24AA128-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip 24AA128-I/P is a 128 Kbit I2C serial EEPROM in an 8-pin DIP package, supporting up to 400 kHz clock speed with 1,000,000 write/erase cycle endurance and 200-year data retention. Available in stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24AA128-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6768(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 24AA128-I/P?
- 128 Kbit (16 KB) I2C EEPROM with 400 kHz fast-mode operation for rapid read/write in microcontroller-based storage applications
- 1,000,000 write/erase cycle endurance with 200-year minimum data retention for reliable non-volatile storage in embedded systems
- 8-pin PDIP-8 through-hole package with I2C address bits (A0/A1) supporting up to 8 devices on a single 2-wire bus
What is 24AA128-I/P used for?
The 24AA128-I/P is widely used as a non-volatile configuration and calibration data store in microcontroller-based systems, including industrial sensors, medical instruments, and consumer electronics that require 128 Kbit of reliable I2C EEPROM storage. Its 400 kHz fast-mode I2C interface and 8-pin DIP package make it straightforward to prototype and integrate with any MCU platform using a simple 2-wire bus. With 1,000,000 erase cycles and 200-year data retention, it suits applications such as meter logging, network appliance parameter storage, and identification data in field-replaceable modules.
What are the specifications of 24AA128-I/P?
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 14Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDIP-T8 |
| 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 | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| 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 | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Where can I find the 24AA128-I/P datasheet?
24AA128-I/P Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 24AA128-I/P?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many devices can be connected to a single I2C bus using the 24AA128-I/P, and how are they addressed?
The 24AA128-I/P uses the I2C control byte 1010DDDR, where the two device address bits (A0 and A1) allow up to 4 unique 24AA128 devices on a single 2-wire bus. If combined with other I2C EEPROM variants sharing the same bus, the standard 7-bit I2C address space allows up to 8 total devices in the 1010xxx address range, providing up to 1 Mbit (128 KB) of addressable EEPROM storage on 2 wires.
What write endurance and data retention does the 24AA128-I/P guarantee for embedded logging applications?
The 24AA128-I/P is specified for 1,000,000 write/erase cycles per memory location and a minimum data retention time of 200 years at 25 degrees Celsius. For an embedded data logger writing a configuration block once per hour, the 1,000,000 cycle endurance provides approximately 114 years of reliable writes before wear-out, far exceeding the operational lifetime of most industrial or consumer equipment.
What is the maximum I2C clock speed supported by the 24AA128-I/P, and does it work with standard-mode I2C masters?
The 24AA128-I/P supports a maximum I2C clock frequency of 400 kHz, which qualifies it as a Fast Mode device per I2C specification. It is also backward compatible with 100 kHz standard-mode I2C masters, making it universally usable across virtually all microcontroller platforms including AVR, PIC, ARM Cortex-M, and ESP32 without any special configuration, and it operates from a supply voltage compatible with 3.3 V and 5 V systems.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9000 | $0.90 |
| 5+ | $0.8300 | $4.15 |
| 10+ | $0.7900 | $7.90 |
| 1000+ | $0.7400 | $740.00 |
| 1920+ | $0.6884 | $1321.79 |
| 3840+ | $0.6768 | $2598.84 |
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