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Microchip Technology AT24C04AN-10SC
- Part No.:
- AT24C04AN-10SC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04AN-10SC.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,140
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Product details
Overview
AT24C04AN-10SC from Microchip Technology (formerly Atmel) is a 4K-bit (512 × 8) I²C-compatible serial EEPROM with hardware write protection, low-voltage operation (2.7V–5.5V), and 100 kHz clock compatibility at 2.7V. It features 16-byte page write capability, 1 million write cycles endurance, and 100-year data retention-used in embedded system configuration storage, sensor calibration data logging, and industrial controller parameter backup.
For engineers reviewing the AT24C04AN-10SC datasheet, AT24C04AN-10SC pinout, AT24C04AN-10SC application, or AT24C04AN-10SC equivalent, key selection considerations include its 2.7V minimum VCC, WP pin-based hardware write lock, 8-pin SOIC package (8S1), 16-byte page write mode, and industrial-grade temperature range (−40°C to +85°C) as confirmed in the AT24C04A ordering table.
Technical Context
The AT24C04AN-10SC implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA and SCL inputs. Its internal memory is organized as 512 words of 8 bits each, requiring a 9-bit word address for random access.
Device addressing uses A2 and A1 pins (A0 is NC), enabling up to four AT24C04AN-10SC devices on a single bus. Write protection is controlled by the WP pin: tied to VCC, it locks the upper 2K array; tied to GND, full read/write access is enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4096 bits (512 × 8), supporting nonvolatile storage of device configuration or calibration data |
| Supply Voltage Range | 2.7V to 5.5V - enables direct integration into 3.3V and 5V systems without level-shifting |
| I²C Clock Frequency | 100 kHz max at 2.7V - ensures reliable timing margin in noisy industrial environments |
| Page Write Size | 16 bytes - reduces firmware overhead during bulk parameter updates versus byte-wise writes |
| Write Endurance | 1,000,000 cycles - supports frequent recalibration or logging in field-deployed equipment |
| Data Retention | 100 years at 25°C - guarantees long-term integrity of stored settings across product lifecycle |
| Operating Temperature | −40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor IoT nodes |
Pinout & Package
AT24C04AN-10SC is housed in an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, with standard gull-wing leads and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect | Not bonded internally; must be left unconnected per AT24C04A datasheet |
| A1 | Device Address Input | Hardwired address bit; sets one of four possible I²C slave addresses (with A2) |
| A2 | Device Address Input | Hardwired address bit; used with A1 to select among four AT24C04AN-10SC devices on same bus |
| GND | Ground Reference | Return path for VCC and I/O; requires low-impedance connection to system ground plane |
| VCC | Power Supply | Accepts 2.7V–5.5V; decoupling capacitor (0.1 µF) required within 10 mm of pin |
| WP | Write Protect Control | Hardware lock: VCC = upper 2K protected; GND = full read/write access |
| SCL | I²C Clock Input | Open-drain compatible; requires external pull-up; drives timing for all serial transfers |
| SDA | I²C Data I/O | Bidirectional open-drain line; shared across multiple I²C peripherals; needs pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin enables selective locking of upper 2K memory block without software intervention |
| Noise-Immune Inputs | Schmitt-trigger + filtering on SDA/SCL ensures robust operation in electrically noisy industrial enclosures |
| Low-Voltage Operation | Functional down to 2.7V allows direct use with 3.3V microcontrollers and battery-backed systems |
| Page Write Efficiency | 16-byte page writes reduce I²C transaction count by up to 16× vs. byte-wise programming |
| High Reliability | 1M write cycles and 100-year retention meet long-life requirements for medical and infrastructure gear |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Data Logging |
|---|---|
Use Scenario: Storing I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent setup parameters between power cycles. Use Value: Enables zero-touch reinitialization after brownouts; WP pin prevents accidental overwrites during firmware updates. |
Use Scenario: Recording factory-trimmed offset/gain coefficients and temperature compensation tables for analog sensor modules. IC Role / Device Role / Timing Role: Dedicated calibration memory accessed once at startup via I²C before ADC conversion begins. Use Value: Eliminates need for external trimming components; 100-year retention ensures accuracy over equipment service life. |
| Automotive Body Control Module Settings | POS Terminal Parameter Backup |
Use Scenario: Saving user-configurable lighting profiles, mirror positions, and seat memory in 12V automotive body control units. IC Role / Device Role / Timing Role: I²C slave storing NV parameters accessible by main MCU during ignition-on initialization. Use Value: −40°C to +85°C rating ensures reliability under hood temperature extremes; 2.7V min VCC supports operation during cold-cranking. |
Use Scenario: Preserving tax rates, receipt formats, and user PINs in point-of-sale terminals subject to daily power cycling. IC Role / Device Role / Timing Role: Low-power serial EEPROM retaining critical business data across unplanned outages. Use Value: 1 µA standby current (at 2.7V) extends battery backup runtime; WP pin blocks malware-induced parameter corruption. |
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-bit capacity, 1.7V–5.5V supply, but uses newer AT24C04D die with enhanced ESD (>4kV HBM) and faster 1 MHz I²C support | Supports higher-speed I²C buses and wider voltage headroom; not drop-in due to different AC timing specs | Select when upgrading legacy designs for improved noise immunity or future-proofing I²C bandwidth |
| M24C04-RMN6TP | 4K-bit STMicroelectronics EEPROM; identical 2.7V–5.5V range and 8-pin SOIC package, but rated for 400 kHz at 2.7V (vs. 100 kHz for AT24C04AN-10SC) | Enables faster parameter loading in time-critical boot sequences; pinout matches but WP behavior differs (active-high vs. active-low logic) | Choose for new designs needing higher throughput; verify WP polarity and acknowledge timing in firmware |
Compared with AT24C04AN-10SC, AT24C04D-SSHM-T offers broader voltage range and higher speed but requires timing validation, while M24C04-RMN6TP delivers faster 2.7V operation with identical footprint but demands WP logic adaptation-neither is pin- or firmware-compatible without verification.
