| 制造商 | 部件名 | 数据表 | 功能描述 |
 NXP Semiconductors |
PCA2125
|
1Mb / 40P |
SPI Real time clock / calendar
Rev.00.11-30 January 2007 |
|
PCF2123
|
239Kb / 54P |
SPI Real time clock/calendar
Rev. 01-19 November 2008 |
|
PCA2125
|
189Kb / 36P |
SPI Real-time clock/calendar
Rev. 01-28 July 2008 |
|
PCF2123
|
1Mb / 55P |
SPI Real time clock/calendar
Rev. 02-4 December 2009 |
 Micro Analog systems |
MCP795WXX
|
969Kb / 54P |
SPI Real-Time Clock Calendar
|
|
MCP7952X
|
946Kb / 50P |
3V SPI Real-Time Clock Calendar with Battery Switchover
|
 STMicroelectronics |
M41T93
|
787Kb / 51P |
Serial SPI bus real-time clock with battery switchover
12-Oct-2011 |
 Microchip Technology |
MCP795W1X
|
1Mb / 54P |
3V SPI Real-Time Clock Calendar with Enhanced Features and Battery Switchover
2011-2012 11/29/11 |
|
MCP79400
|
1Mb / 42P |
I2C Real-Time Clock/Calendar with SRAM, Unique IDand Battery Switchover
11/29/11 |
|
MCP7951X
|
899Kb / 58P |
Battery-Backed SPI Real-Time Clock/Calendar
09/14/21 |