{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS80C320-QCG+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS80C320-QCGTR","canonicalUrl":"https://icboms.com/analog-devices/DS80C320-QCGTR","factsUrl":"https://icboms.com/api/mcp/products/DS80C320-QCG%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices 80C series 8-bit 8051 microcontroller, DS80C320-QCG+T&R, 25 MHz, 256 x 8 RAM, ROMless, 44-PLCC (J-Lead), 4.5-5.5 V, 0-70°C, ROHS3.","salesMarkdown":"## 25 MHz 8051 core, ROMless — external code store required The DS80C320-QCG+T&R is an 8-bit microcontroller built around the 8051 core, clocked at 25 MHz. It executes standard 8051 instructions at a higher throughput per cycle than the original architecture, but the part is ROMless — no on-chip program memory. All code must reside in external EPROM, Flash, or OTP accessed through the external bus interface (EBI/EMI). On-chip RAM is 256 x 8 bytes, matching the classic 8051 register file and scratchpad layout. The 32 I/O lines are shared with the external bus and serial ports; a design using the full EBI for code fetch will consume most of Port 0 and Port 2, leaving fewer pins for general-purpose I/O. ## Supply rail, temperature grade, and package The commercial temperature range is 0°C to 70°C, suitable for indoor, non-condensing environments. No industrial or automotive grade is listed. Packaged in a 44-lead PLCC with J-leads (44-LCC), surface-mount. The supplier device package is 44-PLCC (16.59 x 16.59 mm). The J-lead footprint is common in through-hole-solder reflow and socketed applications; the PLCC socket is a standard off-the-shelf item. ## On-chip peripherals: watchdog and power-fail reset The integrated watchdog timer (WDT) and power-fail reset provide basic supervisory coverage. The WDT can reset the core if firmware stalls; the power-fail reset generates an early warning interrupt before the supply drops below the operating threshold, allowing the firmware to save critical state to external non-volatile memory. Serial connectivity includes a UART/USART and SIO, plus the external bus for memory and peripheral expansion. The oscillator is external — a crystal or ceramic resonator must be provided; no internal RC oscillator is present. Sourced through independent distribution channels.","metaTitle":"DS80C320-QCG+T&R 8051 MCU, 25 MHz, 44-PLCC, Active","metaDescription":"DS80C320-QCG+T&R from Analog Devices: 8-bit 8051 MCU, 25 MHz, 256 x 8 RAM, ROMless, 44-PLCC, 4.5-5.5 V, 0-70°C. Active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"80C","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"25MHz","Series":"80C","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"256 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-LCC (J-Lead)","Oscillator Type":"External","lifecycle_stage":"eol_hot","Program Memory Type":"ROMless","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"44-PLCC (16.59x16.59)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$26.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$26.20000","currency":"USD"},{"qty":10,"price":"$24.16200","currency":"USD"},{"qty":25,"price":"$23.07640","currency":"USD"},{"qty":100,"price":"$20.63310","currency":"USD"},{"qty":250,"price":"$19.68288","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy DS80C320-QCG+T&R and how is it quoted?","answer":"The DS80C320-QCG+T&R is sourced through independent distribution. Submit an RFQ for a firm quote."},{"question":"What is the closest pin-compatible alternative to DS80C320-QCG+T&R?","answer":"The 44-PLCC footprint is standard, but a direct replacement would require verification of the pinout and electrical characteristics against the original manufacturer's documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS80C320-QCGTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS80C320-QCGTR 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}}