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Microchip Technology AT24C08-10PI-2.7
- Part No.:
- AT24C08-10PI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C08-10PI-2.7.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,298
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Product details
Overview
AT24C08-10PI-2.7 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) serial EEPROM IC optimized for low-voltage embedded systems. It operates from 2.7V to 5.5V, supports 400 kHz I²C bus speed at ≥2.7V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention. It is used in industrial control panels for parameter storage and calibration data backup.
For engineers reviewing the AT24C08-10PI-2.7 datasheet, AT24C08-10PI-2.7 pinout, AT24C08-10PI-2.7 application, or AT24C08-10PI-2.7 equivalent, key selection considerations include its 8-lead PDIP package, 10-bit addressing, 16-byte page write capability, and automotive-grade temperature range (–40°C to +85°C).
Technical Context
The AT24C08-10PI-2.7 implements a standard two-wire I²C-compatible interface with open-drain SDA and Schmitt-triggered SCL inputs for noise immunity. It uses a fixed 7-bit device address (1010xxx) with A2 as the only active hardware address pin - A0 and A1 are no-connects - enabling up to two devices on a shared bus.
Internally organized as 64 pages of 16 bytes each, it supports byte and page write modes, with self-timed internal write cycles (≤5 ms). Its WP pin enables hardware-level write protection of the full memory array when pulled high, while standby current is 1.6 µA typical at VCC = 2.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8 bits), organized as 64 pages × 16 bytes - enables efficient firmware configuration storage with page-aligned updates. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with 3.3V and 5V logic domains without level shifting. |
| I²C Clock Frequency | Up to 400 kHz at VCC ≥ 2.7V - supports fast parameter loading in real-time systems. |
| Write Cycle Time | Max 5 ms - defines minimum inter-write delay; critical for time-critical logging sequences. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - suitable for field-updatable calibration tables in industrial equipment. |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient environments without derating. |
| Package | 8-lead PDIP (8P3), 0.300" wide - through-hole mounting for prototyping, legacy PCBs, and high-reliability test fixtures. |
Pinout & Package
AT24C08-10PI-2.7 uses an 8-lead Plastic Dual Inline Package (PDIP, type 8P3) with standard through-hole footprint. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect (NC) | Not bonded internally; must be left unconnected per datasheet - floating or tied has no effect. |
| A1 | No-connect (NC) | Not bonded internally; unused for device addressing in AT24C08 variant. |
| A2 | Device Address Input | Hard-wired address bit: determines one of two possible I²C addresses (10101xx or 10100xx) on shared bus. |
| GND | Ground Reference | Return path for all internal circuitry; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | 2.7–5.5 V supply input; bypass capacitor (0.1 µF ceramic) recommended near pin. |
| WP | Write Protect Control | Active-high hardware lock: ties memory to read-only mode when pulled to VCC; grounded for normal R/W. |
| SCL | Serial Clock Input | Positive-edge sampled clock for I²C transactions; Schmitt-triggered for robust noise rejection. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up (typically 2.2–10 kΩ) to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin enables fail-safe memory locking during power-up or fault conditions - prevents accidental overwrites in safety-critical settings. |
| 16-byte Page Write Mode | Allows burst writes within a single page boundary, reducing I²C transaction overhead by up to 94% vs. byte-by-byte writes. |
| Schmitt-trigger Inputs | SCL and WP inputs suppress noise-induced glitches - eliminates false starts/stops in electrically noisy factory-floor environments. |
| Low Standby Current | 1.6 µA typical at 2.7V - extends battery life in always-on monitoring nodes powered by coin cells or energy harvesters. |
| Automotive-Grade Qualification | Specified for –40°C to +85°C operation with 100-year data retention - meets long-lifecycle requirements of industrial automation hardware. |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Data Backup |
|---|---|
Use Scenario: Storing user-configurable I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter register bank accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field updates without firmware reflashing; retains settings across power loss and cold restarts. |
Use Scenario: Preserving sensor offset/gain coefficients and regulatory compliance logs in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for FDA-required calibration history with WP pin enforced during operation. Use Value: Meets IEC 62304 traceability requirements; eliminates need for external secure elements in Class II devices. |
| Smart Energy Meter Firmware Patch Log | Automotive Body Control Module Settings |
Use Scenario: Recording firmware patch version IDs and installation timestamps in utility-grade electricity meters. IC Role / Device Role / Timing Role: Sequential write buffer for immutable audit trail entries using page-write efficiency. Use Value: Supports remote OTA verification without risking corruption during brownout events. |
Use Scenario: Storing seat/mirror position presets, lighting profiles, and door lock behavior in BCMs. IC Role / Device Role / Timing Role: Low-power, high-endurance memory mapped into microcontroller's I²C peripheral space. Use Value: Survives 15+ year vehicle lifecycle with >500,000 write cycles - exceeds OEM endurance targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C08A-10PI-2.7 | Successor with enhanced ESD rating (4 kV HBM), same pinout and timing; recommended for new designs per datasheet note. | Identical use cases but improved robustness in high-static environments like assembly lines. | Select when designing new products requiring long-term supply assurance and higher reliability certification. |
| M24C08-RMN6TP | STMicroelectronics 8K EEPROM in 8-lead SOIC; supports 1 MHz I²C at 5V, 400 kHz at 2.5V; WP pin functional. | Same memory size and interface, but different DC specs (e.g., 3 µA standby at 2.7V) and AC timing margins. | Choose for multi-source procurement strategy where SOIC footprint is preferred over PDIP. |
Compared with AT24C08-10PI-2.7, the AT24C08A-10PI-2.7 offers documented ESD improvements without layout changes, while M24C08-RMN6TP provides faster bus speed at 5V but requires validation of timing margins in 2.7V systems.
