A42MX36-PQG208IX39 - 54K Gate 5V FPGA PQFP-208 | Microchip
MPN: A42MX36-PQG208IX39 ✓ فعالA42MX36-PQG208IX39 نمای کلی
An FPGA (field-programmable gate array) is a semiconductor device containing programmable logic blocks and interconnects that the designer configures after manufacturing. Within the programmable logic hierarchy, the MX family sits as a one-time-programmable, antifuse-based alternative to ASICs and legacy PLD integration, allowing designers to consolidate multiple legacy programmable devices into a single low-cost, high-volume chip.
Key features include the 54K-gate capacity with dual-port SRAM modules optimized for FIFO and LIFO buffering, selectable PCI output drives enabling 100% compliance with PCI specification version 2.1, and a low-power mode that disables all inputs and outputs to reduce supply current below 500 uA. The IX39 ordering suffix denotes the industrial temperature screening, making the device suitable for extended-temperature operation.
Architecturally, the MX family uses a 0.45 um CMOS process with a sea-of-modules fabric. The A42MX36, as the largest family member, contains embedded dual-port SRAM blocks and wide-decode modules suited to high-speed datapath functions such as FIFOs, LIFOs, and scratchpad memory, designed using the ACTgen Macro Builder in Microsemi designer software.
Typical applications include legacy PLD consolidation, industrial control logic, glueless bus interfaces with PCI compliance, military and aerospace prototyping via the pin-compatible ceramic CQ208 variant, and high-volume embedded systems requiring long product lifecycle support.
A key design consideration is the 5.0 V core architecture: while it simplifies legacy 5 V system integration, new low-voltage designs should evaluate level shifting. The PQ208 plastic package is pin-compatible with the CQ208 ceramic package, easing prototype-to-production conversion.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, providing consolidated sourcing and engineering data as of 2026-08-30.
جایگزین‌های drop-in برای A42MX36-PQG208IX39 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای A42MX36-PQG208IX39 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, RoHS Status, Family, Logic Cells, PCI Compliance.
A42MX36-PQG208I
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX36-2PQG208I
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX36-PQG208A
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX36-1PQG208
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX36-3PQG208I
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX36-FPQG208
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX36-PQG208IX39 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Logic Family | MX (Actel 42MX) |
| Equivalent Gates | 54000 |
| Configurable Logic Blocks (CLBs) | 1184 |
| Logic Cells | 2438 |
| حداکثر فرکانس کلاک | 72 MHz |
| Combinatorial Delay per CLB | 2.7 ns |
| Process Technology | 0.45 um CMOS |
| Core Supply Voltage | 5 V |
| User I/O | 176 |
| Programmable Connections | 2560 |
| Embedded Memory | Dual-port SRAM blocks (FIFO/LIFO optimized) |
| PCI Compliance | PCI specification version 2.1 (selectable output drives) |
| جریان حالت کم‌مصرف | Below 500 uA |
| بسته‌بندی | 208-pin PQFP (PQFP208) |
| نوع نصب | Surface Mount |
| Temperature Grade | Industrial (IX39 suffix) |
| Programming Technology | One-time programmable antifuse |
راهنمای پیکربندی پین A42MX36-PQG208IX39 208-pin pqfp (pqfp208)
پیکربندی پین برای A42MX36-PQG208IX39 (پکیج 208-pin pqfp (pqfp208)). این IC دیجیتال شامل GPIO، رابط‌های ارتباطی (UART، SPI، I2C) و پین‌های تغذیه است. برای عملکردهای جایگزین پین و گزینه‌های پیکربندی به دیتاشیت سازنده مراجعه کنید. ضروری برای طراحی سیستم‌های نهفته و چیدمان PCB.
داده پین‌آوت تفصیلی موجود نیست برای A42MX36-PQG208IX39.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
A42MX36-PQG208IX39 مناسب است برای 6 کاربردs: Legacy PLD and ASIC Consolidation, PCI Bus Interface Logic, Industrial Control and Automation, Military and Aerospace Prototyping, High-Speed Data Buffering and FIFO Applications, Obsolescence Management and Lifetime-Buy Designs.
