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Microchip Technology AT24C08A-10PC-2.7
- Part No.:
- AT24C08A-10PC-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C08A-10PC-2.7.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,618
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Product details
Overview
AT24C08A-10PC-2.7 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) I²C-compatible serial EEPROM with hardware write protection, low-voltage operation (2.7V to 5.5V), and 100 kHz maximum clock frequency. It features 16-byte page write capability, 1 million write cycles endurance, and 100-year data retention - deployed in embedded systems for parameter storage, calibration data logging, and configuration backup.
For engineers reviewing the AT24C08A-10PC-2.7 datasheet, AT24C08A-10PC-2.7 pinout, AT24C08A-10PC-2.7 application, or AT24C08A-10PC-2.7 equivalent, key selection considerations include its 2.7V–5.5V supply range, 8-pin PDIP package, WP-enabled hardware data protection, and compatibility with microcontroller I²C peripherals operating at ≤100 kHz in low-power industrial environments.
Technical Context
The AT24C08A-10PC-2.7 implements a standard two-wire I²C interface with open-drain SDA/SCL pins, Schmitt-triggered inputs for noise immunity, and bidirectional data transfer protocol compliant with I²C specification timing. Its internal architecture organizes memory into four 256-page blocks of 4 bytes each, requiring a 10-bit word address for random access.
Device addressing uses only the A2 pin (A0 and A1 are NC), enabling up to two AT24C08A devices on a single bus. Write protection is controlled by the WP pin: tied to VCC to lock the full 8K array, or grounded for normal read/write operations - distinct from AT24C02A/04A's partial-array protection scheme.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 × 8), organized as 4 blocks × 256 pages × 4 bytes - supports efficient page-wise updates without full-array erasure. |
| Supply Voltage Range | 2.7V to 5.5V - enables direct integration with 3.3V and 5V logic systems without level-shifting. |
| I²C Clock Frequency | 100 kHz max - compatible with legacy microcontrollers and low-power embedded hosts where high-speed I²C is not required. |
| Write Cycle Time | 10 ms max - defines minimum interval between successive write commands; impacts firmware timeout design and polling strategy. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - validated for long-life applications such as metering, industrial controllers, and medical device calibration storage. |
| ESD Protection | >3000V HBM - provides robust handling during board assembly and field service in unshielded environments. |
| Operating Temperature | 0°C to +70°C (Commercial grade) - suitable for indoor consumer, computing, and office equipment applications. |
Pinout & Package
AT24C08A-10PC-2.7 is supplied in an 8-lead, 0.300" wide plastic dual-inline package (PDIP), per JEDEC MS-001 BA. Pin 1 is marked with a notch or dot; leads are spaced 0.100" (2.54 mm) apart, with body width 0.300" (7.62 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No-connect (NC) for AT24C08A - must be left floating or tied to GND/VCC; unused in device addressing. |
| A1 | Address Input | No-connect (NC) for AT24C08A - not used in device address decoding; no electrical or functional role. |
| A2 | Device Address Bit | Hardwired address bit determining one of two possible I²C addresses (0x50 or 0x51); enables multi-device bus topology. |
| GND | Ground Reference | Primary return path for VCC and I/O signals; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | 2.7V–5.5V DC input; decoupling capacitor (0.1 µF ceramic) recommended within 10 mm of pin. |
| WP | Write Protect Control | Active-high hardware lock: VCC = full 8K array protected; GND = normal read/write access. |
| SCL | I²C Clock Input | Open-drain input synchronized to master clock; requires external pull-up resistor (typically 4.7 kΩ). |
| SDA | I²C Data I/O | Bidirectional open-drain line shared across I²C bus; requires same pull-up as SCL and wire-OR capability. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin enables full-array lock (VCC) or unlock (GND) - eliminates software-only vulnerabilities in safety-critical configuration storage. |
| Low-Voltage Operation | 2.7V minimum VCC allows direct interfacing with 3.3V microcontrollers and battery-backed systems without regulator overhead. |
| 16-Byte Page Write | Reduces I²C transaction count vs. byte writes - cuts firmware execution time and bus occupancy for bulk parameter updates. |
| Noise-Immune Inputs | Schmitt-triggered SCL/SDA with 100 ns noise suppression - ensures reliable communication in electrically noisy industrial enclosures. |
| Self-Timed Write Cycle | Internal 10 ms timer eliminates need for precise host delay loops; ACK polling provides deterministic completion detection. |
Applications
| Industrial Sensor Calibration | Consumer Appliance Configuration |
|---|---|
Use Scenario: Storing factory-calibrated sensor offsets and gain coefficients in temperature/humidity transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent calibration parameters accessed at power-up by MCU firmware. Use Value: Enables field-replaceable sensors without recalibration; leverages 100-year retention and 1M-cycle endurance for lifetime recalibration support. |
Use Scenario: Saving user-selected settings (e.g., cooking mode, timer duration, display brightness) in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Parameter storage element interfaced via I²C to appliance MCU during standby or active operation. Use Value: Survives frequent power cycling and brownouts; 2.7V operation ensures reliable writes even during AC line sag events. |
| Networking Equipment Boot Parameters | Medical Device Usage Logs |
