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

Microchip Technology AT24C08A-10TI-2.7

Name: AT24C08A-10TI-2.7
Brand: Microchip Technology
SKU: AT24C08A-10TI-2.7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AT24C08A-10TI-2.7

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: AT24C08A-10TI-2.7.pdf

Description:: IC EEPROM 8KBIT I2C 8TSSOP

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Product details

Overview

AT24C08A-10TI-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–5.5V), and industrial temperature range (−40°C to +85°C). It supports 100 kHz I²C communication, 16-byte page writes, and delivers 1 million write cycles with 100-year data retention - deployed in embedded system configuration storage, sensor calibration memory, and power-management parameter backup.

For engineers reviewing the AT24C08A-10TI-2.7 datasheet, AT24C08A-10TI-2.7 pinout, AT24C08A-10TI-2.7 application, or AT24C08A-10TI-2.7 equivalent, key selection criteria include its 2.7V minimum VCC, industrial-grade TSSOP-8 package, WP-enabled hardware lock, 10 ms max write cycle time, and compatibility with microcontroller I²C peripherals requiring robust nonvolatile storage at extended temperature.

Technical Context

The AT24C08A-10TI-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 with ACK/NACK handshaking. Its device addressing uses only the A2 pin (A0/A1 are NC), enabling up to two AT24C08A devices per bus.

Internally organized as four 256-page blocks of 4 bytes each, it requires a 10-bit word address for random access and supports partial page writes within its 16-byte page boundary. Write protection is asserted when WP = VCC, locking the full 8K array - distinct from AT24C02A/04A's half-array protection scheme.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	8192 bits (1024 × 8), sufficient for storing firmware parameters, calibration coefficients, or device identity data in space-constrained designs.
Supply Voltage Range	2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level-shifting in industrial environments.
I²C Clock Frequency	100 kHz maximum at 2.7V - ensures reliable timing margin under low-VCC conditions while maintaining compatibility with legacy I²C masters.
Write Cycle Time	≤10 ms - defines worst-case latency before next command; self-timed and transparent to host software flow control.
Endurance & Retention	1 million write cycles / 100 years data retention - meets long-life requirements for field-deployed equipment with infrequent but critical updates.
ESD Protection	>3000V HBM - provides robust handling during board assembly and end-user service without external protection circuitry.
Operating Temperature	−40°C to +85°C - qualified for industrial automation, automotive body electronics, and outdoor IoT edge nodes.

Pinout & Package

AT24C08A-10TI-2.7 is supplied in an 8-pin Thin Shrink Small Outline Package (TSSOP), 0.170" wide, with 0.65 mm pitch and exposed pad not present. Pin 1 is marked by a beveled corner.

Pin/Terminal	Circuit Role	Design Meaning
A0	Device Address Input	No-connect (NC) for AT24C08A; must be left floating or tied to GND/VCC - no effect on addressing.
A1	Device Address Input	No-connect (NC) for AT24C08A; unused and electrically isolated from internal logic.
A2	Device Address Input	Hardwired address bit; determines one of two possible I²C slave addresses (0x50 or 0x51) on shared bus.
GND	Ground Reference	System return path for VCC and I/O; requires low-impedance connection to minimize noise coupling into SDA/SCL.
VCC	Power Supply	Primary supply input (2.7–5.5V); decoupling capacitor (0.1 µF ceramic) required within 1 cm of pin.
WP	Write Protect Control	Hardware lock: tied to VCC to disable all writes (full 8K array protected); tied to GND for normal read/write operation.
SCL	Serial Clock Input	Master-generated clock; open-drain, requires external pull-up; Schmitt-triggered for noise rejection on slow-rising edges.
SDA	Serial Data I/O	Bidirectional open-drain data line; shared across multiple I²C devices; pull-up resistor value selected per bus capacitance and speed.

Key Features

Feature	Design Value
Hardware Write Protection	WP pin disables all write operations when pulled high - prevents accidental overwrites during power transients or firmware bugs.
16-Byte Page Write Mode	Enables burst programming of up to 16 bytes per I²C transaction - reduces bus overhead and total write time vs. byte-by-byte writes.
Schmitt-Trigger Inputs	Filters noise on SCL/SDA lines, allowing reliable operation in electrically noisy industrial enclosures without additional RC filtering.
Low Standby Current	4 µA max at 2.7V - minimizes quiescent power draw in battery-backed or energy-harvesting systems during sleep modes.
Industrial Temperature Rating	Qualified from −40°C to +85°C - eliminates derating concerns in uncontrolled ambient deployments like factory floor controllers or outdoor gateways.

