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Microchip Technology AT24C164-10SC-2.5
- Part No.:
- AT24C164-10SC-2.5
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C164-10SC-2.5.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,649
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Product details
Overview
AT24C164-10SC-2.5 from Atmel (now Microchip) is a 16K-bit (2048 × 8) two-wire serial EEPROM optimized for low-voltage embedded systems. It operates from 2.5V to 5.5V, supports 100 kHz I²C communication, 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 AT24C164-10SC-2.5 datasheet, AT24C164-10SC-2.5 pinout, AT24C164-10SC-2.5 application, or AT24C164-10SC-2.5 equivalent, this device is selected for space-constrained industrial control modules, automotive body electronics requiring extended temperature reliability, and battery-powered IoT sensor nodes where 2.5V operation and page-write efficiency are critical.
Technical Context
The AT24C164-10SC-2.5 implements a standard I²C-compatible two-wire interface with open-drain SDA and edge-triggered SCL, supporting bidirectional data transfer and acknowledge polling during internal write cycles. Its memory is organized into 256 pages of 8 bytes each, enabling 16-byte page writes with automatic lower-address-bit incrementing within the same page.
It uses Schmitt-trigger inputs with noise filtering on SDA and SCL, supports cascading up to eight devices via A0–A2 address pins, and enters low-power standby mode after STOP condition completion or power-up - with ISB ≤ 4 µA at 2.5V across commercial temperature range (0°C to 70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for firmware configuration tables or calibration data in microcontroller-based systems |
| Supply Voltage Range | 2.5V to 5.5V - enables direct integration with 2.5V logic domains without level shifting |
| I²C Clock Frequency | 100 kHz max at 2.5V - ensures timing compliance with legacy or noise-sensitive bus designs |
| Write Cycle Time | 10 ms max - defines minimum interval between successive write commands; impacts real-time logging latency |
| Endurance | 1 million write cycles - supports frequent parameter updates in field-deployed equipment |
| Data Retention | 100 years at +25°C - guarantees long-term storage integrity without refresh in unpowered applications |
| ESD Protection | >3000 V HBM - provides robust handling margin during board assembly and end-user service |
Pinout & Package
AT24C164-10SC-2.5 is housed in an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, gull-wing lead form, RoHS-compliant, with 1.27 mm pitch and surface-mount compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | Hardwired or driven to VSS/VDD to select one of eight possible addresses on shared I²C bus |
| 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 clock input for data latching; negative-edge for data output timing |
| WP | Write Protect Control | Active-low hardware lock: tied to GND for write enable, VCC for read-only mode |
| VCC | Power Supply | 2.5V–5.5V main supply; decoupling capacitor required near pin for noise immunity |
| GND | Ground Reference | Signal and power return path; must be low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte Page Write Mode | Reduces I²C transaction overhead by writing up to 16 bytes per stop condition - cuts firmware update time vs. byte-by-byte writes |
| Schmitt Trigger Inputs | Enables reliable operation in electrically noisy environments (e.g., motor drives, automotive cabins) without external signal conditioning |
| Cascadable Architecture | Supports up to eight AT24C164-10SC-2.5 devices on one I²C bus - simplifies multi-sensor node memory expansion |
| Self-Timed Write Cycle | Automatically manages internal programming timing; eliminates need for host MCU to track variable write duration |
| Low Standby Current | ≤4 µA at 2.5V/25°C - extends battery life in always-on sensor nodes and portable diagnostic tools |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module |
|---|---|
Use Scenario: Storing user-defined I/O mapping, alarm thresholds, and calibration offsets in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field-upgradable settings without firmware reflashing; 2.5V operation matches modern low-power PLC power rails. |
Use Scenario: Retaining seat position memory, mirror angle presets, and lighting profiles in vehicle door modules operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Persistent parameter store interfaced to 8-bit microcontroller over 100 kHz I²C bus under EMI-heavy chassis conditions. Use Value: Schmitt-trigger inputs and >3000 V ESD withstand ensure robustness against load-dump transients and assembly handling. |
| Smart Energy Meter Calibration Data | Medical Diagnostic Handheld Settings |
Use Scenario: Holding meter-specific gain/offset coefficients and tariff schedules updated during utility field calibration and firmware upgrades. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage accessed only during authenticated maintenance sessions using WP pin lockdown. Use Value: Hardware write protection prevents accidental corruption during brown-out events or software glitches in revenue-critical meters. |
Use Scenario: Saving user-selected display contrast, language preference, and measurement unit defaults in portable ultrasound or glucose monitors. IC Role / Device Role / Timing Role: Low-power nonvolatile memory powered directly from 2.5V LDO rail, minimizing quiescent current draw. Use Value: 4 µA standby current at 2.5V extends single-charge battery life beyond 12 months in intermittent-use clinical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C16-WMN6TP | 16K-bit I²C EEPROM; 1.8V–5.5V supply; 400 kHz max clock at 5V but only 100 kHz guaranteed at 2.5V; identical SOIC-8 package | Same pinout and basic functionality; slightly higher ISB (10 µA @ 2.5V) and lower endurance (400k cycles) | Select when higher-speed 400 kHz operation is needed at 5V, or when sourcing from STMicroelectronics preferred supply chain |
| BR24G16FJ-WE2 | 16K-bit I²C EEPROM; 1.7V–5.5V supply; 1 MHz max clock (with fast-mode+ support); 8-pin TSSOP package (not SOIC) | Requires PCB layout change due to TSSOP footprint; offers faster write times (5 ms typ) and better low-Vcc noise immunity | Choose for next-gen designs needing faster write throughput or tighter board area constraints - verify mechanical compatibility |
Compared with M24C16-WMN6TP and BR24G16FJ-WE2, the AT24C164-10SC-2.5 provides guaranteed 100 kHz operation at 2.5V in JEDEC SOIC, superior endurance (1M vs. 400k cycles), and proven field reliability in automotive and industrial deployments - making it optimal for cost-sensitive, long-lifecycle applications where pinout stability and qualification history matter.
