MCP79410T-I/MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
The MCP79410T-I/MNY is a real-time clock (RTC) IC from Microchip with I2C serial interface, battery backup, and 64-byte SRAM in a compact 8-pin TDFN package. It operates at 32.768 kHz, supports 100 kHz I2C at 1.8V, and includes interrupt output for alarm functions. Suitable for data loggers, IoT devices, and consumer electronics requiring accurate timekeeping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP79410T-I/MNY Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9000(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 MCP79410T-I/MNY?
- Real-time clock with 32.768 kHz crystal oscillator and battery backup
- I2C serial interface operating at 100 kHz from 1.8V supply
- 64-byte battery-backed SRAM for non-volatile data storage
- Interrupt output for configurable alarm and timer events
- 8-pin TDFN package (3x2 mm) for ultra-compact designs
- Operates down to 1.8V nominal for low-voltage systems
What is MCP79410T-I/MNY used for?
The MCP79410T-I/MNY is designed for portable and IoT devices that require accurate timekeeping across power cycles using a backup battery or supercapacitor. Its 64-byte SRAM and I2C interface make it easy to log timestamps and short records directly on the RTC without an external memory chip. Industrial data loggers, smart meters, and wearable health monitors benefit from its compact TDFN footprint and low 1.8V operation.
What are the specifications of MCP79410T-I/MNY?
| Manufacturer Package Code | TDFN-8 |
| Factory Lead Time | 6Weeks |
| 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-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 MCP79410T-I/MNY datasheet?
MCP79410T-I/MNY Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP79410T-I/MNY?
Compatible alternatives and drop-in replacements for MCP79410T-I/MNY:
suggested
suggested
suggested
Frequently Asked Questions
What I2C clock speed does the MCP79410T-I/MNY support at its minimum operating voltage?
The MCP79410T-I/MNY supports I2C communication at 100 kHz when powered at 1.8V nominal supply, making it compatible with low-voltage microcontrollers such as the PIC16LF and AVR families. At higher supply voltages the interface also supports 400 kHz fast-mode, enabling faster register access during burst reads of the 64-byte SRAM.
How much on-chip RAM does the MCP79410T-I/MNY provide, and can it retain data during a power outage?
The MCP79410T-I/MNY includes 64 bytes of battery-backed SRAM that retains data when the main supply is removed. This is sufficient to store 16 four-byte timestamps or calibration coefficients, eliminating the need for a separate non-volatile memory in cost-sensitive data logger designs.
For a compact wearable design, how small is the MCP79410T-I/MNY package and what backup supply does it require?
The MCP79410T-I/MNY is housed in an 8-pin TDFN package measuring approximately 3x2 mm, one of the smallest RTC footprints available. It accepts a backup supply from a coin cell (e.g., 3V CR2032) or a small supercapacitor to maintain timekeeping and SRAM retention at 32.768 kHz oscillator frequency when the main 1.8V to 5.5V rail is off.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1566 | $1.16 |
| 10+ | $1.1376 | $11.38 |
| 25+ | $1.1186 | $27.96 |
| 100+ | $1.0000 | $100.00 |
| 1000+ | $0.9300 | $930.00 |
| 5000+ | $0.9000 | $4500.00 |
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