Datasheet Microchip MCP79402 | Manufacturer | Microchip | | Series | MCP79402 |
The MCP79402 general purpose I2CTM Compatible real-time clock/calendar (RTCC) is highly integrated with memory and advanced features normally found in higher priced devices Datasheets- Download » Datasheet, PDF, 886 Kb, 08-17-2016
MCP79400/01/02 Battery-Backed I2C RTCC w/ SRAM and Protected EEPROM
Docket ↓MCP79400/MCP79401/MCP79402
Battery-Backed I2C Real-Time Clock/Calendar with
SRAM and Protected EEPROM
Device Selection Table
Part Number Operating Ranges
Protected EEPROM MCP79400 Unprogrammed MCP79401 EUI-48в„ў MCP79402 EUI-64в„ў 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 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 battery backup: 925 nA at
3.0V Automatic Switchover to Battery Backup User Memory 64-Byte Battery-Backed SRAM 64-Bit Protected EEPROM Area: ...
PricesStatus | MCP79402-I/MS | MCP79402-I/SN | MCP79402-I/ST | MCP79402T-I/MNY | MCP79402T-I/MS | MCP79402T-I/SN | MCP79402T-I/ST |
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| Lifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) |
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PackagingParametrics | MCP79402-I/MS | MCP79402-I/SN | MCP79402-I/ST | MCP79402T-I/MNY | MCP79402T-I/MS | MCP79402T-I/SN | MCP79402T-I/ST |
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| 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) |
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| 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) |
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| Ibat Current, nA | 700 | 700 | 700 | 700 | 700 | 700 | 700 |
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| Interface | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ |
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| Operating Temperature Range, °C | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 |
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| Outputs | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK |
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| 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 |
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| Temperature Range | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 |
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| Unique ID, MAC_Address | EUI-64 | EUI-64 | EUI-64 | EUI-64 | EUI-64 | EUI-64 | EUI-64 |
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| User SRAM, Bytes | 64 | 64 | 64 | 64 | 64 | 64 | 64 |
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| Vbat Range, V | 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 |
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| Vcc Range, V | 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 |
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Eco PlanOther OptionsMCP79400 MCP79401 Moldel LineSeries: MCP79402 (7) Manufacturer's Classification- Clock and Timing > Real-Time Clock > RTCC
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