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Microchip Technology AT24C01-10PI-1.8
- Part No.:
- AT24C01-10PI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C01-10PI-1.8.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
AT24C01-10PI-1.8 from Microchip Technology (formerly Atmel) is a 1 Kbit (128 × 8) serial EEPROM IC optimized for low-voltage embedded systems, featuring 2-wire I²C-compatible interface, 1.8V to 5.5V supply operation, and 4-byte page write capability. It delivers nonvolatile data storage in space-constrained industrial control modules, sensor nodes, and power management subsystems requiring reliable retention over 100 years.
For engineers reviewing the AT24C01-10PI-1.8 datasheet, AT24C01-10PI-1.8 pinout, AT24C01-10PI-1.8 application, or AT24C01-10PI-1.8 equivalent, key selection criteria include 1.8V minimum VCC support, 100 kHz I²C timing at 1.8V, PDIP-8 package compatibility, and automotive-grade temperature range (-40°C to +85°C) with 1 million write cycles endurance.
Technical Context
The AT24C01-10PI-1.8 implements a fixed 7-bit I²C slave address with hardware-selectable A0–A2 pins, supports standard-mode (100 kHz) and fast-mode (400 kHz at ≥2.7V) timing, and uses open-drain SDA/SCL with external pull-ups. Its internal architecture includes a 128-word linear memory map accessed via 7-bit word addressing.
Write operations are self-timed with ≤10 ms completion, during which all inputs are disabled; acknowledge polling enables host synchronization. Standby current is as low as 0.6 µA at 1.8V, supporting battery-powered applications without compromising data integrity or retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8 bits), enabling compact configuration storage for microcontrollers with minimal footprint |
| Supply Voltage Range | 1.8V to 5.5V - supports direct integration into 1.8V logic domains without level-shifting |
| I²C Clock Frequency | 100 kHz at 1.8V - ensures robust communication in ultra-low-power systems |
| Page Write Capacity | 4 bytes per write cycle - reduces bus transactions and improves firmware efficiency |
| Endurance | 1 million write cycles - suitable for frequent calibration or logging use cases |
| Data Retention | 100 years at +25°C - guarantees long-term reliability in unattended equipment |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments without derating |
Pinout & Package
AT24C01-10PI-1.8 is supplied in an 8-lead PDIP (Plastic Dual Inline Package), 0.300" wide body, with 0.100" lead pitch. Pin 1 is marked by notch or dot; leads are gull-wing shaped and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Unused pin - must remain floating or grounded per layout guidelines; no internal connection |
| 2 (NC) | No Connect | Unused pin - electrically isolated; no routing required |
| 3 (NC) | No Connect | Unused pin - no function; PCB pad may be omitted if allowed by fab rules |
| 4 (GND) | Ground Reference | Primary return path for VCC and I/O - requires low-impedance connection to system ground plane |
| 5 (VCC) | Power Supply | 1.8V–5.5V input - decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin |
| 6 (TEST) | Test Input | Factory test pin - must be tied to GND or VCC; not used in normal operation |
| 7 (SCL) | Serial Clock Input | Open-drain input - requires external pull-up resistor (typically 4.7 kΩ) to VCC |
| 8 (SDA) | Serial Data I/O | Bidirectional open-drain line - shared across I²C bus; pull-up required for bus arbitration |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation | Functional down to 1.8V VCC - eliminates need for voltage translators in 1.8V SoC designs |
| Page Write Mode | 4-byte burst writes reduce I²C transaction overhead by up to 75% vs. byte-by-byte writes |
| Self-Timed Write Cycle | ≤10 ms internal erase/write - simplifies firmware timing without polling delays or timeouts |
| High Endurance | 1 million write cycles - supports daily firmware updates or sensor calibration over 27 years |
| Extended Temp Range | -40°C to +85°C operation - validated for industrial PLCs and outdoor metering hardware |
Applications
| Industrial Sensor Calibration | Consumer Device Configuration Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during power-up initialization via I²C at 100 kHz. Use Value: Enables field-replaceable sensor modules with persistent calibration data across 100+ years without backup battery. |
Use Scenario: Holding user preferences (brightness, language, network SSID) in smart thermostats and home hubs. IC Role / Device Role / Timing Role: Low-power configuration memory written infrequently and read at boot via 1.8V-tolerant I²C. Use Value: Reduces standby current to sub-µA levels while retaining settings through 10-year battery life. |
| Power Management Unit (PMU) Settings | Embedded Firmware Bootloader Parameters |
Use Scenario: Saving dynamic voltage/frequency scaling (DVFS) tables and fault logs in telecom base station PMUs. IC Role / Device Role / Timing Role: High-reliability storage for critical runtime parameters updated under watchdog supervision. Use Value: Withstands 1M write cycles and retains data at +85°C ambient - avoids corruption during thermal stress events. |
