My Inquiry
My Account
Microchip Technology AT24C164-10SU-2.7
- Part No.:
- AT24C164-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C164-10SU-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,152
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C164-10SU-2.7 from Microchip Technology (formerly Atmel) is a 16 Kbit (2048 × 8) serial EEPROM with I²C-compatible 2-wire interface, optimized for low-voltage industrial applications requiring 2.7V to 5.5V operation, hardware write protection via WP pin, and 16-byte page write capability. It supports 100 kHz clock frequency at 2.7V and delivers 1 million write cycles with 100-year data retention.
For engineers reviewing the AT24C164-10SU-2.7 datasheet, AT24C164-10SU-2.7 pinout, AT24C164-10SU-2.7 application, or AT24C164-10SU-2.7 equivalent, key selection considerations include its SOIC-8 package, automotive-grade temperature range (–40°C to +85°C), lead-free/halogen-free compliance, cascading support for up to eight devices on one bus, and Schmitt-triggered noise-immune inputs.
Technical Context
The AT24C164-10SU-2.7 implements a standard I²C protocol with start/stop condition detection, 9-bit acknowledge polling, and bidirectional open-drain SDA communication synchronized to SCL edges. Its internal address counter enables current-address, random-address, and sequential read modes without external address latching.
Memory is organized into 256 pages of 8 bytes each, supporting partial and full 16-byte page writes with automatic lower-4-bit address incrementing. The device enters standby mode after STOP bit reception and features hardware write protection via the WP pin - active high to inhibit all writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Kbit (2048 × 8 bits), enabling storage of firmware patches, calibration data, or configuration registers in space-constrained systems. |
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration with 3.3V and 5V microcontrollers without level-shifting. |
| I²C Clock Frequency | 100 kHz max at 2.7V - ensures reliable timing margin under low-voltage conditions with standard-mode I²C controllers. |
| Write Cycle Time | 10 ms maximum - defines minimum interval between successive write commands; impacts real-time logging latency. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - suitable for field-updatable systems requiring long-term reliability without refresh. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments per AEC-Q200 stress requirements. |
| Package | 8-lead JEDEC SOIC (8S1), 0.150" wide - compatible with standard surface-mount reflow profiles and automated assembly. |
Pinout & Package
AT24C164-10SU-2.7 is housed in an 8-lead JEDEC SOIC (8S1) package with 1.27 mm pitch, 5.79–6.20 mm body width (E), and 4.80–5.00 mm length (D). Pin 1 is marked by a beveled corner or dot; orientation follows standard SOIC pin 1 indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | Hardwired to VSS or VCC to select one of eight unique I²C addresses (0x50–0x57); enables multi-device bus sharing without software arbitration. |
| SDA | Serial Data I/O | Open-drain bidirectional line - requires external pull-up; supports wire-OR with other I²C peripherals on same bus segment. |
| SCL | Serial Clock Input | Positive-edge sampled input - clocks data in/out; timing must meet tLOW ≥ 4.7 µs and tHIGH ≥ 4.0 µs at 2.7V. |
| WP | Write Protect Control | Active-high logic input - tied to VCC to disable all write operations; prevents accidental overwrites during power transitions or firmware updates. |
| VCC | Power Supply | 2.7V–5.5V supply rail - powers internal logic and memory array; decoupling capacitor (0.1 µF) required within 10 mm of pin. |
| GND | Ground Reference | System ground return path - must be connected before VCC during power-up to ensure proper initialization. |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte Page Write Mode | Reduces firmware update time by up to 15× vs. byte-write - critical for rapid parameter reconfiguration in industrial PLCs. |
| Schmitt Trigger Inputs | Suppresses noise-induced false starts/stops on SDA/SCL - eliminates need for external RC filtering in electrically noisy factory-floor environments. |
| Cascadable Architecture | Supports up to eight AT24C164-10SU-2.7 devices on single I²C bus - simplifies BOM consolidation and reduces controller GPIO count. |
| Hardware Write Protection | WP pin provides fail-safe, non-software-dependent lockout - essential for safety-critical boot configuration storage in medical devices. |
| Low Standby Current | 1.6 µA typical at 2.7V - extends battery life in portable instrumentation and wireless sensor nodes operating in sleep mode. |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing temperature-compensated offset/gain coefficients for analog sensor front-ends in factory automation transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding factory-trimmed calibration constants accessed at power-on reset. Use Value: Enables plug-and-play sensor replacement without manual recalibration; leverages 100-year retention to avoid field drift correction. |
Use Scenario: Saving user preferences (seat position, mirror angle, climate settings) in vehicle door modules. IC Role / Device Role / Timing Role: I²C slave storing persistent user data across ignition cycles; accessed via microcontroller during wake-up sequence. Use Value: Supports AEC-Q200-compliant operation at –40°C to +85°C; WP pin prevents corruption during load-dump transients. |
| Medical Device Configuration | Smart Energy Meter Firmware Patch Storage |
|