Applications

Industrial PLC Configuration Storage	Smart Sensor Calibration Memory
Use Scenario: Storing I/O mapping tables, PID tuning constants, and alarm thresholds in programmable logic controllers operating in factory environments with voltage fluctuations and EMI. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via I²C during boot and runtime reconfiguration; WP pin secured to VCC after initial setup. Use Value: Ensures deterministic startup behavior and prevents corruption during brown-out events or hot-swap module insertion.	Use Scenario: Retaining factory-trimmed offset/gain coefficients and linearization tables for MEMS accelerometers and temperature sensors in HVAC and building automation nodes. IC Role / Device Role / Timing Role: Calibration data repository written once during production test and read on every power-up; accessed at 100 kHz to avoid delaying sensor initialization. Use Value: Eliminates need for host MCU to store calibration in flash or RAM, reducing firmware complexity and improving measurement repeatability.
Power Supply Parameter Backup	Embedded System Bootloader Settings
Use Scenario: Saving output voltage/current limits, fan speed profiles, and fault log history in AC/DC and DC/DC power modules subject to thermal cycling and long service life. IC Role / Device Role / Timing Role: Persistent parameter bank updated only during maintenance mode; WP enabled during normal operation to prevent unintended changes. Use Value: Maintains safe operational boundaries across power supply lifetime without requiring recalibration or firmware update.	Use Scenario: Holding bootloader jump address, secure boot flags, and firmware version metadata in resource-constrained microcontrollers where internal flash is reserved for application code. IC Role / Device Role / Timing Role: Trusted configuration store accessed early in boot sequence; supports dual-bank firmware update tracking via atomic flag writes. Use Value: Enables fail-safe firmware recovery and field-upgradable security policies without expanding MCU silicon cost.

Industrial PLC Configuration Storage

Smart Sensor Calibration Memory

Use Scenario: Storing I/O mapping tables, PID tuning constants, and alarm thresholds in programmable logic controllers operating in factory environments with voltage fluctuations and EMI.

IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via I²C during boot and runtime reconfiguration; WP pin secured to VCC after initial setup.

Use Value: Ensures deterministic startup behavior and prevents corruption during brown-out events or hot-swap module insertion.

Use Scenario: Retaining factory-trimmed offset/gain coefficients and linearization tables for MEMS accelerometers and temperature sensors in HVAC and building automation nodes.

IC Role / Device Role / Timing Role: Calibration data repository written once during production test and read on every power-up; accessed at 100 kHz to avoid delaying sensor initialization.

Use Value: Eliminates need for host MCU to store calibration in flash or RAM, reducing firmware complexity and improving measurement repeatability.

Power Supply Parameter Backup

Embedded System Bootloader Settings

Use Scenario: Saving output voltage/current limits, fan speed profiles, and fault log history in AC/DC and DC/DC power modules subject to thermal cycling and long service life.

IC Role / Device Role / Timing Role: Persistent parameter bank updated only during maintenance mode; WP enabled during normal operation to prevent unintended changes.

Use Value: Maintains safe operational boundaries across power supply lifetime without requiring recalibration or firmware update.

Use Scenario: Holding bootloader jump address, secure boot flags, and firmware version metadata in resource-constrained microcontrollers where internal flash is reserved for application code.

IC Role / Device Role / Timing Role: Trusted configuration store accessed early in boot sequence; supports dual-bank firmware update tracking via atomic flag writes.

Use Value: Enables fail-safe firmware recovery and field-upgradable security policies without expanding MCU silicon cost.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
M95M01-RDW6TP	1 Mbit SPI interface (vs. I²C), 2.5–5.5V supply, 5 ms write cycle, SO8 package	Requires SPI-capable MCU; faster write but different protocol stack integration; no WP pin - uses software lock commands	Select when existing design uses SPI peripherals and higher density (128K × 8) is needed; verify timing compatibility with host controller.
BR24G08FJ-WE2	8K-bit I²C EEPROM, 1.7–5.5V, 100 kHz/400 kHz, 8-pin SOP-J package, −40°C to +105°C	Wider VCC range and extended temperature; same pinout but different footprint (SOP-J vs. TSSOP); WP function identical	Prefer for automotive cabin modules or high-ambient applications where >85°C operation is required; drop-in replacement if PCB land pattern accommodates SOP-J.

Compared with M95M01-RDW6TP and BR24G08FJ-WE2, the AT24C08A-10TI-2.7 offers guaranteed I²C compatibility with legacy Atmel/Microchip ecosystem designs, industrial-grade TSSOP-8 packaging optimized for automated assembly, and hardware WP implementation that requires no firmware intervention to enforce write lockdown.