Legacy PLD and ASIC Consolidation
The A42MX36-PQG208IX39 is purpose-built for consolidating multiple legacy PLDs, GALs, and small ASICs into a single device. Its 54,000-gate capacity and 1184 CLBs absorb the combined logic of several 22V10-class devices, while the 5.0 V architecture natively interfaces with older 5 V buses and peripherals that modern 3.3 V FPGAs cannot drive directly. Because the MX family is one-time programmable (antifuse), the consolidated design gains security and latch-up immunity without configuration-loading hardware. In a typical consolidation, the 176 user I/O replace multiple glue-logic packages, cutting board area and BOM count while Microchip's long-term manufacturing commitment protects the supply for the remaining product lifecycle.
پیشنهادی
PCI Bus Interface Logic
A42MX24 and A42MX36 devices offer selectable PCI output drives enabling 100% compliance with version 2.1 of the PCI specification, per the 40MX/42MX families datasheet. The A42MX36-PQG208IX39's 5 V tolerant I/O and 72 MHz maximum toggle frequency cover the 33 MHz PCI clock domain with ample timing margin; the 2.7 ns CLB combinatorial delay supports address/data steering and parity logic within PCI setup budgets. Designers typically implement the PCI state machine and target/initiator FIFOs using the embedded dual-port SRAM blocks, buffering bus transfers without external FIFO ICs. This makes the device a glueless 5 V PCI bridge solution for industrial backplane and legacy server platforms.
پیشنهادی
Industrial Control and Automation
The industrial IX39 temperature screening makes the A42MX36-PQG208IX39 appropriate for factory automation controllers, motor-drive sequencing logic, and machine-state machines exposed to wide ambient ranges. The 54K-gate fabric integrates interlock logic, encoder interfaces, and communication glue logic that previously occupied multiple SSI/MSI devices. Its low-power mode reduces supply current below 500 uA by disabling all I/O, which suits standby paths in energy-conscious installations. The surface-mount 208-pin PQFP withstands typical industrial reflow assembly, and the antifuse fabric's immunity to configuration upset (no external boot flash) increases uptime in electrically noisy factory environments where SRAM-FPGAs would require scrubbing circuitry.
پیشنهادی
Military and Aerospace Prototyping
The MX family is fully tested over automotive and military temperature ranges, and the largest member, A42MX36, is available in CQ208 and CQ256 ceramic packages screened to MIL-STD-883 levels. Critically, the datasheet confirms CQ208 and PQ208 devices are pin-compatible, so engineers can prototype flight hardware on the plastic A42MX36-PQG208IX39 and convert to the ceramic MIL-screened device without PCB changes. The 5 V I/O directly drives legacy mil-spec 5 V buses, and the antifuse one-time programming provides design-security and radiation-tolerant-friendly single-event-upset behavior compared to SRAM fabrics, which is why Actel-derived MX devices persist in defense obsolescence-management programs.
پیشنهادی
High-Speed Data Buffering and FIFO Applications
The A42MX36's embedded dual-port SRAM blocks provide an optimal solution for high-speed buffered applications requiring FIFO and LIFO queues, according to the Microsemi 42MX datasheet (DS2136). Using the ACTgen Macro Builder in Microsemi designer software, engineers instantiate FIFO/LIFO macros directly from the fabric, moving the 72 MHz datapath buffering on-chip. This eliminates external FIFO memories, reduces latency, and frees the 176 I/O for data-width expansion. Typical systems include image-line buffers, communication packet staging, and ADC sample streaming where the 2.7 ns CLB delay supports tight datapath pipelines between the SRAM blocks and user logic.
