{"id":3142,"date":"2024-03-18T17:49:32","date_gmt":"2024-03-18T09:49:32","guid":{"rendered":"http:\/\/demo.lezhan.org\/?post_type=product&p=3142"},"modified":"2026-04-14T17:40:16","modified_gmt":"2026-04-14T09:40:16","slug":"atmel-at24c64-card","status":"publish","type":"product","link":"https:\/\/www.dccochina.com\/es\/shop\/atmel-at24c64-card\/","title":{"rendered":"Atmel AT24C64 smart chip Card"},"content":{"rendered":"

Key Technical Features:<\/span><\/h3>\n

Storage Capacity and Structure<\/strong>
\nThe storage capacity is 64 KB (8 KB), equivalent to 8,192 bytes.
\nInternally, it is divided into 256 pages, with each page consisting of 32 bytes; it supports writing operations at either the byte or page level.
\nData is written in page units, allowing for a maximum of 32 bytes to be written at a time.<\/p>\n

Communication Interface<\/strong>
\nIt utilises the standard I\u00b2C (I2C) two-wire serial communication protocol, requiring only the SCL (clock line) and SDA (data line) to enable bidirectional communication.
\nIt supports multiple speed modes:
\nStandard Mode: 100 kbps
\nFast Mode: 400 kbps
\nSpeeds of up to 1 MHz are achievable in High-Speed \u200b\u200bMode (supported by select models).
\nThe device address format is 1010 + A2A1A0; the programmable address is configured via hardware pins A0 through A2, allowing up to 8 devices to share the same I2C bus.<\/p>\n

Electrical and Reliability Parameters<\/strong>
\nWide Operating Voltage Range: Supports 1.8V to 5.5V, accommodating low-power applications and various power supply systems.
\nHigh Endurance: Supports 1 million erase\/write cycles; data retention lasts up to 100 years, offering exceptional long-term stability.
\nWrite Protection Function: Features a dedicated WP (Write Protect) pin; connecting this pin to VCC enables write protection, preventing accidental writes or unauthorised data modification.
\nSelf-Timed Write Cycle: The maximum write duration is approximately 10 ms; during this period, the chip enters a “busy” state and cannot respond to new commands.<\/p>\n

Packaging and Physical Characteristics<\/strong>
\nCommon package types include 8-pin SOIC, PDIP, and others, suitable for both SMT surface mounting and through-hole installation.
\nSmart cards typically take the form of a standard size\u201485.5 mm \u00d7 54 mm \u00d7 0.84 mm\u2014in compliance with the ISO\/IEC 7816 standard.<\/p>\n

Security Level<\/strong>
\nClassified as a non-encrypted storage card, it lacks built-in security logic or a microprocessor and supports only basic read and write operations.
\nIt offers a low level of security and is suitable for applications where data confidentiality requirements are not stringent\u2014such as general data logging, configuration parameter storage, and similar uses.<\/p>","protected":false},"excerpt":{"rendered":"

The Atmel AT24C64 is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip manufactured by Atmel Corporation. It is widely utilized in smart cards, embedded systems, and various other applications requiring non-volatile data storage. As a model within the AT24C memory series, it features a capacity of 64 Kb (equivalent to 8 KB) and is primarily employed for storing data that does not require high-level security\u2014such as in campus cards, telephone cards, and driving training timekeeping systems.<\/p>","protected":false},"featured_media":2197,"template":"","meta":[],"product_cat":[98],"product_tag":[67,68],"class_list":["post-3142","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-contact-card","product_tag-atmel-at24c64-card","product_tag-over-view"],"yoast_head":"\nAtmel AT24C64 smart chip Card - Dcco<\/title>\n<meta name=\"description\" content=\"Atmel AT24C64 Card provides 32,768\/65,536 bits of serial electrically erasable programmable read-only memory, suitable for use in meter cards, etc.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dccochina.com\/es\/shop\/atmel-at24c64-card\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Atmel AT24C64 smart chip Card - 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