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Datasheet Microchip MCP79412

The MCP79412 general purpose I2C™Compatible real-time clock/calendar (RTCC) is highly integrated with nonvolatile memory and advanced features normally found in higher priced devices

Datasheets

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  MCP79410/11/12 I2C Battery-Backed I2C RTCC w/SRAM, EEPROM and Protected EEPROM
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  MCP79410/MCP79411/MCP79412
  Battery-Backed I2C Real-Time Clock/Calendar with
  SRAM, EEPROM and Protected EEPROM
  Device Selection Table Operating Ranges MCP79410 Unprogrammed MCP79411 EUI-48в„ў 2-Wire Serial Interface, I2C Compatible:
  -I2C clock rate up to 400 kHz Temperature Range:
  -Industrial (I): -40В°C to +85В°C MCP79412 EUI-64в„ў Packages Part Number Protected EEPROM Timekeeping Features Real-Time Clock/Calendar (RTCC):
  -Hours, minutes, seconds, day of week, day,
  month, year
  -Leap year compensated to 2399
  -12/24-hour modes Oscillator for 32.768 kHz Crystals:
  -Optimized for 6-9 pF crystals On-Chip Digital Trimming/Calibration:
  -В±1 ppm resolution
  -В±129 ppm range Dual Programmable Alarms Versatile Output Pin:
  -Clock output with selectable frequency
  -Alarm output
  -General purpose output Power-Fail Time-Stamp:
  -Time logged on switchover to and from Battery
  mode Low-Power Features Wide Voltage Range:
  -Operating voltage range of 1.8V to 5.5V
  -Backup voltage range of 1.3V to 5.5V Low Typical Timekeeping Current:
  -Operating from VCC: 1.2 ВµA at 3.3V
  -Operating from VBAT: 925 nA at 3.0V Automatic Switchover to Battery Backup User Memory 64-Byte Battery-Backed SRAM 1 Kbit EEPROM Memory:
  -Software write-protect ...

Цены

Статус

Корпус / Упаковка / Маркировка

Параметры

	MCP79412-I/MS	MCP79412-I/SN	MCP79412-I/ST	MCP79412T-I/MNY	MCP79412T-I/MS	MCP79412T-I/SN	MCP79412T-I/ST
Alarms	2 Alarms (1 sec)	2 Alarms (1 sec)	2 Alarms (1 sec)	2 Alarms (1 sec)	2 Alarms (1 sec)	2 Alarms (1 sec)	2 Alarms (1 sec)
Digital_Trimming	-127 to +127ppm (1 ppm steps)	-127 to +127ppm (1 ppm steps)	-127 to +127ppm (1 ppm steps)	-127 to +127ppm (1 ppm steps)	-127 to +127ppm (1 ppm steps)	-127 to +127ppm (1 ppm steps)	-127 to +127ppm (1 ppm steps)
EEPROM, Kbits	1	1	1	1	1	1	1
Ibat Current, нА	700	700	700	700	700	700	700
Interface	I²C™	I²C™	I²C™	I²C™	I²C™	I²C™	I²C™
Рабочий диапазон температур, °C	от -40 до +85	от -40 до +85	от -40 до +85	от -40 до +85	от -40 до +85	от -40 до +85	от -40 до +85
Outputs	IRQ/CLK	IRQ/CLK	IRQ/CLK	IRQ/CLK	IRQ/CLK	IRQ/CLK	IRQ/CLK
Power-Fail Timestamp	Vcc Fail and Vcc Restore	Vcc Fail and Vcc Restore	Vcc Fail and Vcc Restore	Vcc Fail and Vcc Restore	Vcc Fail and Vcc Restore	Vcc Fail and Vcc Restore	Vcc Fail and Vcc Restore
Temperature Range	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85	-40 to +85
Unique ID, MAC_Address	EUI-64	EUI-64	EUI-64	EUI-64	EUI-64	EUI-64	EUI-64
User SRAM, Bytes	64	64	64	64	64	64	64
Vbat Range, В	1.3 - 5.5	1.3 - 5.5	1.3 - 5.5	1.3 - 5.5	1.3 - 5.5	1.3 - 5.5	1.3 - 5.5
Vcc Range, В	1.8 - 5.5	1.8 - 5.5	1.8 - 5.5	1.8 - 5.5	1.8 - 5.5	1.8 - 5.5	1.8 - 5.5

Экологический статус

Другие варианты исполнения

MCP79410 MCP79411

Модельный ряд

• MCP79412-I/MS MCP79412-I/SN MCP79412-I/ST MCP79412T-I/MNY MCP79412T-I/MS MCP79412T-I/SN MCP79412T-I/ST

Классификация производителя

• Clock and Timing > Real-Time Clock > RTCC

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