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Microchip Technology AT24C64-10TI-2.5
- Part No.:
- AT24C64-10TI-2.5
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C64-10TI-2.5.pdf
- Description:
- IC EEPROM 64KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,626
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Product details
Overview
AT24C64-10TI-2.5 from Microchip Technology (formerly Atmel) is a 64 Kbit I²C-compatible serial EEPROM organized as 8192 × 8 bits, operating from 2.5V to 5.5V, featuring 10 ms max write cycle time, 1 million write endurance, and industrial temperature range (–40°C to +85°C). It is used for nonvolatile parameter storage in embedded controllers, power meters, and industrial sensors where low-voltage operation and hardware write protection are required.
For engineers reviewing the AT24C64-10TI-2.5 datasheet, AT24C64-10TI-2.5 pinout, AT24C64-10TI-2.5 application, or AT24C64-10TI-2.5 equivalent, key selection criteria include VCC min/max compatibility (2.5V–5.5V), WP pin-based quadrant write protection, 32-byte page write capability, and industrial-grade reliability with 100-year data retention.
Technical Context
The AT24C64-10TI-2.5 implements a standard two-wire I²C interface with open-drain SDA and Schmitt-triggered SCL inputs, supporting 100 kHz clock frequency at 2.5V. Its internal address counter enables current-address and sequential reads, while device addressing uses A0–A2 pins to support up to eight devices on one bus.
Write operations are internally self-timed (max 10 ms), during which all inputs are disabled; acknowledge polling allows host synchronization. The WP pin provides hardware-level protection for the upper 16K bits (2048 bytes), and noise suppression circuitry filters transients on SDA/SCL lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 64 Kbit (8192 × 8 bits), enabling storage of firmware calibration data or configuration registers in space-constrained designs |
| Supply Voltage Range | 2.5V to 5.5V - supports direct interfacing with 2.5V logic systems without level shifting |
| Interface Protocol | I²C (2-wire serial) - reduces PCB routing complexity versus parallel EEPROMs and enables multi-device bus sharing |
| Write Cycle Time | Max 10 ms - defines minimum interval between write commands; impacts real-time logging latency |
| Endurance | 1 million write cycles - ensures long-term reliability in field-updatable applications like smart metering |
| Data Retention | 100 years - guarantees persistent storage across product lifetime without refresh |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor equipment |
Pinout & Package
AT24C64-10TI-2.5 is supplied in an 8-pin TSSOP package (JEDEC MO-153, 0.170" body width), optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Device Address Inputs | Hardwired or left floating to configure one of eight unique I²C addresses; floating defaults to logic low |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up; supports wire-OR with other I²C devices |
| SCL | Serial Clock Input | Positive-edge sampled clock input; includes Schmitt trigger for noise immunity in electrically noisy environments |
| WP | Write Protect Control | Active-high pin that disables writes to upper 16K bits when tied to VCC; enables selective firmware parameter locking |
| GND | Ground Reference | Signal return path for all internal circuitry; must be connected to system ground plane |
| VCC | Power Supply | Primary supply rail (2.5V–5.5V); powers EEPROM core and I/O buffers; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| 32-byte page write mode | Enables efficient bulk updates (e.g., logging 32 sensor samples per write) without exceeding internal timing limits |
| Hardware write protection (WP) | Prevents accidental overwrites of critical calibration or security data without software intervention |
| 100 kHz I²C speed at 2.5V | Ensures reliable communication with low-power microcontrollers operating at reduced voltage rails |
| ESD protection >3,000V | Reduces risk of damage during handling or system integration in unshielded industrial enclosures |
| Low standby current (0.5 µA @ 2.5V) | Minimizes battery drain in always-on edge devices such as IoT node backup memory |
Applications
| Smart Energy Meters | Industrial PLC Modules |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs in utility-grade electricity meters. IC Role / Device Role / Timing Role: Nonvolatile configuration and event-history storage with guaranteed 100-year data retention. Use Value: Eliminates need for battery-backed SRAM; withstands repeated power cycling and wide ambient temperature swings. |
Use Scenario: Holding I/O mapping tables, PID tuning parameters, and firmware update flags in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent parameter storage accessible via I²C from main MCU during boot or runtime reconfiguration. Use Value: Enables field-upgradable control logic without requiring full firmware reflashing or external programming tools. |
| Medical Diagnostic Sensors | Automotive Body Control Units |