Availability
AT24C04AN-10SC is available at Aetrix Electronics and suitable for industrial PLCs, smart sensors, automotive body control modules, and POS terminals requiring stable component supply across extended temperature and voltage ranges.
Supply support for AT24C04AN-10SC 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 and technical support for the AT24Cxx family of serial EEPROMs.
The AT24C04AN-10SC belongs to Microchip's legacy AT24Cxx serial EEPROM product line, designed specifically for cost-sensitive, low-power embedded systems requiring reliable nonvolatile storage with minimal board space and I²C simplicity.
FAQ
What is the maximum I²C clock frequency supported by AT24C04AN-10SC at 2.7V?
The AT24C04AN-10SC supports a maximum I²C clock frequency of 100 kHz when operating at VCC = 2.7V, as specified in the AC Characteristics table of the AT24C04A datasheet. This lower speed ensures timing margin under marginal voltage conditions and is distinct from its 400 kHz capability at 5.0V. Designers must configure their master controller accordingly to avoid ACK timeouts or data corruption.
Is AT24C04AN-10SC pin-compatible with AT24C02A or AT24C08A in the same SOIC-8 package?
Yes, AT24C04AN-10SC shares identical 8-pin SOIC (8S1) pinout and electrical interface with AT24C02A and AT24C08A, including A0–A2, SDA, SCL, WP, VCC, and GND assignments. However, memory size, addressing scheme (A0 is NC on AT24C04AN-10SC), and page write length differ-firmware must be adapted to match 512-word addressing and 16-byte pages.
How does the Write Protect (WP) pin function on AT24C04AN-10SC?
On AT24C04AN-10SC, the WP pin provides hardware-level write protection: when pulled high to VCC, it locks the upper 2K-bit (2048-bit) portion of memory; when grounded, full read/write access is enabled. This behavior is fixed per the AT24C04A datasheet and differs from AT24C02A/AT24C08A, where WP protects different memory segments.
What is the guaranteed data retention period for AT24C04AN-10SC?
AT24C04AN-10SC guarantees 100 years of data retention at 25°C ambient temperature, as stated in the Features section and DC Characteristics table. This specification applies to data written under recommended operating conditions and assumes no exposure to absolute maximum stress ratings. Retention decreases logarithmically at elevated temperatures but remains >10 years at 85°C.
Does AT24C04AN-10SC require external pull-up resistors on SDA and SCL lines?
Yes, AT24C04AN-10SC requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 1.8 kΩ to 10 kΩ depending on bus capacitance and desired rise time; 4.7 kΩ is commonly used for standard-mode (100 kHz) operation with ≤400 pF total bus capacitance.
AT24C04AN-10SC 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C04AN-10SC FAQ
1.How can I place an order for AT24C04AN-10SC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04AN-10SC 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-10SC reliable?
The price and inventory of AT24C04AN-10SC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C04AN-10SC is usually 5 days.
3.What payment methods are accepted for AT24C04AN-10SC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04AN-10SC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04AN-10SC?
AT24C04AN-10SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04AN-10SC 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-10SC?
For technical support, including AT24C04AN-10SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04AN-10SC requirements.
6.How does Aetrix verify that AT24C04AN-10SC is sourced from the original manufacturer or authorized distributors?
All AT24C04AN-10SC 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-10SC meets industry standards.
7.What is the process for return or replacement of AT24C04AN-10SC?
All AT24C04AN-10SC units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04AN-10SC, 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-10SC part is unused and in its original packaging.
Return procedure for AT24C04AN-10SC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C04AN-10SC Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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