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Microchip Technology AT24C08A-10TI-1.8
- Part No.:
- AT24C08A-10TI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C08A-10TI-1.8.pdf
- Description:
- IC EEPROM 8KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,562
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Product details
Overview
AT24C08A-10TI-1.8 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) I²C-compatible serial EEPROM optimized for low-voltage embedded systems. It operates from 1.8V to 5.5V, supports 100 kHz I²C bus speed at 1.8V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention. It is used in industrial sensor calibration storage and firmware parameter backup where space-constrained, ultra-low-power nonvolatile memory is required.
For engineers reviewing the AT24C08A-10TI-1.8 datasheet, AT24C08A-10TI-1.8 pinout, AT24C08A-10TI-1.8 application, or AT24C08A-10TI-1.8 equivalent, key selection considerations include its 1.8V minimum supply, industrial temperature range (−40°C to +85°C), TSSOP-8 package, 16-byte page write capability, and A2-only device addressing with A0/A1 as no-connects.
Technical Context
The AT24C08A-10TI-1.8 implements a 2-wire I²C interface with Schmitt-triggered, noise-filtered SDA/SCL inputs and open-drain bidirectional data transfer. Its internal memory is organized into four 256-page blocks of 4 bytes each, requiring a 10-bit word address for random access.
It uses a single hard-wired A2 pin for device addressing-enabling up to two AT24C08A devices on one bus-with A0 and A1 designated as no-connects. Write protection is controlled solely by the WP pin: tied to VCC to lock the full 8K array, or grounded for normal read/write operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 × 8), organized as 4 blocks × 256 pages × 4 bytes - enables efficient page-wise updates without full-array erasure |
| Supply Voltage Range | 1.8V to 5.5V - supports direct interfacing with 1.8V logic and mixed-voltage systems without level shifters |
| I²C Clock Frequency | 100 kHz max at 1.8V - ensures reliable timing margin under low-VCC conditions with standard pull-up resistors |
| Write Cycle Time | 10 ms maximum - defines minimum interval between write commands; impacts firmware update latency and error-recovery timing |
| Endurance & Retention | 1 million write cycles / 100 years data retention - qualifies for long-life field deployments in metering and industrial controllers |
| Operating Temperature | −40°C to +85°C - meets industrial-grade thermal requirements for outdoor and factory-floor applications |
| ESD Protection | >3000V HBM - provides robust handling tolerance during PCB assembly and field service |
Pinout & Package
AT24C08A-10TI-1.8 is housed 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 per AT24C08A specification - must be left floating or tied to GND/VCC (no functional effect) |
| A1 | Device Address Input | No-connect per AT24C08A specification - must be left floating or tied to GND/VCC (no functional effect) |
| A2 | Device Address Input | Hard-wired address bit - determines one of two possible I²C device addresses (0x50 or 0x51) on shared bus |
| GND | Ground Reference | Return path for all internal circuitry and I/O - requires low-impedance connection to system ground plane |
| VCC | Power Supply | 1.8V–5.5V main supply - bypass capacitor (0.1 µF ceramic) required within 5 mm of pin for noise immunity |
| WP | Write Protect Control | Active-high hardware lock - when high, disables all write operations to entire 8K memory array |
| SCL | Serial Clock Input | Master-generated clock for I²C protocol - Schmitt-triggered input accepts slow/fuzzy edges common in noisy environments |
| SDA | Serial Data I/O | Bidirectional open-drain bus line - requires external pull-up resistor (typically 2.2–10 kΩ) to VCC |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Operation Support | Enables direct integration with 1.8V microcontrollers and FPGAs without voltage translation circuitry |
| 16-Byte Page Write | Reduces I²C transaction overhead by up to 87% vs. byte-write mode when updating configuration tables |
| Hardware Write Protection | Prevents accidental overwrites during power-up/down transients or firmware glitches via simple WP pin control |
| Industrial Temperature Range | Validated operation from −40°C to +85°C ensures reliability in uncontrolled ambient environments |
| Noise-Filtered I/O Inputs | Integrated Schmitt triggers and digital filtering suppress EMI-induced false starts/stops on SDA/SCL lines |
Applications
| Smart Energy Meter Calibration Storage | Industrial PLC Configuration Backup |
|---|---|
Use Scenario: Storing calibrated ADC offset/gain coefficients and tariff tables in electricity meters deployed outdoors. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed infrequently during commissioning or firmware updates via I²C. Use Value: 100-year data retention ensures calibration integrity across meter lifetime without battery backup. | Use Scenario: Preserving user-defined I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration register bank updated only during setup or maintenance cycles. Use Value: 1M write endurance supports thousands of field reconfigurations over 10+ years of operation. |
| Medical Sensor Module Settings | Automotive Body Control Unit NVM |
