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Microchip Technology 24AA014-I/SN
- Part No.:
- 24AA014-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24AA014-I/SN.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:910
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Product details
Overview
24AA014-I/SN from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with hardware write protection, operating from 1.7V to 5.5V, supporting up to 400 kHz clock rate at VCC ≥ 1.8V, and rated for industrial temperature range (–40°C to +85°C). It features 16-byte page write buffer, 1 µA standby current, and 1,000,000 erase/write cycles - used for nonvolatile configuration storage in microcontroller-based systems.
For engineers reviewing the 24AA014-I/SN datasheet, 24AA014-I/SN pinout, 24AA014-I/SN application, or 24AA014-I/SN equivalent, key selection criteria include low-voltage operation down to 1.7V, I²C bus compatibility with addressable multi-device topology (up to eight devices), hardware WP pin control, and SOIC-8 packaging with Pb-free RoHS compliance.
Technical Context
The 24AA014-I/SN implements a two-wire I²C interface with slave addressing via A0–A2 pins, supporting standard-mode (100 kHz) and fast-mode (400 kHz) timing. Its internal architecture includes an on-chip page buffer (16 bytes), auto-erase logic, and self-timed write cycle with ≤5 ms duration.
Hardware write protection is implemented via the dedicated WP pin: tied to VSS, writes are enabled; tied to VCC, the entire 128-byte array is locked. The device uses Schmitt-trigger inputs on SDA/SCL for noise immunity and supports acknowledge polling to detect write completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8-bit array), sufficient for firmware calibration data or device ID storage |
| VCC range | 1.7V to 5.5V - enables direct interfacing with 1.8V, 3.3V, and 5V logic domains without level shifters |
| Max I²C clock | 400 kHz (≥1.8V); 100 kHz (<1.8V) - balances speed and power in battery-powered systems |
| Write endurance | 1,000,000 cycles - supports frequent parameter updates in industrial logging applications |
| Data retention | 200 years at 25°C - ensures long-term reliability in unattended embedded deployments |
| Standby current | 1 µA typical at 5.5V - critical for ultra-low-power wake-on-event designs |
| Page write size | Up to 16 bytes per write cycle - reduces I²C transaction overhead vs. byte-wise writes |
Pinout & Package
24AA014-I/SN is supplied in an 8-lead SOIC (Small Outline Integrated Circuit) package, 150 mil width, RoHS-compliant and Pb-free. Pin 1 is marked by laser indentation; body marking includes "24AA014I" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip address input | LSB of 3-bit slave address; hardwired to VSS or VCC to configure device address on shared I²C bus |
| A1 | Chip address input | Middle bit of slave address; enables up to eight unique addresses (0x50–0x57) on same bus |
| A2 | Chip address input | MSB of slave address; required for full 8-device addressing; not present in SOT-23 variant |
| VSS | Ground reference | Return path for all internal circuitry; must be connected to system ground plane |
| SDA | Serial data I/O | Open-drain bidirectional line requiring external pull-up (2 kΩ for 400 kHz); carries address, data, and ACK/NACK |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input improves noise margin |
| WP | Write-protect control | Active-high hardware lock: tied to VCC disables all writes while permitting reads |
| VCC | Power supply | Single 1.7–5.5V supply; powers EEPROM core, interface logic, and HV generator for write operations |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 1.7V - supports direct integration with 1.8V microcontrollers and energy-harvesting systems |
| I²C address flexibility | Three hardware address pins (A0–A2) allow eight unique slave addresses on one bus - simplifies multi-sensor node design |
| Page write capability | 16-byte buffer reduces I²C bus occupancy by ~85% vs. sequential byte writes - improves real-time system responsiveness |
| Hardware write protection | Dedicated WP pin provides immediate, glitch-immune lockout of memory writes - prevents accidental corruption during firmware updates |
| High endurance & retention | 1M write cycles and 200-year data retention - validated for use in medical devices and industrial controllers with 10+ year lifespans |
Applications
| Industrial Sensor Calibration | Consumer Device Configuration |
|---|---|
|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients in a temperature/humidity sensor module. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed once at power-up via I²C; no timing-critical interaction during runtime. Use Value: Enables plug-and-play accuracy without host MCU reprogramming; WP pin prevents field overwrite during sensor replacement. |
Use Scenario: Saving user preferences (volume, display brightness, language) in a smart speaker after each change. IC Role / Device Role / Timing Role: Low-power background storage; writes occur infrequently and only after explicit user action. Use Value: 1 µA standby current extends battery life in portable variants; 16-byte page write minimizes I²C bus contention during save events. |
| Medical Diagnostic Equipment | Automotive Body Control Module |
|
Use Scenario: Retaining diagnostic fault logs and usage counters in a portable ECG monitor. IC Role / Device Role / Timing Role: Reliable event-logging memory; writes triggered by interrupt-driven fault detection routines. Use Value: 1M endurance supports >10 years of daily diagnostics; 200-year data retention ensures audit trail integrity across product lifecycle. |
