{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATF22V10C-10SI","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"ATF22V10C-10SI","canonicalUrl":"https://icboms.com/microchip/ATF22V10C-10SI","factsUrl":"https://icboms.com/api/mcp/products/ATF22V10C-10SI","rawCanonicalId":null},"summary":{"shortDescription":"Microchip ATF22V10C-10SI, 22V10 series, EE PLD, 10 ns speed, 10 macrocells, 5V supply, surface mount, 24-SOIC (0.295\", 7.50mm Width), tube.","salesMarkdown":"## 10 ns propagation delay — glue-logic timing budget The Microchip ATF22V10C-10SI is an electrically erasable PLD (EE PLD) from the 22V10 family, delivering a 10 ns propagation delay from input to combinatorial output. That 10 ns ceiling sets the maximum system clock frequency the part can support in a registered configuration — typically around 83 MHz with zero wait states, though the actual margin depends on the external routing and fan-out. For address decoding, bus arbitration, or state-machine glue logic in a 5V system, the 10 ns speed keeps the timing closure straightforward as long as the upstream and downstream devices have comparable output-enable and setup times. ## 10 macrocells — logic capacity and architecture Ten macrocells give the ATF22V10C-10SI enough fabric for small-to-medium combinatorial and registered logic blocks — think a 4-bit counter with decode, a simple UART baud-rate generator, or a handful of chip-select equations. Each macrocell includes a programmable AND/fixed OR array, a D-type flip-flop, and output polarity control. The 22V10 architecture is well-documented and supported by legacy design tools; the JEDEC fuse map is directly compatible with earlier 22V10 OTP and UV erasable parts. Microchip lists the ATF22V10C-10SI as Obsolete. For BOM lines that still require the exact ATF22V10C-10SI, the only channel is independent distribution — sealed reels and tube lots are sourced per RFQ, with date-code and condition verified before shipment. ## 5V-only operation — supply rail fit The ATF22V10C-10SI is a 5V-only device. It will not tolerate a 3.3V VCC; the input thresholds are TTL-compatible, so a 3.3V logic output can drive the inputs if the 3.3V device's VOH meets the 2.0 V VIH minimum. Outputs swing rail-to-rail (0 V to 5 V), which may overstress a 3.3V-only receiver without a series resistor or level shifter. In a legacy 5V backplane or ISA-bus-style design, the 5V rail is a direct fit; in mixed-voltage boards, budget for translation. ## 24-SOIC package — footprint and rework","metaTitle":"ATF22V10C-10SI EE PLD, 10 ns, 10 Macrocells, 5V, 24-SOIC","metaDescription":"Microchip ATF22V10C-10SI EE PLD, 10 ns propagation delay, 10 macrocells, 5V supply, 24-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["FPGA / CPLD & Programmable Logic"],"specifications":{"Mfr":"Microchip Technology","Speed":"10 ns","Series":"22V10","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"24-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Obsolete","Voltage - Input":"5V","lifecycle_stage":"eol_hot","Programmable Type":"EE PLD","Base Product Number":"ATF22V10C","Number of Macrocells":"10","Supplier Device Package":"24-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5ae1a1706088582335c7a2d9d815b287.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ATF22V10C-10SI/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for ATF22V10C-10SI?","answer":"Microchip has not published an official successor order code for the ATF22V10C-10SI. Pin-compatible alternatives exist in the broader 22V10 ecosystem — for example, the Lattice GAL22V10B-10LP or the Microchip ATF22V10CQZ-10SI (if a 3.3V supply is acceptable) — but each requires verifying the JEDEC fuse map and timing model against the original design. For an exact drop-in replacement, the only path is sourcing the obsolete ATF22V10C-10SI through independent distribution."},{"question":"What is the speed of the ATF22V10C-10SI?","answer":"The ATF22V10C-10SI has a 10 ns propagation delay (tPD) from input to combinatorial output. This is the -10 speed grade in the 22V10 family."},{"question":"Can I use ATF22V10C-10SJ instead of ATF22V10C-10SI?","answer":"The -10SJ suffix typically indicates the same 10 ns speed grade in a different package (often a 28-PLCC). The -10SI is a 24-SOIC. The two are not pin-compatible, so a direct board-level swap requires a layout change. The logic function and JEDEC fuse map may be identical, but the package footprint differs."},{"question":"Can ATF22V10C-10SI be used in a 5V system?","answer":"Yes, the ATF22V10C-10SI is designed for a 5V supply. Input thresholds are TTL-compatible; outputs swing rail-to-rail. It is a direct fit in any 5V logic environment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/ATF22V10C-10SI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/ATF22V10C-10SI 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}}