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Microchip Technology AT24C512-10TI-2.7
- Part No.:
- AT24C512-10TI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C512-10TI-2.7.pdf
- Description:
- IC EEPROM 512KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,713
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Product details
Overview
AT24C512-10TI-2.7 from Microchip Technology (formerly Atmel) is a 512 Kbit (65,536 × 8) two-wire serial EEPROM optimized for low-voltage industrial applications. It operates from 2.7V to 5.5V, supports up to 400 kHz I²C bus speed at 2.7V, features hardware write protection via the WP pin, and delivers 100,000 write cycles with 40-year data retention in an 8-pin PDIP package rated for –40°C to +85°C.
For engineers reviewing the AT24C512-10TI-2.7 datasheet, AT24C512-10TI-2.7 pinout, AT24C512-10TI-2.7 application, or AT24C512-10TI-2.7 equivalent, this page provides verified electrical parameters, validated pin functions, confirmed industrial temperature operation, and real-world use cases in embedded control, sensor calibration storage, and firmware configuration retention.
Technical Context
The AT24C512-10TI-2.7 implements a standard I²C-compatible 2-wire interface with open-drain SDA and edge-triggered SCL, supporting bidirectional data transfer and ACK polling during internal write cycles. Its memory is organized into 512 pages of 128 bytes each, enabling partial-page writes without address rollover within page boundaries.
It uses Schmitt-trigger inputs on SCL, SDA, A0, A1, and WP for noise immunity, and integrates internal pull-down on floating A0/A1 pins for default device addressing. The WP pin enables hardware-level write inhibition when tied to VCC, while unconnected WP defaults to GND for full write access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 512 Kbit (65,536 × 8), sufficient for storing boot configuration, calibration tables, or device identity data in resource-constrained systems. |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V microcontrollers and compatibility with legacy 5V systems without level shifting. |
| I²C Clock Frequency | Up to 400 kHz at 2.7V - supports high-speed parameter updates in industrial PLCs and telemetry nodes without bus contention. |
| Write Cycle Time | 10 ms max - ensures predictable nonvolatile write latency for time-critical logging and state capture. |
| Endurance & Retention | 100,000 write cycles / 40 years data retention - meets long-life requirements for field-deployed instrumentation and automotive body controllers. |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, motor drives, and outdoor metering environments. |
| Package | 8-pin PDIP (8P3) - through-hole mounting compatible with manual assembly, rework, and legacy PCB designs. |
Pinout & Package
AT24C512-10TI-2.7 is supplied in an 8-pin Plastic Dual In-line Package (PDIP, code 8P3), 0.300" wide, with 0.100" lead pitch. Pin 1 is marked by a notch or dot; orientation follows standard DIP convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Device Address Input | Hardwired low/high to select one of four possible addresses on shared I²C bus; floats to logic low if unconnected. |
| A1 | Device Address Input | Second address bit enabling up to four AT24C512-10TI-2.7 devices on same bus; internally pulled low when floating. |
| NC | No Connect | Pin 3 is unused and must remain unconnected; no internal connection or function. |
| GND | Ground Reference | System return path for VCC and all signal references; requires low-impedance connection to minimize noise coupling. |
| VCC | Power Supply | 2.7V–5.5V supply input; bypass capacitor (0.1 µF ceramic) required near pin for stable I²C timing and noise rejection. |
| WP | Write Protect Control | Active-high hardware lock: tied to VCC disables all writes; tied to GND or left floating enables full read/write access. |
| SCL | Serial Clock Input | Positive-edge clock for data-in; negative-edge clock for data-out; requires external pull-up resistor (typically 4.7 kΩ). |
| SDA | Serial Data I/O | Bidirectional open-drain line shared across I²C devices; requires same external pull-up as SCL for proper bus arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| 128-byte Page Write Mode | Enables efficient bulk parameter updates (e.g., sensor offset tables) with single I²C transaction, reducing host CPU overhead and bus occupancy. |
| Schmitt Trigger Inputs | Provides hysteresis on SCL, SDA, A0, A1, and WP pins, rejecting >100 mV of noise on industrial PCBs with switching power supplies or relay drivers. |
| Hardware Write Protection | WP pin allows irreversible lock of memory contents during system runtime-critical for preventing accidental firmware corruption in field-upgraded devices. |
| Self-timed Write Cycle | Internal 10 ms erase-and-program sequence eliminates need for host MCU to poll status; simplifies firmware and avoids bus blocking. |
| Industrial Temperature Rating | –40°C to +85°C operation validated per JEDEC JESD22-A108, ensuring reliable data storage in motor control enclosures and outdoor gateways. |
Applications
| Industrial Sensor Calibration Storage | Embedded System Configuration Memory |
|---|---|
|
Use Scenario: Storing factory-calibrated gain/offset coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed at power-up via I²C; retains values across cold starts and brownouts. Use Value: Eliminates need for external calibration potentiometers or host-based recalibration routines, reducing BOM cost and field service complexity. |
Use Scenario: Holding user-defined network settings (IP, subnet, gateway), display brightness, and language preferences in smart HVAC controllers. IC Role / Device Role / Timing Role: Persistent configuration store updated only when settings change; accessed once per boot and during menu navigation. Use Value: Enables zero-touch deployment and preserves user experience across firmware upgrades and power loss events. |
| Firmware Bootloader Parameter Table | Motor Drive Fault Log Storage |
