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Microchip Technology AT24C04N-10SI-2.7
- Part No.:
- AT24C04N-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04N-10SI-2.7.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,394
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Product details
Overview
AT24C04N-10SI-2.7 from Microchip Technology (formerly Atmel) is a 4-kbit I²C-compatible serial EEPROM organized as 512 × 8 bits, operating from 2.7V to 5.5V with 100 kHz maximum clock frequency, 10 ms max write cycle time, and industrial temperature range (−40°C to +85°C). It serves as nonvolatile configuration storage in embedded controllers, power management units, and sensor calibration modules.
For engineers reviewing the AT24C04N-10SI-2.7 datasheet, AT24C04N-10SI-2.7 pinout, AT24C04N-10SI-2.7 application, or AT24C04N-10SI-2.7 equivalent, key selection criteria include low-voltage I²C compatibility, hardware write protection via WP pin, 16-byte page write capability, Schmitt-trigger inputs for noise immunity, and JEDEC SOIC-8 packaging for space-constrained PCB layouts.
Technical Context
The AT24C04N-10SI-2.7 implements a two-wire I²C interface with open-drain SDA and edge-triggered SCL, supporting standard-mode (100 kHz) operation at 2.7V–5.5V. Its internal address space uses 9-bit word addressing and supports both byte and 16-byte page writes with automatic address incrementing within pages.
Device addressing relies on A2 and A1 pins (A0 is NC), enabling up to four AT24C04 devices on a single bus. The WP pin provides hardware-level write protection: tied to VCC, it locks the full 4K array; tied to GND, full read/write access is enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4096 bits (512 × 8), sufficient for storing device IDs, calibration coefficients, or boot configuration flags |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V microcontrollers and legacy 5V systems without level shifting |
| I²C Clock Frequency | 100 kHz max at 2.7V - ensures reliable timing margin in noisy industrial environments |
| Write Cycle Time | 10 ms maximum - defines minimum interval between successive write commands; impacts firmware write-sequence design |
| Endurance | 1 million write cycles - supports frequent field-updatable parameters in telemetry or logging applications |
| Data Retention | 100 years at 25°C - guarantees long-term validity of stored calibration or security keys over product lifetime |
| Operating Temperature | −40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor IoT nodes |
Pinout & Package
AT24C04N-10SI-2.7 is housed in an 8-lead JEDEC SOIC package (8S1), 3.9mm × 4.9mm footprint, 1.75mm height, gull-wing leads, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect | Not used in AT24C04; must be left unconnected per datasheet - avoids unintended device addressing conflicts |
| A1 | Device Address Input | Hardwired to set one of four possible I²C slave addresses (0x50–0x53); determines bus topology scalability |
| A2 | Device Address Input | Hardwired to set one of four possible I²C slave addresses (0x50–0x53); enables multi-device EEPROM configurations |
| GND | Ground Reference | Return path for all internal circuitry and I²C bus termination; requires low-impedance PCB plane connection |
| VCC | Power Supply | Primary supply input (2.7V–5.5V); decoupling capacitor (0.1 µF) required within 10 mm of pin |
| WP | Write Protect Control | Active-high hardware lock: VCC = full-array protection; GND = normal read/write - critical for firmware update safety |
| SCL | Serial Clock Input | Positive-edge sampled clock for I²C transactions; requires external pull-up resistor (typically 2.2–10 kΩ) |
| SDA | Serial Data I/O | Open-drain bidirectional data line; shared across multiple I²C devices; requires same external pull-up as SCL |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables robust I²C communication in electrically noisy environments (e.g., motor drives, power supplies) by rejecting sub-threshold noise spikes |
| 16-byte page write mode | Reduces firmware overhead and bus occupancy vs. byte writes - improves efficiency when updating consecutive configuration registers |
| Hardware write protection (WP pin) | Prevents accidental overwrites during power transients or software faults - essential for safety-critical parameter storage |
| 100-year data retention | Eliminates need for periodic refresh or backup power in battery-free applications such as smart meters or asset tags |
| Industrial temperature grade | Validated operation across −40°C to +85°C ensures reliability in under-hood automotive ECUs and factory-floor PLCs |
Applications
| Industrial Sensor Calibration | Embedded System Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed once at power-on via I²C; no real-time timing constraints. Use Value: Enables plug-and-play sensor replacement without manual recalibration; leverages 1M endurance for field re-trimming. |
Use Scenario: Holding boot-time configuration (e.g., UART baud rate, display resolution, network MAC address) in medical diagnostic handhelds. IC Role / Device Role / Timing Role: I²C-configurable memory mapped into MCU's initialization sequence; accessed during cold start only. Use Value: Supports field-upgradable settings without firmware reflashing; 2.7V operation ensures compatibility with Li-ion battery discharge profiles. |
| Power Management Unit (PMU) | Automotive Body Control Module (BCM) |
