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Microchip Technology AT24C02-10PC-1.8
- Part No.:
- AT24C02-10PC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C02-10PC-1.8.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,342
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Product details
Overview
AT24C02-10PC-1.8 from Microchip Technology (formerly Atmel) is a 2K-bit (256 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage embedded systems. It operates from 1.8V to 5.5V, supports 100 kHz I²C bus timing 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 sensor nodes and portable medical devices.
For engineers reviewing the AT24C02-10PC-1.8 datasheet, AT24C02-10PC-1.8 pinout, AT24C02-10PC-1.8 application, or AT24C02-10PC-1.8 equivalent, key selection criteria include 1.8V minimum supply compatibility, 8-byte page write capability, SOIC-8 packaging, Schmitt-triggered noise-immune inputs, and industrial-grade temperature support (-40°C to +85°C) per ordering code suffix.
Technical Context
The AT24C02-10PC-1.8 implements a two-wire I²C interface with open-drain SDA/SCL pins, internal address decoding via A0–A2 pins (hardwired for 2K device), and automatic page-address rollover during multi-byte writes. Its memory is organized as 32 pages of 8 bytes each, requiring an 8-bit word address for random access.
It uses a self-timed internal write cycle (max 10 ms), supports acknowledge polling for write completion detection, and includes Schmitt-triggered inputs with built-in noise filtering - enabling reliable operation in electrically noisy industrial control environments where supply voltage may dip to 1.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8 bits), organized as 32 pages × 8 bytes - enables compact firmware parameter storage without external address latches. |
| Supply Voltage Range | 1.8V to 5.5V - supports direct interfacing with 1.8V logic families and mixed-voltage systems without level shifters. |
| I²C Clock Frequency | 100 kHz maximum at 1.8V - ensures timing compliance in low-power microcontroller designs with reduced clock drive strength. |
| Write Cycle Time | 10 ms max - defines minimum interval between successive byte/page writes; impacts real-time logging latency. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - meets long-life requirements for field-deployed IoT edge devices. |
| Standby Current | 3 µA max at 1.8V - minimizes quiescent power draw in always-on battery-backed applications. |
| Operating Temperature | -40°C to +85°C - qualified for industrial ambient conditions without derating. |
Pinout & Package
AT24C02-10PC-1.8 is supplied in an 8-lead JEDEC-standard SOIC package (package code 8S1), measuring 4.9 mm × 3.9 mm × 1.75 mm, with gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Device Address Inputs | Hardwired address bits allowing up to eight AT24C02 devices on one I²C bus; all three are functional for 2K variant. |
| SDA | Serial Data I/O | Open-drain bidirectional line - requires external pull-up; shares bus with other I²C peripherals via wired-AND topology. |
| SCL | Serial Clock Input | Positive-edge sampled clock input - controls data transfer timing; master-generated, not internally generated. |
| WP | Write Protect Control | Hardware-enabled lock: tied to VCC to protect full 2K array from accidental writes; grounded for normal R/W operation. |
| VCC | Power Supply | Primary supply input - accepts 1.8V–5.5V; decoupling capacitor required within 10 mm for stable low-voltage operation. |
| GND | Ground Reference | System ground return path - must be low-impedance and co-located with VCC decoupling for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V–5.5V Wide-Voltage Operation | Eliminates need for voltage translators when interfacing with 1.8V MCUs like STM32L0/L4 or MSP430FRxx. |
| 8-Byte Page Write Capability | Reduces I²C transaction overhead by up to 8× vs. byte-write mode - critical for burst configuration updates. |
| Schmitt-Triggered, Filtered Inputs | Rejects >100 ns noise spikes on SDA/SCL - improves robustness in motor-drive or relay-switching environments. |
| Hardware Write Protection (WP) | Prevents firmware corruption during brown-out or reset sequences without software intervention. |
| 100-Year Data Retention | Validated at 85°C - ensures calibration data integrity over full product lifecycle in unattended deployments. |
Applications
| Smart Energy Meters | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Storing tariff tables, meter calibration constants, and event logs across power cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed write integrity during grid voltage sags. Use Value: Enables Class 0.5 accuracy compliance via persistent calibration offsets, even after 10+ years of field operation. |
Use Scenario: Holding module identification, channel scaling factors, and fault history in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Parameter EEPROM interfaced to ARM Cortex-M7 host via I²C at 100 kHz under 1.8V IO domain. Use Value: Reduces BOM count by eliminating separate backup battery and SRAM - lowers total cost per I/O point. |
| Portable Medical Sensors | Automotive Body Control Units |
Use Scenario: Saving patient-specific settings and usage counters in Bluetooth-enabled glucose monitors. IC Role / Device Role / Timing Role: Low-power 1.8V EEPROM accessed during brief wake-up intervals of ultra-low-power MCU. Use Value: Achieves <1 µA average system current during sleep - extends coin-cell battery life beyond 2 years. |
