{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS89C430-ENL+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS89C430-ENL","canonicalUrl":"https://icboms.com/analog-devices/DS89C430-ENL","factsUrl":"https://icboms.com/api/mcp/products/DS89C430-ENL%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices 89C series 8-bit microcontroller, DS89C430-ENL+, 33MHz, 16KB FLASH, 1K x 8 RAM, 32 I/O, 44-TQFP, Tray.","salesMarkdown":"## 33MHz 8051 core with 16KB flash The DS89C430-ENL+ is an 8-bit microcontroller built around the 8051 core, clocked at 33 MHz, with 16 KB of on-chip flash program memory and 1K x 8 of RAM. This puts it in the sweet spot for legacy 8051 designs that need a speed bump without a core architecture change — the flash allows in-system firmware updates, and the 1K RAM is enough for small control loops and UART buffering. The 32 I/O lines are mapped through the 44-TQFP package (10x10 mm body), which keeps the board footprint compact for panel-mount or DIN-rail adapter cards. ## Peripheral set and connectivity On-chip peripherals include a power-fail reset and a watchdog timer (WDT) — the power-fail reset monitors the Vcc rail and holds the core in reset before the supply drops out of spec, critical for brownout immunity in industrial control. Connectivity covers EBI/EMI for external memory or parallel peripherals, plus SIO and a UART/USART for serial links to sensors, displays, or a host controller. The external oscillator type means the system clock is determined by the crystal or ceramic resonator on the board — no internal RC drift to budget, but the layout must keep the oscillator traces short and isolated from switching noise on the I/O bank.","metaTitle":"Analog Devices DS89C430-ENL+ 8-bit MCU, 33MHz, 16KB Flash","metaDescription":"Active-production 8-bit 8051 MCU, 33MHz, 16KB flash, 1Kx8 RAM, 44-TQFP. Industrial temp -40°C to +85°C. Sourced against RFQ.","metaKeywords":null},"attributes":{"series":"89C","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"33MHz","Series":"89C","Package":"Tray","RAM Size":"1K x 8","Core Size":"8-Bit","Peripherals":"Power-Fail Reset, WDT","Connectivity":"EBI/EMI, SIO, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"32","Core Processor":"8051","Package / Case":"44-TQFP","Oscillator Type":"External","lifecycle_stage":"eol_hot","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"44-TQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$22.53","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$22.53000","currency":"USD"},{"qty":10,"price":"$20.78300","currency":"USD"},{"qty":25,"price":"$19.84840","currency":"USD"},{"qty":160,"price":"$17.74694","currency":"USD"},{"qty":320,"price":"$16.92963","currency":"USD"},{"qty":480,"price":"$16.11233","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How can I order DS89C430-ENL+ or check availability?","answer":"The DS89C430-ENL+ is an active part sourced through independent distribution."},{"question":"What is the listed speed of DS89C430-ENL+?","answer":"The DS89C430-ENL+ is rated for a 33 MHz clock speed on the 8051 core."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS89C430-ENL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS89C430-ENL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}