Availability
AT24C164-10SC-2.5 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and smart metering applications requiring stable component supply, long-term lifecycle assurance, and consistent SOIC-8 packaging.
Supply support for AT24C164-10SC-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 (formerly Atmel) is a global semiconductor company specializing in microcontrollers, analog components, and nonvolatile memory solutions for embedded systems.
The AT24C164 series was designed for reliable, low-voltage serial data storage in resource-constrained embedded applications - emphasizing interoperability, long-term data integrity, and seamless integration with 8-bit and 32-bit microcontrollers via standard I²C.
FAQ
What voltage range does the AT24C164-10SC-2.5 support?
The AT24C164-10SC-2.5 supports a supply voltage range of 2.5V to 5.5V. This allows direct operation from common low-voltage rails such as 2.5V, 3.3V, or 5V without level translation. The "-2.5" suffix specifically denotes qualification and guaranteed performance across this 2.5V minimum threshold, including AC timing and DC parameters like standby current and noise immunity.
Does the AT24C164-10SC-2.5 support page writes, and what is the page size?
Yes, the AT24C164-10SC-2.5 supports 16-byte page writes. Its internal memory is organized into 256 pages of 8 bytes each, but the device implements a 16-byte page write buffer that allows up to 16 sequential bytes to be written in a single I²C transaction. This reduces bus overhead compared to individual byte writes and improves firmware update efficiency in the AT24C164-10SC-2.5.
How is hardware write protection implemented on the AT24C164-10SC-2.5?
The AT24C164-10SC-2.5 uses the WP (Write Protect) pin for hardware-level write inhibition. When WP is pulled high (typically to VCC), all write operations - including byte and page writes - are blocked, and only read access remains enabled. When WP is grounded, full read/write capability is restored. This feature prevents accidental or malicious overwrites during power transitions or firmware errors in the AT24C164-10SC-2.5.
What is the maximum I²C clock frequency supported by the AT24C164-10SC-2.5?
The AT24C164-10SC-2.5 supports a maximum I²C clock frequency of 100 kHz when operating at 2.5V. While higher speeds (up to 400 kHz) are specified at 5V, the "-2.5" variant is characterized and guaranteed for 100 kHz operation across its full 2.5V–5.5V supply range and commercial temperature grade (0°C to 70°C), ensuring deterministic timing in the AT24C164-10SC-2.5.
Is the AT24C164-10SC-2.5 compatible with standard I²C protocol and addressing?
Yes, the AT24C164-10SC-2.5 fully complies with standard I²C protocol requirements, including START/STOP conditions, ACK/NACK handshaking, and 7-bit device addressing with R/W bit. Its base address is 0x50 (1010xxx), configurable via A0–A2 pins to support up to eight devices on one bus. This ensures drop-in compatibility with any I²C master controller in the AT24C164-10SC-2.5 implementation.
AT24C164-10SC-2.5 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:
- 2.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C164-10SC-2.5 FAQ
1.How can I place an order for AT24C164-10SC-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C164-10SC-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 AT24C164-10SC-2.5 reliable?
The price and inventory of AT24C164-10SC-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 AT24C164-10SC-2.5 is usually 5 days.
3.What payment methods are accepted for AT24C164-10SC-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C164-10SC-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C164-10SC-2.5?
AT24C164-10SC-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C164-10SC-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 AT24C164-10SC-2.5?
For technical support, including AT24C164-10SC-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C164-10SC-2.5 requirements.
6.How does Aetrix verify that AT24C164-10SC-2.5 is sourced from the original manufacturer or authorized distributors?
All AT24C164-10SC-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 AT24C164-10SC-2.5 meets industry standards.
7.What is the process for return or replacement of AT24C164-10SC-2.5?
All AT24C164-10SC-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C164-10SC-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 AT24C164-10SC-2.5 part is unused and in its original packaging.
Return procedure for AT24C164-10SC-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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