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Microchip Technology AT24C164-10SU-1.8
- Part No.:
- AT24C164-10SU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C164-10SU-1.8.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,913
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Product details
Overview
AT24C164-10SU-1.8 from Microchip Technology (formerly Atmel) is a 16-kbit I²C-compatible serial EEPROM optimized for low-voltage embedded systems. It features 2048 × 8-bit organization, 1.8V to 5.5V supply operation, hardware write protection via WP pin, and 16-byte page write capability with ≤10 ms self-timed write cycle. It is used in industrial sensor calibration storage and automotive body control modules requiring nonvolatile parameter retention.
For engineers reviewing the AT24C164-10SU-1.8 datasheet, AT24C164-10SU-1.8 pinout, AT24C164-10SU-1.8 application, or AT24C164-10SU-1.8 equivalent, key selection considerations include 1.8V minimum VCC support, 100 kHz I²C speed at 1.8V, 8-lead SOIC package, write protect functionality, and automotive-grade temperature range (–40°C to +85°C).
Technical Context
The AT24C164-10SU-1.8 implements a two-wire I²C interface with open-drain SDA and Schmitt-triggered SCL inputs for noise immunity. Its address decoding uses three hardware-selectable pins (A0–A2), enabling up to eight devices on one bus. Internal memory is partitioned into 256 pages of 8 bytes each, supporting both byte and 16-byte page writes with automatic address increment within page boundaries.
It operates across –40°C to +85°C with 1 µA typical standby current at 1.8V and supports acknowledge polling to detect write completion. The device includes built-in write cycle timing and data retention of 100 years, meeting automotive reliability requirements without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for firmware configuration tables or sensor offset storage in compact MCU systems. |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic families and compatibility with mixed-voltage I²C buses. |
| I²C Clock Frequency | 100 kHz at 1.8V - ensures reliable communication in ultra-low-power battery-backed applications. |
| Write Cycle Time | ≤10 ms max - defines minimum interval between successive write commands; no external wait required beyond tWR. |
| Endurance | 1 million write cycles - supports frequent recalibration or logging in industrial controllers without premature wear-out. |
| Data Retention | 100 years at +25°C - guarantees long-term validity of stored calibration or security keys over product lifetime. |
| Operating Temperature | –40°C to +85°C - qualified for under-hood automotive and factory-floor industrial environments. |
| Package | 8-lead JEDEC SOIC (8S1), 0.150" wide - standard surface-mount footprint compatible with automated PCB assembly. |
Pinout & Package
AT24C164-10SU-1.8 is housed in an 8-lead JEDEC SOIC (8S1) package, measuring 4.80–5.00 mm × 3.81–3.99 mm × 1.35–1.75 mm (L × W × H), with gull-wing leads and lead-free/halogen-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | Hardwired to VSS or VCC to select one of eight possible I²C addresses (0x50–0x57); enables multi-device bus sharing. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up; supports wire-OR with other I²C devices on same bus. |
| SCL | Serial Clock Input | Positive-edge clock input for data sampling; Schmitt-triggered for robust noise rejection in electrically noisy environments. |
| WP | Write Protect Control | Active-high signal: tied to VCC disables all writes, preventing accidental overwrites during power transitions or firmware updates. |
| VCC | Power Supply | Primary supply rail (1.8V–5.5V); powers internal logic and memory array; decoupling capacitor recommended near pin. |
| GND | Ground Reference | System ground return path; must be low-impedance and shared with host MCU to ensure signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Minimum Operation | Enables integration into energy-sensitive IoT nodes and battery-powered sensors without level-shifting circuitry. |
| Hardware Write Protection | WP pin provides deterministic, glitch-immune lockout of memory writes-critical for safety-critical firmware parameters. |
| 16-Byte Page Write Mode | Reduces I²C transaction overhead by up to 15× versus byte writes, accelerating bulk configuration updates. |
| 100-Year Data Retention | Eliminates need for periodic refresh or backup power in maintenance-free deployments such as smart meters. |
| Automotive-Qualified Temp Range | Validated for continuous operation at –40°C to +85°C, satisfying AEC-Q100 stress test requirements for body electronics. |
Applications
| Industrial Sensor Calibration Storage | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-calibrated gain/offset coefficients for temperature, pressure, and humidity sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via I²C during system boot or sensor initialization. Use Value: Enables field-replaceable sensor modules with unique calibration data preserved across power cycles and firmware updates. | Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration in vehicle door modules. IC Role / Device Role / Timing Role: Persistent configuration store updated only during user setup or service mode, not during runtime. Use Value: Supports personalized settings retention without backup battery, reducing BOM cost and board space. |
| Medical Device Configuration | Smart Energy Meter Firmware Settings |
