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PSRAM - Revision history
2026-06-07T23:12:19Z
Revision history for this page on the wiki
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https://w.electrodragon.com/w/index.php?title=PSRAM&diff=29603&oldid=prev
Chao at 10:34, 8 February 2021
2021-02-08T10:34:48Z
<p></p>
<p><b>New page</b></p><div>* ESP-PSRAM64H<br />
* IPS6404L / APM6404L<br />
<br />
<br />
=== RAM, PSRAM ===<br />
* Serial Pseudo-SRAM<br />
[[File:Ly68L6400.png|thumbnail|800px]]<br />
[[File:Pico-psram wiring.jpg|400px|thumbnail]]<br />
* [https://drive.google.com/file/d/1-5NtY1bz0l9eYN9U0U4dP3uASwnMmYGP/view?usp=sharing Datasheet of IPUS IOT RAM]<br />
* Datasheet of Lyontek PSRAM<br />
<br />
{| class="wikitable sortable"<br />
|-<br />
! Type !! Package !! Specs<br />
|-<br />
| MT45W8MW16BGX || Example || Example<br />
|-<br />
| LY68S6400 - 64Mbit || SOP 8 || 1.8V <br />
|-<br />
| LY68S3200 - 32Mbit || SOP 8 || 1.8V<br />
|-<br />
| [[:File:LY68L6400_0.3.pdf|LY68L6400]] - 64Mbit || SOP 8 || 3.3V<br />
|-<br />
| LY68L3200 - 32Mbit || SOP 8 || 3.3V<br />
|}<br />
* Pin Definition with ESP32-PICO Board<br />
{| class="wikitable sortable"<br />
|-<br />
! PICO Kit Pins !! PSRAM SOP8 Pins !! Note<br />
|-<br />
| IO9 || 1 #cs clk || pulled up to VDD 3.3V !<br />
|-<br />
| IO17 || 2 || FSD0<br />
|-<br />
| IO7 || 3 || FSD3<br />
|-<br />
| GND || 4 || Ground <br />
|-<br />
| IO8 || 5 || FSD1<br />
|-<br />
| IO10 || 6 || <br />
|-<br />
| IO11 || 7 || FSD2<br />
|-<br />
| VDD3.3 || 8 || VDD<br />
|-<br />
| IO6 || - || FCLK<br />
|-<br />
| IO16 || - || FCS<br />
<br />
|}<br />
* 32 Mbit 1.8 Wrover<br />
* 32 Mbit 3.3 Wroom, Pico, RDA<br />
* 64 Mbit 3.3 RDA<br />
<br />
* Code reference - https://esp32.com/viewtopic.php?f=2&t=2713&start=30#p13463<br />
<br />
<br />
[[category: RAM]]</div>
Chao