A42MX16-PQG208I - 24K Gate FPGA, 140 I/O, 208-PQFP | Microchip
MPN： A42MX16-PQG208I ✓ 啟用中A42MX16-PQG208I 概覽
A field-programmable gate array (FPGA) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that designers configure in the field via hardware description languages such as VHDL or Verilog. Within the power-management hierarchy of system logic, FPGAs sit above fixed-function ASICs in flexibility and below CPLDs in simplicity for small designs, serving as a reliable single-chip ASIC alternative for glue logic, bus interfacing, and control-plane integration.
Key features of the A42MX16 include a dual 3.3 V/5 V supply architecture that eases integration into legacy 5 V systems, 608 configurable logic cells organized in the Actel MX combinatorial-and-sequential module structure, and 140 bidirectional user I/O pins on the 208-pin body. The MX family is a proven high-volume platform targeted at consolidating legacy PLDs and small ASICs into one low-cost, antifuse-programmable device.
The 42MX architecture delivers dependable deterministic routing with no configuration-memory volatility, and family documentation notes full compliance with the PCI Local Bus Specification (version 2.1) together with up to 200 MHz on-chip operation and 6.1 ns clock-to-output performance in family members; higher-density 42MX24/42MX36 devices add IEEE 1149.1 (JTAG) boundary scan testing and fast wide-decode modules.
Typical applications include industrial automation controllers, telecommunications line cards, legacy 5 V system upgrades, and embedded control systems where a proven single-chip ASIC replacement reduces bill-of-material cost and obsolescence risk.
When designing with this device, verify power sequencing of the 3.3 V core and 5 V I/O domains, and confirm that the industrial temperature variant (suffix I) matches your environmental requirements, since commercial and automotive grade variants of the same die exist.
This page synthesizes distributor sourcing data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 A42MX16-PQG208I — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： A42MX16-PQG208I （相同外形與佔位） — 差異在於 Package, Logic Cells, System Gates, Operating Temperature, RoHS Status.
A42MX16-PQG208A
✅ 直接替換聯絡詢價
查看資料表 →A42MX24-1PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A42MX24-1PQG208M
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-2PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-3PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-PQG208A
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-PQG208I 最大額定值與電氣特性
| Family | 42MX (MX FPGA) |
| System Gates | 24,000 gates |
| Logic Cells | 608 cells |
| User I/O | 140 I/O |
| Speed Grade Performance | 103 MHz / 172 MHz |
| Process Technology | 0.45 um CMOS |
| 供應電壓 | 3.3 V / 5 V |
| 封裝 | 208-Pin PQFP (PQG208 / 208-BFQFP) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C (Industrial, suffix I) |
| Programming Technology | Antifuse (non-volatile) |
| PCI Compliance | PCI Local Bus Specification version 2.1 (42MX family) |
| Clock-to-Output Performance | 6.1 ns (42MX family) |
| On-Chip Operation | Up to 200 MHz (42MX family) |
| RoHS 狀態 | unknown |
| Packaging | Tray |
A42MX16-PQG208I 208-pin pqfp (pqg208 / 208-bfqfp) 腳位配置指南
A42MX16-PQG208I（208-pin pqfp (pqg208 / 208-bfqfp) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： A42MX16-PQG208I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A42MX16-PQG208I 適用於 6 應用s: Industrial Automation and Control, Legacy 5 V System Consolidation, Telecommunications Line Cards, Embedded Control Systems, Single-Chip ASIC Alternative / NRE Avoidance, Security and Surveillance Equipment.
Industrial Automation and Control
The A42MX16-PQG208I fits industrial automation controllers where deterministic, non-volatile logic must survive power interruptions and harsh temperatures. Its -40C to +85C industrial rating and antifuse configuration mean no configuration flash to corrupt and no configuration device to source, a common failure point in SRAM FPGAs on factory floors. With 24,000 system gates, 608 logic cells, and 140 user I/O in a 208-pin PQFP, it absorbs glue logic, sensor interfaces, and sequencing previously spread across multiple PLDs. Placed on a 3.3 V/5 V dual-rail board, it directly bridges legacy 5 V TTL peripherals with modern 3.3 V logic, eliminating level-shifters and reducing BOM cost in brownfield machine retrofits.
推薦
Legacy 5 V System Consolidation
The dual 3.3 V/5 V supply architecture makes the A42MX16-PQG208I an ideal consolidation vehicle for legacy 5 V backplane systems still running TTL-compatible peripherals. According to Microchip's MX family positioning, MX is an ideal platform for integrating legacy PLDs into a single, low-cost device in high-volume production. Designers replace banks of 22V10 GALs, PALs, and SSI/MSI glue chips with one 24,000-gate antifuse device, gaining reliability and shrinking board area without redesigning the 5 V environment. The 140 user I/O on the 208-pin PQFP provide the pin budget those legacy devices collectively consumed, and the non-volatile antifuse fabric powers up instantly with no configuration load time.