Use Scenario: Storing seat position presets and mirror calibration in a vehicle's door module. IC Role / Device Role / Timing Role: I²C slave on LIN-to-I²C bridge; accessed during ignition-on initialization sequence. Use Value: 1.7V operation tolerates cold-cranking voltage dips; hardware WP prevents corruption during battery jump-start transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC014-I/SN | Requires minimum 2.5V VCC; identical pinout, memory size, and I²C protocol | Not suitable for 1.8V-only systems; otherwise drop-in for 3.3V/5V designs with no layout change | Select 24LC014-I/SN only if system VCC never falls below 2.5V - avoids unnecessary derating of 24AA014-I/SN's 1.7V capability |
| AT24C01D-SSHM-T | 1 Kbit I²C EEPROM (128 × 8), 1.7–5.5V, but uses different slave address map (0x50–0x57 vs. 0x50–0x57) and lacks WP pin | Requires software write-protection implementation; no hardware lockout for critical configuration blocks | Choose AT24C01D-SSHM-T only when WP functionality is unnecessary and second-source assurance is prioritized over hardware safety |
Compared with 24LC014-I/SN, the 24AA014-I/SN enables lower-voltage operation critical for modern mixed-signal systems, while the AT24C01D-SSHM-T trades hardware write protection for broader distributor availability - making 24AA014-I/SN optimal for safety-aware, low-power designs where guaranteed write lockout is mandatory.
Availability
24AA014-I/SN is available at Aetrix Electronics and suitable for industrial sensor calibration, consumer device configuration, and medical diagnostic equipment requiring stable component supply across extended production lifecycles.
Supply support for 24AA014-I/SN 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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global manufacturing and support infrastructure.
The 24AA014-I/SN belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, low-power embedded systems requiring robust nonvolatile storage with minimal board space and interface complexity.
FAQ
What is the minimum operating voltage for the 24AA014-I/SN?
The 24AA014-I/SN operates down to 1.7V, enabling direct use with 1.8V microcontrollers and low-power systems where supply rails dip during battery discharge or cold-cranking. This specification is verified across the full industrial temperature range (–40°C to +85°C) and distinguishes it from the 24LC014-I/SN, which requires ≥2.5V.
Does the 24AA014-I/SN support multi-device I²C bus configurations?
Yes, the 24AA014-I/SN supports up to eight devices on a single I²C bus using its A0, A1, and A2 address pins to configure unique 7-bit slave addresses (0x50–0x57). Each pin must be hardwired to VSS or VCC; floating connections are not permitted and will cause unpredictable addressing behavior.
How does hardware write protection work on the 24AA014-I/SN?
The 24AA014-I/SN uses a dedicated WP (Write-Protect) pin: when tied to VCC, all write operations to the 128-byte memory array are inhibited, while read operations remain fully functional. When tied to VSS, writes are enabled. This pin provides immediate, hardware-level lockout independent of firmware state.
What is the maximum I²C clock frequency supported by the 24AA014-I/SN?
The 24AA014-I/SN supports up to 400 kHz I²C clock frequency when VCC is ≥1.8V. At VCC < 1.8V, the maximum clock rate is limited to 100 kHz. These timing specifications are guaranteed across the full industrial temperature range and include setup/hold margins for reliable communication.
Can the 24AA014-I/SN be used in automotive applications?
The 24AA014-I/SN is rated for industrial temperature (–40°C to +85°C), not automotive grade (–40°C to +125°C). For automotive body control modules or infotainment systems requiring extended temperature operation, Microchip's 24AA014-E/SN (automotive-grade variant) must be selected instead - it shares identical functionality but is qualified to AEC-Q100 Grade 3.
24AA014-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- 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-SOIC
24AA014-I/SN FAQ
1.How can I place an order for 24AA014-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24AA014-I/SN 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 24AA014-I/SN reliable?
The price and inventory of 24AA014-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24AA014-I/SN is usually 5 days.
3.What payment methods are accepted for 24AA014-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA014-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24AA014-I/SN?
24AA014-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24AA014-I/SN 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 24AA014-I/SN?
For technical support, including 24AA014-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA014-I/SN requirements.
6.How does Aetrix verify that 24AA014-I/SN is sourced from the original manufacturer or authorized distributors?
All 24AA014-I/SN 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 24AA014-I/SN meets industry standards.
7.What is the process for return or replacement of 24AA014-I/SN?
All 24AA014-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24AA014-I/SN, 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 24AA014-I/SN part is unused and in its original packaging.
Return procedure for 24AA014-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24AA014-I/SN Tags
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