| 制造商 | 部件名 | 数据表 | 功能描述 |

STMicroelectronics
|
M41T315Y |
241Kb/30P |
Serial access phantom RTC supervisor |
| M41T315Y |
404Kb/24P |
Serial Access Phantom RTC Supervisor |
| M41T80 |
122Kb/20P |
SERIAL ACCESS RTC WITH ALARMS |
| M41ST85W |
369Kb/41P |
3.0/3.3V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor |
| M41ST85W |
606Kb/34P |
3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor |
| M41T81S |
507Kb/32P |
Serial access real-time clock (RTC) with alarms |
| M41ST85W |
450Kb/43P |
3.0/3.3 V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor |

Texas Instruments
|
BQ4847 |
224Kb/5P |
RTC Module With CPU Supervisor |
| BQ4847 |
247Kb/6P |
RTC Module With CPU Supervisor |
| BQ4845 |
1Mb/22P |
Parallel RTC With CPU Supervisor |
| BQ4845 |
1Mb/24P |
Parallel RTC With CPU Supervisor |

STMicroelectronics
|
M41T00CAP |
385Kb/27P |
Serial access real-time clock (RTC) with integral backup battery and crystal |
| M41ST85Y |
530Kb/34P |
5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
| M41T00 |
99Kb/15P |
Serial Access TIMEKEEPER |
| M41T82 |
453Kb/58P |
Serial RTC with battery switchover |

Ramtron International C...
|
FM31T372 |
796Kb/26P |
System Supervisor & Temperature Compensated RTC(TCXO) with Embedded Crystal |

STMicroelectronics
|
M41ST95W |
545Kb/35P |
5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor |

Dallas Semiconductor
|
DS1305 |
257Kb/22P |
Serial Alarm Real Time Clock RTC |
| DS1306 |
277Kb/20P |
Serial Alarm Real Time Clock RTC |

Maxim Integrated Produc...
|
DS1388 |
381Kb/18P |
I2C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM Rev 0; 4/05 |