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Microchip Technology AT24C08N-10SI-1.8
- Part No.:
- AT24C08N-10SI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C08N-10SI-1.8.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,311
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Product details
Overview
AT24C08N-10SI-1.8 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) I²C-compatible serial EEPROM optimized for 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. It is widely used in industrial sensor calibration storage and power-management configuration memory.
For engineers reviewing the AT24C08N-10SI-1.8 datasheet, AT24C08N-10SI-1.8 pinout, AT24C08N-10SI-1.8 application, or AT24C08N-10SI-1.8 equivalent, this page provides verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options - all grounded in the official Microchip AT24C01A/02/04/08/16 datasheet (0180R–SEEPR–4/04).
Technical Context
The AT24C08N-10SI-1.8 implements a standard two-wire I²C interface with open-drain SDA and active-high SCL, supporting standard-mode (100 kHz) operation at 1.8V supply. Its internal architecture organizes 1024 words of 8-bit data across 64 pages of 16 bytes each, enabling 16-byte page writes with automatic address incrementing within the same page.
Device addressing uses only the A2 pin (A1 and A0 are NC), allowing up to two AT24C08 devices on a single I²C bus. The WP pin enables hardware-level write protection: tied to VCC, it locks the upper half (4K) of the 8K array; tied to GND, full read/write access is granted - a critical feature for firmware-safe parameter storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8 bits), organized as 64 pages × 16 bytes - supports efficient block writes without external address management. |
| Supply Voltage | 1.8V to 5.5V - enables direct interfacing with 1.8V logic microcontrollers and mixed-voltage systems without level shifters. |
| I²C Clock Frequency | 100 kHz at 1.8V - ensures reliable timing margins in low-power, noise-sensitive applications like battery-powered IoT nodes. |
| Write Cycle Time | Max 5 ms - defines minimum delay between write commands; impacts firmware polling or interrupt-driven completion handling. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - qualifies for long-life industrial deployments requiring infrequent but mission-critical updates. |
| Operating Temperature | −40°C to +85°C - certified for industrial-grade environments including factory automation and automotive body control modules. |
| Write Protect Function | Hardware-enabled via WP pin - protects upper 4K (0x200–0x7FF) when pulled high, preserving critical configuration while allowing runtime logging in lower 4K. |
Pinout & Package
AT24C08N-10SI-1.8 is supplied in an 8-lead JEDEC SOIC (8S1) package: 0.150" wide, gull-wing leads, RoHS-compliant, with standard pin 1 marking (dot or bevel). Dimensions per JEDEC MS-012, Variation AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Device Address Input | No-connect (NC) for AT24C08 - must be left floating or tied to GND/VCC; unused in address decoding. |
| A1 | Device Address Input | No-connect (NC) for AT24C08 - not part of device address; no electrical or functional role. |
| A2 | Device Address Input | Hard-wired address bit - determines one of two possible I²C addresses (0x50 or 0x51) on shared bus. |
| GND | Ground Reference | System return path for VCC and I/O; must be low-impedance to ensure noise immunity on SDA/SCL lines. |
| VCC | Power Supply | 1.8V–5.5V input - powers internal logic and memory array; decoupling capacitor (0.1 µF) required near pin. |
| WP | Write Protect Control | Active-high enable - when high, blocks writes to upper 4K (0x200–0x7FF); essential for fail-safe configuration locking. |
| SCL | Serial Clock Input | Positive-edge clock for data sampling - requires external pull-up; max frequency 100 kHz at 1.8V. |
| SDA | Serial Data I/O | Open-drain bidirectional bus line - requires external pull-up; supports multi-master arbitration and wire-OR topology. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs with noise filtering | Rejects >100 ns glitches on SCL/SDA - eliminates false start/stop detection in electrically noisy industrial enclosures. |
| 16-byte page write capability | Reduces I²C transaction overhead by 16× vs. byte writes - accelerates firmware update or sensor log batch writes. |
| Self-timed internal write cycle | Automatically manages erase/write timing - relieves host MCU of precise delay timing; simplifies driver implementation. |
| Bi-directional I²C protocol compliance | Fully adheres to Philips I²C specification - guarantees interoperability with standard Linux i2c-tools, Arduino Wire, and RTOS drivers. |
| Industrial temperature range (−40°C to +85°C) | Validated operation across full range - suitable for uncontrolled ambient environments such as outdoor metering or motor drives. |
Applications
| Smart Energy Meter Calibration | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing meter-specific calibration coefficients and tariff tables that must survive power loss and field updates. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed via I²C during boot and maintenance mode; WP pin locked during normal operation. Use Value: Enables field-reprogrammable accuracy without replacing hardware; 1M endurance supports decades of recalibration cycles. |
Use Scenario: Holding I/O mapping, PID tuning parameters, and safety thresholds in programmable logic controllers deployed in factories. IC Role / Device Role / Timing Role: Persistent configuration register bank - read at startup, written only during commissioning or firmware upgrade. Use Value: Guarantees deterministic boot behavior and eliminates manual dip-switch configuration; WP prevents accidental overwrites. |
| Automotive Body Control Module | Medical Infusion Pump Settings |
