24FC128-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
24FC128-I/SN is a Microchip 128 Kbit I2C EEPROM in an 8-pin SOIC package, supporting 1.7 V to 5.5 V supply voltage with up to 1 MHz clock frequency and 1,000,000 write/erase cycle endurance. It offers 200-year data retention for reliable non-volatile storage in embedded systems.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24FC128-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3550(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide supply voltage range from 1.7 V to 5.5 V enables operation across 1.8 V, 3.3 V, and 5 V system platforms without level shifting
- Up to 1 MHz I2C clock frequency supports fast data access in high-throughput embedded applications with minimal firmware overhead
- 1,000,000 write/erase cycle endurance and 200-year data retention guarantee long-term reliability in industrial and consumer products
Applications
The 24FC128-I/SN is widely used in microcontroller-based systems for storing configuration parameters, calibration data, and firmware settings that must persist through power cycles. Its I2C interface and 128 Kbit capacity make it ideal for IoT sensor nodes, industrial measurement instruments, and consumer electronics where compact non-volatile memory is required. The wide supply voltage range of 1.7 V to 5.5 V allows direct integration into both 3.3 V and 5 V designs without additional voltage translation circuitry.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 14Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 131072bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 16384words |
| Number of Words Code | 16000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 16KX8 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 2.5V |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000005A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 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 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Mainland China, Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24FC128-I/SN:
suggested
suggested
suggested
suggested
suggested
suggested
suggested
suggested
suggested
Frequently Asked Questions
What voltage range does 24FC128-I/SN support and can it interface directly with 3.3 V microcontrollers?
The 24FC128-I/SN supports a supply voltage range of 1.7 V to 5.5 V, which means it can interface directly with 1.8 V, 3.3 V, and 5 V microcontrollers without level-shifting circuitry. This wide range simplifies integration in mixed-voltage embedded systems such as IoT nodes, wearable devices, and industrial sensors.
How many write cycles can 24FC128-I/SN handle before wear-out becomes a concern?
The 24FC128-I/SN is rated for 1,000,000 write/erase cycles per byte location, which is sufficient for most embedded applications that update configuration or calibration data infrequently. For applications requiring millions of frequent writes per day, designers should consider wear-leveling techniques or an alternative NOR flash memory device.
What is the maximum I2C clock frequency of 24FC128-I/SN and how does it affect data transfer speed?
The 24FC128-I/SN supports a maximum I2C clock frequency of 1 MHz (Fast Mode Plus), enabling transfer of 128 Kbit of data in approximately 128 ms at full clock rate. This throughput is adequate for configuration loading at boot time and periodic data logging in microcontroller-based systems without impacting application responsiveness.
Related Guides
150141RS73100 Red LED Indicator and Current-Resistor Design Guide
Design a reliable 150141RS73100 red LED indicator with worst-case resistor sizing, GPIO checks, PWM drive, layout, and production validation.
Jul 11, 2026
742792651 Ferrite Bead EMI Filter and Power Integrity Design Guide
Practical guidance for using 742792651 in ferrite-bead EMI filters, including bias, DCR, damping, layout, and validation.
Jul 11, 2026
How to Choose a Ferrite Bead for EMI Suppression Rails: Selection Guide
Compare 742792651 and related ferrite beads by impedance, current rating, DCR, package, layout, and EMI test context.
Jul 10, 2026
150141BS73100 Design Guide for 3528 Status Indicator LED Circuits
Design 3528 status indicator LED circuits with 150141BS73100: current setting, resistor sizing, polarity, optics, and sourcing checks.
Jul 10, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4600 | $0.46 |
| 25+ | $0.4500 | $11.25 |
| 100+ | $0.3971 | $39.71 |
| 500+ | $0.3650 | $182.50 |
| 1000+ | $0.3600 | $360.00 |
| 2000+ | $0.3550 | $710.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”