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Microchip Technology AT24C04AN-10SI-2.7
- Part No.:
- AT24C04AN-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04AN-10SI-2.7.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,310
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Product details
Overview
AT24C04AN-10SI-2.7 from Microchip Technology (formerly Atmel) is a 4-kbit serial EEPROM IC organized as 512 × 8 bits, operating from 2.7V to 5.5V, featuring a two-wire I²C-compatible interface, 400 kHz clock rate at 2.7V/5V, hardware write protection via WP pin, and automotive-grade reliability with 1 million write cycles and 100-year data retention.
For engineers reviewing the AT24C04AN-10SI-2.7 datasheet, AT24C04AN-10SI-2.7 pinout, AT24C04AN-10SI-2.7 application, or AT24C04AN-10SI-2.7 equivalent, this device serves as a drop-in-capable nonvolatile memory for embedded control storage, sensor calibration data logging, and configuration parameter retention in industrial and automotive systems requiring extended temperature operation (−40°C to +85°C) and RoHS-compliant packaging.
Technical Context
The AT24C04AN-10SI-2.7 implements a two-wire serial interface compliant with I²C protocol standards, supporting byte and 16-byte page writes with self-timed internal write cycles (max 5 ms). It uses hardwired A2/A1 address inputs for multi-device bus addressing-up to four 4K devices per bus-with A0 designated as no-connect.
Its internal architecture includes Schmitt-triggered, noise-filtered SDA/SCL inputs, open-drain bidirectional data transfer, and a dedicated WP pin that enables hardware-level write protection of the upper 2K array when pulled high. Standby current is 1.6 µA typical at 2.7V, supporting low-power system designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4096 bits (512 × 8), enabling storage of 512 bytes of configuration or calibration data |
| Supply Voltage Range | 2.7V to 5.5V - compatible with standard 3.3V and 5V logic rails without level shifting |
| I²C Clock Rate | 400 kHz at 2.7V/5V - supports fast firmware updates and real-time parameter writes |
| Page Write Capacity | 16-byte pages - reduces I²C transaction overhead vs. byte writes for bulk data storage |
| Write Endurance | 1 million cycles - suitable for frequent recalibration or event-logging applications |
| Data Retention | 100 years at +25°C - ensures long-term integrity of stored settings across product lifecycle |
| Operating Temperature | −40°C to +85°C - qualified for under-hood automotive and industrial control environments |
| Package | 8-lead JEDEC SOIC (8S1) - industry-standard footprint with 150-mil body width and gull-wing leads |
Pinout & Package
AT24C04AN-10SI-2.7 is housed in an 8-lead JEDEC SOIC (8S1) package: 0.150" wide, plastic gull-wing outline, RoHS-compliant, lead-free/halogen-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect (NC) | Internally unused; must be left unconnected per device specification for AT24C04A family |
| A1 | Device Address Input | Hardwired to set one of four possible I²C slave addresses on shared bus (A2/A1 only used) |
| A2 | Device Address Input | Hardwired to select among four unique 4K EEPROMs on same I²C bus |
| GND | Ground Reference | Return path for VCC and all signal currents; requires low-impedance PCB connection |
| VCC | Power Supply | 2.7–5.5V supply input; decoupling capacitor (0.1 µF ceramic) recommended near pin |
| WP | Write Protect Control | Hardware lock: tied to VCC disables writes to upper 2K array; tied to GND enables full read/write access |
| SCL | Serial Clock Input | Positive-edge triggered I²C clock; requires external pull-up resistor (typically 2.2–10 kΩ) |
| SDA | Serial Data Bidirectional | Open-drain I²C data line; requires external pull-up and supports wire-OR with other open-drain devices |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin enables selective locking of upper 2K memory block-prevents accidental overwrites during firmware updates |
| Noise-Resilient Interface | Schmitt-triggered, filtered SDA/SCL inputs suppress EMI-induced glitches in electrically noisy industrial environments |
| Low-Power Standby | 1.6 µA typical standby current at 2.7V enables battery-backed or energy-harvesting system integration |
| Page Write Efficiency | 16-byte page writes reduce I²C bus occupancy by up to 87% vs. sequential byte writes for same data volume |
| Extended Temp Qualification | Rated −40°C to +85°C with 100-year data retention-meets AEC-Q100 stress test requirements for automotive ECUs |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing user-defined I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register providing persistent parameter storage between power cycles. Use Value: Enables field reconfiguration without firmware reflashing; retains settings through brownouts and maintenance power loss. | Use Scenario: Saving seat position memory, mirror angle presets, and lighting profiles in vehicle BCMs. IC Role / Device Role / Timing Role: Dedicated EEPROM for user preference data with guaranteed 100-year retention at cabin temperatures. Use Value: Eliminates need for backup batteries or supercapacitors while meeting automotive longevity requirements. |
| Medical Sensor Calibration Data | Smart Energy Meter Firmware Parameters |