Use Scenario: Holding regulatory-compliant device ID, serial number, and usage counters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for audit-trail data; write-protected via WP during normal operation. Use Value: Meets IEC 62304 software lifecycle requirements; 1M endurance supports >10 years of daily usage logging. |
Use Scenario: Storing delta updates for metrology firmware in utility-grade electricity meters deployed in remote substations. IC Role / Device Role / Timing Role: Field-upgradable code repository accessed only during secure OTA update windows. Use Value: 16-byte page writes minimize update duration - reducing risk of brownout corruption during grid instability events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-WMN6TP | 128 Kbit SPI interface, 5V-only (4.5–5.5V), no WP pin, 5 ms write cycle | Requires SPI-capable MCU; lacks hardware write protection and low-voltage operation | Select when higher density and faster write speed are prioritized over I²C compatibility and 2.7V operation. |
| 24LC16B-I/P | 16 Kbit I²C, 2.5–5.5V, PDIP/SOIC, 1M endurance, but no automotive temp grade or halogen-free option | Industrial temp only (–40°C to +85°C), not AEC-Q200 qualified; RoHS compliant but not halogen-free | Choose for cost-sensitive non-automotive designs where extended temperature and green compliance are not required. |
Compared with M95128-WMN6TP and 24LC16B-I/P, the AT24C164-10SU-2.7 uniquely combines I²C compatibility, 2.7V operation, automotive qualification, and halogen-free packaging - making it the only drop-in solution for safety-critical, low-power, and environmentally regulated embedded systems.
Availability
AT24C164-10SU-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, medical device configuration, and smart energy meter firmware patch storage requiring stable component supply across extended product lifecycles.
Supply support for AT24C164-10SU-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 memory solutions, with a focus on embedded control and connectivity.
The AT24C164-10SU-2.7 belongs to Microchip's legacy Atmel serial EEPROM product line, designed specifically for robust, low-power, and automotive-grade nonvolatile data storage in resource-constrained embedded systems.
FAQ
What voltage range does the AT24C164-10SU-2.7 support?
The AT24C164-10SU-2.7 operates from 2.7V to 5.5V, making it compatible with both 3.3V and 5V system rails. This dual-voltage capability eliminates the need for level shifters when interfacing with mixed-voltage microcontrollers or FPGAs, and ensures stable operation across varying power supply conditions in industrial environments.
Does the AT24C164-10SU-2.7 support I²C fast mode?
No, the AT24C164-10SU-2.7 supports standard-mode I²C only, with a maximum clock frequency of 100 kHz at 2.7V. While some 5V variants of the AT24C164 family support 400 kHz, the -2.7V version is characterized and specified strictly for 100 kHz operation to guarantee timing margins and noise immunity under low-voltage conditions.
How many devices can share the same I²C bus with the AT24C164-10SU-2.7?
Up to eight AT24C164-10SU-2.7 devices can be cascaded on a single I²C bus using the A0, A1, and A2 address pins. Each combination of these three inputs selects a unique 7-bit device address (0x50–0x57), enabling scalable memory expansion without additional I²C controllers or multiplexers in multi-sensor or modular systems.
What is the purpose of the WP pin on the AT24C164-10SU-2.7?
The WP (Write Protect) pin on the AT24C164-10SU-2.7 provides hardware-level write inhibition: when pulled high to VCC, all write operations-including byte, page, and erase-are blocked regardless of I²C command content. This prevents accidental or malicious overwrites during power-up, brownout, or firmware update sequences, enhancing system integrity in safety-critical applications.
Is the AT24C164-10SU-2.7 suitable for automotive applications?
Yes, the AT24C164-10SU-2.7 is explicitly qualified for automotive use with an operating temperature range of –40°C to +85°C and lead-free/halogen-free packaging. It meets AEC-Q200 stress test requirements for passive components and is commonly deployed in body control modules, instrument clusters, and ADAS subsystems where long-term data integrity and environmental resilience are mandatory.
AT24C164-10SU-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
AT24C164-10SU-2.7 FAQ
1.How can I place an order for AT24C164-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C164-10SU-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 AT24C164-10SU-2.7 reliable?
The price and inventory of AT24C164-10SU-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 AT24C164-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C164-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C164-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C164-10SU-2.7?
AT24C164-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C164-10SU-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 AT24C164-10SU-2.7?
For technical support, including AT24C164-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C164-10SU-2.7 requirements.
6.How does Aetrix verify that AT24C164-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C164-10SU-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 AT24C164-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C164-10SU-2.7?
All AT24C164-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C164-10SU-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 AT24C164-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT24C164-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C164-10SU-2.7 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
