Skip to main content
Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to SalesClocks@sitime.com. Full transition to SiTime is expected by late 2026.

Features

  • Pin compatible with FS6286-01
  • Low operating voltage of 3.3 V
  • On-chip oscillator supports 14.31818 MHz crystal
  • Fixed dual 25 MHz clocks for Ethernet
  • 40/80 MHz selected on rising edge of OE/LAT pin
  • Power consumption of 15 mA (typ)
  • Duty cycle of 45 to 55 percent
  • Packaged in 8-pin SOIC
  • Available in Pb (lead) free package

Description

The IDT409 is a cost-effective clock synthesizer developed to optimize component count for PC peripheral applications. The device supports a common, low cost 14.31818 MHz crystal using an on-chip crystal oscillator. The device locks all output frequencies to enhance system performance. By supporting common PC peripheral interface frequencies including dual 25 MHz and 40/80 MHz frequencies the clock lowers chip count enhancing system cost and reliability. The IDT409 utilizes a low pin count 8-pin SOIC package to optimize board space. IDT provides a wide-range of low-jitter and power consumer application clock sources. These devices are capable of supporting CCD, video, audio, USB, CPU, and other peripherals.

Part NumberStatusSamplesStockPackageLead Count (#)Temp. GradePb (Lead) FreeCarrier Type
409MLFObsoleteN/AOut of StockSOIC8#CYesTube
409MLFTObsoleteN/AOut of StockSOIC8#CYesReel

Support Communities

  1. NetX Duo HTTPS Client receive file larger than 4094 bytes

    ... now all works perfect with connection and I do get data from the server, with one HUGE issue, if the response data has more than 4094 bytes in it then I don't get the response from the server with this call statusRX = nx_web_http_client_response_body_get ...

    May 29, 2020
  2. On-Chip Oscillator frequency on H8/38086

    Hi,could anyone tell me where can I read the exact work frequency of the on-chip oscillator of h8/38086 (masked rom version) ? In the hw manual it says to contact a Renesas rapresentative to know this value.Kind regardsDavide Urbano

    Jul 14, 2010
  3. Serial Buffer

    I've got the stdio up and working, and everything's under default settings (I've done no redirecting of anything). I'm wanting to run a "real-time" system that goes through everything, checking to see if it needs to do something at each step (like checking for character ...

    Jul 23, 2013
View All Results from Support Communities (420)

Knowledge Base

  1. RZ Family: Implement RWW (Read-While-Write) feature on XSPI

    ... or editors.     /*---------- Sector Erase ----------*/     fsp_err_t err = R_XSPI_QSPI_Erase(&g_qspi0_ctrl, (uint8_t *)QSPI_DEVICE_BANK3_START_ADDRESS, 4096);     handle_error(err);     /* Wait for status register to update. */    spi_flash_status_t status_erase;    do    {        R_BSP_SoftwareDelay(50, BSP_DELAY ...

    Oct 6, 2025
  2. What kind of memory is available in SLG47011?

    Last Updated: 06/24/2025 Question: What kind of memory is available in SLG47011? Answer: It features 4 Data Buffers (8×Word (16bit) each) and a 4096×12-bit Memory Table to store data from. Suitable Products SLG47011

    Jun 24, 2025
  3. r_dac Module Guide Resources

    ... converter (DAC12) peripheral on Synergy MCUs.   The DAC HAL module configures the dual-channel 12-bit D/A Converter (DAC12) to output one of 4096 voltage levels between the positive and negative reference voltages. It supports the following feature: Set either a left-justified or right-justified 12-bit ...

View All Results from Knowledge Base (8)
Support Communities

Support Communities

Get quick technical support online from Renesas Engineering Community technical staff.
Browse Articles

Knowledge Base

Browse our knowledge base for helpful articles, FAQs, and other useful resources.
Submit a Ticket

Submit a Ticket

Need to ask a technical question or share confidential information?