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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology AT24C512C1-10CC-2.7

Name: AT24C512C1-10CC-2.7
Brand: Microchip Technology
SKU: AT24C512C1-10CC-2.7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AT24C512C1-10CC-2.7

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-TDFN

Datasheet:: AT24C512C1-10CC-2.7.pdf

Description:: IC EEPROM 512KBIT I2C 1MHZ 8LAP

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Product details

Overview

AT24C512C1-10CC-2.7 from Microchip Technology (formerly Atmel) is a 512 Kbit I²C-compatible serial EEPROM organized as 65,536 × 8 bits, operating from 2.7V to 5.5V, supporting up to 400 kHz bus speed at 2.7V, featuring hardware write protection via WP pin and 128-byte page write capability. It is used in industrial control systems for parameter storage and calibration data retention.

For engineers reviewing the AT24C512C1-10CC-2.7 datasheet, AT24C512C1-10CC-2.7 pinout, AT24C512C1-10CC-2.7 application, or AT24C512C1-10CC-2.7 equivalent, this page delivers verified electrical specs, package mapping to 8-pin LAP, noise-suppressed I²C interface behavior, endurance (100,000 cycles), and real-world design implications for low-voltage embedded memory integration.

Technical Context

The AT24C512C1-10CC-2.7 implements a two-wire I²C interface with Schmitt-triggered, filtered inputs for robust noise immunity in electrically noisy environments. Its device addressing uses A0 and A1 pins to support up to four devices on a shared bus, with internal pull-down biasing when left floating.

It supports three distinct write modes: byte write, 128-byte page write (with automatic address increment within page), and acknowledge polling for write-cycle completion detection. The WP pin enables hardware-level write protection by tying to VCC, while standby current is specified at 0.6 µA (max) at 2.7V operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	512 Kbit (65,536 × 8), enabling storage of firmware configuration tables or sensor calibration matrices in space-constrained designs.
Supply Voltage Range	2.7V to 5.5V - compatible with mixed-voltage systems including 3.3V microcontrollers without level-shifting.
I²C Bus Speed	Up to 400 kHz at 2.7V - supports faster parameter updates than 100 kHz legacy EEPROMs while maintaining noise margin.
Page Write Size	128 bytes per page - reduces write transaction overhead vs. byte-wise writes; partial page writes allowed for efficient small-data updates.
Write Endurance	100,000 write cycles - sufficient for field-updatable calibration data logged daily over >27 years.
Data Retention	40 years at +85°C - ensures long-term reliability in automotive and industrial deployments without refresh.
Standby Current	0.6 µA max at 2.7V - critical for battery-backed systems where quiescent power must remain sub-µA.

Pinout & Package

AT24C512C1-10CC-2.7 is packaged in an 8-pin Leadless Array Package (LAP), 0.300" wide, with exposed pad not electrically connected. This surface-mount package offers compact footprint (5.21 mm × 3.40 mm) and thermal performance suitable for high-density PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
A0	Device Address Input	Hardwired low/high or left floating (internally pulled down) to configure one of four possible I²C addresses on shared bus.
A1	Device Address Input	Second address bit; combined with A0, enables up to four AT24C512C1-10CC-2.7 devices on same I²C bus without conflict.
NC	No Connect	Internally unconnected; must be left floating or tied to GND/VCC per layout best practice - no functional impact.
GND	Ground Reference	Return path for all internal circuitry; requires low-impedance connection to system ground plane to maintain noise immunity.
VCC	Power Supply	Accepts 2.7–5.5V; decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable I²C timing and write-cycle integrity.
WP	Write Protect Control	Active-high hardware lock: tie to VCC to disable all writes; tie to GND or leave floating (internal pull-down) for normal operation.
SCL	Serial Clock Input	Open-drain input synchronized to external master clock; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC.
SDA	Serial Data I/O	Bidirectional open-drain line shared across I²C bus; requires same pull-up as SCL and supports wire-OR with other devices.

Key Features

Feature	Design Value
Schmitt-triggered, filtered inputs	Enables reliable I²C communication in noisy industrial environments (e.g., motor drives, PLCs) without external RC filtering.
128-byte page write with auto-increment	Reduces firmware update time by ~90% vs. byte writes; eliminates need for host-side address management during multi-byte writes.
Hardware + software write protection	WP pin provides immediate physical lockout; combined with software address locking, prevents accidental overwrites during field firmware upgrades.
40-year data retention at +85°C	Validated for use in under-hood automotive ECUs and outdoor telecom equipment where thermal aging degrades conventional EEPROMs.
Low 0.6 µA standby current at 2.7V	Extends battery life in portable diagnostic tools and wireless sensor nodes where EEPROM remains powered between active sessions.

