MCP79410-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP79410 is an I2C real-time clock/calendar IC with 1 Kb EEPROM, 64 bytes battery-backed SRAM, unique ID, and interrupt output in an SOIC-8 package. Operates from 1.8 V for ultra-low-power timekeeping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP79410-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9100(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP79410-I/SN?
- I2C real-time clock/calendar with 1 Kb EEPROM and 64-byte battery-backed SRAM for non-volatile parameter storage alongside timekeeping
- Pre-programmed 64-bit unique ID enables plug-and-play board identification without external EEPROM or software-assigned addresses
- 1.8 V operation at 100 kHz I2C enables direct integration with low-voltage MCUs and coin-cell battery backup systems
What is MCP79410-I/SN used for?
The MCP79410 is used in data-loggers, industrial controllers, and smart-metering nodes that need accurate real-time timekeeping alongside on-chip non-volatile storage for configuration parameters. Its built-in 64-bit unique ID simplifies board serialization in IoT deployments, replacing a separate ID EEPROM and saving one I2C device address. Battery-backup alarm clocks and event schedulers in home-automation panels also rely on its interrupt output to wake a host MCU from deep sleep at scheduled times.
What are the specifications of MCP79410-I/SN?
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL |
| Clock Frequency-Max | 0.032MHz |
| Information Access Method | SERIAL(I2C) |
| Interrupt Capability | Y |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| On Chip Data RAM Width | 8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (words) | 64 |
| Screening Level | TS 16949 |
| Supply Current-Max | 3mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 1.8V |
| Supply Voltage-Nom | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time-Min | SECONDS |
| Volatile | NO |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK |
| ## MCP79410-I/SN Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP79410-I/SN datasheet?
MCP79410-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP79410-I/SN?
Compatible alternatives and drop-in replacements for MCP79410-I/SN:
Frequently Asked Questions
How much non-volatile storage does the MCP79410 integrate, and what is it used for in typical designs?
The MCP79410 integrates 1 Kb (128 bytes) of I2C EEPROM for storing calibration values and configuration data, plus 64 bytes of battery-backed SRAM that retains data across power cycles. Together they eliminate a separate EEPROM device, saving one I2C bus address and 50 mm² of board area.
What is the minimum supply voltage for the MCP79410, and how does that affect coin-cell backup circuit design?
The MCP79410 operates from 1.8 V, allowing it to run directly from a CR2032 coin cell (3 V nominal, 2 V end-of-life) as its backup source. The wide 1.8 V minimum eliminates the need for a voltage supervisor IC, simplifying the VCC-to-VBAT switchover circuit to a single diode-OR network.
How does the integrated 64-bit unique ID on the MCP79410 simplify IoT device provisioning?
The MCP79410 ships with a factory-programmed 64-bit EUI-64 compatible unique ID accessible over I2C without any write operations. This removes the provisioning step of burning serial numbers during PCB assembly, reducing production test time by approximately 5–10 seconds per board in high-volume IoT manufacturing lines.
In what temperature range does the MCP79410 maintain timekeeping accuracy for industrial deployments?
The MCP79410 is rated for -40°C to 85°C extended industrial temperature operation, with a typical crystal frequency stability better than ±5 ppm at 25°C when paired with a standard 32.768 kHz crystal. Over a full -40°C to 85°C range the error accumulates to less than 1 minute per month, acceptable for data-logger timestamp applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0400 | $1.04 |
| 25+ | $0.9530 | $23.82 |
| 100+ | $0.9100 | $91.00 |
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