monsonite 71 Posted March 20, 2016 Author Share Posted March 20, 2016 Earlier this week I stated that the ChipStick module would be the first of a series of MSP430 FRAM based modules - with external SRAM or FRAM. After some thought and experimentation with different pcb layouts and concepts I would like to propose the following: Nanode - a compact 0.4" x 0.5" (10.24 x 12.7mm) MSP430FR2433 module with 2 external SPI memory footprints. 23K256 (32Kbytes) or 23C1024 (128Kbytes) SRAM in SSOP package on board underside with up to 256Kbytes FRAM in 8 pin SOIC on board topside. For breadboard/stripboard compatibility I have laid out two sizes of module, ChipStick - a 20 pin 0.3" DIL based on the MSP430FR2433/25xx/26xx for G2 LaunchPad experimentation FramStick - A 40 Pin 0.6" DIL module that accepts the 38 pin TSSOP packages of the MSP430FR57xx and '59xx series. The DIL 40 version will support either 16K or 64K of FRAM processor variants - plus up to two external RAM devices. FramStick has a pinout compatible with the ATmega1284 - for Arduino/Goldilocks cross compatibility. N 2016 20 pin, 1.27mm (haf-pitch) nano-size module "Nanode" F 2016 20 pin, 16K FRAM - uses MSP430FR2433 (or FR25xx, FR26xx) "ChipStick" F 4016 40 pin, 16K FRAM - Uses MSP430FR5739 or equiv. "FramStick" F 4064 40 pin, 64K FRAM - Uses MSP430FR57xx or FR59xx. All modules have an 8 pin SPI memory footprint. This allows either a 23K256 (32Kx8) or 23LC1024 (128Kx8) SRAM or any of the Cypress or Fujitsu FRAM parts up to the 256Kx8 to be fitted - depending on budget. The F20 is intended to plug in as a replacement for the G2553. The F40 is designed to have the same pin out as an ATmega1284 - this is so it can be plugged into various ATmega boards - for an immediate x4 boost in performance. You can follow progress on these devices on my blog. http://sustburbia.blogspot.co.uk/2016/03/experimenting-with-new-devices-part-3.html regards Ken Fmilburn 1 Quote Link to post Share on other sites
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