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AN535
| Title |
Title
Logic Powered Serial EEPROMs
|
|---|---|
| Name |
Name
AN535
|
| Date |
Date
06/24/2015
|
| Product Categories |
Product Categories
8-bit MCU
|
| Description |
Description
Embedded applications increasingly want more integration and power, in less space for less cost. Using low power Serial EEPROMs (SEE) for application firmware, lookup tables, and microcode coupled with small footprints makes for permanent storage at respectable savings. One additional method of saving on the power budget is selectively powering off components when not needed, a basic for embedded power management. The low-power SEEs offered by Microchip Technology Inc., offer an additional benefit, powering the SEE from a microcontroller port. This allows the host controller to not only manipulate the Serial EEPROM Reads and Write, but also the periods when it is powered off or on. Satellite communications use this technique to save power and total dose accumulation. We call this technique POWER PORTä. The microcontroller port must have sufficient Ioh (source current) to sustain the voltage and current for all memory functions, READ, ERASE, and WRITE. Obviously, not all memory or peripheral devices could be powered thusly, but Microchip?s SEE devices will function in this environment.
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Files
| Title | Title | Download | Date | Size |
|---|---|---|---|---|
| AN535 Source Code - Logic Powered Serial EEPROMs 11.3 KB 06/24/2015 | AN535 Source Code - Logic Powered Serial EEPROMs | Download | 06/24/2015 | 11.3 KB |