پیشنهادی
Obsolescence Management and Lifetime-Buy Designs
Programs maintaining legacy boards with discontinued Actel or early-Microsemi devices use the A42MX36-PQG208IX39 as a last-time-buy and lifetime-purchase target because Microchip actively sustains MX manufacturing, even qualifying an alternate assembly site per product change notification DSNO-28BNDI820. Designers re-map retired PLD netlists into the 54K-gate fabric using Libero/Designer software, and the 208-pin PQFP footprint matches many legacy Actel packages. The family's active status, stable 0.45 um process, and continued datasheet support (40MX/42MX families datasheet v16) make it a low-risk landing zone that extends program life by a decade or more without redesign.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای A42MX36-PQG208IX39 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | A42MX36-PQG208I | A42MX36-2PQG208I | A42MX36-PQG208A | A42MX36-FPQG208 |
|---|---|---|---|---|---|
| Package | 208-pin PQFP (PQFP208) | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 54000 | 54000 | 54000 | 54000 | 54000 |
| CLBs / Logic Cells | 1184 / 2438 | 1184 / 2438 | 1184 / 2438 | 1184 / 2438 | 1184 / 2438 |
| Max Clock Frequency | 72 MHz | 72 MHz | Higher (-2 speed grade) | 72 MHz | 44 MHz |
| Combinatorial Delay (CLB) | 2.7 ns | 2.7 ns | Lower (-2 speed grade) | 2.7 ns | 3.8 ns |
| Temperature Screening | Industrial (IX39) | Industrial (I) | Industrial (I) | Automotive (A) | Standard |
| User I / Programmable Connections | 176 / 2560 | 176 / 2560 | 176 / 2560 | 176 / 2560 | 176 / 2560 |
تفاوت‌های کلیدی
- Higher speed grade than the F variant (در مقابلA42MX36-FPQG208)
- Native 5.0 V I/O architecture (در مقابلA42MX36-2PQG208I (equivalent) but decisive vs modern 3.3 V FPGAs)
- Industrial IX39 screening on the largest family member (در مقابلA42MX36-PQG208A)
- Pin-compatible ceramic migration path (در مقابلA42MX36-1PQG208)
یادداشت‌های طراحی
The MX family operates from a 5.0 V supply core with 5 V tolerant I/O. Budget supply current based on toggle activity and I/O loading; in standby, enable the low-power mode which disables all inputs and outputs and reduces current below 500 uA per the datasheet. Provide solid 0.1 uF decoupling per power pin group plus bulk 10 uF at the board entry. Since the antifuse fabric draws no configuration current at power-up (unlike SRAM FPGAs), inrush is dominated by I/O charging, simplifying supply sequencing.
At 72 MHz with 5 V CMOS output drives, keep trace lengths on fast output clocks and PCI-class signals under a few inches or add small series resistors (22-33 ohm) to control ringing. Enable the selectable PCI output drives only for PCI bus pins; full-strength drives on non-PCI nets increase ground bounce in the PQFP. Use the wide ground connections of the 208-pin package and verify return paths, since 5 V swings into typical 10-15 pF loads generate significantly higher di/dt than 3.3 V designs.
MX devices are one-time programmable - there is no field reconfiguration. Lock your design and verify timing closure in Microsemi Designer software before submitting to programming, and keep a golden programming file archived. When substituting across speed grades, remember the FPQG208 variant is 44 MHz / 3.8 ns versus 72 MHz / 2.7 ns for the PQG208IX39; blindly swapping suffixes can break timing. Finally, verify the IX39 screening suffix is actually required - if standard industrial I grade suffices, the more widely stocked A42MX36-PQG208I shortens lead times.
The PQFP-208 uses a 0.5 mm lead pitch; specify a solder-mask-defined footprint per IPC guidelines and inspect with 5-10X magnification for lead coplanarity after reflow. The CQ208 ceramic package is pin-compatible with PQ208, so design the footprint once for both. Avoid routing under the package center on outer layers if you later migrate to ceramic with a cavity lid; provide at least two rows of test vias around the perimeter for bed-of-nails production testing of the 176 user I/O nets.
اطلاعات انطباق
The related A42MX36-PQG208I is listed by Mouser as LEAD FREE; RoHS/REACH status of the IX39 suffix was not stated in the provided data and requires confirmation from Microchip product documentation.