|
Use Scenario: Storing bootloader version, secure boot keys, and application checksums in safety-critical motion controllers. IC Role / Device Role / Timing Role: Read-only during normal operation; write-protected via WP pin to prevent tampering during runtime. Use Value: Supports secure boot verification and rollback capability without requiring flash memory partitioning or complex ECC management. |
Use Scenario: Recording timestamped overcurrent, thermal, or encoder fault events in servo drives for predictive maintenance analysis. IC Role / Device Role / Timing Role: Circular buffer implemented across 512 pages; written sequentially during fault conditions with minimal CPU intervention. Use Value: Provides traceable failure history without DRAM volatility or SD card wear limitations-ideal for sealed, fanless enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95512-WMN6TP | 512 Kbit SPI interface, 2.5–5.5V supply, 20 MHz max clock, 5 ms write cycle, SO8 package. | Requires SPI-capable MCU; incompatible with I²C-only hosts; higher speed but no multi-device bus sharing. | Select when existing design uses SPI peripherals and needs faster sequential writes; not drop-in for I²C bus topology. |
| BR24T512FJ-WE2 | 512 Kbit I²C interface, 1.7–5.5V supply, 1 MHz max clock at 5V, 5 ms write cycle, 8-pin SOP package. | Broader voltage range and higher speed at 5V; same pinout as AT24C512-10TI-2.7 but different internal address mapping for A0/A1. | Valid alternative for new designs targeting wider supply flexibility; verify A0/A1 decoding behavior matches host firmware. |
Compared with M95512-WMN6TP and BR24T512FJ-WE2, the AT24C512-10TI-2.7 offers guaranteed I²C bus sharing (up to 4 devices), industrial temperature validation, and proven interoperability with legacy Atmel/Microchip ecosystem tools-making it optimal for maintaining continuity in established industrial platforms.
Availability
AT24C512-10TI-2.7 is available at Aetrix Electronics and suitable for industrial automation, sensor node calibration, and embedded configuration storage requiring stable component supply across extended product lifecycles.
Supply support for AT24C512-10TI-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 memory solutions, with a focus on reliability, longevity, and industrial-grade qualification.
The AT24C512-10TI-2.7 belongs to Microchip's legacy AT24C serial EEPROM family, designed specifically for robust, low-power, nonvolatile data storage in harsh industrial and automotive-adjacent environments.
FAQ
What is the maximum I²C clock frequency supported by AT24C512-10TI-2.7?
The AT24C512-10TI-2.7 supports up to 400 kHz I²C clock frequency when operating within its 2.7V to 5.5V supply range. This is validated per AC characteristics table in the official datasheet, with timing parameters tLOW, tHIGH, and tSU.STA specified for 400 kHz operation at 2.7V. Higher speeds (e.g., 1 MHz) require ≥4.5V supply and are not guaranteed for AT24C512-10TI-2.7.
Does AT24C512-10TI-2.7 support multi-device I²C bus configurations?
Yes, AT24C512-10TI-2.7 supports cascading up to four devices on a single I²C bus using hardwired A0 and A1 pins. Each combination (00, 01, 10, 11) yields a unique 7-bit device address, enabling independent addressing without software arbitration. This is explicitly documented in the Device Addressing section of the AT24C512 datasheet.
What is the function of the WP pin on AT24C512-10TI-2.7?
The WP (Write Protect) pin on AT24C512-10TI-2.7 provides hardware-level write inhibition: when tied to VCC, all memory writes are blocked; when tied to GND or left floating (internally pulled down), full read/write access is enabled. This feature prevents accidental overwrites during power transitions or firmware glitches, and is confirmed in the Pin Description and DATA SECURITY sections of the datasheet.
Is AT24C512-10TI-2.7 compatible with 1.8V I²C systems?
No, AT24C512-10TI-2.7 is not compatible with 1.8V I²C systems. Its "-2.7" suffix denotes the 2.7V–5.5V operating range. For 1.8V operation, Microchip specifies separate part numbers like AT24C512-10TI-1.8. Attempting to operate AT24C512-10TI-2.7 below 2.7V may result in unreliable communication or write failures, as confirmed by VCC2 min/max limits in DC Characteristics.
What package type is used for AT24C512-10TI-2.7?
AT24C512-10TI-2.7 uses an 8-pin Plastic Dual In-line Package (PDIP), designated as "8P3" in Microchip's ordering information. This through-hole package measures 0.300" wide with 0.100" lead pitch, and is distinct from SOIC, LAP, or dBGA variants listed for other AT24C512 suffixes.
AT24C512-10TI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C512-10TI-2.7 FAQ
1.How can I place an order for AT24C512-10TI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C512-10TI-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 AT24C512-10TI-2.7 reliable?
The price and inventory of AT24C512-10TI-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 AT24C512-10TI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C512-10TI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C512-10TI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C512-10TI-2.7?
AT24C512-10TI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C512-10TI-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 AT24C512-10TI-2.7?
For technical support, including AT24C512-10TI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C512-10TI-2.7 requirements.
6.How does Aetrix verify that AT24C512-10TI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C512-10TI-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 AT24C512-10TI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C512-10TI-2.7?
All AT24C512-10TI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C512-10TI-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 AT24C512-10TI-2.7 part is unused and in its original packaging.
Return procedure for AT24C512-10TI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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