Skip to content

Commit

Permalink
update readme.md
Browse files Browse the repository at this point in the history
  • Loading branch information
@RobTillaart
RobTillaart committed Oct 3, 2023
1 parent bd53eca commit 413e81e
Showing 1 changed file with 34 additions and 20 deletions.
54 changes: 34 additions & 20 deletions README.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,10 @@ Another important feature FRAM has in common with EEPROM is that FRAM keeps
its content after a reboot as it is non-volatile, even for years.
That makes it ideal to store configuration or logging data in a project.

Types of FRAM that should work with this library:

#### Fujitsu

Types of FRAM tested with this library:

| TYPE | SIZE | TESTED | NOTES | uses | ref |
|:------------:|---------:|:--------:|:-----------------------|:---------|:-----:|
Expand All @@ -46,13 +49,21 @@ Types of FRAM that should work with this library:
| MB85RC512T | 64 KB | Y | | FRAM | |
| MB85RC1MT | 128 KB | Y | | FRAM32 | #19 |


MB85RC128A and MB85RC64V have no size / deviceID, **clear()** will not work correctly, unless
one calls **setSizeBytes(16 \* 1024)** or **setSizeBytes(8 \* 1024)** to set the size manually.

For the FRAM9 and FRAM11 the size problem is solved (hard coded) in their class.


#### Ramtron

Types of FRAM tested with this library:

| TYPE | SIZE | TESTED | NOTES | uses | ref | Notes |
|:------------:|---------:|:--------:|:-----------------------|:---------|:-----:|:--------|
| FM24C256-G | 512 | Y | no deviceID register | FRAM | #45 | test with ESP32


#### Notes

- Not all types of FRAM are tested. Please let me know if you have verified one that is not in the list.
Expand Down Expand Up @@ -228,15 +239,16 @@ Returns true if connected after the call.
According to the data sheets there are only three FRAM devices support the sleep command.
So use with care.

| TYPE | SIZE | SLEEP (datasheet) | CURRENT | CONFIRMED | NOTES |
|:------------:|-------:|:------------------:|:---------:|:-----------:|:----------|
| MB85RC04 | 512 | not supported | - | N | |
| MB85RC16 | 2 KB | not supported | - | N | |
| MB85RC64T | 8 KB | Y Page 11 | 4.0 uA* | N | |
| MB85RC128A | 16 KB | not supported | - | N | |
| MB85RC256V | 32 KB | not supported | - | Y | |
| MB85RC512T | 64 KB | Y Page 12 | 4.0 uA* | N | |
| MB85RC1MT | 128 KB | Y Page 12 | 3.6 uA | Y | See #17 |
| TYPE | SIZE | SLEEP (datasheet) | CURRENT | CONFIRMED | NOTES |
|:------------:|--------:|:------------------:|:---------:|:-----------:|:----------|
| MB85RC04 | 512 | not supported | - | N |
| MB85RC16 | 2 KB | not supported | - | N |
| MB85RC64T | 8 KB | Y Page 11 | 4.0 uA\* | N |
| MB85RC128A | 16 KB | not supported | - | N |
| MB85RC256V | 32 KB | not supported | - | Y |
| MB85RC512T | 64 KB | Y Page 12 | 4.0 uA\* | N |
| MB85RC1MT | 128 KB | Y Page 12 | 3.6 uA | Y | See #17
| FM24C256-G | 32 KB | not supported | | Y | See #45

_current with \* are from datasheet_

Expand All @@ -246,15 +258,17 @@ _current with \* are from datasheet_
Indicative power usage in uA in three modi (if supported).


| TYPE | SIZE | STANDBY | WRITE | SLEEP | NOTES |
|:----------:|-------:|:--------:|:---------:|:---------:|:--------|
| MB85RC04 | 512 | | | - | |
| MB85RC16 | 2 KB | | | - | |
| MB85RC64T | 8 KB | | | 4.0 uA | |
| MB85RC128A | 16 KB | | | - | |
| MB85RC256V | 32 KB | 10.22 uA | 93.48 uA | - | |
| MB85RC512T | 64 KB | | | 4.0 uA | |
| MB85RC1MT | 128 KB | 11.7 uA | 46-721 uA | 3.6 uA | See #17 |
| TYPE | SIZE | STANDBY | WRITE | SLEEP | NOTES |
|:----------:|-------:|:---------:|:---------:|:---------:|:--------|
| MB85RC04 | 512 | | | - |
| MB85RC16 | 2 KB | | | - |
| MB85RC64T | 8 KB | | | 4.0 uA |
| MB85RC128A | 16 KB | | | - |
| MB85RC256V | 32 KB | 10.22 uA | 93.48 uA | - |
| MB85RC512T | 64 KB | | | 4.0 uA |
| MB85RC1MT | 128 KB | 11.7 uA | 46-721 uA | 3.6 uA | See #17
| FM24C256-G | 32 KB | 100 uA | | | See #45


_TODO: fill the table_

Expand Down

0 comments on commit 413e81e

Please sign in to comment.