Availability

AT24C08A-10TI-2.7 is available at Aetrix Electronics and suitable for industrial PLCs, smart sensor nodes, power supply management units, and embedded bootloader systems requiring stable component supply across multi-year production cycles.

Supply support for AT24C08A-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 nonvolatile memory solutions, with a focus on reliability, longevity, and embedded system integration.

The AT24C08A-10TI-2.7 belongs to Microchip's legacy AT24CxxA serial EEPROM product line, designed specifically for low-power, low-voltage I²C-based configuration and calibration storage in industrial and commercial equipment.

FAQ

What is the maximum I²C clock frequency supported by the AT24C08A-10TI-2.7?

The AT24C08A-10TI-2.7 supports up to 100 kHz I²C clock frequency when operated at 2.7V–5.5V. This is specified in the AC Characteristics table under fSCL for the "2.7-, 2.5-, 1.8-volt" column. While 400 kHz is supported at 5.0V, the -2.7 suffix denotes the 2.7V–5.5V voltage option, which caps operation at 100 kHz to ensure timing compliance across the full voltage and temperature range. The AT24C08A-10TI-2.7 must be configured accordingly in the host I²C peripheral.

How does the Write Protect (WP) pin function on the AT24C08A-10TI-2.7?

On the AT24C08A-10TI-2.7, the WP pin provides hardware-level write inhibition: when pulled high to VCC, it locks the entire 8K-bit memory array against all write operations including byte, page, and erase commands. When tied to GND, full read/write functionality is restored. This behavior is distinct from earlier AT24C02A/04A variants and is documented in the WP Pin Status table. The AT24C08A-10TI-2.7 implements full-array protection - no partial enablement is possible.

What package type and dimensions does the AT24C08A-10TI-2.7 use?

The AT24C08A-10TI-2.7 is packaged in an 8-pin Thin Shrink Small Outline Package (TSSOP), designated as 8T in Microchip's ordering guide. Its body width is 4.4 mm (0.170"), lead pitch is 0.65 mm, and overall length is 3.0 mm. Pin 1 is identified by a beveled corner. This package is RoHS-compliant, surface-mount compatible, and optimized for high-density PCB layouts - confirmed in the Packaging Information section of the AT24C02A/04A/08A datasheet.

Can the AT24C08A-10TI-2.7 be used with a 1.8V I²C master?

No - the AT24C08A-10TI-2.7 is rated for 2.7V to 5.5V operation only. Although the broader AT24C08A family includes -1.8 variants (e.g., AT24C08A-10TI-1.8), the -2.7 suffix explicitly denotes the 2.7V–5.5V voltage grade. Using it with a 1.8V master violates the absolute minimum VCC specification and risks unreliable communication, incomplete writes, or premature device failure. For 1.8V systems, the AT24C08A-10TI-1.8 variant must be selected instead.

What is the memory organization and addressing scheme of the AT24C08A-10TI-2.7?

The AT24C08A-10TI-2.7 contains 8192 bits organized as 1024 words of 8 bits each (1024 × 8). It uses a 10-bit word address for random access, with the upper 2 bits selecting one of four 256-page blocks and the lower 8 bits indexing within each block. Device addressing uses only the A2 pin (A0/A1 are NC), yielding two possible I²C slave addresses: 0x50 (A2 = GND) or 0x51 (A2 = VCC). This structure is defined in the Memory Organization and Device Addressing sections of the datasheet.

AT24C08A-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:: 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:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TSSOP

AT24C08A-10TI-2.7 FAQ

1.How can I place an order for AT24C08A-10TI-2.7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AT24C08A-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 AT24C08A-10TI-2.7 reliable?

The price and inventory of AT24C08A-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 AT24C08A-10TI-2.7 is usually 5 days.

3.What payment methods are accepted for AT24C08A-10TI-2.7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08A-10TI-2.7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT24C08A-10TI-2.7?

AT24C08A-10TI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT24C08A-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 AT24C08A-10TI-2.7?

For technical support, including AT24C08A-10TI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08A-10TI-2.7 requirements.

6.How does Aetrix verify that AT24C08A-10TI-2.7 is sourced from the original manufacturer or authorized distributors?

All AT24C08A-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 AT24C08A-10TI-2.7 meets industry standards.

7.What is the process for return or replacement of AT24C08A-10TI-2.7?

All AT24C08A-10TI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08A-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 AT24C08A-10TI-2.7 part is unused and in its original packaging.

Return procedure for AT24C08A-10TI-2.7:

1.Submit a request within 90 days.

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

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