{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AT93C56B-SSHM-T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"AT93C56B-SSHM-T","canonicalUrl":"https://icboms.com/microchip/AT93C56B-SSHM-T","factsUrl":"https://icboms.com/api/mcp/products/AT93C56B-SSHM-T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AT93C56B-SSHM-T, 2Kbit Serial EEPROM, 3-Wire Interface, 2 MHz Clock, 1.7V-5.5V Supply, 8-SOIC, -40°C to 85°C.","salesMarkdown":"## 2Kbit serial EEPROM for parameter storage The Microchip AT93C56B-SSHM-T is a 2Kbit serial EEPROM organized as 256 x 8 or 128 x 16 bits, accessed through a 3-wire serial interface. It operates from a single 1.7V to 5.5V supply, making it a drop-in fit for 1.8V, 2.5V, 3.3V, or 5V logic domains without an extra regulator. The 2 MHz clock frequency supports read and write cycles up to that rate, with a write cycle time of 5 ms per word or page. This part is suited for storing calibration constants, configuration tables, serial numbers, or small firmware patches in industrial controls, consumer electronics, and telecom modules where non-volatile retention is needed across power cycles. The wide supply tolerance—1.7V minimum—means it will hold data and remain writable even during a brown-out on a 1.8V rail, a useful margin for battery-powered designs. ## Memory organization and write timing The 5 ms write cycle time per word or page is typical for this class of EEPROM; a firmware engineer should budget for the write delay in the main loop or use a status-polling routine if available. At 2 MHz, a 16-bit read takes about 8 µs plus overhead, fast enough for most configuration reads at power-up. ## Package and footprint Housed in an 8-pin SOIC with 3.90 mm body width, the AT93C56B-SSHM-T uses a standard footprint shared by many serial EEPROMs and small logic devices. Surface-mount soldering follows standard MSL procedures—no special bake required unless the moisture barrier bag has been compromised. ## Lifecycle and sourcing ROHS3 compliance is confirmed. For a BOM line requiring a 2Kbit 3-wire serial EEPROM in SOIC-8, the AT93C56B-SSHM-T is a current, low-risk choice.","metaTitle":"Microchip AT93C56B-SSHM-T 2Kbit Serial EEPROM, 2 MHz","metaDescription":"Microchip AT93C56B-SSHM-T 2Kbit EEPROM, 3-Wire Serial, 1.7V-5.5V, SOIC-8, -40°C to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Memory Size":"2Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"2 MHz","lifecycle_stage":"eol_hot","Memory Interface":"3-Wire Serial","Voltage - Supply":"1.7V ~ 5.5V","Memory Organization":"256 x 8, 128 x 16","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.30000","currency":"USD"},{"qty":4000,"price":"$0.30000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/815a1edcae51d19bf596dbf60047c5c2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is AT93C56B-SSHM-T cross-compatible with AT93C46?","answer":"The AT93C56B is a 2Kbit device, while the AT93C46 is 1Kbit. Both use the same 3-wire serial interface and are pin-compatible in the same SOIC-8 footprint, but the AT93C46 has half the storage capacity (organized as 128 x 8 or 64 x 16). A firmware change to the addressing scheme is required if substituting a 93C46 for a 93C56."},{"question":"What is the write cycle time for AT93C56B?","answer":"The write cycle time is 5 ms per word or page, as specified in the datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/AT93C56B-SSHM-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/AT93C56B-SSHM-T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}