Use Scenario: Holding MAC address, IP configuration, and firmware version metadata in Ethernet switches and PoE injectors. IC Role / Device Role / Timing Role: Serial configuration memory mapped into MCU boot sequence for network stack initialization. Use Value: 100 kHz I²C speed matches legacy switch MCUs; WP pin prevents accidental overwrite during firmware updates. |
Use Scenario: Recording operational timestamps, error codes, and usage counters in portable diagnostic tools and infusion pumps. IC Role / Device Role / Timing Role: Tamper-resistant event logger storing time-stamped diagnostics accessible via service port. Use Value: >3000V HBM ESD rating withstands clinical environment handling; 100-year retention meets FDA long-term recordkeeping requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C08D-SSHM-T | Same 8K-bit capacity, 2.5V–5.5V supply, SOIC-8 package; higher 400 kHz I²C speed; no WP pin. | Lacks hardware write protection; suited for cost-sensitive designs where software-controlled lock suffices. | Select when higher-speed I²C and smaller footprint are prioritized over hardware-level data integrity assurance. |
| 24LC08B-I/P | 8K-bit, 2.5V–5.5V, PDIP-8; identical WP functionality and 100 kHz speed; Microchip rebrand of legacy part. | Same pinout and timing; minor revision differences in ESD rating (2500V vs. >3000V) and standby current (4 µA vs. 4 µA typical). | Drop-in replacement with identical mechanical and electrical behavior; verified compatibility in existing AT24C08A-10PC-2.7 designs. |
Compared with AT24C08D-SSHM-T and 24LC08B-I/P, the AT24C08A-10PC-2.7 uniquely combines PDIP packaging, guaranteed >3000V HBM ESD, and full-array hardware write protection - making it optimal for legacy industrial PCBs requiring field-serviceable reliability and physical tamper resistance.
Availability
AT24C08A-10PC-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, consumer appliance configuration, networking equipment boot parameters, and medical device usage logs requiring stable component supply across extended production lifecycles.
Supply support for AT24C08A-10PC-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 is a global semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions, with a focus on embedded control and connectivity.
The AT24C08A-10PC-2.7 belongs to Microchip's legacy AT24Cxx family of I²C EEPROMs, designed specifically for low-power, space-constrained applications requiring reliable, byte-addressable nonvolatile storage in commercial-temperature environments.
FAQ
What is the maximum I²C clock frequency supported by AT24C08A-10PC-2.7?
The AT24C08A-10PC-2.7 supports a maximum I²C clock frequency of 100 kHz under its 2.7V–5.5V operating range. This is specified in the AC Characteristics table for 2.7-, 2.5-, and 1.8-volt versions. It does not support the 400 kHz mode available in the 5.0V variant (e.g., AT24C08A-10PC). Firmware must configure the host controller accordingly.
How many devices can share the same I²C bus with AT24C08A-10PC-2.7?
Up to two AT24C08A-10PC-2.7 devices can coexist on a single I²C bus. This is because only the A2 pin is used for device addressing (A0 and A1 are NC), providing one configurable address bit - yielding two possible 7-bit slave addresses: 0x50 and 0x51. No additional address lines are available for expansion.
What happens when the WP pin of AT24C08A-10PC-2.7 is connected to VCC?
When the WP pin of AT24C08A-10PC-2.7 is connected to VCC, the entire 8K-bit memory array is write-protected. All write attempts - including byte writes, page writes, and sequential writes - will be ignored. Only read operations remain functional. This hardware lock cannot be overridden by I²C commands.
Is AT24C08A-10PC-2.7 compatible with 3.3V microcontrollers?
Yes, AT24C08A-10PC-2.7 is fully compatible with 3.3V microcontrollers. Its 2.7V–5.5V supply range covers standard 3.3V logic levels, and its I²C interface uses open-drain outputs with Schmitt-triggered inputs - ensuring reliable signal recognition and noise immunity when pulled up to 3.3V.
What package type is used for AT24C08A-10PC-2.7?
AT24C08A-10PC-2.7 uses an 8-lead, 0.300" wide plastic dual-inline package (PDIP), designated as 8P3 in Microchip's ordering nomenclature. This through-hole package is suitable for prototyping, legacy board designs, and applications requiring manual soldering or socket-based field upgrades.
AT24C08A-10PC-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:
- 4.5 µs
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C08A-10PC-2.7 FAQ
1.How can I place an order for AT24C08A-10PC-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08A-10PC-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 AT24C08A-10PC-2.7 reliable?
The price and inventory of AT24C08A-10PC-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 AT24C08A-10PC-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C08A-10PC-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08A-10PC-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08A-10PC-2.7?
AT24C08A-10PC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08A-10PC-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 AT24C08A-10PC-2.7?
For technical support, including AT24C08A-10PC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08A-10PC-2.7 requirements.
6.How does Aetrix verify that AT24C08A-10PC-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C08A-10PC-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 AT24C08A-10PC-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C08A-10PC-2.7?
All AT24C08A-10PC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08A-10PC-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 AT24C08A-10PC-2.7 part is unused and in its original packaging.
Return procedure for AT24C08A-10PC-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C08A-10PC-2.7 Tags
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M24C02-WMN6TP
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AT21CS01-STUM10-T
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