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Silicon Labs 25MHz Function Generator IC 24-Pin QFN, Si52142-A01AGM

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195 Available in 4–6 working days for collection or delivery to major cities, unless heavy, bulky, hazardous or lithium metal (TCs Apply)
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Price (Excl VAT) Each (In a Pack of 5)

R 28.466

(exc. VAT)

R 32.736

(inc. VAT)


Not Available for premium delivery


Packaging Options:
RS stock no.:
Mfr. Part No.:
Silicon Labs
unitsPer unitPer Pack*
5 - 20R 28.466R 142.33
25 - 95R 27.896R 139.48
100 - 495R 27.06R 135.30
500 - 995R 25.978R 129.89
1000 +R 24.938R 124.69
*price indicative

Si521xx PCIe Clock Generators, Silicon Labs

The Silicon Labs Si521xx PCI-Express clock generators feature low-power push-pull output buffer technology reducing the external terminating resistors and enabling smaller packaging.

To increase performance they support programmable drive strength, rise/fall times, output impedance and down spread spectrum clock generation is also supported.

The devices support the standard PCIe HCSL signalling format and can be externally terminated to support LVPECL, LVDS or CML levels.

- Push-pull HCSL output buffer technology
- Fully integrated termination resistors on PCIe outputs
- Programmable spread spectrum
- Pin strapping to enable spread spectrum
- I²C/SMBus programmable
- Supports optional LVPECL, LVDS or CML levels
- -40 to 85°C operation
- Individual output enable control
- Small form factor QFN and TDFN packaging

Maximum Frequency25MHz
Maximum Duty Cycle55%
Mounting TypeSurface Mount
Package TypeQFN
Pin Count24
Dimensions4 x 4 x 0.75mm
Maximum Operating Supply Voltage3.465 V
Maximum Operating Temperature+85 °C
Maximum Output Frequency100MHz
Minimum Operating Supply Voltage3.135 V
Minimum Operating Temperature-40 °C