4 layers90.2 × 95.9 mm
Overview
The MR20H40CDF is a random Access Memory made by Everspin Tech in a DFN-8-EP(5x6) package with 9 pins. -40℃~+85℃ 3V~3.6V 4Mbit MRAM SPI DFN-8-EP(5x6) Random Access Memory (RAM) ROHS.
PCBKit's library has its KiCad symbol (Memory_NVRAM:MR20H40, from KiCad's library) and its footprint (EasyEDA_Cloud:DFN-8_L5.0-W6.0-P1.27-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C17396300). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
6- Features
- Software write protection function, Block protection function, Write protection function, Write enable latch function, Hardware write protection function, Power-up/power-down/under-voltage data protection function
- Interface
- SPI
- Memory Format
- MRAM
- Memory Size
- 4Mbit
- Operating Temperature
- -40℃~+85℃
- Voltage - Supply
- 3V~3.6V
Order codes
1- MR20H40CDFLCSC C17396300
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | CS | Input |
| 2 | SO | Output |
| 3 | WP | Input |
| 4 | VSS | Power in |
| 5 | SI | Input |
| 6 | SCK | Input |
| 7 | HOLD | Input |
| 8 | VDD | Power in |
| 9 | PAD | Power in |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/everspin-tech/MR20H40CDF" title="MR20H40CDF in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/everspin-tech/MR20H40CDF.jpg" alt="MR20H40CDF" width="1200" height="900">[](https://pcbkit.io/parts/everspin-tech/MR20H40CDF)Questions
Is there a KiCad symbol and footprint for the MR20H40CDF?
Yes. The symbol is Memory_NVRAM:MR20H40 and the footprint EasyEDA_Cloud:DFN-8_L5.0-W6.0-P1.27-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MR20H40CDF?
DFN-8-EP(5x6), with 9 pins. Its footprint is drawn on this page.
Where is the MR20H40CDF datasheet?
Everspin Tech publishes it: the Datasheet link on this page opens it.
Where can I order the MR20H40CDF?
JLCPCB lists it as part C17396300, with 0 in stock; the sellers' links on this page open their listings.
What can replace the MR20H40CDF?
Parts like it in the library: the MR25H10CDFR by Everspin Tech, the MR25H40MDF by Everspin Tech, the MR25H256AMDF by Everspin Tech and the MR25H256CDF by Everspin Tech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MR20H40CDF?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
MR25H10CDFR
DFN-8-EP(5x6)1Mbit MRAM SPI DFN-8-EP(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR25H40MDF
DFN-8-EP(5x6)4Mbit MRAM SPI DFN-8-EP(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR25H256AMDF
DFN-8(5x6)256Kbit MRAM SPI DFN-8(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR25H256CDF
DFN-8(5x6)256Kbit MRAM SPI DFN-8(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR25H256CDFR
DFN-8(5x6)256Kbit MRAM SPI DFN-8(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR25H256MDF
DFN-8(5x6)-40℃~+125℃ 256Kbit MRAM SPI DFN-8(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR25H256MDFR
DFN-8(5x6)256Kbit MRAM SPI DFN-8(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)MR20H40DF
DFN-8-EP,SMALLFLAG(5x6)4Mbit MRAM Power-up/power-down/under-voltage data protection function、Software write protection function、Block protection function、Write protection function、Write enable latch function、Hardware write protection function SPI DFN-8-EP,SMALLFLAG(5x6) Random Access Memory (RAM) ROHSEverspin TechRandom Access Memory (RAM)