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Microchip Technology 24AA014T-I/MS
- Part No.:
- 24AA014T-I/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24AA014T-I/MS.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,236
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Product details
Overview
24AA014T-I/MS from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory, operating from 1.7V to 5.5V with 400 kHz max clock frequency and hardware write protection via WP pin. It supports page writes up to 16 bytes, delivers 1 μA standby current (typical), and is rated for 1,000,000 erase/write cycles and >200 years data retention. It is used in embedded systems for storing calibration data, configuration settings, and firmware parameters.
For engineers reviewing the 24AA014T-I/MS datasheet, 24AA014T-I/MS pinout, 24AA014T-I/MS application, or 24AA014T-I/MS equivalent, key selection considerations include its 1.7V low-voltage operation, MSOP-8 package footprint, industrial temperature range (–40°C to +85°C), and I²C bus compatibility with 100/400 kHz modes.
Technical Context
The 24AA014T-I/MS implements a standard two-wire I²C interface with slave addressing using A0–A2 pins, supporting up to eight devices on one bus. Its internal architecture includes an address pointer, page write buffer, and HV generator for EEPROM programming.
It uses Schmitt-trigger inputs on SDA/SCL for noise immunity, features auto-erase during self-timed write cycles (≤5 ms), and enforces hardware write protection when WP = VCC. The device operates across 1.7V–5.5V with full 400 kHz speed only at VCC ≥ 1.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit), single-block organization - simplifies address management and eliminates bank switching logic. |
| Supply voltage | 1.7V to 5.5V - enables direct interfacing with low-power microcontrollers and battery-powered systems without level shifting. |
| Max clock frequency | 400 kHz (at VCC ≥ 1.8V); 100 kHz (at 1.7V ≤ VCC < 1.8V) - defines maximum I²C throughput and timing margin requirements. |
| Write endurance | 1,000,000 erase/write cycles - ensures long-term reliability in frequent-update applications like event logging or parameter tuning. |
| Data retention | >200 years at 25°C - guarantees nonvolatile storage integrity over product lifetime without refresh. |
| Standby current | 1 μA typical at 5.5V - minimizes quiescent power draw in always-on or sleep-mode systems. |
| Page write capacity | Up to 16 bytes per write cycle - reduces I²C transaction overhead and improves bulk data update efficiency. |
Pinout & Package
24AA014T-I/MS is housed in an 8-lead MSOP package (3.0 mm × 3.0 mm × 1.0 mm height), RoHS-compliant and Pb-free, optimized for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip address input | LSB of 3-bit hardware slave address; sets device ID on shared I²C bus (must be hard-wired to VSS or VCC). |
| A1 | Chip address input | Middle bit of slave address; enables up to eight unique addresses when combined with A0 and A2. |
| A2 | Chip address input | MSB of slave address; required for full 8-device bus expansion (not available in SOT-23 variant). |
| VSS | Ground reference | System ground return path for all internal circuitry and I/O signals. |
| SDA | Serial data I/O | Open-drain bidirectional bus line; requires external pull-up resistor (2 kΩ for 400 kHz, 10 kΩ for 100 kHz). |
| SCL | Serial clock input | Master-generated clock synchronizing all read/write transfers; Schmitt-trigger input improves noise immunity. |
| WP | Hardware write-protect | Active-high enable: tied to VCC disables all writes while preserving read functionality - prevents accidental firmware corruption. |
| VCC | Power supply | Primary power rail (1.7–5.5V); powers EEPROM core, interface logic, and charge pump for write operations. |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 1.7V - supports direct integration with 1.8V/2.5V microcontrollers and energy-harvesting systems. |
| I²C bus compatibility | Fully compliant with standard and fast-mode I²C protocols (100/400 kHz) - ensures interoperability with broad range of host controllers. |
| Hardware write protection | Dedicated WP pin enables system-level firmware lockout without software intervention - critical for safety-critical or certified designs. |
| Page write buffer | 16-byte internal buffer allows burst writes within one I²C transaction - cuts bus traffic by up to 94% vs. byte-by-byte writes. |
| Extended data retention | >200 years at 25°C - exceeds typical product lifecycle requirements, eliminating need for periodic data refresh or backup. |
Applications
| Industrial Sensor Calibration | Consumer Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and temperature compensation tables in smart pressure or humidity sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during power-up or sensor initialization via I²C. Use Value: Enables plug-and-play accuracy without host MCU reprogramming; retains values across power cycles and field updates. |
Use Scenario: Saving user preferences (volume, display brightness, language) and device state (last channel, pairing ID) in Bluetooth speakers or smart remotes. IC Role / Device Role / Timing Role: Persistent parameter storage with fast random-read access during boot or mode change. Use Value: Delivers instant user experience restoration; 1.7V operation allows retention during brown-out conditions. |
| Medical Diagnostic Equipment | Automotive Body Control Module |
Use Scenario: Recording usage logs, error codes, and calibration history in portable ECG monitors or glucose meters. IC Role / Device Role / Timing Role: Reliable event logging storage with high endurance for repeated timestamped writes. Use Value: Supports FDA-required traceability; 1M-cycle rating handles daily diagnostics over 10+ years. |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in automotive interior control units. IC Role / Device Role / Timing Role: Industrial-grade nonvolatile memory interfaced to body controller MCU over I²C bus. Use Value: Qualified for –40°C to +85°C operation; hardware WP prevents accidental overwrite during CAN/LIN firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC014T-I/MS | Requires minimum 2.5V VCC; identical pinout, memory map, and I²C protocol - differs only in voltage range. | Not suitable for sub-2.5V systems; otherwise drop-in in industrial temperature designs. | Select when system VCC is guaranteed ≥2.5V and legacy 24LC part compatibility is required. |
| AT24C01D-MAHM-T | 1 Kbit I²C EEPROM in 8-lead MSOP; supports 1.7–5.5V, but rated for only 100 kHz max clock and 100k endurance cycles. | Limited bandwidth and lower endurance make it unsuitable for high-frequency logging or long-life medical use. | Choose only for cost-sensitive, low-update-rate applications where 400 kHz and 1M cycles are not required. |
Compared with 24LC014T-I/MS, the 24AA014T-I/MS enables true low-voltage operation down to 1.7V, while AT24C01D-MAHM-T trades speed and endurance for lower cost - making the 24AA014T-I/MS optimal for battery-powered, high-reliability, or wide-VCC designs.
