The Teensy 4.1 board supports 1 or 2 of these 8-pin 8MB PSRAM chips to expand the memory on the module to 8 or 16MB.
- ESP PSRAM64H SMD IC
- IPUS IPS6404LSQ SMD IC
KEY FEATURES OF 8MB PSRAM:
- 8MB (64 Mbit) memory organized as 256 x 8 bytes
- SPI Interface
- 133MHz clock rate
These ICs provide additional volatile memory to the Teensy 4.1 board.
The smaller footprint supports one of these 8MB PSRAM chips. In addition PSRAM can also be installed on the larger footprint providing a total of 16MB additional memory. If only one PSRAM is being installed, it must be positioned on the smaller pads.
Use the extRAM_t4 library to work with PSRAM.
Use this Teensy41_psram_memtest to test the memory chip is properly mounted.
The approved compatible PSRAM chips which are interchangeable include the following. Your order may be filled with either of these parts.
- IPUS IPS6404LSQ
- ESP PSRAM64H
You can find a little more info on adding the memory chips here on the PJRC site.
|Package Type||Plastic body, SOP-8|
|Mfr||ESP or IPUS|