Use Scenario: Recording factory-calibrated offset/gain coefficients for analog front-end sensors in portable diagnostic devices. IC Role / Device Role / Timing Role: Secure, write-protected memory block storing immutable calibration constants accessed at boot. Use Value: WP pin prevents runtime corruption; 1M endurance supports recalibration during service life. | Use Scenario: Holding tariff tables, communication protocol versions, and metering constants in utility-grade electricity meters. IC Role / Device Role / Timing Role: Tamper-resistant configuration store accessible via isolated I²C bus in sealed meter housing. Use Value: Automotive-grade temperature range ensures stable operation inside outdoor meter enclosures exposed to solar heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C04D-SSHM-T | Same 4K capacity, 2.7–5.5V, SOIC-8, but newer revision with enhanced ESD rating (4 kV HBM) and tighter tAA (0.1 µs min) | Preferred for new designs requiring higher robustness in electrostatic-prone assembly environments | Select AT24C04D-SSHM-T if board-level ESD immunity >4 kV HBM is required; otherwise AT24C04AN-10SI-2.7 remains fully functional |
| M24C04-RMN6TP | 4K EEPROM, 1.7–5.5V, SOIC-8, but uses different write-protection scheme (software-controlled WP bit instead of hardware WP pin) | Suitable where flexible, dynamic write-lock control is needed-e.g., firmware-controlled security partitioning | Choose M24C04-RMN6TP only if software-configurable write protection is mandatory; AT24C04AN-10SI-2.7 offers simpler, deterministic hardware lock |
Compared with AT24C04D-SSHM-T and M24C04-RMN6TP, the AT24C04AN-10SI-2.7 provides deterministic hardware write protection and proven automotive qualification, making it optimal for safety-critical or legacy-compatible designs where pin-level WP control and extended temp reliability are prioritized over marginal speed or ESD improvements.
Availability
AT24C04AN-10SI-2.7 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT24C04AN-10SI-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 capabilities.
The AT24C04AN-10SI-2.7 belongs to Microchip's AT24Cxx serial EEPROM product line, designed specifically for reliable, low-power nonvolatile data storage in space-constrained embedded systems operating across extended temperature ranges.
FAQ
What is the maximum I²C clock frequency supported by AT24C04AN-10SI-2.7?
The AT24C04AN-10SI-2.7 supports up to 400 kHz clock frequency when operated at VCC = 2.7V or 5.0V. At 1.8V operation (not applicable to this -2.7 variant), the max clock rate is 100 kHz. This 400 kHz capability enables faster parameter writes compared to legacy 100 kHz EEPROMs, reducing system boot time and update latency in the AT24C04AN-10SI-2.7.
Does AT24C04AN-10SI-2.7 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C04AN-10SI-2.7 requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed; 4.7 kΩ is commonly used for 400 kHz operation. Without pull-ups, the AT24C04AN-10SI-2.7 cannot drive valid high logic levels on the bus.
How does the WP pin function on AT24C04AN-10SI-2.7?
On the AT24C04AN-10SI-2.7, the WP (Write Protect) pin provides hardware-level write protection: when tied to VCC, it locks the upper 2K (2048-bit) memory block against writes; when tied to GND, full read/write access is enabled. This feature prevents accidental overwrites during firmware updates or power transients, and is a key differentiator of the AT24C04AN-10SI-2.7 versus software-only protected EEPROMs.
What is the memory organization of AT24C04AN-10SI-2.7?
The AT24C04AN-10SI-2.7 is internally organized as 512 words of 8 bits each (4096 total bits), arranged in 32 pages of 16 bytes. This 16-byte page structure enables efficient page-write operations, reducing I²C transaction count by up to 94% versus byte-by-byte writes for contiguous data. The memory map and page boundaries are fixed and defined in the AT24C04AN-10SI-2.7 datasheet.
Is AT24C04AN-10SI-2.7 qualified for automotive applications?
Yes, AT24C04AN-10SI-2.7 is explicitly specified as automotive grade with extended temperature operation from −40°C to +85°C and meets relevant reliability standards including 1 million write cycles and 100-year data retention. Its SOIC-8 package is halogen-free and RoHS-compliant, satisfying Tier-1 supplier requirements for body electronics and infotainment modules using the AT24C04AN-10SI-2.7.
AT24C04AN-10SI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
AT24C04AN-10SI-2.7 FAQ
1.How can I place an order for AT24C04AN-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04AN-10SI-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 AT24C04AN-10SI-2.7 reliable?
The price and inventory of AT24C04AN-10SI-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 AT24C04AN-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C04AN-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04AN-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04AN-10SI-2.7?
AT24C04AN-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04AN-10SI-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 AT24C04AN-10SI-2.7?
For technical support, including AT24C04AN-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04AN-10SI-2.7 requirements.
6.How does Aetrix verify that AT24C04AN-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C04AN-10SI-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 AT24C04AN-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C04AN-10SI-2.7?
All AT24C04AN-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04AN-10SI-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 AT24C04AN-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT24C04AN-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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