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AT24CM01-SHD-B


1Mbit I2C Serial EEPROM, 1MHz, 2.5-5.5V, Industrial, 8-SOIC

5000

有效库存
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制造商零件:

AT24CM01-SHD-B

包装:

8-SOIC (5.30 x 5.30 mm)

品牌:
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说明

产品概览

The AT24CM01-SHD-B is a Microchip 1-Mbit (128 Kbyte) I2C serial EEPROM organized as 128K x 8. It operates from 1.7 V to 5.5 V with clock frequencies up to 1 MHz, and features 256-byte page write, hardware write-protect pin, 1 million erase/write cycle endurance, and 100-year data retention. The SHD-B suffix indicates the 8-lead SOIC (N) package rated for -40°C to +85°C.

主要规格

Density 1 Mbit (128 KB)
Organization 128K x 8
电源电压 1.7 V to 5.5 V
Max Clock Frequency 1 MHz
Page Size 256 bytes
Endurance 1,000,000 cycles

特点

  • 1 Mbit density in compact 8-lead SOIC
  • 1.7 V to 5.5 V operating range
  • Up to 1 MHz clock (I2C fast-mode plus)
  • 256-byte page write mode
  • Hardware write-protect pin (WP)
  • 1 million erase/write cycle endurance
  • 100-year data retention
  • Self-timed write cycle (5 ms max)

应用

  • Consumer electronics configuration storage
  • Industrial parameter and calibration storage
  • Network MAC address storage
  • Embedded system boot configuration

The Microchip AT24CM01-SHD-B is a 1Mbit (128K x 8) I2C serial EEPROM optimized for reliable nonvolatile storage in consumer and industrial applications. The device supports both 400 kHz and 1 MHz I2C clock rates, enabling fast data access in time-critical systems. The 256-byte page size and self-timed write cycle (5 ms max) allow efficient bulk data updates, while the hardware write-protect pin prevents accidental data corruption. With an endurance of 1,000,000 erase/write cycles and data retention exceeding 40 years, the AT24CM01 provides long-term data integrity for critical configuration storage, calibration tables, and event logging. The cascadable 3-bit address bus supports up to four devices on a single I2C bus, expanding total storage to 4 Mbit without additional address decoding logic. The wide 2.5V to 5.5V supply range supports both 3.3V and 5V system designs, and the 6 uA standby current minimizes battery drain in always-on applications.

The AT24CM01 uses a standard I2C (2-wire) serial interface consisting of SDA (data) and SCL (clock) lines. Communication follows the I2C protocol: the master initiates a start condition, sends the 7-bit device address (1010+A2+A1+A0) followed by a read/write bit, then the 17-bit word address (two bytes for the 128K address space). For write operations, up to 256 bytes can be loaded into the page buffer and written simultaneously during the self-timed 5 ms write cycle. For read operations, the current address read, random read, and sequential read modes are supported. The hardware write-protect (WP) pin, when tied to VCC, blocks write operations to the entire array, protecting critical data from accidental modification. The internal charge pump generates the high voltage needed for EEPROM programming, eliminating the need for external programming voltage.

针脚 Mnemonic 说明
1-3 A0-A2 Address inputs for device cascading
4 接地 地面
5 SDA Serial data I/O (open-drain)
6 SCL Serial clock input
7 WP Write-protect input (active high)
8 VCC Power supply (2.5-5.5V)
  • Industrial PLC configuration storage with 40-year retention and 1M-cycle endurance
  • Medical device calibration data logging across -40C to +85C operating range
  • Automotive ECU parameter storage with hardware write-protect for safety-critical data
  • IoT sensor node event logging with 6uA standby current on battery power
模型 制造商 主要区别
AT24CM02 微型芯片 2Mbit density, same footprint
24LC1026 微型芯片 1Mbit, 2.5V min, 400kHz only
M24M01 意法半导体 1Mbit, 400kHz, TSSOP-8 option
BR24G1M 罗姆 1Mbit, 1.6V min, 1.7MHz support
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质量保证

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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