Use Scenario: Holding patient-specific sensor scaling factors and diagnostic thresholds in portable ECG/SpO₂ modules. IC Role / Device Role / Timing Role: Low-power I²C slave storing critical operational constants accessible during boot and runtime. Use Value: 1.8V operation allows direct interface with ultra-low-power sensor SoCs, minimizing BOM count. | Use Scenario: Saving seat/mirror position presets, lighting profiles, and fault logs in automotive body electronics. IC Role / Device Role / Timing Role: Ruggedized EEPROM interfaced to CAN-connected microcontroller for infrequent but mission-critical writes. Use Value: >3000V HBM ESD rating withstands assembly handling and in-vehicle electrostatic discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95M01-RMN6TP | 1 Mbit SPI interface, 2.5–5.5V supply, 5ms write cycle, SO8 package | Requires SPI host interface instead of I²C; faster write time but higher VCC min | Select if system already uses SPI peripherals and needs higher density than 8K-bit |
| BR24G08NUX-10 | 8K-bit I²C EEPROM, 1.7–5.5V, 100 kHz @ 1.7V, 8-pin USON package, −40°C to +105°C | Wider voltage range, extended temp grade, smaller USON footprint - no A0/A1 pins (fixed address) | Choose for space-constrained designs needing extended temperature margin and ultra-small footprint |
Compared with M95M01-RMN6TP and BR24G08NUX-10, the AT24C08A-10TI-1.8 offers guaranteed 1.8V compatibility, industry-standard I²C addressing flexibility (A2-selectable), and TSSOP-8 mechanical compatibility with legacy layouts - making it optimal for cost-sensitive industrial upgrades.
Availability
AT24C08A-10TI-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration storage, PLC configuration backup, and medical device parameter retention requiring stable component supply across multi-year production cycles.
Supply support for AT24C08A-10TI-1.8 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 embedded control and connectivity.
The AT24CxxA family was designed specifically for low-power, space-constrained embedded systems requiring reliable, byte-addressable nonvolatile storage with minimal external components and broad voltage compatibility.
FAQ
What is the maximum I²C clock frequency supported by AT24C08A-10TI-1.8 at 1.8V?
The AT24C08A-10TI-1.8 supports a maximum I²C clock frequency of 100 kHz when operating at 1.8V. This is specified in the AC Characteristics table under fSCL for 1.8V operation. The device does not support 400 kHz at 1.8V - that speed is only guaranteed at 5.0V. Designers must size pull-up resistors and account for bus capacitance accordingly to meet tLOW/tHIGH timing at this rate.
How many AT24C08A-10TI-1.8 devices can share the same I²C bus?
Up to two AT24C08A-10TI-1.8 devices can share the same I²C bus. This is because the AT24C08A uses only the A2 pin for hardware device addressing (A0 and A1 are no-connects), yielding two possible 7-bit addresses: 0x50 (A2 = low) and 0x51 (A2 = high). Attempting to connect more than two will cause address collisions and communication failure.
What happens to the AT24C08A-10TI-1.8 when the WP pin is tied to VCC?
When the WP pin of the AT24C08A-10TI-1.8 is tied to VCC, the entire 8K-bit memory array is write-protected - all write operations (byte, page, or sequential) are inhibited. Reads remain fully functional. This hardware lock prevents corruption during power transitions or software faults. To restore write capability, WP must be pulled to GND.
Does AT24C08A-10TI-1.8 require an external pull-up resistor on the SDA line?
Yes, the AT24C08A-10TI-1.8 requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. A typical value is 4.7 kΩ to VCC, though the exact value depends on bus capacitance and desired rise time. Without pull-ups, the I²C bus cannot generate valid HIGH logic levels, and communication will fail.
Is the AT24C08A-10TI-1.8 pin-compatible with other AT24CxxA variants like AT24C02A or AT24C04A?
No, the AT24C08A-10TI-1.8 is not functionally pin-compatible with AT24C02A or AT24C04A in terms of device addressing. While all share identical TSSOP-8 pinouts and I/O functions, the AT24C08A treats A0 and A1 as no-connects and uses only A2 for addressing, whereas AT24C02A uses A0–A2 and AT24C04A uses A0–A1. Swapping them may cause address conflicts or unintended write protection behavior.
AT24C08A-10TI-1.8 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C08A-10TI-1.8 FAQ
1.How can I place an order for AT24C08A-10TI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08A-10TI-1.8 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-1.8 reliable?
The price and inventory of AT24C08A-10TI-1.8 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-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C08A-10TI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08A-10TI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08A-10TI-1.8?
AT24C08A-10TI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08A-10TI-1.8 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-1.8?
For technical support, including AT24C08A-10TI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08A-10TI-1.8 requirements.
6.How does Aetrix verify that AT24C08A-10TI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C08A-10TI-1.8 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-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C08A-10TI-1.8?
All AT24C08A-10TI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08A-10TI-1.8, 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-1.8 part is unused and in its original packaging.
Return procedure for AT24C08A-10TI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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