Use Scenario: Saving user preferences (window position, mirror angle) and fault history logs in 12V vehicle subsystems with 1.8V microcontrollers. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 1.8V MCU I²C port; operates across automotive cold-crank voltage dips. Use Value: Eliminates level-shifter components; 1.8V compatibility reduces BOM cost and PCB area in space-constrained modules. |
Use Scenario: Storing drug library profiles, dose limits, and audit trails in battery-powered infusion pumps requiring regulatory-grade data integrity. IC Role / Device Role / Timing Role: Secure parameter vault - WP pin hardwired to prevent runtime modification; data retention validated to 100 years. Use Value: Meets IEC 62304 software lifecycle requirements for permanent storage; avoids costly revalidation due to memory failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C08A-SSHM-T (Microchip) | Successor device; identical 8K organization, same SOIC-8 package, but qualified for new designs per datasheet note. | Same industrial temperature range and 1.8V operation; adds enhanced ESD rating (4 kV HBM) and updated process reliability data. | Select AT24C08A-SSHM-T for new designs requiring long-term supply assurance and latest qualification data. |
| STMicroelectronics M24C08-RMN6TP (ST) | Pin-compatible 8K I²C EEPROM in SOIC-8; supports 1 MHz at 2.5–5.5V, but only 100 kHz at 1.8V - matches AT24C08N-10SI-1.8's low-voltage timing. | Qualified to AEC-Q100 Grade 2 (−40°C to +105°C); broader temp range than AT24C08N-10SI-1.8's industrial grade. | Choose M24C08-RMN6TP when extended temperature margin or automotive qualification is required alongside 1.8V support. |
Compared with AT24C08N-10SI-1.8, the AT24C08A-SSHM-T offers improved long-term manufacturability and updated reliability specs, while the M24C08-RMN6TP provides wider temperature coverage and automotive qualification - both retain identical pinout, memory map, and 1.8V I²C functionality for drop-in evaluation.
Availability
AT24C08N-10SI-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, PLC configuration storage, and automotive body control module designs requiring stable component supply and guaranteed long-term availability.
Supply support for AT24C08N-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 nonvolatile memory solutions, with a focus on robust, low-power, and secure embedded systems.
The AT24C08N-10SI-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM product line, designed specifically for cost-sensitive, space-constrained applications needing reliable, low-voltage, I²C-based nonvolatile storage in industrial and automotive environments.
FAQ
What is the maximum I²C clock frequency supported by AT24C08N-10SI-1.8 at 1.8V?
The AT24C08N-10SI-1.8 supports a maximum I²C clock frequency of 100 kHz when operating at 1.8V, as specified in the AC Characteristics table of the official datasheet (0180R–SEEPR–4/04). This is distinct from its 400 kHz capability at 2.5V and above. Designers must configure their I²C peripheral accordingly to avoid communication failures.
Is AT24C08N-10SI-1.8 pin-compatible with AT24C08A-SSHM-T?
Yes, AT24C08N-10SI-1.8 is pin-compatible with AT24C08A-SSHM-T: both use the same 8-lead JEDEC SOIC (8S1) package and identical pin functions (A2, WP, SCL, SDA, VCC, GND, A0/A1 as NC). However, AT24C08A-SSHM-T is the recommended successor for new designs per Microchip's datasheet notice.
How does the Write Protect (WP) pin function on AT24C08N-10SI-1.8?
On AT24C08N-10SI-1.8, the WP pin is active-high: when tied to VCC, it protects the upper half (4K) of the 8K memory array (addresses 0x200–0x7FF); when tied to GND, full read/write access is enabled. This allows selective locking of critical configuration data while permitting runtime logging in unprotected regions.
What is the memory page size and write mode capability of AT24C08N-10SI-1.8?
The AT24C08N-10SI-1.8 has a 16-byte page size and supports 16-byte page writes. This means up to 16 sequential bytes can be written in a single I²C transaction - significantly reducing bus overhead compared to byte-wise writes and improving firmware efficiency during bulk parameter updates.
Does AT24C08N-10SI-1.8 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C08N-10SI-1.8 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 commonly used for 100 kHz operation at 1.8V to ensure proper rise time and noise immunity.
AT24C08N-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:
- 8Kbit
- Memory Organization:
- 1K 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
AT24C08N-10SI-1.8 FAQ
1.How can I place an order for AT24C08N-10SI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08N-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 AT24C08N-10SI-1.8 reliable?
The price and inventory of AT24C08N-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 AT24C08N-10SI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C08N-10SI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08N-10SI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08N-10SI-1.8?
AT24C08N-10SI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08N-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 AT24C08N-10SI-1.8?
For technical support, including AT24C08N-10SI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08N-10SI-1.8 requirements.
6.How does Aetrix verify that AT24C08N-10SI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C08N-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 AT24C08N-10SI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C08N-10SI-1.8?
All AT24C08N-10SI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08N-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 AT24C08N-10SI-1.8 part is unused and in its original packaging.
Return procedure for AT24C08N-10SI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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