2PCs APM6404 IOT SPI RAM PSRAM, Replace IPS6404


Availability: Out of stock SKU: CIC1050 Category: Tags: , , , ,


APS6404L-3SQR-SN, 64Mbit  3.3V, SO08 package, product from APMemory. Datasheet please see here. 

APS6404L is fully compatible with IPS6404L.

IPS6404L-SQ-SPN, 64Mbit  3.3V, SO08 package, product from IPUS.

This is also called a IOT RAM, SPI/QPI PSRAM, maxium frequency speed up to 104Mhz.

What you can do with RAM

  • Play again like DOOM on your MCU platform, for example ESP32 (not yet test).
  • Run micropython on a faster speed.
  • For more RAM for coding, etc.

IPS1704L is the old version, not available anymore, IPS6404 is the fully compatible new version.

Datasheet please see it here.

For buck order, please contact Li by email here.


Additional information

Weight 0.005 kg

4 reviews for 2PCs APM6404 IOT SPI RAM PSRAM, Replace IPS6404

  1. 5 out of 5

    Borislav Lovosevic (verified owner)

    As this is a 3.3V device, it can be used with ESP-WROM-32 and all boards using 3.3V Flash.

    I’ve tested the chip on Adafruit HUZZAH32 – ESP32 Feather Board which has ESP-WROOM-32 module with rev1 ESP32.

    I removed the ESP-WROOM-32 shield, replaced the Flash with Winbond’s 3.3V 16 MB Flash, and connected the IPS6404L-SQ-SPN and 10K pull-up to GPIO16.

    The SPIRAM was recognized (as well as 16MB Flash).
    I’ve tested the SPIRAM functionality extensively for more tha 24 hours and there were no problems.
    Tested with Flash (in QIO mode) & SPIRAM running at 40MHZ and 80MHz.

    Image: http://loboris.eu/ESP32_Feather_psRAM.jpg

  2. 5 out of 5

    Borislav Lovosevic (verified owner)

    Sorry, wrong image link, correct one is http://loboris.eu/ESP32/ESP32_Feather_psRAM.jpg

  3. 3 out of 5

    Chao (store manager)

    Looks good! Good to know it can work with esp32. Thank you!

  4. 5 out of 5

    Stuart Nguyen

    @Borislav Lovosevic: when you add more psrams. What do you modify anything in code ? Or just only using default code, which using in ESP-wrover?

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