Use Scenario: Storing secure boot flags, firmware version counters, and rollback protection keys in MCU-based edge gateways. IC Role / Device Role / Timing Role: Tamper-resistant configuration store accessed only by trusted bootloader via isolated I²C bus. Use Value: 100-year retention ensures bootloader integrity remains intact across product lifecycle without refresh. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C01-RMN6TP | 1 Kbit, 1.7V–5.5V, SOIC-8, 400 kHz max at ≥2.5V | Higher speed at 2.5V+, but no 1.8V-rated AC specs; lacks TEST pin | Preferred when board uses SOIC-8 and requires faster write throughput above 2.5V |
| CAT24C01WI-GT3 | 1 Kbit, 1.7V–5.5V, TSSOP-8, 100 kHz at 1.7V, no TEST pin | Same 1.8V timing compliance, smaller TSSOP-8 footprint, no TEST pin functionality | Optimal for space-constrained designs where PDIP is not feasible and TEST pin is unused |
Compared with AT24C01-10PI-1.8, M24C01-RMN6TP offers higher I²C speed above 2.5V but lacks guaranteed 100 kHz operation at 1.8V, while CAT24C01WI-GT3 matches 1.8V timing and endurance but omits the TEST pin and uses TSSOP packaging - both require layout changes and validation of pin function mapping.
Availability
AT24C01-10PI-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, consumer device configuration storage, and power management unit (PMU) settings requiring stable component supply, long-term obsolescence planning, and traceable sourcing.
Supply support for AT24C01-10PI-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 a focus on reliability, longevity, and industrial-grade qualification.
The AT24C01 series was designed for cost-sensitive, low-power embedded systems needing robust nonvolatile storage - targeting industrial automation, automotive subsystems, and IoT endpoints where data integrity and extended temperature operation are mandatory.
FAQ
What is the minimum operating voltage for AT24C01-10PI-1.8?
The AT24C01-10PI-1.8 operates down to 1.8V, with full DC and AC specifications guaranteed across 1.8V to 5.5V. At 1.8V, it supports 100 kHz I²C communication, 0.6 µA standby current, and 10 ms write cycle - making it suitable for battery-backed or energy-harvesting systems where rail voltage drops near 1.8V.
Does AT24C01-10PI-1.8 support page write, and how many bytes per page?
Yes, AT24C01-10PI-1.8 supports 4-byte page write mode. After the initial byte is acknowledged, the internal address pointer auto-increments for up to three additional bytes within the same 4-byte boundary. Exceeding this causes wraparound to the start of the page - enabling efficient multi-byte updates without repeated start conditions.
What is the function of the TEST pin on AT24C01-10PI-1.8?
The TEST pin on AT24C01-10PI-1.8 is a factory test input and must be externally tied to either GND or VCC during normal operation. It has no functional role in I²C communication or memory access. Leaving it floating may cause undefined behavior; Microchip documentation specifies it must be hard-wired to a valid logic level.
Is AT24C01-10PI-1.8 qualified for automotive applications?
AT24C01-10PI-1.8 is rated for industrial temperature range (-40°C to +85°C) and is not AEC-Q100 qualified. While it shares design heritage with automotive-grade variants (e.g., AT24C01-10PI-2.7 with extended temp), this specific variant is intended for industrial and commercial use - not safety-critical automotive ECUs.
How does AT24C01-10PI-1.8 handle write completion detection?
AT24C01-10PI-1.8 supports acknowledge polling: after issuing a write command, the host sends repeated START + device address (with R/W = 0) until the EEPROM responds with ACK, indicating the internal write cycle has completed. This avoids fixed delays and adapts to actual write time, which remains ≤10 ms across voltage and temperature.
AT24C01-10PI-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C01-10PI-1.8 FAQ
1.How can I place an order for AT24C01-10PI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C01-10PI-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 AT24C01-10PI-1.8 reliable?
The price and inventory of AT24C01-10PI-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 AT24C01-10PI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C01-10PI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C01-10PI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C01-10PI-1.8?
AT24C01-10PI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C01-10PI-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 AT24C01-10PI-1.8?
For technical support, including AT24C01-10PI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C01-10PI-1.8 requirements.
6.How does Aetrix verify that AT24C01-10PI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C01-10PI-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 AT24C01-10PI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C01-10PI-1.8?
All AT24C01-10PI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C01-10PI-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 AT24C01-10PI-1.8 part is unused and in its original packaging.
Return procedure for AT24C01-10PI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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