Use Scenario: Recording sensor calibration offsets, usage counters, and diagnostic fault history in portable ultrasound or glucose monitors. IC Role / Device Role / Timing Role: Low-power, high-reliability data logger interfaced to 2.5V/3.3V sensor subsystems. Use Value: Meets medical device longevity requirements with 1M write cycles and zero maintenance over 10+ year service life. |
Use Scenario: Storing seat position presets, mirror adjustment profiles, and lighting configuration in automotive interior modules. IC Role / Device Role / Timing Role: I²C-accessible nonvolatile memory for user-customizable settings retained across ignition cycles. Use Value: Supports ASIL-B compatible design with industrial temp rating and hardware write lock for safety-critical parameters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C64-WMN6TP | Same 64 Kbit capacity, 2.5V–5.5V supply, but rated for –40°C to +105°C and features enhanced ESD (4 kV HBM) | Preferred for automotive cabin modules requiring extended high-temp operation beyond +85°C | Select when higher temperature margin or stronger ESD robustness is needed; pinout and I²C protocol identical |
| BR24G64FJ-WE2 | 64 Kbit, 1.7V–5.5V supply, 400 kHz max I²C speed, and built-in error correction code (ECC) | Suitable for ultra-low-voltage battery-powered devices needing faster writes and bit-error resilience | Choose for sub-2.5V operation or mission-critical data integrity; requires verifying ECC handling in host firmware |
Compared with AT24C64-10TI-2.5, M24C64-WMN6TP extends thermal range and ESD tolerance without changing layout, while BR24G64FJ-WE2 lowers voltage floor and adds ECC at the cost of firmware compatibility overhead.
Availability
AT24C64-10TI-2.5 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and medical diagnostics requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for AT24C64-10TI-2.5 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 AT24C64-10TI-2.5 belongs to Microchip's legacy AT24Cxx serial EEPROM family, designed for cost-sensitive, low-power embedded systems requiring robust, standardized I²C-based nonvolatile storage.
FAQ
What is the maximum clock frequency supported by AT24C64-10TI-2.5 at 2.5V?
The AT24C64-10TI-2.5 supports a maximum I²C clock frequency of 100 kHz when operated at 2.5V. This is specified in the AC Characteristics table under "2.7-, 2.5-volt" column for fSCL. Higher frequencies (up to 400 kHz) are only guaranteed at 4.5V–5.5V operation, making 100 kHz the safe limit for 2.5V systems.
Does AT24C64-10TI-2.5 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C64-10TI-2.5 requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and desired rise time; the device itself does not integrate internal pull-ups.
How does the Write Protect (WP) pin function on AT24C64-10TI-2.5?
On AT24C64-10TI-2.5, the WP pin is active-high: when tied to VCC, it inhibits write operations to the upper 16K bits (addresses 0x2000–0x3FFF); when grounded or left floating (internally pulled down), full-memory writes are enabled. This allows selective protection of critical configuration data without software overhead.
What is the memory organization of AT24C64-10TI-2.5?
AT24C64-10TI-2.5 organizes its 64 Kbit capacity as 8192 words of 8 bits each (8192 × 8), divided into 256 pages of 32 bytes. This structure enables efficient page-write operations and supports random byte access using a 13-bit internal address counter.
Is AT24C64-10TI-2.5 compatible with standard I²C protocol implementations?
Yes, AT24C64-10TI-2.5 fully complies with standard I²C protocol specifications, including START/STOP conditions, ACK/NACK handshaking, 7-bit device addressing with R/W bit, and repeated START support. It requires no special host-side protocol extensions beyond standard I²C drivers.
AT24C64-10TI-2.5 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:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C64-10TI-2.5 FAQ
1.How can I place an order for AT24C64-10TI-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C64-10TI-2.5 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 AT24C64-10TI-2.5 reliable?
The price and inventory of AT24C64-10TI-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C64-10TI-2.5 is usually 5 days.
3.What payment methods are accepted for AT24C64-10TI-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C64-10TI-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C64-10TI-2.5?
AT24C64-10TI-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C64-10TI-2.5 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 AT24C64-10TI-2.5?
For technical support, including AT24C64-10TI-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C64-10TI-2.5 requirements.
6.How does Aetrix verify that AT24C64-10TI-2.5 is sourced from the original manufacturer or authorized distributors?
All AT24C64-10TI-2.5 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 AT24C64-10TI-2.5 meets industry standards.
7.What is the process for return or replacement of AT24C64-10TI-2.5?
All AT24C64-10TI-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C64-10TI-2.5, 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 AT24C64-10TI-2.5 part is unused and in its original packaging.
Return procedure for AT24C64-10TI-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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