The DS2431+ from Maxim is a 1-Wire 1Kb EEPROM with unique 64-bit ROM ID for identification, calibration data storage, and asset tracking in TO-92 package.<\/p>\n
| \u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n | TO-92<\/td>\n<\/tr>\n<\/table>\n\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\nProduct Overview The DS2431+ from Maxim is a 1-Wire 1Kb EEPROM with unique 64-bit ROM ID for identification, calibration data storage, and asset tracking in TO-92 package. Key Specifications Package TO-92 Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[259],"class_list":["post-5694","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-maxim"],"acf":{"brief_explanation":"1-Wire 1Kb EEPROM, unique 64-bit ID, TO-92","date_code":"","package_case":"TO-92","in_stock":6189,"datasheet":"https:\/\/www.maximintegrated.com\/en\/products\/ibutton\/memory\/DS2431.html","price":"$0.80 @ 1ku","product_introduction":"The DS2431+ from Maxim is a 1-Wire 1Kb EEPROM with unique 64-bit ROM ID for identification, calibration data storage, and asset tracking in TO-92 package.","working_principle":"The DS2431+ is a 1-Wire 1Kbit EEPROM from Maxim Integrated in TO-92-4 (or TSOC-4 for SMD), providing 128 bytes of non-volatile memory accessible through a single data wire plus ground. The 1-Wire protocol uses a single open-drain data line (DQ) with an external 2.2k-ohm pull-up resistor to VCC. Communication is half-duplex and bit-sequential: the master (MCU) initiates all transactions by pulling DQ LOW for a reset pulse (480us minimum). The DS2431 responds with a presence pulse (60-240us LOW). Data is transferred in time slots: a write-1 slot consists of pulling DQ LOW for 1-15us then releasing; a write-0 slot holds DQ LOW for 60us minimum. The DS2431 has four 32-byte memory pages. Each page can be individually write-protected (EPROM mode) or put into EPROM emulation mode where writes can only change 1s to 0s. The 64-bit unique ROM ID (lasered at factory) serves as a serial number and network address, allowing multiple 1-Wire devices on the same bus. The ROM ID contains: 8-bit family code (0x2D), 48-bit serial number, 8-bit CRC. The device includes a 16-bit CRC generator for data integrity. Operating voltage range is 2.8V to 5.5V, derived parasitically from the DQ line during communication. Write endurance is 100,000 cycles. The TO-92 package is suitable for iButton and cable-attached applications.","pin_description":"
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