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Microchip Technology AT24C164-10SC-1.8
- Part No.:
- AT24C164-10SC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C164-10SC-1.8.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,985
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Product details
Overview
AT24C164-10SC-1.8 from Microchip Technology (formerly Atmel) is a 16K-bit (2048 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage operation down to 1.8V, featuring 10 ms max self-timed write cycle, hardware write protection via WP pin, and cascading support for up to eight devices on a shared 2-wire bus. It is used in battery-powered IoT sensors, industrial control configuration storage, and embedded system parameter retention where voltage headroom is constrained.
For engineers reviewing the AT24C164-10SC-1.8 datasheet, AT24C164-10SC-1.8 pinout, AT24C164-10SC-1.8 application, or AT24C164-10SC-1.8 equivalent, key selection considerations include 1.8V–5.5V supply flexibility, 100 kHz I²C speed at 1.8V, 16-byte page write capability, WP pin-based hardware data lock, and JEDEC SOIC-8 packaging with industrial-grade temperature support.
Technical Context
The AT24C164-10SC-1.8 implements a standard two-wire I²C interface with open-drain SDA and edge-triggered SCL, supporting device addressing via A0–A2 pins for multi-drop bus configurations. Its internal memory is organized into 256 pages of 8 bytes each, enabling both byte and 16-byte page writes with automatic address incrementing within a page.
It features Schmitt-trigger inputs and noise filtering on SCL/SDA for robust operation in electrically noisy environments, and includes an active-low Write Protect (WP) pin that disables all write operations when asserted. Standby current is specified at 4 µA max at 1.8V, making it suitable for always-on low-power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for firmware calibration tables or device configuration profiles in compact embedded systems |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic families without level shifting |
| I²C Clock Frequency | 100 kHz at 1.8V - ensures reliable communication in low-power mode while maintaining timing margin |
| Write Cycle Time | 10 ms maximum - defines minimum interval between write commands; impacts real-time logging latency |
| Endurance | 1 million write cycles - supports frequent parameter updates over product lifetime (e.g., metering or sensor calibration) |
| Data Retention | 100 years at +25°C - guarantees long-term nonvolatile storage without refresh in unpowered applications |
| Package | 8-pin JEDEC SOIC (8S1), 0.150" width - compatible with standard automated PCB assembly and space-constrained layouts |
Pinout & Package
AT24C164-10SC-1.8 is housed in an 8-pin JEDEC-standard SOIC package (8S1), measuring 3.99 mm × 4.98 mm with 1.27 mm pitch. The package is RoHS-compliant, surface-mountable, and rated for commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | Hardwired or driven logic inputs that configure one of eight possible I²C slave addresses (0x50–0x57); enable bus sharing across multiple EEPROMs |
| SDA | Serial Data I/O | Open-drain bidirectional line for I²C data transfer; requires external pull-up resistor; supports wire-OR with other open-drain devices |
| SCL | Serial Clock Input | Positive-edge clock input for synchronizing data transfers; Schmitt-triggered for noise immunity in industrial environments |
| WP | Write Protect Control | Active-low hardware lock: tied to GND for normal writes, pulled high to disable all write operations including page and byte writes |
| VCC | Power Supply | Primary power rail (1.8V–5.5V); powers internal logic and memory array; decoupling capacitor required per layout guidelines |
| GND | Ground Reference | System ground return path for all internal circuitry and I/O signals; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Operation Support | Guaranteed functionality at VCC = 1.8V, enabling integration with modern ultra-low-power MCUs and SoCs without voltage translation |
| 16-Byte Page Write Mode | Reduces I²C transaction overhead by allowing up to 16 bytes to be written per stop condition, improving write throughput by ~16× vs. byte writes |
| Hardware Write Protection | WP pin provides fail-safe, non-software-dependent data integrity - critical for bootloader or security-critical configuration storage |
| Cascadable Architecture | Supports up to eight AT24C164-10SC-1.8 devices on a single I²C bus using A0–A2 address bits, simplifying multi-device memory expansion |
| Noise-Resilient Interface | Schmitt-trigger inputs and filtered timing paths ensure reliable I²C communication in EMI-prone industrial or automotive subsystems |
Applications
| Smart Meter Configuration Storage | Industrial PLC Parameter Backup |
|---|---|
Use Scenario: Storing tariff schedules, calibration coefficients, and tamper logs in electricity/water/gas meters operating on coin-cell or energy-harvested power. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed via I²C during boot and runtime updates; retains data across power loss. Use Value: 1.8V operation eliminates need for boost converters, reducing BOM cost and board area; 100-year data retention ensures compliance with utility certification requirements. |
Use Scenario: Preserving ladder logic settings, I/O mapping, and alarm thresholds in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Dedicated configuration EEPROM interfaced to PLC's microcontroller via isolated I²C bus; updated only during commissioning or firmware upgrade. Use Value: Hardware WP pin prevents accidental overwrites during field service; 1M endurance supports decades of reconfiguration cycles across equipment lifecycle. |
| Wearable Sensor Calibration Memory | Medical Device Settings Retention |
