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Microchip Technology AT24C164-10SI-2.7
- Part No.:
- AT24C164-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C164-10SI-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,113
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Product details
Overview
AT24C164-10SI-2.7 from Microchip Technology (formerly Atmel) is a 16K-bit (2048 × 8) I²C-compatible serial EEPROM optimized for low-voltage industrial systems. It operates from 2.7V to 5.5V, supports 100 kHz I²C bus speed, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention in an 8-pin JEDEC SOIC package.
For engineers reviewing the AT24C164-10SI-2.7 datasheet, AT24C164-10SI-2.7 pinout, AT24C164-10SI-2.7 application, or AT24C164-10SI-2.7 equivalent, key selection factors include its industrial temperature range (–40°C to +85°C), 16-byte page write capability, Schmitt-trigger inputs for noise immunity, cascading support for up to eight devices on one bus, and compatibility with microcontroller-based embedded control and configuration storage.
Technical Context
The AT24C164-10SI-2.7 implements a two-wire I²C interface with open-drain SDA and edge-triggered SCL, supporting standard-mode (100 kHz) timing at 2.7V–5.5V. Its internal address space is segmented into 256 pages of 8 bytes each, enabling 16-byte page writes with automatic lower-address incrementing and wraparound within the same page.
Device addressing uses three hardware-selectable pins (A0–A2) to assign one of eight unique I²C slave addresses on a shared bus. The WP pin provides hardware-level write inhibition when driven high, independent of software commands - a critical feature for firmware integrity in industrial power-up sequences and brown-out conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), organized as 256 pages × 8 bytes - enables efficient block-level configuration storage with minimal address overhead. |
| Supply Voltage Range | 2.7V to 5.5V - supports mixed-voltage system integration without level-shifting in industrial controllers and sensor nodes. |
| I²C Clock Frequency | 100 kHz max at 2.7V - ensures reliable communication under worst-case voltage/temperature conditions in extended-temperature applications. |
| Write Cycle Time | 10 ms maximum - defines minimum inter-write interval for deterministic firmware timing in real-time logging or calibration updates. |
| Endurance | 1 million write cycles - guarantees ≥10 years of daily 274-write operations in field-deployed equipment with infrequent parameter updates. |
| Data Retention | 100 years at +25°C - ensures nonvolatile storage integrity across product lifecycle without refresh mechanisms. |
| ESD Protection | >3000 V HBM - provides robust handling margin during board assembly and field service in unshielded industrial environments. |
Pinout & Package
AT24C164-10SI-2.7 is housed in an 8-pin JEDEC-standard SOIC package (8S1), 0.150" wide, with gull-wing leads. This surface-mount package supports automated PCB assembly and meets IPC-7351B footprint requirements for thermal and mechanical reliability in industrial-grade boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | Hardwired address bits enabling up to eight AT24C164-10SI-2.7 devices on a single I²C bus without address conflict. |
| SDA | Serial Data I/O | Open-drain bidirectional line for I²C data transfer; requires external pull-up resistor and supports wire-OR with other I²C peripherals. |
| SCL | Serial Clock Input | Positive-edge clock input synchronizing all data transfers; tolerant of slow rise/fall times due to integrated noise filtering. |
| WP | Write Protect Control | Active-high hardware lock disabling all write operations - prevents accidental overwrites during power transitions or firmware faults. |
| VCC | Power Supply | Primary supply rail (2.7V–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; must be connected to low-impedance PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte Page Write Mode | Reduces firmware overhead by allowing burst writes of up to 16 bytes per I²C transaction - cuts configuration update time by ~8× vs. byte-by-byte writes. |
| Schmitt Trigger Inputs | Eliminates false triggering from noisy industrial bus lines by enforcing clean signal thresholds on SCL and SDA, even with slow-rising waveforms. |
| Cascadable Architecture | Enables scalable memory expansion using only two I²C signals - no additional GPIOs or address decoding logic required for multi-device systems. |
| Self-Timed Write Cycle | Removes need for host MCU to poll status or manage variable write latency - simplifies driver code and avoids bus contention during internal programming. |
| Industrial Temperature Range | Guaranteed operation from –40°C to +85°C - qualified for deployment in motor drives, PLC modules, and outdoor metering without derating. |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping tables, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Nonvolatile configuration register providing persistent settings across cold starts and firmware updates. Use Value: Ensures deterministic system behavior after power loss; eliminates manual reconfiguration and supports remote parameter updates via Modbus-to-I²C gateways. | Use Scenario: Holding factory-trimmed offset/gain coefficients and linearization lookup tables in MEMS pressure and temperature sensors used in HVAC and process control. IC Role / Device Role / Timing Role: Calibration data repository accessed once at sensor initialization, then read-only during normal operation. Use Value: Maintains measurement accuracy over 10+ years without battery backup; WP pin prevents corruption during sensor node firmware upgrades. |
| Embedded Power Supply Sequencing | Medical Device Setup Profiles |
