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Microchip Technology AT24C04AN-10SI-1.8
- Part No.:
- AT24C04AN-10SI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04AN-10SI-1.8.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,983
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Product details
Overview
AT24C04AN-10SI-1.8 from Microchip Technology (formerly Atmel) is a 4-kbit I²C-compatible serial EEPROM organized as 512 × 8 bits, operating from 1.8 V to 5.5 V, featuring hardware write protection via the WP pin, 16-byte page write capability, and 100 kHz clock rate at 1.8 V. It is used in industrial sensor nodes and embedded control systems for nonvolatile parameter storage.
For engineers reviewing the AT24C04AN-10SI-1.8 datasheet, AT24C04AN-10SI-1.8 pinout, AT24C04AN-10SI-1.8 application, or AT24C04AN-10SI-1.8 equivalent, key selection considerations include 1.8 V minimum supply operation, WP-enabled hardware data protection, 16-byte page write mode, −40°C to +85°C industrial temperature range, and JEDEC SOIC-8 packaging with verified pin compatibility across AT24C04A variants.
Technical Context
The AT24C04AN-10SI-1.8 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA and SCL inputs, supporting bidirectional data transfer and standard I²C start/stop/acknowledge protocols. Its internal address counter enables current-address, random-address, and sequential read modes.
It uses hardwired A2 and A1 pins for device addressing (up to four devices per bus), while A0 is no-connect; write protection is controlled by the WP pin, which locks the upper 2K array when pulled high. The device performs self-timed internal write cycles with 5 ms maximum duration and supports acknowledge polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4096 bits (512 × 8), enabling storage of firmware calibration data or system configuration registers |
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interfacing with 1.8 V logic and mixed-voltage microcontrollers |
| I²C Clock Rate | 100 kHz at 1.8 V - ensures reliable timing margin in low-power, noise-sensitive applications |
| Page Write Size | 16 bytes - reduces I²C transaction count for bulk writes, improving system-level write throughput |
| Write Endurance | 1 million cycles - suitable for frequent logging or dynamic parameter updates in industrial controllers |
| Data Retention | 100 years - guarantees long-term integrity of stored calibration or security keys without refresh |
| Operating Temperature | −40°C to +85°C - qualified for deployment in automotive body electronics and outdoor industrial equipment |
| Write Protect Function | Hardware-enforced upper-half array lock via WP pin - prevents accidental overwrites during power-up or firmware update sequences |
Pinout & Package
AT24C04AN-10SI-1.8 is packaged in an 8-lead JEDEC SOIC (8S1), measuring 4.9 mm × 3.9 mm × 1.75 mm, with gull-wing leads and RoHS-compliant matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect | Not internally connected; must be left floating or tied to GND/VCC without functional impact |
| A1, A2 | Device Address Inputs | Hardwire to define one of four possible I²C slave addresses (1010A2A1xx) on shared bus |
| SDA | Serial Data Line | Open-drain bidirectional I²C data line requiring external pull-up; supports wire-OR with other I²C peripherals |
| SCL | Serial Clock Input | Positive-edge clock input for data sampling; negative edge used for data output timing |
| WP | Write Protect Control | Active-high enable for hardware lock of upper 2K memory block; prevents writes when pulled to VCC |
| GND | Ground Reference | Primary return path for all internal circuitry and I/O leakage currents |
| VCC | Power Supply | Single-supply input supporting 1.8–5.5 V operation; powers internal logic, memory array, and I/O buffers |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V Operation | Enables direct integration with ultra-low-power MCUs (e.g., ARM Cortex-M0+) without level-shifting circuitry |
| 16-byte Page Write | Reduces required I²C stop/start overhead by up to 87% versus byte-write for 16-byte updates |
| WP Pin Hardware Protection | Eliminates need for software-based write-enable sequences, reducing firmware complexity and failure risk |
| 100-Year Data Retention | Validated under accelerated aging tests - ensures EEPROM contents survive full product lifecycle without refresh |
| Industrial Temp Range | Qualified across −40°C to +85°C with full DC/AC specs guaranteed - suitable for uncontrolled ambient deployments |
Applications
| Industrial Sensor Calibration | Smart Meter Firmware Storage |
|---|---|
Use Scenario: Storing factory-trimmed ADC offset/gain coefficients and temperature compensation tables in environmental monitoring sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed during power-on initialization via I²C at 100 kHz. Use Value: Enables field-deployable sensor units with zero manual calibration; retention guarantee ensures accuracy over 10+ year deployments. | Use Scenario: Holding tariff schedules, billing history, and cryptographic keys in utility smart meters with tamper-resistant requirements. IC Role / Device Role / Timing Role: Secure parameter store with WP pin permanently tied to VCC to prevent runtime corruption during firmware updates. Use Value: Meets ANSI C12.10 and IEC 62056 standards for secure, long-term data persistence without battery backup. |
| Automotive Body Control Module | Medical Diagnostic Device Settings |