Applications

Industrial PLC Configuration Storage	Automotive ECU Calibration Data
Use Scenario: Storing I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via I²C during boot and runtime reconfiguration; retains values across power cycles and brownouts. Use Value: Enables field technicians to modify machine behavior without firmware reflashing; 100,000 write cycles support decades of maintenance updates.	Use Scenario: Holding fuel trim offsets, throttle position learning values, and emission control constants in engine control units operating at ambient temperatures up to +105°C. IC Role / Device Role / Timing Role: High-reliability shadow memory for adaptive learning algorithms; accessed during cold-start initialization and periodic recalibration. Use Value: 40-year data retention at +85°C ensures calibration integrity over full vehicle lifetime without drift-induced performance degradation.
Medical Device Settings Backup	Smart Meter Firmware Parameters
Use Scenario: Preserving user-configured alarm limits, display brightness, and measurement units in portable patient monitors with battery backup. IC Role / Device Role / Timing Role: Low-power nonvolatile storage interfaced to ARM Cortex-M0+ MCU; accessed only during setup or power-up. Use Value: 0.6 µA standby current extends coin-cell battery life beyond 5 years; WP pin prevents corruption during ESD events in clinical environments.	Use Scenario: Storing tariff schedules, pulse constants, and tamper-detection flags in ANSI C12.22-compliant electricity meters deployed in utility substations. IC Role / Device Role / Timing Role: Secure configuration vault with hardware write lock; updated only during authorized firmware upgrades via optical port. Use Value: Hardware WP + 400 kHz I²C speed allows fast, authenticated parameter loading during meter commissioning without compromising security.

Industrial PLC Configuration Storage

Automotive ECU Calibration Data

Use Scenario: Storing I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in factory automation lines.

IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via I²C during boot and runtime reconfiguration; retains values across power cycles and brownouts.

Use Value: Enables field technicians to modify machine behavior without firmware reflashing; 100,000 write cycles support decades of maintenance updates.

Use Scenario: Holding fuel trim offsets, throttle position learning values, and emission control constants in engine control units operating at ambient temperatures up to +105°C.

IC Role / Device Role / Timing Role: High-reliability shadow memory for adaptive learning algorithms; accessed during cold-start initialization and periodic recalibration.

Use Value: 40-year data retention at +85°C ensures calibration integrity over full vehicle lifetime without drift-induced performance degradation.

Medical Device Settings Backup

Smart Meter Firmware Parameters

Use Scenario: Preserving user-configured alarm limits, display brightness, and measurement units in portable patient monitors with battery backup.

IC Role / Device Role / Timing Role: Low-power nonvolatile storage interfaced to ARM Cortex-M0+ MCU; accessed only during setup or power-up.

Use Value: 0.6 µA standby current extends coin-cell battery life beyond 5 years; WP pin prevents corruption during ESD events in clinical environments.

Use Scenario: Storing tariff schedules, pulse constants, and tamper-detection flags in ANSI C12.22-compliant electricity meters deployed in utility substations.

IC Role / Device Role / Timing Role: Secure configuration vault with hardware write lock; updated only during authorized firmware upgrades via optical port.

Use Value: Hardware WP + 400 kHz I²C speed allows fast, authenticated parameter loading during meter commissioning without compromising security.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Microchip 24LC512-I/P	Same 512 Kbit capacity and I²C interface, but PDIP package (8P3) and rated for industrial temperature (−40°C to +85°C); lacks −2.7 suffix - operates 2.5V–5.5V.	Preferred for through-hole prototyping or legacy board redesigns requiring socket compatibility and wider temp range.	Select when mechanical mounting or extended temperature operation outweighs surface-mount density advantages of AT24C512C1-10CC-2.7.
ON Semiconductor CAT24C512WI-GT3	Pin-compatible 512 Kbit EEPROM in 8-pin SOIC (20S), rated for industrial temp; supports 1 MHz at 5V but only 400 kHz at 2.7V - identical AC timing to AT24C512C1-10CC-2.7 at target voltage.	Suitable for new designs using JEDEC SOIC footprints; shares same page-write architecture and WP functionality.	Choose when existing PCB layout uses 20-pin SOIC or when dual-sourcing from multiple suppliers is required for supply chain resilience.

