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AT21CS01-STUM10-T， MICROCHIP，封装SOT-23。百分百原装，价格优惠，支持实单有量，可订货，先到先得！！！更多信息和型号可加QQ：3005150307！！！
Features
Low voltage operation
̶ Device is self-powered via 1.7V to 3.6V pull-up voltage on the SI/O line
Internally organized as 128 words of 8 bits each (1-Kbit)
Single-Wire serial interface with I2
C protocol structure
̶ Device communication is achieved through a single I/O pin
Standard Speed and High Speed Mode options
̶ 15.4kbps maximum bit rate in Standard Speed Mode
̶ 125kbps maximum bit rate in High Speed Mode
8-byte Page Write or single Byte Writes allowed
Discovery Response feature for quick detection of devices on the bus
ROM Zone support
̶ Device is segmented into four 256-bit zones, each of which can be
permanently made read-only (ROM)
256-bit Security Register
̶ Lower 8 bytes contains a factory programmed, read-only,
64-bit Serial Number that is unique to all Atmel Single-Wire products
̶ Upper 16 bytes are user-programmable and permanently lockable
Self-timed write cycle (5ms max)
Manufacturer Identification support
̶ Device responds with unique value for Atmel as well as density and revision
information
High reliability
̶ Endurance: 1,000,000 write cycles
̶ Data retention: 100 years
̶ IEC 61000-4-2 Level 4 ESD Compliant (±8kV Contact, ±15kV Air Discharge)
Green (Lead-free/Halide-free/RoHS Compliant) package options
̶ 8-lead SOIC, 3-lead SOT23, and 4-ball Thin WLCSP
Die sale options in wafer form and tape and reel
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