Yes. The X1 pin can be driven directly from a quartz crystal clock oscillator. We recommend using a 33 ohm series resistor on the oscillator output. Do not use MEMS or programmable clock oscillators. The X2 (Xout) pin needs to be left floating. For other questions not addressed by the ...
Oct 31, 2016
Support Communities
