Features
- 8-pin SOIC package
- Four addressable registers
- Input crystal frequency of 5 to 27 MHz
- Clock input frequency of 3 to 150 MHz
- Output clock frequencies up to 200 MHz
- Configurable Spread Spectrum Modulation
- Operating voltage of 3.3 V
- Replaces multiple crystals and oscillators
- Controllable output drive levels
- Advanced, low-power CMOS process
- Available in RoHS compliant packaging
Description
The 251 is a low cost, single-output, field programmable clock synthesizer. The 251 can generate an output frequency from 314 kHz to 200 MHz and may employ Spread Spectrum techniques to reduce system electro-magnetic interference (EMI). Using IDT's VersaClock™ software to configure the PLL and output, the 251 contains a One-Time Programmable (OTP) ROM to allow field programmability. Programming features include 4 selectable configuration registers. The device employs Phase-Locked Loop (PLL) techniques to run from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The device also has a power-down feature that tri-states the clock outputs and turns off the PLLs when the PDTS pin is taken low. The 251 is also available in factory programmed custom versions for high-volume applications.
Support Communities
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Possibility of receiving more than 251 bytes over BLE using DA14531 using datapump set
... is based off of 6.380.16.55. Would it be possible to introduce a circular pipe to send incoming stream of data (more than 251 byte) over BLE at 115200 baud rate or increase the byte handler max size? Trying to introduce anything above 251 breaks the BT connection ...
May 9, 2025 -
Possibility of receiving more than 251 bytes over BLE using DA14531
The current architecture is based off of 6.380.16.55. Would it be possible to introduce a circular pipe to send incoming stream of data (more than 251 byte) over BLE at 115200 baud rate or increase the byte handler max size? Trying to introduce anything above 251 breaks ...
May 8, 2025 -
Can we increase the MTU size from 251 to 512 for DA14531 MOD?
Hi Renesas, iam using code Less version: 6.380.14.22. Can we increase the MTU size from 251 to 512 for DA14531 MOD? Regards, Laxmi Narayana.
Apr 22, 2024
Support Communities