Use Scenario: Saving user-defined alarm thresholds, measurement units, and audit log enable/disable flags in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration vault with hardware write lock during normal operation. Use Value: Meets IEC 62304 software lifecycle requirements by isolating critical settings from volatile RAM corruption risks. | Use Scenario: Storing tariff schedules, meter ID, pulse constants, and firmware revision history in utility-grade electricity meters. IC Role / Device Role / Timing Role: Long-life data logger with guaranteed 100-year retention, accessed infrequently but with absolute reliability. Use Value: Eliminates need for supercapacitor or coin-cell backup, simplifying certification for EN 13757-3 and DLMS/COSEM compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C16-DRMN3TP/K | 16 Kbit, 1.7V–5.5V, 400 kHz I²C at 1.7V, SOIC-8, STMicroelectronics | Higher max I²C speed at low voltage; slightly lower min VCC (1.7V vs. 1.8V) | Preferred when 400 kHz operation below 2.5V is required; otherwise functionally interchangeable. |
| BR24G16NUX-10 | 16 Kbit, 1.6V–5.5V, 1 MHz I²C, 8-pin TSSOP, ROHM | Wider voltage range and faster clock; different package (TSSOP vs. SOIC) | Choose for higher-speed designs or tighter board layouts; requires PCB footprint change. |
Compared with M24C16-DRMN3TP/K and BR24G16NUX-10, the AT24C164-10SU-1.8 offers proven automotive qualification, stricter 1.8V–5.5V tolerance margin, and identical SOIC-8 footprint to legacy Atmel designs-making it ideal for drop-in replacement in existing industrial and automotive platforms.
Availability
AT24C164-10SU-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration storage, automotive body control modules, medical device configuration, and smart energy meter firmware settings requiring stable component supply, long-term data retention, and automotive-grade reliability.
Supply support for AT24C164-10SU-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 broad industrial and automotive design-in support.
The AT24C164-10SU-1.8 belongs to Microchip's legacy Atmel serial EEPROM product line, engineered for robust, low-power, nonvolatile data storage in harsh environments where extended temperature operation and long-term reliability are mandatory.
FAQ
What is the minimum operating voltage for AT24C164-10SU-1.8?
The AT24C164-10SU-1.8 supports a minimum supply voltage of 1.8V, with full functionality-including 100 kHz I²C communication and write operations-guaranteed across the 1.8V to 5.5V range. This makes AT24C164-10SU-1.8 suitable for direct integration with 1.8V logic families without level shifters, unlike older 2.7V-only variants.
Does AT24C164-10SU-1.8 support page write operations?
Yes, AT24C164-10SU-1.8 supports 16-byte page write mode, allowing up to 16 sequential bytes to be written in a single I²C transaction. This reduces bus overhead significantly compared to byte writes and is especially valuable for updating configuration blocks or calibration tables efficiently in resource-constrained microcontrollers.
How does the WP pin function on AT24C164-10SU-1.8?
The WP (Write Protect) pin on AT24C164-10SU-1.8 is active-high: when pulled to VCC, it disables all write operations-including byte, page, and erase commands-while read access remains fully functional. This hardware lock prevents accidental or malicious overwrites during power-up transients or firmware updates, enhancing system integrity in AT24C164-10SU-1.8 deployments.
Is AT24C164-10SU-1.8 qualified for automotive applications?
Yes, AT24C164-10SU-1.8 is explicitly specified for automotive-grade operation across –40°C to +85°C and is offered in lead-free/halogen-free packaging. Its endurance (1 million write cycles) and 100-year data retention meet AEC-Q100 stress test expectations for body electronics, making AT24C164-10SU-1.8 appropriate for use in door modules, lighting controllers, and HVAC subsystems.
What package type is used for AT24C164-10SU-1.8?
AT24C164-10SU-1.8 uses an 8-lead JEDEC SOIC (8S1) package, 0.150" wide, with gull-wing leads and RoHS-compliant lead-free/halogen-free finish. Its dimensions (4.80–5.00 mm × 3.81–3.99 mm) match industry-standard SOIC footprints, ensuring compatibility with existing reflow profiles and pick-and-place equipment used for AT24C164-10SU-1.8 assembly.
AT24C164-10SU-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C164-10SU-1.8 FAQ
1.How can I place an order for AT24C164-10SU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C164-10SU-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 AT24C164-10SU-1.8 reliable?
The price and inventory of AT24C164-10SU-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 AT24C164-10SU-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C164-10SU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C164-10SU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C164-10SU-1.8?
AT24C164-10SU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C164-10SU-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 AT24C164-10SU-1.8?
For technical support, including AT24C164-10SU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C164-10SU-1.8 requirements.
6.How does Aetrix verify that AT24C164-10SU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C164-10SU-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 AT24C164-10SU-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C164-10SU-1.8?
All AT24C164-10SU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C164-10SU-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 AT24C164-10SU-1.8 part is unused and in its original packaging.
Return procedure for AT24C164-10SU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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