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Microchip Technology AT24C04AN-10SC-1.8
- Part No.:
- AT24C04AN-10SC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04AN-10SC-1.8.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,670
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Product details
Overview
AT24C04AN-10SC-1.8 from Microchip Technology (formerly Atmel) is a 4K-bit (512 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage embedded systems. It operates from 1.8V to 5.5V, supports 100 kHz I²C communication at 1.8V, features hardware write protection via the WP pin, and delivers 1 million write cycles with 100-year data retention - used in battery-powered IoT sensor nodes for nonvolatile configuration storage.
For engineers reviewing the AT24C04AN-10SC-1.8 datasheet, AT24C04AN-10SC-1.8 pinout, AT24C04AN-10SC-1.8 application, or AT24C04AN-10SC-1.8 equivalent, key selection criteria include 1.8V minimum supply compatibility, 8-pin SOIC package footprint, page-write capability (16-byte pages), Schmitt-trigger noise immunity on SDA/SCL, and hardware write-protect behavior under VCC assertion.
Technical Context
The AT24C04AN-10SC-1.8 implements a two-wire I²C interface with open-drain SDA/SCL pins, requiring external pull-ups. Its internal address space is organized as 512 words of 8 bits each, accessed using a 9-bit word address where A2 and A1 serve as hardwired device address inputs (A0 is NC), enabling up to four devices on a shared bus.
Write operations support both byte and 16-byte page modes, with self-timed internal write cycles completing in ≤10 ms. The device enters low-power standby mode (<3 µA at 1.8V) after STOP condition receipt and includes Schmitt-triggered, filtered inputs for robust operation in electrically noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (512 × 8 bits) - provides sufficient space for firmware calibration tables, device IDs, and runtime configuration in compact microcontrollers. |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic families and mixed-voltage systems without level shifters. |
| I²C Clock Frequency | 100 kHz max at 1.8V - ensures reliable timing margin in low-power, battery-operated applications where high-speed clocks increase noise susceptibility. |
| Page Write Size | 16 bytes - reduces I²C transaction count during bulk writes, minimizing bus occupancy and host CPU overhead. |
| Write Endurance | 1 million cycles - supports frequent logging or parameter updates in telemetry and control systems over extended field life. |
| Data Retention | 100 years at +25°C - guarantees long-term integrity of stored calibration, security keys, or manufacturing data without refresh. |
| Standby Current | 3 µA max at 1.8V - critical for multi-year operation in energy-harvesting or coin-cell–powered edge devices. |
Pinout & Package
AT24C04AN-10SC-1.8 is housed in an 8-pin JEDEC SOIC package (8S1), 0.150" wide, with standard gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and rated for industrial temperature range (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect (NC) | Not bonded internally; must be left unconnected per datasheet - omission prevents unintended device addressing conflicts. |
| A1 | Device Address Input | Hardwired input determining one bit of 3-bit device address; sets unique I²C slave address alongside A2. |
| A2 | Device Address Input | Hardwired input determining MSB of 3-bit device address; enables up to four AT24C04AN-10SC-1.8 devices on same I²C bus. |
| GND | Ground Reference | System ground return path; must be low-impedance and decoupled near VCC pin to suppress I²C noise coupling. |
| VCC | Power Supply | 1.8V–5.5V supply input; requires local 0.1 µF ceramic decoupling capacitor placed within 5 mm of pin. |
| WP | Write Protect Control | Active-high hardware lock: tied to VCC disables all writes (protects full 4K array); grounded enables normal read/write. |
| SCL | Serial Clock Input | Open-drain input accepting 100 kHz I²C clock; Schmitt-triggered for noise rejection; requires external pull-up resistor. |
| SDA | Serial Data I/O | Bidirectional open-drain data line; shares bus with other I²C devices; requires same external pull-up as SCL. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Operation Support | Guaranteed functionality down to 1.8V supply - eliminates need for voltage translators when interfacing with modern ultra-low-power MCUs. |
| Hardware Write Protection | WP pin asserts full-array write lock at VCC - prevents accidental firmware corruption during power transients or software faults. |
| 16-Byte Page Writes | Reduces required I²C START/STOP sequences by 16× versus byte writes - improves throughput and lowers host processor load in configuration updates. |
| Schmitt-Trigger Inputs | Filters >100 ns noise spikes on SDA/SCL - ensures reliable communication in motor-drive or switching-power-supply adjacent PCB layouts. |
| 100-Year Data Retention | Validated at +25°C - certifies long-term storage of cryptographic keys, calibration coefficients, and regulatory compliance data without periodic refresh. |
Applications
| Smart Metering Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs in utility-grade electricity meters operating on lithium-thionyl chloride batteries. IC Role / Device Role / Timing Role: Nonvolatile configuration and event storage EEPROM interfaced directly to a 1.8V ARM Cortex-M0+ MCU via I²C. Use Value: 3 µA standby current extends battery life beyond 15 years; 1.8V compatibility avoids DC-DC conversion losses; WP pin prevents unauthorized schedule modification. |
Use Scenario: Holding module identification, channel scaling factors, and fault-history buffers in DIN-rail-mounted analog input expansion cards for factory automation controllers. IC Role / Device Role / Timing Role: Persistent parameter storage accessible during hot-swap insertion and firmware updates without volatile RAM backup. Use Value: 1 million write cycles withstand daily recalibration; Schmitt-trigger inputs reject EMI from nearby 24V solenoid drivers; 8-pin SOIC fits dense backplane layouts. |