Use Scenario: Storing seat position memory, mirror presets, and door lock configuration in 12V vehicle subsystems. IC Role / Device Role / Timing Role: Robust I²C slave with WP pin tied to ignition-sensed enable signal to prevent spurious writes during cranking. Use Value: Meets AEC-Q100 stress test requirements for EEPROM endurance under automotive thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C02-RMN6TP | STMicroelectronics 2K I²C EEPROM; 1.7V–5.5V range; 400 kHz @ 5V but only 100 kHz @ 1.8V - identical timing at target voltage. | Same SOIC-8 footprint and pinout; supports same industrial temp grade (-40°C to +85°C). | Select when dual-sourcing required; validated drop-in replacement for AT24C02-10PC-1.8 in existing layouts. |
| BR24G02-3MNUX | Rohm 2K I²C EEPROM; 1.6V–5.5V range; 1 MHz max clock (at ≥2.5V), but limited to 100 kHz at 1.8V - matches AT24C02-10PC-1.8 performance ceiling. | Same 8-pin TSSOP/SOIC packages; includes built-in write-cycle arbitration and enhanced ESD protection (±8 kV HBM). | Choose for higher ESD immunity in handheld diagnostic tools or factory-floor test equipment. |
Compared with M24C02-RMN6TP and BR24G02-3MNUX, the AT24C02-10PC-1.8 offers proven qualification history in industrial automation and longer field reliability data - making it preferred for safety-critical parameter storage where change control rigor is mandated.
Availability
AT24C02-10PC-1.8 is available at Aetrix Electronics and suitable for industrial PLCs, portable medical sensors, and smart energy meters requiring stable component supply across extended product lifecycles.
Supply support for AT24C02-10PC-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 acquired Atmel in 2016 and maintains full technical and manufacturing continuity for the AT24Cxx EEPROM family.
The AT24Cxx series was designed specifically for reliable, low-voltage nonvolatile storage in space-constrained embedded systems - emphasizing write endurance, data retention, and noise-immune I²C interoperability.
FAQ
What is the maximum I²C clock frequency supported by AT24C02-10PC-1.8 at 1.8V?
The AT24C02-10PC-1.8 supports a maximum I²C clock frequency of 100 kHz when operating at 1.8V. This is specified in the AC Characteristics table under "2.7-, 2.5-, 1.8-volt" conditions. The device does not support 400 kHz operation below 2.5V - that speed is only guaranteed at VCC ≥ 2.5V per the datasheet's fSCL specification.
Does AT24C02-10PC-1.8 support partial page writes?
Yes, AT24C02-10PC-1.8 supports partial page writes. As a 2K device, it has 32 pages of 8 bytes each. The datasheet explicitly states "Partial Page Writes are Allowed", meaning fewer than 8 bytes can be written within a single page boundary without triggering wraparound - essential for efficient small-parameter updates.
What package type is used for AT24C02-10PC-1.8?
AT24C02-10PC-1.8 uses an 8-lead JEDEC SOIC package (package code 8S1), also referred to as "plastic gull wing small outline". Its dimensions are 4.9 mm × 3.9 mm × 1.75 mm with 1.27 mm lead pitch. The 'PC' suffix in the part number denotes this SOIC packaging variant.
How does the Write Protect (WP) pin function on AT24C02-10PC-1.8?
On AT24C02-10PC-1.8, the WP pin provides hardware-level write protection: when pulled high to VCC, it locks the entire 2K memory array against write operations (including page and byte writes); when grounded, full read/write functionality is enabled. This behavior is confirmed in the WP Pin Status table for the 24C02 device.
Is AT24C02-10PC-1.8 rated for industrial temperature range?
Yes, AT24C02-10PC-1.8 is rated for the industrial temperature range of -40°C to +85°C. This is confirmed by its ordering code suffix '-10PC-1.8', where the '-10' prefix indicates 10 ms max write time and commercial/industrial grading, and the 'PC' package designation aligns with industrial-grade variants listed in the AT24C02 Ordering Information table.
AT24C02-10PC-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C02-10PC-1.8 FAQ
1.How can I place an order for AT24C02-10PC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C02-10PC-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 AT24C02-10PC-1.8 reliable?
The price and inventory of AT24C02-10PC-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 AT24C02-10PC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C02-10PC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C02-10PC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C02-10PC-1.8?
AT24C02-10PC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C02-10PC-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 AT24C02-10PC-1.8?
For technical support, including AT24C02-10PC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C02-10PC-1.8 requirements.
6.How does Aetrix verify that AT24C02-10PC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C02-10PC-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 AT24C02-10PC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C02-10PC-1.8?
All AT24C02-10PC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C02-10PC-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 AT24C02-10PC-1.8 part is unused and in its original packaging.
Return procedure for AT24C02-10PC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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