Use Scenario: Saving last-known state (e.g., output channel enable/disable status, fault history) in DC-DC controller ICs after unexpected power loss. IC Role / Device Role / Timing Role: Fail-safe nonvolatile scratchpad; written during graceful shutdown or interrupt-driven save routines. Use Value: Enables "state restoration" on next power-up - critical for energy-efficient always-on subsystems. |
Use Scenario: Storing seat/mirror position presets and door lock programming in vehicle convenience modules. IC Role / Device Role / Timing Role: I²C slave device interfaced to BCM microcontroller; accessed during user setup or ignition cycle. Use Value: −40°C to +85°C rating ensures operation in extreme cabin temperatures; WP pin prevents corruption during load-dump events. |
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, SOIC-8, 2.5V–5.5V range; higher 400 kHz I²C speed but not rated for 2.7V-only operation | Preferred where system runs ≥2.5V and requires faster configuration loading | Select if 400 kHz bus speed is needed and supply never drops below 2.5V |
| M24C04-RMN6TP | 4K I²C EEPROM, TSSOP-8, 1.7V–5.5V; lower 1 µA standby current but lacks dedicated WP pin (relies on software lock) | Better for ultra-low-power battery applications; less robust against firmware bugs corrupting settings | Choose when minimizing quiescent current is critical and hardware write protection is not mandatory |
Compared with AT24C04N-10SI-2.7, AT24C04D-SSHM-T offers faster I²C throughput but reduced low-voltage margin, while M24C04-RMN6TP trades hardware write protection for lower power - making AT24C04N-10SI-2.7 optimal for industrial designs requiring guaranteed 2.7V operation and physical write lock.
Availability
AT24C04N-10SI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded system configuration, power management unit state storage, and automotive body control module applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT24C04N-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 acquired Atmel in 2016 and maintains full backward compatibility, documentation, and manufacturing continuity for the AT24Cxx EEPROM family.
The AT24C04N-10SI-2.7 belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power, I²C-based nonvolatile data storage in resource-constrained embedded systems.
FAQ
What voltage range does the AT24C04N-10SI-2.7 support?
The AT24C04N-10SI-2.7 operates from 2.7V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This dual-voltage capability eliminates the need for level shifters in mixed-supply designs and ensures stable operation across wide input voltage tolerances typical in industrial power rails.
How many devices can share the same I²C bus with AT24C04N-10SI-2.7?
Up to four AT24C04N-10SI-2.7 devices can coexist on a single I²C bus using hardwired A2 and A1 pins to configure unique 7-bit slave addresses (0x50–0x53). The A0 pin is internally disconnected and must remain unconnected to avoid address conflicts.
Does AT24C04N-10SI-2.7 support page writes, and what is the page size?
Yes, AT24C04N-10SI-2.7 supports 16-byte page writes. This allows up to 16 sequential bytes to be written in a single I²C transaction, significantly reducing bus overhead compared to individual byte writes - especially valuable when updating configuration blocks or lookup tables.
What is the function of the WP pin on AT24C04N-10SI-2.7?
The WP (Write Protect) pin on AT24C04N-10SI-2.7 provides hardware-level write inhibition. When pulled high to VCC, it disables all write operations to the entire 4K memory array. When grounded, full read/write access is enabled - a critical feature for preventing corruption during firmware updates or brown-out conditions.
Is AT24C04N-10SI-2.7 qualified for industrial temperature operation?
Yes, AT24C04N-10SI-2.7 is specified for industrial temperature range (−40°C to +85°C), verified per its ordering code suffix "-10SI-2.7". This qualification ensures reliable performance in demanding environments such as factory automation controllers, outdoor metering equipment, and transportation electronics.
AT24C04N-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
AT24C04N-10SI-2.7 FAQ
1.How can I place an order for AT24C04N-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04N-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 AT24C04N-10SI-2.7 reliable?
The price and inventory of AT24C04N-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 AT24C04N-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C04N-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04N-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04N-10SI-2.7?
AT24C04N-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04N-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 AT24C04N-10SI-2.7?
For technical support, including AT24C04N-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04N-10SI-2.7 requirements.
6.How does Aetrix verify that AT24C04N-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C04N-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 AT24C04N-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C04N-10SI-2.7?
All AT24C04N-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04N-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 AT24C04N-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT24C04N-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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