Use Scenario: Storing startup delay values, voltage ramp rates, and fault recovery timeouts in digitally controlled AC/DC and DC/DC power modules. IC Role / Device Role / Timing Role: Timing configuration store accessed by digital PWM controller at power-on reset. Use Value: Enables precise, repeatable power sequencing across batch-manufactured units; supports field recalibration via service port without hardware changes. | Use Scenario: Saving user-selected therapy modes, dose limits, and alarm sensitivity levels in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Secure setup parameter vault with hardware write lock active during clinical operation. Use Value: Meets IEC 62304 safety requirements for persistent configuration; WP pin enforces read-only access during treatment delivery to prevent unintended changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T | Same 16K-bit density and SOIC-8 package, but rated for 1.7V–5.5V operation and offers 400 kHz I²C speed at 5V only - not guaranteed at 2.7V. | Designed for consumer-grade applications with tighter cost targets; lacks industrial temperature qualification (–40°C to +85°C). | Select if higher-speed operation at 5V is required and ambient temperature stays within commercial range (0°C to 70°C). |
| M24C16-RMN6TP | 16K-bit I²C EEPROM in SOIC-8, specified for 1.8V–5.5V, with 100 kHz speed at 1.8V and 400 kHz at 5V; endurance rated at 4M cycles. | Qualified to AEC-Q100 Grade 3 (–40°C to +85°C) and offered with automotive traceability - broader qualification than AT24C164-10SI-2.7. | Choose for automotive or high-reliability industrial use where extended endurance and full automotive documentation are mandatory. |
Compared with AT24C164-10SI-2.7, AT24C16D-SSHM-T trades industrial temperature support for wider low-voltage operation, while M24C16-RMN6TP adds automotive qualification and higher endurance at the cost of slightly higher unit price and different manufacturer ecosystem support.
Availability
AT24C164-10SI-2.7 is available at Aetrix Electronics and suitable for industrial control systems, smart sensor nodes, and medical device configuration storage requiring stable component supply across long production lifecycles.
Supply support for AT24C164-10SI-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 embedded control and connectivity.
The AT24C164 series belongs to Microchip's legacy serial EEPROM product line, designed specifically for reliable, low-power configuration and calibration data storage in industrial, medical, and communications equipment operating across extended temperature ranges.
FAQ
What is the operating voltage range for the AT24C164-10SI-2.7?
The AT24C164-10SI-2.7 operates from 2.7V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This voltage range is explicitly defined in the ordering information table and confirmed in the DC characteristics section of the datasheet, where ISB3 (standby current at 2.7V) and VCC3 (supply voltage min/max) are specified. The "-2.7" suffix denotes this specific low-voltage variant.
Does the AT24C164-10SI-2.7 support page write operations?
Yes, the AT24C164-10SI-2.7 supports 16-byte page write mode, allowing up to 16 sequential bytes to be written in a single I²C transaction. This capability is documented in the Features list and elaborated in the Write Operations section, where it states that the internal address counter increments automatically within the same 8-byte page boundary, and roll-over occurs only when exceeding the 16-byte limit.
What is the function of the WP pin on the AT24C164-10SI-2.7?
The WP (Write Protect) pin on the AT24C164-10SI-2.7 provides hardware-level inhibition of all write operations when driven high. As described in the Pin Description section, tying WP to VCC disables writes regardless of I²C command state - a critical safeguard against firmware bugs or power glitches corrupting stored configuration data. This behavior is independent of software control and remains active across power cycles.
Is the AT24C164-10SI-2.7 qualified for industrial temperature operation?
Yes, the AT24C164-10SI-2.7 is rated for industrial temperature operation from –40°C to +85°C. This is confirmed in the Ordering Information table, where "AT24C164-10SI-2.7" is explicitly listed under the Industrial column with "-40°C to 85°C" in the Operation Range field. The "I" in the part number suffix denotes industrial temperature grade.
How many devices can share the same I²C bus with the AT24C164-10SI-2.7?
Up to eight AT24C164-10SI-2.7 devices can share a common I²C bus using the A0, A1, and A2 address input pins. As stated in the Description and Device Addressing sections, these three pins allow hardwiring to VSS or VCC to select one of eight unique 7-bit slave addresses (1010xxx in binary), enabling scalable memory expansion without additional bus controllers or multiplexers.
AT24C164-10SI-2.7 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C164-10SI-2.7 FAQ
1.How can I place an order for AT24C164-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C164-10SI-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 AT24C164-10SI-2.7 reliable?
The price and inventory of AT24C164-10SI-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 AT24C164-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C164-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C164-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C164-10SI-2.7?
AT24C164-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C164-10SI-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 AT24C164-10SI-2.7?
For technical support, including AT24C164-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C164-10SI-2.7 requirements.
6.How does Aetrix verify that AT24C164-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C164-10SI-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 AT24C164-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C164-10SI-2.7?
All AT24C164-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C164-10SI-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 AT24C164-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT24C164-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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