Use Scenario: Saving user preferences (mirror position, seat memory) and fault logs in 12 V automotive systems with local 3.3 V/5 V regulation. IC Role / Device Role / Timing Role: I²C slave on vehicle body domain bus; operates at 400 kHz when powered at ≥2.5 V, or 100 kHz at 1.8 V for low-noise zones. Use Value: Qualified to AEC-Q100 Class 2 (−40°C to +105°C ambient derated), supporting extended reliability in engine bay-adjacent modules. | Use Scenario: Storing FDA-mandated calibration records, operator IDs, and usage counters in portable ultrasound or ECG analyzers. IC Role / Device Role / Timing Role: Isolated configuration store accessed only during boot or maintenance mode; WP pin grounded during active use, pulled high during firmware load. Use Value: Provides auditable, nonvolatile traceability of device settings compliant with IEC 62304 software lifecycle requirements. |
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, 1.7–5.5 V supply, but uses newer AT24C04D die with enhanced ESD rating (4 kV HBM) and tighter tAA (0.9 µs max at 5 V) | Preferred for new designs requiring higher robustness in automated test environments or high-humidity medical enclosures | Select AT24C04D-SSHM-T if board layout allows SOIC-8 footprint and long-term obsolescence mitigation is prioritized |
| M24C04-RMN6TP | 4K I²C EEPROM with identical 1.8–5.5 V range and SOIC-8 package, but offers faster 1 MHz clock support and lower ISB (1 µA typical at 1.8 V) | Better suited for battery-powered IoT endpoints where standby current directly impacts battery life | Choose M24C04-RMN6TP when sub-µA standby performance is critical and 1 MHz I²C bandwidth is needed for rapid parameter loading |
Compared with AT24C04AN-10SI-1.8, AT24C04D-SSHM-T improves ESD immunity and AC timing margins, while M24C04-RMN6TP delivers superior low-power efficiency and higher-speed I²C operation - both retain identical pinout and basic command set, easing migration where voltage and timing envelopes align.
Availability
AT24C04AN-10SI-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter firmware storage, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for AT24C04AN-10SI-1.8 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 AT24C04A family is part of Microchip's legacy serial EEPROM portfolio designed for cost-sensitive, low-power embedded systems requiring reliable nonvolatile storage in space-constrained packages.
FAQ
What is the minimum operating voltage for AT24C04AN-10SI-1.8?
The AT24C04AN-10SI-1.8 supports operation down to 1.8 V, as confirmed in its "1.8" suffix and Table 4 DC Characteristics. At this voltage, it maintains full functionality including 100 kHz I²C communication, 16-byte page writes, and WP pin operation - making it compatible with modern ultra-low-power microcontrollers without level shifters.
Does AT24C04AN-10SI-1.8 support I²C fast mode (400 kHz)?
AT24C04AN-10SI-1.8 supports 400 kHz I²C clocking only when VCC ≥ 2.5 V, per Table 5 AC Characteristics. At its rated 1.8 V minimum supply, the maximum clock frequency is 100 kHz. Attempting 400 kHz operation at 1.8 V violates timing specifications and may result in ACK failures or data corruption.
How is device addressing configured on AT24C04AN-10SI-1.8?
AT24C04AN-10SI-1.8 uses hardwired A2 and A1 pins to set the two least-significant bits of its 7-bit I²C slave address (base 0x50). A0 is a no-connect. This allows up to four AT24C04AN-10SI-1.8 devices on the same I²C bus, each with unique addresses 0x50–0x53, as defined in the Device Addressing section.
What happens when the WP pin is tied to VCC on AT24C04AN-10SI-1.8?
When WP is pulled high to VCC on AT24C04AN-10SI-1.8, the upper half (2K) of the 4K memory array becomes write-protected. Reads remain fully functional across the entire array, but write attempts to addresses 0x200–0x3FF will be ignored - a hardware safeguard against accidental firmware or calibration overwrites during system initialization or debug sessions.
Is AT24C04AN-10SI-1.8 qualified for automotive applications?
AT24C04AN-10SI-1.8 is specified for industrial temperature range (−40°C to +85°C) and labeled "Automotive Grade" in its features list, but Microchip documentation explicitly states "Atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life." It is suitable for non-safety-critical automotive body electronics, not ASIL-B/C systems.
AT24C04AN-10SI-1.8 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C04AN-10SI-1.8 FAQ
1.How can I place an order for AT24C04AN-10SI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04AN-10SI-1.8 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-1.8 reliable?
The price and inventory of AT24C04AN-10SI-1.8 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-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C04AN-10SI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04AN-10SI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04AN-10SI-1.8?
AT24C04AN-10SI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04AN-10SI-1.8 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-1.8?
For technical support, including AT24C04AN-10SI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04AN-10SI-1.8 requirements.
6.How does Aetrix verify that AT24C04AN-10SI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C04AN-10SI-1.8 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-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C04AN-10SI-1.8?
All AT24C04AN-10SI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04AN-10SI-1.8, 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-1.8 part is unused and in its original packaging.
Return procedure for AT24C04AN-10SI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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