{"id":3211,"date":"2026-05-31T03:45:11","date_gmt":"2026-05-31T03:45:11","guid":{"rendered":"https:\/\/materialparts.com\/at24c512c-sshd-t\/"},"modified":"2026-06-06T03:29:03","modified_gmt":"2026-06-06T03:29:03","slug":"at24c512c-sshd-t","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/at24c512c-sshd-t\/","title":{"rendered":"AT24C512C-SSHD-T"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The AT24C512C-SSHD-T from Microchip Technology is a 512-Kbit (64K x 8) I2C-compatible serial EEPROM in an 8-pin SOIC package. It supports 1 MHz clock frequency, 128-byte page write mode, and features 1 million write cycle endurance with 100-year data retention. The device operates from 2.5 V to 5.5 V over the industrial temperature range.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Memory Density<\/td>\n512 Kbit (64K x 8)<\/td>\n<\/tr>\n
Interface<\/td>\nI2C (2-wire serial)<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n1 MHz (2.5 V to 5.5 V)<\/td>\n<\/tr>\n
Page Size<\/td>\n128 bytes<\/td>\n<\/tr>\n
Write Cycle Time<\/td>\n5 ms max (self-timed)<\/td>\n<\/tr>\n
Write Endurance<\/td>\n1,000,000 cycles<\/td>\n<\/tr>\n
Data Retention<\/td>\n100 years<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.5 V to 5.5 V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to 85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 512 Kbit organized as 65,536 x 8 bytes<\/li>\n
  • Standard and Fast-mode Plus I2C (1 MHz)<\/li>\n
  • 128-byte page write with partial page write support<\/li>\n
  • Hardware write-protect pin for full array protection<\/li>\n
  • Schmitt trigger filtered inputs for noise suppression<\/li>\n
  • Cascadable: up to 8 devices on a single I2C bus<\/li>\n
  • Self-timed write cycle (5 ms max)<\/li>\n
  • Ultra-low standby current: 6 uA max<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial and consumer nonvolatile parameter storage<\/li>\n
    • Calibration data and configuration tables<\/li>\n
    • System identification and serial number storage<\/li>\n
    • Data logging in battery-powered devices<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AT24C512C-SSHD-T from Microchip Technology is a 512-Kbit (64K x 8) I2C-compatible serial EEPROM in an 8-pin SOIC package. It supports 1 MHz clock frequency, 128-byte page write mode, and features 1 million write cycle endurance with 100-year data retention. The device operates from 2.5 V to 5.5 V over the industrial temperature […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,29],"tags":[],"chip_brand":[134],"class_list":["post-3211","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-microchip"],"acf":{"brief_explanation":"512-Kbit I2C EEPROM, 1 MHz, 128B page, 1M cycles, 100yr retention, SOIC-8","date_code":"","package_case":"SOIC-8 (3.91 x 4.90 mm)","in_stock":8600,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/20006161C.pdf","price":"$0.68 @ 1ku","product_introduction":"The AT24C512C-SSHD-T from Microchip Technology is a 512-Kbit serial EEPROM that provides 65,536 bytes of nonvolatile storage using a standard I2C two-wire interface. The device supports Fast-mode Plus I2C at up to 1 MHz clock frequency when operating from 2.5 V to 5.5 V, enabling rapid data transfers in high-performance systems. The 128-byte page write mode allows efficient bulk programming, with partial page writes supported for flexible data storage. Schmitt trigger inputs with noise filtering ensure reliable communication in electrically noisy industrial environments. The hardware write-protect (WP) pin provides a physical mechanism to protect the entire memory array from accidental writes during system operation. With an endurance specification of 1 million write cycles and 100-year data retention, the AT24C512C-SSHD-T provides exceptional reliability for critical parameter and calibration data storage. The cascadable address scheme allows up to eight devices to share a single I2C bus, providing up to 4 Mbit total nonvolatile storage.","working_principle":"The AT24C512C-SSHD-T operates through four functional subsystems: (1) The I2C interface handles all communication with the host controller via SDA and SCL lines. The device responds to the standard AT24C EEPROM address format: a 1010 device type identifier followed by three address bits (A2, A1, A0) that select one of up to eight devices on the bus, and a read\/write bit. Schmitt trigger inputs with filtering suppress noise on the bus lines. (2) The address decoder receives the 16-bit memory address sent after the device address byte and selects the corresponding location in the 65,536-byte array. The two-byte address supports the full 512 Kbit density. (3) The memory array consists of 512 pages of 128 bytes each. During a page write operation, up to 128 bytes are loaded into an internal page buffer and then programmed to the nonvolatile array in a self-timed 5 ms cycle. Partial page writes are supported, and bytes within the same page can be written individually. (4) The write-protect logic monitors the WP pin. When WP is tied high, all write operations to the entire array are blocked, providing hardware-level data protection against accidental corruption.","pin_description":"
      Pin No.<\/td>Pin Name<\/td>Function<\/td><\/tr>
      1<\/td>A0<\/td>Address input 0; sets device I2C slave address bit<\/td><\/tr>
      2<\/td>A1<\/td>Address input 1; sets device I2C slave address bit<\/td><\/tr>
      3<\/td>A2<\/td>Address input 2; sets device I2C slave address bit<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>SDA<\/td>Serial data (bidirectional, open-drain)<\/td><\/tr>
      6<\/td>SCL<\/td>Serial clock input<\/td><\/tr>
      7<\/td>WP<\/td>Write-protect input; tie high to protect entire array<\/td><\/tr>
      8<\/td>VCC<\/td>Supply voltage (2.5 V to 5.5 V)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial control systems storing calibration coefficients and configuration parameters that must survive power cycles with 100-year data retention and 1M write cycle endurance<\/li>
      • Multi-sensor data logging applications where 64 KB of nonvolatile storage accommodates extensive event records and the 1 MHz I2C bus enables rapid data retrieval<\/li>
      • System identification modules storing serial numbers, manufacturing data, and device certificates with hardware write-protect preventing unauthorized modification<\/li>
      • Consumer electronics with cascaded I2C buses where multiple AT24C512C devices provide scalable nonvolatile storage up to 4 Mbit on a single bus<\/li><\/ul>","alternative_models":"
        Model<\/td>Brand<\/td>Density<\/td>Max Freq<\/td>Page Size<\/td><\/tr>
        AT24C256C-SSHL-T<\/td>Microchip<\/td>256 Kbit<\/td>1 MHz<\/td>64 B<\/td><\/tr>
        AT24CM01-SSHL-T<\/td>Microchip<\/td>1 Mbit<\/td>1 MHz<\/td>256 B<\/td><\/tr>
        24LC512-I\/SN<\/td>Microchip<\/td>512 Kbit<\/td>400 kHz<\/td>128 B<\/td><\/tr>
        BR24G512FJ-3AGE2<\/td>Rohm<\/td>512 Kbit<\/td>1 MHz<\/td>128 B<\/td><\/tr>
        M24M01-RMN6TP<\/td>ST<\/td>1 Mbit<\/td>1 MHz<\/td>256 B<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=3211"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3211\/revisions"}],"predecessor-version":[{"id":3292,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3211\/revisions\/3292"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3211"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}