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SRAM, 64 Kbit, 8K x 8bit, 2.7V to 3.6V, SOIC, 8 Pins

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Technical Datasheet:
23K640-I/SN   Datasheet
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Product Overview

The 23K640-I/SN is a 64kb SPI Bus Low-power Serial SRAM memory accessed via a simple serial peripheral interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. It may also interface with microcontrollers that do not have a built-in SPI port by using discrete I/O lines programmed properly in firmware to match the SPI protocol.
  • 16MHz Maximum clock
  • Low-power CMOS technology
  • 3mA at 1MHz Read current
  • 4µA at 3.6V Maximum standby current
  • 8192 x 8-bit organization
  • 32-byte page
  • Flexible operating modes - byte read and write, page mode (32-byte page), sequential mode
  • Sequential read/write
  • High reliability


Communications & Networking, Audio, Wireless, Metering, Automotive


ESD sensitive device, take proper precaution while handling the device. Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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8K x 8bit

2.7V to 3.6V





MSL 1 - Unlimited

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Technical Documents (4)

CAD Downloads


Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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434 In stock

500 more will be available on 1/11/23
600 more will be available on 2/18/23
600 more will be available on 2/20/23

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Due to market conditions delivery times are for general guidance only and may be subject to change at short notice


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