| Produttore elettronici | Il numero della parte | Scheda tecnica | Spiegazioni elettronici |

Texas Instruments
|
BQ4285E |
1Mb/31P |
Enhanced RTC With NVRAM Control |
| BQ4285E |
1Mb/32P |
Enhanced RTC With NVRAM Control |
| BQ4285 |
1Mb/27P |
Real-Time Clock RTC With NVRAM Control |
| BQ4285 |
1Mb/29P |
Real-Time Clock (RTC) With NVRAM Control |

STMicroelectronics
|
M41T56 |
483Kb/27P |
Serial real-time clock (RTC) with 56 bytes NVRAM |
| M41T11 |
231Kb/30P |
Serial real-time clock (RTC) with 56 bytes of NVRAM |

Texas Instruments
|
BQ4287 |
142Kb/8P |
Real-Time Clock Module With NVRAM Control |
| BQ4287MT-SB2 |
376Kb/10P |
Real-Time Clock Module With NVRAM Control |

Maxim Integrated Produc...
|
DS1500 |
365Kb/19P |
Y2K Watchdog RTC with Nonvolatile Control REV: 111705 |
| DS1500 |
547Kb/20P |
Y2K Watchdog RTC with Nonvolatile Control Rev 11/11 |

Dallas Semiconductor
|
DS1500 |
351Kb/19P |
Y2K Watchdog RTC with Nonvolatile Control |

STMicroelectronics
|
M41ST84W |
302Kb/34P |
3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions |
| M41ST87W |
787Kb/54P |
5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM |
| M41ST85W |
369Kb/41P |
3.0/3.3V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor |
| M41ST87Y |
461Kb/48P |
5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM |

Texas Instruments
|
BQ3285LF |
150Kb/22P |
Y2K-Enhanced Real-Time Clock (RTC) |

STMicroelectronics
|
M41ST87Y |
695Kb/52P |
5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM |
| M41ST85W |
606Kb/34P |
3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor |
| M41ST85W |
450Kb/43P |
3.0/3.3 V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor |
| M41ST85Y |
530Kb/34P |
5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |