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AN2027
| Title |
Title
Backup Power Sources for Microchip's RTCCs and SRAMs
|
|---|---|
| Name |
Name
AN2027
|
| Date |
Date
12/01/2015
|
| Description |
Description
This application note offers guidance for choosing the most suitable backup source for RTCC and SRAM-based projects and describes several ways to sustain clock and data in products that are susceptible to power interruptions.
|
Silicon Products
| Title | Product | Title |
|---|---|---|
|
23LCV1024
1Mb SPI Serial SRAM with Battery Backup
|
23LCV1024 | 1Mb SPI Serial SRAM with Battery Backup |
|
23LCV512
512Kb SPI Serial SRAM with Battery Backup
|
23LCV512 | 512Kb SPI Serial SRAM with Battery Backup |
|
MCP79512
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID
|
MCP79512 | Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID |
|
MCP795W22
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID
|
MCP795W22 | Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID |
|
MCP79411
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID
|
MCP79411 | Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID |
|
MCP79400
Battery-Backed I2C Real-Time Clock/Calendar with SRAM and EEPROM
|
MCP79400 | Battery-Backed I2C Real-Time Clock/Calendar with SRAM and EEPROM |
|
MCP79521
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID
|
MCP79521 | Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID |
|
MCP795W21
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID
|
MCP795W21 | Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID |
|
MCP795W12
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID
|
MCP795W12 | Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID |
|
MCP79412
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID
|
MCP79412 | Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID |
|
MCP79401
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID
|
MCP79401 | Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID |
|
MCP795W20
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar
|
MCP795W20 | Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar |
|
MCP79510
Battery-Backed SPI Real-Time Clock/Calendar
|
MCP79510 | Battery-Backed SPI Real-Time Clock/Calendar |
|
MCP795W11
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID
|
MCP795W11 | Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID |
|
MCP79511
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID
|
MCP79511 | Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID |
|
MCP795W10
Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar
|
MCP795W10 | Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar |
|
MCP79520
Battery-Backed SPI Real-Time Clock/Calendar
|
MCP79520 | Battery-Backed SPI Real-Time Clock/Calendar |
|
MCP79522
Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID
|
MCP79522 | Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID |
|
MCP7940N
Battery-Backed I2C Real-Time Clock/Calendar with SRAM
|
MCP7940N | Battery-Backed I2C Real-Time Clock/Calendar with SRAM |
|
MCP79410
Battery-Backed I2C Real-Time Clock/Calendar with SRAM and EEPROM
|
MCP79410 | Battery-Backed I2C Real-Time Clock/Calendar with SRAM and EEPROM |
|
MCP79402
Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID
|
MCP79402 | Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-64™ MAC ID |