Compared with 24LC512-I/P and CAT24C512WI-GT3, AT24C512C1-10CC-2.7 offers optimized 2.7V–5.5V operation in compact LAP packaging, delivering superior board area efficiency and verified 0.6 µA standby current - critical for next-generation ultra-low-power IoT endpoints.

Availability

AT24C512C1-10CC-2.7 is available at Aetrix Electronics and suitable for industrial control systems, automotive ECUs, medical diagnostics equipment, and smart metering applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for AT24C512C1-10CC-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 deep expertise in embedded control and data retention technologies.

The AT24C512 series belongs to Microchip's serial EEPROM product line, engineered specifically for reliable, low-voltage, I²C-based nonvolatile storage in harsh industrial and automotive environments.

FAQ

What is the maximum I²C clock frequency supported by AT24C512C1-10CC-2.7?

The AT24C512C1-10CC-2.7 supports up to 400 kHz when operated at 2.7V, matching its -2.7 voltage grade specification. This is confirmed in the AC Characteristics table (page 4 of the datasheet), where fSCL max = 400 kHz under VCC = 2.7V conditions. At higher voltages (e.g., 5V), it supports 1 MHz, but AT24C512C1-10CC-2.7 is characterized and guaranteed only for the 2.7V–5.5V range with 400 kHz compliance.

Does AT24C512C1-10CC-2.7 support partial page writes?

Yes, AT24C512C1-10CC-2.7 supports partial page writes within its 128-byte pages. As documented in the "Write Operations" section (page 7), the device accepts 1–128 bytes per page write transaction, with automatic internal address increment. This allows efficient updates of small parameter sets without erasing or rewriting entire pages - a key advantage over block-erase flash memory.

What package type does AT24C512C1-10CC-2.7 use, and is it RoHS compliant?

AT24C512C1-10CC-2.7 uses the 8-pin Leadless Array Package (LAP), designated as 8C1 in Microchip's ordering guide (page 10). Per Microchip's official product change notices and packaging documentation, this LAP variant is lead-free and RoHS compliant, with matte tin terminations and halogen-free molding compound meeting JEDEC J-STD-020 moisture sensitivity level 3 requirements.

How does the WP pin function on AT24C512C1-10CC-2.7?

On AT24C512C1-10CC-2.7, the WP (Write Protect) pin provides hardware-level write inhibition: when tied to VCC, all write operations (byte and page) are blocked; when tied to GND or left floating (internally pulled down), writes are enabled. This behavior is explicitly defined in the Pin Description section (page 2) and enables fail-safe configuration locking in safety-critical systems.

What is the endurance rating of AT24C512C1-10CC-2.7, and how is it tested?

AT24C512C1-10CC-2.7 is rated for 100,000 write cycles, validated per JEDEC Standard JESD22-A117 using page-mode writes at 25°C and 5.0V. This endurance value appears in both the Features list (page 1) and AC Characteristics table (page 4) and applies across its full 2.7V–5.5V operating range - a key differentiator from lower-end EEPROMs rated at 10,000–100,000 cycles only at nominal voltage.

AT24C512C1-10CC-2.7 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-TDFN

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:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-LAP (8x5)

AT24C512C1-10CC-2.7 FAQ

1.How can I place an order for AT24C512C1-10CC-2.7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AT24C512C1-10CC-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 AT24C512C1-10CC-2.7 reliable?

The price and inventory of AT24C512C1-10CC-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 AT24C512C1-10CC-2.7 is usually 5 days.

3.What payment methods are accepted for AT24C512C1-10CC-2.7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C512C1-10CC-2.7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT24C512C1-10CC-2.7?

AT24C512C1-10CC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT24C512C1-10CC-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 AT24C512C1-10CC-2.7?

For technical support, including AT24C512C1-10CC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C512C1-10CC-2.7 requirements.

6.How does Aetrix verify that AT24C512C1-10CC-2.7 is sourced from the original manufacturer or authorized distributors?

All AT24C512C1-10CC-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 AT24C512C1-10CC-2.7 meets industry standards.

7.What is the process for return or replacement of AT24C512C1-10CC-2.7?

All AT24C512C1-10CC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C512C1-10CC-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 AT24C512C1-10CC-2.7 part is unused and in its original packaging.

Return procedure for AT24C512C1-10CC-2.7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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