Availability
AT24C08-10PI-2.7 is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, and smart metering applications requiring stable component supply across extended product lifecycles.
Supply support for AT24C08-10PI-2.7 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 support for the AT24C family of serial EEPROMs, emphasizing industrial reliability, long-term availability, and AEC-Q200 alignment.
The AT24C08 series targets cost-sensitive, space-constrained embedded systems needing nonvolatile storage for configuration, calibration, and event logging - especially where PDIP packaging simplifies prototyping and repair.
FAQ
What is the maximum I²C clock frequency supported by AT24C08-10PI-2.7?
The AT24C08-10PI-2.7 supports up to 400 kHz I²C clock frequency when operating at VCC ≥ 2.7V. At 1.8V operation (not applicable to this -2.7 suffix variant), the max frequency drops to 100 kHz. This timing is validated across the full –40°C to +85°C temperature range and ensures reliable communication with standard microcontroller I²C peripherals.
How many devices can share the same I²C bus with AT24C08-10PI-2.7?
Up to two AT24C08-10PI-2.7 devices can coexist on a single I²C bus. This is because only the A2 pin is used for hardware addressing (A0 and A1 are NC), yielding two possible device addresses: 10100xx and 10101xx. Each device must have A2 hard-wired to GND or VCC respectively to avoid address collision.
Does AT24C08-10PI-2.7 support partial page writes?
Yes, AT24C08-10PI-2.7 supports partial page writes: up to 16 bytes may be written in a single transaction, starting at any address within a 16-byte page boundary. If more than 16 bytes are sent, the address rolls over to the start of the same page, overwriting prior data - a behavior that must be managed in firmware.
What is the function of the WP pin on AT24C08-10PI-2.7?
The WP (Write Protect) pin on AT24C08-10PI-2.7 enables hardware-level memory locking. When WP is pulled high to VCC, all write operations (byte, page, and erase) are inhibited - only read operations remain functional. When WP is grounded, full read/write access is enabled. This provides deterministic protection against unintended writes during power transitions.
Is AT24C08-10PI-2.7 suitable for automotive applications?
AT24C08-10PI-2.7 is specified for industrial temperature range (–40°C to +85°C) and carries automotive-grade qualification per the datasheet's "Automotive Grade" note. While not AEC-Q200 certified out-of-box, its electrical specs, endurance, and packaging meet baseline requirements for body electronics; design-in validation is recommended for under-hood use.
AT24C08-10PI-2.7 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:
- 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C08-10PI-2.7 FAQ
1.How can I place an order for AT24C08-10PI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08-10PI-2.7 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 AT24C08-10PI-2.7 reliable?
The price and inventory of AT24C08-10PI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C08-10PI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C08-10PI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08-10PI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08-10PI-2.7?
AT24C08-10PI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08-10PI-2.7 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 AT24C08-10PI-2.7?
For technical support, including AT24C08-10PI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08-10PI-2.7 requirements.
6.How does Aetrix verify that AT24C08-10PI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C08-10PI-2.7 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 AT24C08-10PI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C08-10PI-2.7?
All AT24C08-10PI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08-10PI-2.7, 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 AT24C08-10PI-2.7 part is unused and in its original packaging.
Return procedure for AT24C08-10PI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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