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DS2431P

製品説明
仕様・特性

DS2431 1024-Bit 1-Wire EEPROM www.maxim-ic.com GENERAL DESCRIPTION FEATURES ® The DS2431 is a 1024-bit, 1-Wire EEPROM chip organized as four memory pages of 256 bits each. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The DS2431 communicates over the singleconductor 1-Wire bus. The communication follows the standard Dallas Semiconductor 1-Wire protocol. Each device has its own unalterable and unique 64bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop 1-Wire net environment. ! 1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0") Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise IEC 1000-4-2 Level 4 ESD Protection (8kV Contact, 15kV Air) Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C Communicates to Host with a Single Digital Signal at 15.4kbps or 111kbps Using 1-Wire Protocol ! ! ! ! ! ORDERING INFORMATION APPLICATIONS Accessory/PC Board Identification Medical Sensor Calibration Data Storage Analog Sensor Calibration Including IEEEP1451.4 Smart Sensors Ink and Toner Print Cartridge Identification After-Market Management of Consumables TYPICAL OPERATING CIRCUIT PART DS2431 DS2431/T&R DS2431P DS2431P/T&R DS2431X TEMP RANGE -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C -40°C to 85°C PIN-PACKAGE TO-92 TO-92, tape & reel TSOC TSOC, tape & reel CSP, tape & reel PIN CONFIGURATION 1 2 TO-92 RPUP µC 6 5 3 VCC 4 TSOC, Top View I/O TSOC, TO-92 pinout: Pin 1 ------------GND Pin 2 ------------I/O All other pins -NC DS2431 GND 2 1 2 3 1 A Commands, Registers, and Modes are capitalized for clarity. 1 2 3 B A1 = NC A2 = I/O B1 = NC B2 = GND CSP, approx. 68 × 68 mil Top view, bumps not visible 1-Wire is a registered trademark of Dallas Semiconductor Corp. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. 1 of 23 REV: 050704

ブランド

MAXIM

会社名

Maxim Integrated

本社国名

U.S.A

事業概要

アナログおよびミックスドシグナル半導体製品を設計、製造、販売している米国系の株式会社である。 マキシム・インテグレーテッドは、工業、通信、民生、コンピューティングの各市場向けに集積回路を開発しています

供給状況

 
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