| 制造商 | 部件名 | 数据表 | 功能描述 |

Ramtron International C...
|
FM3130 |
401Kb/22P |
Integrated RTC/Alarm and 64Kb F-RAM |
| FM3135 |
267Kb/21P |
Integrated RTC/Alarm/F-RAM & Embedded Crystal |

Maxim Integrated Produc...
|
MAX6916 |
338Kb/28P |
SPI-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller Rev 0; 10/05 |
| MAX6917 |
315Kb/31P |
I2C-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller Rev 1; 10/05 |

Dallas Semiconductor
|
DS1306 |
277Kb/20P |
Serial Alarm Real Time Clock RTC |

Maxim Integrated Produc...
|
DS1375 |
197Kb/13P |
I2C Digital Input RTC with Alarm Rev 2; 9/08 |

Dallas Semiconductor
|
DS1305 |
257Kb/22P |
Serial Alarm Real Time Clock RTC |

Ramtron International C...
|
FM3130 |
262Kb/22P |
Integrated RTC/Alarm and 64Kb FRAM |

Epson Company
|
RTC4573 |
157Kb/12P |
Serial RTC with Alarm and Timer |

Dallas Semiconductor
|
DS1375 |
315Kb/11P |
2-Wire Digital Input RTC with Alarm |

Motorola, Inc
|
MC146818 |
930Kb/22P |
REAL-TIME CLOCK PLUS RAM (RTC) |

Hitachi Semiconductor
|
HD146818 |
1Mb/19P |
RTC(REAL TIME CLOCK PLUS RAM) |

Maxim Integrated Produc...
|
DS1338 |
247Kb/16P |
I2C RTC with 56-Byte NV RAM Rev 9/11 |
| DS1338 |
508Kb/16P |
I2C RTC with 56-Byte NV RAM REV: 010307 |
| DS1338 |
268Kb/16P |
I2C RTC with 56-Byte NV RAM REV: 100108 |
| DS1338_1203 |
477Kb/16P |
I2C RTC with 56-Byte NV RAM Rev 3/12 |

Cypress Semiconductor
|
FM21LD16 |
438Kb/15P |
2Mbit F-RAM Memory |
| FM22LD16 |
434Kb/14P |
4Mbit F-RAM Memory |

Ramtron International C...
|
FM21LD16 |
277Kb/15P |
2Mbit F-RAM Memory |
| FM22LD16 |
215Kb/14P |
4Mbit F-RAM Memory |