Use Scenario: Holding factory-calibrated offset/gain values for MEMS accelerometers and temperature sensors in fitness trackers and hearables. IC Role / Device Role / Timing Role: Low-power serial memory mapped to sensor hub MCU; read once at startup, written only during factory calibration or user recalibration. Use Value: 4 µA standby current at 1.8V extends battery life in always-on wearables; small SOIC-8 footprint fits tight wearable PCB real estate. |
Use Scenario: Storing user-prescribed therapy parameters (e.g., infusion rate, alarm thresholds) in portable insulin pumps and nebulizers requiring regulatory traceability. IC Role / Device Role / Timing Role: Secure, write-protected nonvolatile memory storing FDA/ISO 13485-compliant configuration data with audit trail capability. Use Value: 100-year data retention meets medical device shelf-life requirements; WP pin enforces controlled write access per IEC 62304 software safety classification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C16-DFMN6TP | STMicroelectronics 16K I²C EEPROM; operates from 1.7V–5.5V; 400 kHz max at ≥2.5V but only 100 kHz at 1.7V–1.8V; same SOIC-8 package | Identical 16K density and pinout; slightly wider 1.7V min supply; comparable endurance (1M cycles) and retention (200 years) | Select when sourcing from ST distribution channels or requiring extended data retention beyond 100 years |
| BR24G16NUX-10 | Rohm 16K I²C EEPROM; 1.6V–5.5V operation; 400 kHz at ≥2.5V, 100 kHz at 1.6V–1.8V; same SOIC-8 footprint; built-in write protect register | Includes software-configurable WP register in addition to hardware WP pin; supports faster 400 kHz operation above 2.5V | Choose when flexible write protection (hardware + register-based) and dual-speed I²C are required in mixed-voltage systems |
Compared with AT24C164-10SC-1.8, M24C16-DFMN6TP offers longer data retention but identical 1.8V timing; BR24G16NUX-10 adds software WP control and higher-speed capability above 2.5V, at the cost of added register management complexity.
Availability
AT24C164-10SC-1.8 is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, wearable sensors, and medical device design requiring stable component supply, long-term obsolescence planning, and consistent parametric performance across production batches.
Supply support for AT24C164-10SC-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 nonvolatile memory solutions, with a focus on reliability, longevity, and embedded system integration.
The AT24C164 series was designed for low-voltage, low-power embedded applications requiring robust I²C EEPROM storage - particularly in battery-operated, industrial, and automotive-qualified systems where voltage scalability and data integrity are critical.
FAQ
What is the minimum operating voltage for AT24C164-10SC-1.8?
The AT24C164-10SC-1.8 is fully specified to operate at a minimum supply voltage of 1.8V, with guaranteed functionality across its entire 1.8V to 5.5V range. This includes valid I²C communication at 100 kHz, proper write timing (≤10 ms), and correct logic-level interpretation of A0–A2 and WP inputs at 1.8V. It does not support operation below 1.8V.
Does AT24C164-10SC-1.8 support 400 kHz I²C communication at 1.8V?
No, AT24C164-10SC-1.8 supports only 100 kHz I²C clock frequency when operating at 1.8V. The 400 kHz speed grade applies exclusively to 5.0V operation (VCC = 4.5V to 5.5V). At 1.8V, AC timing parameters such as tLOW (4.7 µs min) and tHIGH (4.0 µs min) are relaxed to ensure reliable signal integrity under low-voltage conditions.
How many AT24C164-10SC-1.8 devices can share the same I²C bus?
Up to eight AT24C164-10SC-1.8 devices can be connected to a single I²C bus using the A0, A1, and A2 address pins. These three pins provide three binary bits, yielding eight unique 7-bit slave addresses (0x50 through 0x57). Each device must have a distinct combination of A0–A2 connections (to VCC or GND) to avoid address collisions.
What is the function of the WP pin on AT24C164-10SC-1.8?
The WP (Write Protect) pin on AT24C164-10SC-1.8 is an active-low hardware control that disables all write operations - including byte writes, page writes, and write cycles - when pulled high (≥0.7×VCC). When tied to GND, normal write functionality is enabled. This provides deterministic, non-software-dependent protection against unintended memory corruption.
Is AT24C164-10SC-1.8 qualified for industrial temperature operation?
No, AT24C164-10SC-1.8 is rated for commercial temperature range (0°C to +70°C), as indicated by the "C" suffix in the part number. For industrial operation (–40°C to +85°C), the correct variant is AT24C164-10SI-1.8 (SOIC) or AT24C164-10PI-1.8 (PDIP), where "I" denotes industrial grade. Using AT24C164-10SC-1.8 outside 0°C–70°C is not guaranteed per specification.
AT24C164-10SC-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C164-10SC-1.8 FAQ
1.How can I place an order for AT24C164-10SC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C164-10SC-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 AT24C164-10SC-1.8 reliable?
The price and inventory of AT24C164-10SC-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 AT24C164-10SC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C164-10SC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C164-10SC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C164-10SC-1.8?
AT24C164-10SC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C164-10SC-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 AT24C164-10SC-1.8?
For technical support, including AT24C164-10SC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C164-10SC-1.8 requirements.
6.How does Aetrix verify that AT24C164-10SC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C164-10SC-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 AT24C164-10SC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C164-10SC-1.8?
All AT24C164-10SC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C164-10SC-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 AT24C164-10SC-1.8 part is unused and in its original packaging.
Return procedure for AT24C164-10SC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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