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Microchip Technology AT24C04N-10SI-2.7-T
- Part No.:
- AT24C04N-10SI-2.7-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04N-10SI-2.7-T.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,261
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Product details
Overview
AT24C04N-10SI-2.7-T from Microchip Technology (formerly Atmel) is a 4-kbit I²C-compatible serial EEPROM organized as 512 words × 8 bits, operating from 2.7V to 5.5V with 100 kHz clock support, Schmitt-trigger inputs, and hardware write protection via the WP pin-used for nonvolatile parameter storage in industrial control modules, sensor calibration registers, and power management configuration.
For engineers reviewing the AT24C04N-10SI-2.7-T datasheet, AT24C04N-10SI-2.7-T pinout, AT24C04N-10SI-2.7-T application, or AT24C04N-10SI-2.7-T equivalent, this page delivers verified electrical specs, JEDEC SOIC-8 package mapping, 8-pin terminal roles, endurance (1M cycles), data retention (100 years), and two validated alternative parts for low-voltage I²C EEPROM design.
Technical Context
The AT24C04N-10SI-2.7-T implements a standard two-wire I²C interface with open-drain SDA and edge-triggered SCL, supporting up to 100 kHz operation at 2.7V–5.5V supply. It uses A2 and A1 pins for hardwired device addressing (A0 is NC), enabling up to four devices on one bus.
It features 16-byte page write capability, self-timed internal write cycle (≤10 ms), and hardware write protection activated when WP = VCC. Standby current is 1.6 µA max at 2.7V, and input leakage remains ≤3.0 µA across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 kbit (512 × 8-bit words), sufficient for storing firmware configuration, calibration coefficients, or device ID tables |
| Supply Voltage Range | 2.7V to 5.5V - supports mixed-voltage systems including 3.3V microcontrollers without level shifters |
| I²C Clock Frequency | 100 kHz maximum at 2.7V - ensures reliable timing margin in noisy industrial environments |
| Write Cycle Time | ≤10 ms - defines minimum interval between successive writes; impacts real-time logging latency |
| Endurance | 1 million write cycles - enables daily reconfiguration over >27 years of field operation |
| Data Retention | 100 years at +25°C - guarantees long-term integrity of stored calibration or security keys |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded applications without derating |
Pinout & Package
AT24C04N-10SI-2.7-T is housed in an 8-lead JEDEC-standard SOIC package (8S1), 3.9 mm × 4.9 mm body, 1.27 mm pitch, gull-wing leads, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect | Not used in AT24C04; left unconnected per datasheet - no external pull required |
| A1 | Device Address Input | Hardwired to set 1 of 4 possible I²C addresses (with A2); enables multi-device bus topology |
| A2 | Device Address Input | Hardwired to set 1 of 4 possible I²C addresses (with A1); determines unique slave address |
| GND | Ground Reference | System return path for all internal logic and I/O; must be low-impedance for noise immunity |
| VCC | Power Supply | 2.7V–5.5V main supply; decoupling capacitor (0.1 µF) required within 1 cm of pin |
| WP | Write Protect Control | Active-high hardware lock: tied to VCC disables all writes; tied to GND enables full read/write access |
| SCL | Serial Clock Input | Positive-edge sampled clock for I²C protocol; requires external pull-up resistor (typically 4.7 kΩ) |
| SDA | Serial Data I/O | Open-drain bidirectional line; shared across multiple I²C slaves; requires external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger, filtered inputs | Rejects high-frequency noise on SCL/SDA lines - eliminates false clocking in EMI-prone motor-control or power-conversion environments |
| 16-byte page write mode | Reduces I²C transaction overhead by up to 16× vs. byte-write - critical for efficient firmware update or bulk parameter save |
| Hardware write protection (WP pin) | Prevents accidental or malicious overwrites during system boot or brown-out - essential for secure configuration storage |
| Low standby current (1.6 µA @ 2.7V) | Minimizes battery drain in always-on IoT nodes or backup-power systems - extends shelf life and runtime |
| 100-year data retention | Eliminates need for periodic refresh or checksum validation in sealed industrial sensors or medical devices |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain values and temperature compensation coefficients for analog sensor front-ends. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed at power-up via I²C before ADC initialization. Use Value: Enables plug-and-play sensor replacement without host MCU reprogramming; retains calibration across 100+ years. |
Use Scenario: Holding tariff schedules, billing counters, and communication module settings in utility-grade electricity meters. IC Role / Device Role / Timing Role: Secure, write-protected configuration memory updated only during authenticated firmware updates. Use Value: Prevents tampering with billing data using hardware WP; withstands 1M write cycles for lifetime meter recalibration. |
| Embedded Power Management Unit | Automotive Body Control Module |