| Wearable Health Sensor Hub | Automotive Body Control Unit (BCU) |
Use Scenario: Saving user biometric profiles, sensor offset corrections, and firmware update staging data in Bluetooth-enabled ECG patches powered by micro-coil batteries. IC Role / Device Role / Timing Role: Low-energy configuration memory co-located with an nRF52832 SoC running at 1.8V core voltage. Use Value: 1.8V operation matches SoC I/O rail; 100-year retention preserves lifetime calibration; 16-byte page writes accelerate OTA parameter sync. |
Use Scenario: Storing seat position memory, mirror presets, and lighting configuration across vehicle production variants in 12V automotive BCU modules. IC Role / Device Role / Timing Role: Automotive-grade EEPROM (AEC-Q100 qualified variant available) storing user preferences with WP-enabled write lockdown during ignition cycling. Use Value: Industrial temperature rating (−40°C to +85°C) ensures reliability under hood conditions; WP pin prevents EEPROM corruption during load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C04-RMN6TP | 4K-bit I²C EEPROM; 1.7V–5.5V supply; 400 kHz max at 5V but only 100 kHz guaranteed at 1.8V; same 8-pin SOIC (SO8) package. | Identical memory size and voltage range; slightly higher max standby current (5 µA @ 1.8V vs. 3 µA). | Select when sourcing from STMicroelectronics preferred supply chain; verify WP pin behavior matches system-level lock requirements. |
| BR24G04NUX-10LE2 | 4K-bit I²C EEPROM; 1.6V–5.5V supply; 1 MHz max at 5V but 100 kHz min at 1.7V; 8-pin USON (2 × 3 mm) package - smaller footprint than SOIC. | Enables PCB area reduction; lacks through-hole-compatible SOIC option; WP pin functionally identical. | Choose for space-constrained designs where reworkability is secondary to miniaturization; confirm thermal profile compatibility with USON reflow. |
Compared with M24C04-RMN6TP and BR24G04NUX-10LE2, the AT24C04AN-10SC-1.8 offers the lowest guaranteed standby current at 1.8V and JEDEC-standard SOIC packaging for maximum assembly flexibility and legacy board compatibility.
Availability
AT24C04AN-10SC-1.8 is available at Aetrix Electronics and suitable for smart metering, industrial PLC expansion, wearable health sensors, and automotive body control units requiring stable component supply across extended product lifecycles.
Supply support for AT24C04AN-10SC-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 components, and nonvolatile memory solutions, with broad industrial and automotive qualification capabilities.
The AT24C04AN-10SC-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM family, designed specifically for cost-sensitive, low-power embedded systems requiring robust, standards-compliant I²C nonvolatile storage.
FAQ
What is the minimum operating voltage for the AT24C04AN-10SC-1.8?
The AT24C04AN-10SC-1.8 operates down to 1.8V, with full functionality including 100 kHz I²C communication, page writes, and hardware write protection. Below 1.8V, timing parameters and reliability are not guaranteed - design margins should maintain VCC ≥1.82V under worst-case load and temperature.
Does the AT24C04AN-10SC-1.8 support 400 kHz I²C operation at 1.8V?
No. The AT24C04AN-10SC-1.8 supports 400 kHz only at VCC ≥4.5V. At 1.8V, the maximum guaranteed clock frequency is 100 kHz per AC characteristics table - attempting 400 kHz may cause ACK failures or data corruption due to insufficient rise/fall time margins.
How does the Write Protect (WP) pin function on the AT24C04AN-10SC-1.8?
When WP is pulled high to VCC, the entire 4K-bit memory array is write-protected - all write attempts (byte or page) are ignored. When WP is grounded, full read/write access is enabled. No internal pull-up or pull-down exists; external biasing is mandatory for deterministic behavior.
What package type is used for the AT24C04AN-10SC-1.8?
The AT24C04AN-10SC-1.8 uses an 8-pin JEDEC SOIC package (designated 8S1), 0.150" wide, with gull-wing leads and 1.27 mm pitch. It is compatible with standard SOIC-8 footprints and reflow soldering profiles per J-STD-020.
Can the AT24C04AN-10SC-1.8 be used in automotive applications?
The base AT24C04AN-10SC-1.8 is rated for industrial temperature (−40°C to +85°C) and is widely deployed in automotive body electronics. For AEC-Q100 qualification, Microchip offers the AT24C04C variant - consult Microchip's automotive product matrix to confirm exact qualification status for your target vehicle subsystem.
AT24C04AN-10SC-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C04AN-10SC-1.8 FAQ
1.How can I place an order for AT24C04AN-10SC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04AN-10SC-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-10SC-1.8 reliable?
The price and inventory of AT24C04AN-10SC-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-10SC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C04AN-10SC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04AN-10SC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04AN-10SC-1.8?
AT24C04AN-10SC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04AN-10SC-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-10SC-1.8?
For technical support, including AT24C04AN-10SC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04AN-10SC-1.8 requirements.
6.How does Aetrix verify that AT24C04AN-10SC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C04AN-10SC-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-10SC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C04AN-10SC-1.8?
All AT24C04AN-10SC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04AN-10SC-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-10SC-1.8 part is unused and in its original packaging.
Return procedure for AT24C04AN-10SC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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