MCP79412T-I/MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MCP79412T-I/MNY is an I2C real-time clock IC with 1 Kb EEPROM, 64-byte SRAM, and EUI-64 node address. It supports clock frequencies up to 32.768 kHz and operates at 1.8 V nominal. Available in an 8-pin TDFN package with 6-week lead time.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP79412T-I/MNY Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4670(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 MCP79412T-I/MNY?
- I2C serial interface supporting 100 kHz and 400 kHz modes at 1.8 V nominal operation
- Integrated 1 Kb EEPROM for user data and 64-byte battery-backed SRAM for time-critical storage
- EUI-64 node address for unique network identification in IoT and communication designs
- Interrupt output with alarm capability for time-triggered events and low-power wake-up
What is MCP79412T-I/MNY used for?
The MCP79412T-I/MNY is suited for IoT sensor nodes requiring precise timekeeping with minimal board area in 8-pin TDFN packages. It fits battery-backed data loggers and industrial equipment needing persistent timestamps across 1.8 V power domains. Its EUI-64 address simplifies unique device identification in networked embedded systems.
What are the specifications of MCP79412T-I/MNY?
| Manufacturer Package Code | TDFN-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| 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-N8 |
| JESD-609 Code | e4 |
| On Chip Data RAM Width | 8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.11,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| 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 | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time-Min | SECONDS |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Volatile | NO |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP79412T-I/MNY datasheet?
MCP79412T-I/MNY Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP79412T-I/MNY?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage does the MCP79412T-I/MNY require, and can it run from a coin-cell backup?
The MCP79412T-I/MNY operates at a 1.8 V nominal supply and is also specified to run at 100 kHz I2C speed at that voltage. A separate VBAT pin allows a coin-cell battery to maintain timekeeping when primary power is removed, making it ideal for 8-pin TDFN designs with continuous clock operation.
How much non-volatile storage does the MCP79412T-I/MNY provide for user configuration data?
The device integrates 1 Kb of EEPROM accessible over the I2C bus for storing user configuration or calibration data, plus 64 bytes of battery-backed SRAM. This combination lets embedded systems preserve both persistent settings and time-stamped runtime state within a single 8-pin component.
When is MCP79412T-I/MNY preferred over a standalone RTC without an EUI-64 node address?
The MCP79412T-I/MNY is preferred in networked IoT and industrial designs where each node requires a unique 64-bit hardware identifier. The pre-programmed EUI-64 address eliminates the need for external EEPROM or firmware-generated IDs, reducing BOM cost and board space while simplifying network stack integration at 1.8 V to 5.5 V supply levels.
What package does the MCP79412T-I/MNY use, and how does it benefit compact PCB layouts?
It comes in an 8-pin TDFN (small outline no-lead) package with a compact footprint, enabling high-density PCB layouts where space is constrained. The exposed thermal pad and leadless construction improve thermal dissipation and reduce parasitic inductance compared to leaded packages, supporting designs targeting less than 10 mm² area.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2300 | $1.23 |
| 50+ | $1.2100 | $60.50 |
| 100+ | $1.0700 | $107.00 |
| 500+ | $0.4829 | $241.45 |
| 1000+ | $0.4750 | $475.00 |
| 3000+ | $0.4670 | $1401.00 |
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