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Microchip Technology AT24C04A-10TI-2.7
- Part No.:
- AT24C04A-10TI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C04A-10TI-2.7.pdf
- Description:
- IC EEPROM 4KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,844
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Product details
Overview
AT24C04A-10TI-2.7 from Microchip Technology (formerly Atmel) is a 4-kbit I²C-compatible serial EEPROM with 512 × 8-bit organization, 2.7V to 5.5V supply range, 400 kHz max clock rate at 2.7V+, and write-protect pin for hardware data protection. It operates across −40°C to +85°C and supports partial page writes in 16-byte pages.
For engineers reviewing the AT24C04A-10TI-2.7 datasheet, AT24C04A-10TI-2.7 pinout, AT24C04A-10TI-2.7 application, or AT24C04A-10TI-2.7 equivalent, key selection factors include its automotive-grade temperature rating, TSSOP-8 package, 100-year data retention, 1 million write cycles, and compatibility with microcontroller-based embedded systems requiring nonvolatile parameter storage.
Technical Context
The AT24C04A-10TI-2.7 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA/SCL inputs and supports standard-mode (100 kHz) and fast-mode (400 kHz) operation depending on VCC level. Its internal address counter enables current-address, random-address, and sequential read modes.
Hardware write protection is enforced via the WP pin: tied to VCC, it locks the upper 2K bits; tied to GND, full read/write access is enabled. Device addressing uses A2/A1 pins (A0 is NC), allowing up to four AT24C04A devices on one bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4096 bits (512 × 8), organized as 32 pages of 16 bytes each |
| Supply Voltage Range | 2.7V to 5.5V - supports direct interfacing with 3.3V and 5V logic without level shifters |
| Max Clock Frequency | 400 kHz at VCC ≥ 2.7V - enables faster firmware updates and configuration writes |
| Write Cycle Time | 5 ms maximum - defines minimum interval between successive write commands |
| Data Retention | 100 years - ensures long-term reliability in unpowered storage applications |
| Endurance | 1 million write cycles - suitable for frequent calibration or logging use cases |
| Operating Temperature | −40°C to +85°C - qualified for industrial and automotive under-hood environments |
| Interface Protocol | Two-wire I²C - reduces PCB routing complexity vs. SPI and enables multi-device bus sharing |
Pinout & Package
AT24C04A-10TI-2.7 is supplied in an 8-lead TSSOP (Thin Shrink Small Outline Package) with 4.4 mm body width, lead pitch of 0.65 mm, and JEDEC-compliant footprint (package code 8A2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect (NC) | Not bonded internally; must be left floating or grounded - no device addressing function |
| A1, A2 | Device Address Inputs | Hardwired to set 2-bit portion of 7-bit I²C slave address; enables up to four AT24C04A devices on same bus |
| GND | Ground Reference | Return path for all internal circuitry and I/O; requires low-impedance connection to system ground plane |
| VCC | Power Supply Input | Accepts 2.7–5.5V; bypass capacitor (0.1 µF ceramic) recommended near pin for noise suppression |
| WP | Write Protect Control | Active-high hardware lock: VCC = upper 2K protected; GND = full read/write access |
| SCL | Serial Clock Input | Positive-edge sampled clock for I²C timing; requires external pull-up resistor (typically 2.2–10 kΩ) |
| SDA | Serial Data Bidirectional | Open-drain I/O shared across bus; requires external pull-up; supports wire-OR with other I²C devices |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin enables selective locking of upper 2K memory block without software overhead or firmware dependency |
| Low-Voltage Operation | 2.7V minimum VCC allows direct integration into battery-powered or energy-harvesting systems with minimal regulation |
| Page Write Capability | 16-byte page writes reduce I²C transaction count and total programming time versus byte-by-byte writes |
| Noise-Resilient Inputs | Schmitt-trigger + filtering on SDA/SCL suppresses EMI-induced glitches in electrically noisy industrial environments |
| High Endurance & Retention | 1M write cycles and 100-year data retention meet long-lifecycle requirements for medical, metering, and infrastructure equipment |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables for analog sensor front-ends. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during power-on initialization and runtime correction routines. Use Value: Enables field-replaceable sensors without recalibration; retains values across 10+ year product lifetimes and repeated power cycles. | Use Scenario: Saving user preferences (mirror position, seat settings, lighting profiles) and fault logs in vehicle body control units. IC Role / Device Role / Timing Role: I²C-connected parameter memory supporting infrequent writes and frequent reads during vehicle startup and operation. Use Value: Survives automotive temperature extremes (−40°C to +85°C) and meets AEC-Q100 stress requirements for reliability-critical subsystems. |
| Smart Energy Metering | Medical Diagnostic Equipment |
Use Scenario: Recording tariff schedules, billing cycle counters, tamper events, and firmware update flags in utility meters. IC Role / Device Role / Timing Role: Secure, low-power EEPROM interfaced to metrology SoC via I²C; WP pin prevents accidental overwrites during firmware updates. Use Value: Guarantees regulatory compliance data integrity over 20+ years of field deployment with >1M write cycles for event logging. | Use Scenario: Storing device-specific calibration constants, usage history, and safety-critical configuration parameters in portable ultrasound or ECG units. IC Role / Device Role / Timing Role: Fail-safe nonvolatile memory accessed during boot and diagnostics; isolated from main processor via dedicated I²C bus segment. Use Value: Meets IEC 62304 Class C software safety requirements through guaranteed data retention and write-cycle endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C04-RMN6TP | 4K I²C EEPROM, 1.7–5.5V supply, 400 kHz max, SO8 package (not TSSOP) | Lacks automotive temp grade (−40°C to +85°C); rated only to +85°C industrial | Select if SOIC-8 footprint is preferred and extended temperature is not required |
| BR24G04NUX-10 | 4K I²C EEPROM, 1.6–5.5V, 1 MHz max clock, 1.5 ms write cycle, TSSOP-8 | Higher speed and lower write latency but lacks hardware WP pin and automotive qualification | Choose when faster configuration loading is critical and hardware write lock is managed in firmware |
Compared with M24C04-RMN6TP and BR24G04NUX-10, the AT24C04A-10TI-2.7 uniquely combines TSSOP-8 packaging, automotive temperature range, hardware write protection, and Microchip's long-term supply commitment-making it optimal for safety- and reliability-sensitive embedded designs.