Availability
24AA014T-I/MS is available at Aetrix Electronics and suitable for industrial sensor calibration, consumer device configuration, medical diagnostic equipment, and automotive body control modules requiring stable component supply, long-term obsolescence planning, and RoHS-compliant sourcing.
Supply support for 24AA014T-I/MS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontroller, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, serving industrial, automotive, and consumer markets globally.
The 24AA014T-I/MS belongs to Microchip's 24AAxx family of I²C EEPROMs, designed specifically for robust, low-power, and voltage-flexible nonvolatile storage in resource-constrained embedded systems.
FAQ
What is the minimum operating voltage for the 24AA014T-I/MS?
The 24AA014T-I/MS operates down to 1.7V, enabling direct use with 1.8V logic families and battery-powered systems experiencing voltage sag. This is a key differentiator from the 24LC014T-I/MS, which requires a minimum of 2.5V. The 24AA014T-I/MS maintains full 400 kHz I²C functionality above 1.8V and degrades gracefully to 100 kHz between 1.7V and 1.8V.
Does the 24AA014T-I/MS support page writes, and what is the buffer size?
Yes, the 24AA014T-I/MS supports page writes with a 16-byte internal buffer. This allows up to 16 sequential bytes to be written in a single I²C transaction, significantly reducing bus overhead compared to byte-write operations. Page boundaries align to 16-byte intervals (addresses 0x00–0x0F, 0x10–0x1F, etc.), and crossing a boundary causes wraparound within the same page.
How does hardware write protection work on the 24AA014T-I/MS?
The 24AA014T-I/MS uses the WP pin for hardware write protection: when tied to VCC, all write operations (byte and page) are inhibited while read operations remain fully functional. This provides fail-safe protection against accidental firmware or configuration corruption during system updates or power transients - a critical feature for certified medical or industrial equipment.
What is the endurance and data retention specification for the 24AA014T-I/MS?
The 24AA014T-I/MS is rated for 1,000,000 erase/write cycles and >200 years of data retention at 25°C. These specifications are characterized and ensured per Microchip's Total Endurance™ model. Real-world retention remains >100 years even at +85°C ambient, making it suitable for infrastructure and medical devices with multi-decade service life requirements.
Which packages are available for the 24AA014T-I/MS, and what does the 'T' suffix indicate?
The 24AA014T-I/MS is supplied in an 8-lead MSOP package (3.0 × 3.0 mm). The 'T' in the part number denotes tape-and-reel packaging for automated SMT assembly, while 'I' specifies industrial temperature grade (–40°C to +85°C). This variant is RoHS-compliant and Pb-free, with markings including '4A14T' and date code per Microchip's standard marking convention.
24AA014T-I/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
24AA014T-I/MS FAQ
1.How can I place an order for 24AA014T-I/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24AA014T-I/MS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 24AA014T-I/MS reliable?
The price and inventory of 24AA014T-I/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24AA014T-I/MS is usually 5 days.
3.What payment methods are accepted for 24AA014T-I/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA014T-I/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24AA014T-I/MS?
24AA014T-I/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24AA014T-I/MS order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 24AA014T-I/MS?
For technical support, including 24AA014T-I/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA014T-I/MS requirements.
6.How does Aetrix verify that 24AA014T-I/MS is sourced from the original manufacturer or authorized distributors?
All 24AA014T-I/MS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 24AA014T-I/MS meets industry standards.
7.What is the process for return or replacement of 24AA014T-I/MS?
All 24AA014T-I/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24AA014T-I/MS, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 24AA014T-I/MS part is unused and in its original packaging.
Return procedure for 24AA014T-I/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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