Use Scenario: Saving last-known state (e.g., voltage thresholds, fault logs, soft-start profiles) in DC-DC controller ICs. IC Role / Device Role / Timing Role: Low-power I²C slave providing persistent context during brown-out or reset events. Use Value: Reduces recovery time after power interruption; operates reliably down to 2.7V during automotive cranking. |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in vehicle interior ECUs. IC Role / Device Role / Timing Role: Industrial-temp EEPROM interfaced to 3.3V CAN/LIN gateway MCU for user preference persistence. Use Value: −40°C to +85°C rating ensures operation in glove-box or under-hood locations; WP pin prevents unintended overwrite during diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics M24C04-RMN6TP | Same 4-kbit size, SOIC-8, 2.5V–5.5V range; 400 kHz max clock (vs. 100 kHz for AT24C04N-10SI-2.7-T) | Supports higher-speed I²C bursts but lacks guaranteed 2.7V-only operation; not rated for −40°C start-up | Select if system uses 3.3V I²C with >100 kHz demand and ambient stays >−20°C |
| ON Semiconductor CAT24C04WI-GT3 | Identical 4-kbit organization, SOIC-8, 1.7V–5.5V range; 100 kHz at 1.8V; WP pin and page write supported | Broader low-voltage headroom (1.7V min), but endurance rated at 100k cycles (vs. 1M for AT24C04N-10SI-2.7-T) | Select for ultra-low-power battery systems needing <1.8V operation, accepting reduced rewrite lifetime |
Compared with M24C04-RMN6TP and CAT24C04WI-GT3, AT24C04N-10SI-2.7-T offers superior industrial temperature assurance (−40°C to +85°C), guaranteed 1-million-cycle endurance, and strict 2.7V–5.5V compatibility - making it optimal for mission-critical calibration and configuration storage where longevity and cold-start reliability are mandatory.
Availability
AT24C04N-10SI-2.7-T is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and embedded power management requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AT24C04N-10SI-2.7-T 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 technical and manufacturing continuity for the AT24C family of serial EEPROMs.
The AT24C04N-10SI-2.7-T belongs to Microchip's legacy serial EEPROM product line, designed specifically for robust, low-power, I²C-based nonvolatile storage in industrial, automotive, and consumer systems demanding high reliability and long-term data integrity.
FAQ
What is the maximum I²C clock frequency supported by AT24C04N-10SI-2.7-T?
The AT24C04N-10SI-2.7-T supports up to 100 kHz I²C clock frequency when operated within its specified 2.7V–5.5V supply range. This limit ensures timing compliance with tLOW ≥ 4.7 µs and tHIGH ≥ 4.0 µs under industrial temperature conditions. The part does not support 400 kHz operation - that capability applies only to 5.0V versions like AT24C04-10PC.
Does AT24C04N-10SI-2.7-T require external pull-up resistors on SDA and SCL lines?
Yes, AT24C04N-10SI-2.7-T 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 recommended for 100 kHz operation with ≤400 pF total bus load.
How many AT24C04N-10SI-2.7-T devices can share the same I²C bus?
Up to four AT24C04N-10SI-2.7-T devices can coexist on a single I²C bus. This is enabled by hardwiring the A2 and A1 pins to VCC or GND to select unique 3-bit device address bits; A0 is internally disconnected and unused in this variant.
What happens when the WP pin of AT24C04N-10SI-2.7-T is connected to VCC?
When the WP pin of AT24C04N-10SI-2.7-T is connected to VCC, hardware write protection is fully enabled: all write operations (byte, page, and erase) to the entire 4-kbit memory array are blocked. Read operations remain fully functional, allowing safe parameter retrieval without risk of corruption.
Is AT24C04N-10SI-2.7-T compatible with 1.8V I²C systems?
No, AT24C04N-10SI-2.7-T is not compatible with 1.8V I²C systems. Its minimum operating voltage is 2.7V, as indicated by the "-2.7" suffix. For 1.8V operation, Microchip offers the AT24C04N-10SI-1.8-T variant, which is characterized down to 1.8V and supports 100 kHz at that voltage.
AT24C04N-10SI-2.7-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for AT24C04N-10SI-2.7-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04N-10SI-2.7-T 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-T reliable?
The price and inventory of AT24C04N-10SI-2.7-T 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-T is usually 5 days.
3.What payment methods are accepted for AT24C04N-10SI-2.7-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04N-10SI-2.7-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04N-10SI-2.7-T?
AT24C04N-10SI-2.7-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04N-10SI-2.7-T 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-T?
For technical support, including AT24C04N-10SI-2.7-T 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-T requirements.
6.How does Aetrix verify that AT24C04N-10SI-2.7-T is sourced from the original manufacturer or authorized distributors?
All AT24C04N-10SI-2.7-T 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-T meets industry standards.
7.What is the process for return or replacement of AT24C04N-10SI-2.7-T?
All AT24C04N-10SI-2.7-T units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04N-10SI-2.7-T, 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-T part is unused and in its original packaging.
Return procedure for AT24C04N-10SI-2.7-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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