Availability
AT24C04A-10TI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, and smart energy metering requiring stable component supply across extended product lifecycles.
Supply support for AT24C04A-10TI-2.7 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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with broad industrial and automotive qualification programs.
The AT24C04A-10TI-2.7 belongs to Microchip's legacy AT24Cxx serial EEPROM family, designed specifically for robust, low-power, I²C-based nonvolatile storage in space-constrained and thermally demanding embedded systems.
FAQ
What is the memory organization of the AT24C04A-10TI-2.7?
The AT24C04A-10TI-2.7 contains 4096 bits of EEPROM memory organized as 512 words of 8 bits each (512 × 8). It is internally structured into 32 pages of 16 bytes each, enabling efficient page-write operations. The device uses a 9-bit word address for random access, and the A0 pin is not connected - only A1 and A2 are used for hardware device addressing on the I²C bus.
Does the AT24C04A-10TI-2.7 support both 100 kHz and 400 kHz I²C clock speeds?
Yes, the AT24C04A-10TI-2.7 supports 100 kHz operation at 1.8V and 400 kHz at VCC ≥ 2.5V - including its specified 2.7V to 5.5V range. This dual-speed capability allows flexible integration with legacy microcontrollers (100 kHz) and modern high-throughput systems (400 kHz), with timing parameters fully characterized per AC specifications in the datasheet.
How does the Write Protect (WP) pin function on the AT24C04A-10TI-2.7?
On the AT24C04A-10TI-2.7, the WP pin provides hardware-level write protection: when pulled high to VCC, it locks the upper 2K bits (addresses 0x200–0x3FF); when grounded, full read/write access is enabled. This feature operates independently of firmware, preventing accidental or malicious overwrites during power-up, reset, or software faults - a critical safeguard in automotive and industrial deployments.
Is the AT24C04A-10TI-2.7 qualified for automotive applications?
Yes, the AT24C04A-10TI-2.7 is explicitly rated for automotive-grade operation across −40°C to +85°C and is offered in lead-free/halogen-free packaging. While not AEC-Q100 certified as a standalone component, its specification, testing, and qualification align with automotive subsystem requirements - particularly in body electronics, infotainment, and telematics where extended temperature and long-term reliability are mandatory.
What package type is used for the AT24C04A-10TI-2.7?
The AT24C04A-10TI-2.7 is packaged in an 8-lead TSSOP (Thin Shrink Small Outline Package) with 4.4 mm body width and 0.65 mm lead pitch (JEDEC MO-153 compliant, package code 8A2). This surface-mount package offers compact footprint, thermal performance suitable for reflow soldering, and mechanical robustness for automated assembly in high-volume production.
AT24C04A-10TI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 4Kbit
- Memory Organization:
- 512 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C04A-10TI-2.7 FAQ
1.How can I place an order for AT24C04A-10TI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04A-10TI-2.7 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 AT24C04A-10TI-2.7 reliable?
The price and inventory of AT24C04A-10TI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C04A-10TI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C04A-10TI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04A-10TI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04A-10TI-2.7?
AT24C04A-10TI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04A-10TI-2.7 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 AT24C04A-10TI-2.7?
For technical support, including AT24C04A-10TI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04A-10TI-2.7 requirements.
6.How does Aetrix verify that AT24C04A-10TI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C04A-10TI-2.7 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 AT24C04A-10TI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C04A-10TI-2.7?
All AT24C04A-10TI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04A-10TI-2.7, 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 AT24C04A-10TI-2.7 part is unused and in its original packaging.
Return procedure for AT24C04A-10TI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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