推薦
Telecommunications Line Cards
Telecom line cards benefit from the A42MX16-PQG208I's deterministic routing and single-chip ASIC-alternative economics. Distributor references (Baidu B2B, FPGAkey) identify telecommunications as a primary deployment domain for this part, where it implements framing logic, backplane interface glue, and supervisory state machines. The 42MX family's PCI Local Bus Specification version 2.1 compliance enables direct host-bus interfacing, and family performance up to 200 MHz on-chip operation with 6.1 ns clock-to-output supports line-card timing budgets. The industrial temperature range covers central-office environments, and the antifuse fabric introduces no configuration-read latency at card power-up, critical for hot-swap slot architectures.
推薦
Embedded Control Systems
In embedded control systems, the A42MX16-PQG208I serves as a configurable co-processor beside a microcontroller, offloading time-critical state machines, PWM generation, and parallel bus decoding. The 608-cell MX fabric implements combinatorial and sequential modules with predictable timing, and the dual-supply design lets it sit between a 5 V sensor domain and a 3.3 V MCU domain as a protocol bridge. With 140 user I/O, one device can terminate multiple parallel peripherals simultaneously. Recommended companion MCUs such as the MSP430FR5994 provide supervisory intelligence while the FPGA guarantees hard-real-time response that software cannot, and the industrial -40C to +85C rating suits unconditioned enclosures.
推薦
Single-Chip ASIC Alternative / NRE Avoidance
Microchip positions the MX family explicitly as a reliable, single-chip ASIC alternative for high-volume products where ASIC NRE and lead time are unacceptable. The A42MX16-PQG208I delivers 24,000 usable system gates of fixed, verified fabric - designers avoid mask-set costs, spin iterations, and minimum-order exposure while retaining deterministic timing and instant-on antifuse startup that ASIC-like products require. For volumes where a 0.45 um 24K design would justify an ASIC economically, the MX device removes schedule risk instead. The 208-pin PQFP is a mature, low-cost assembly package compatible with standard surface-mount lines, further reducing total deployed cost versus custom packaged silicon.
推薦
Security and Surveillance Equipment
Security and surveillance hardware uses the A42MX16-PQG208I for camera control glue logic, sensor timing generation, and alarm-state machines where instant-on operation matters. The antifuse configuration means the device is functional within nanoseconds of power application - no configuration image to load and no window during which a surveillance node is blind. The 140 user I/O interface CCD/CIS sensor timing, pan-tilt actuators, and legacy 5 V alarm loops on one chip, and the industrial temperature rating covers outdoor enclosures from -40C to +85C. Deterministic single-event routing also avoids the configuration-bitflip concerns associated with SRAM FPGAs in always-on remote installations.
推薦
推薦產品摘要
工程參考資料，適用於 A42MX16-PQG208I — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | A42MX16-PQG208A | A42MX24-1PQG208I | A42MX36-PQG208I | A42MX36-3PQG208I |
|---|---|---|---|---|---|
| Package | 208-Pin PQFP (PQG208) | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same |
| Brand | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) |
| System Gates | 24,000 | 24,000 | 36,000 (42MX24 density) | Higher (42MX36 density) | Higher (42MX36 density) |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| JTAG Boundary Scan (IEEE 1149.1) | No | No | Yes | Yes | Yes |
| Temperature Grade | Industrial (-40C to +85C) | Automotive (A suffix) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Speed Grade | Standard (103 MHz / 172 MHz) | Standard | -1 | Standard | -3 (fastest) |
主要差異化特點
- Lowest-cost 208-pin PQFP entry point in the 42MX family (對比A42MX36-PQG208I)
- Industrial temperature rating in the identical footprint (對比A42MX16-PQG208A)
- Instant-on antifuse configuration (對比A42MX24-1PQG208I)
設計說明
The A42MX16-PQG208I requires both 3.3 V and 5 V supplies per the 42MX family datasheet. Sequence the rails according to the datasheet power-up specification and decouple each supply pin with 0.1 uF ceramics placed within 2 mm of the pin, plus bulk capacitance near the package. Estimated: at moderate utilization of a 24K-gate 0.45 um antifuse fabric, core current is typically tens of milliamps, but verify with the Microchip Libero/power tools for your actual design rather than relying on estimates.
The 208-pin PQFP has 0.5 mm-pitch leads requiring a solder-mask-defined land pattern per the manufacturer package drawing. Include thermal relief vias under the die area where the board allows, and keep high-fanout FPGA I/O traces short with controlled impedance when driving backplane signals. The PQFP gull-wing leads are mechanically less forgiving than BGA/CSP packages, so specify an inspection-friendly stencil and consider X-ray sampling on first-article builds to confirm lead coplanarity reflow results.
Do not confuse temperature suffixes: the I suffix is industrial (-40C to +85C) while suffix A and M denote automotive and military grades. Second, note that JTAG boundary scan (IEEE 1149.1) is only available on 42MX24/42MX36 devices - if your test plan depends on boundary scan, the A42MX16 will not meet it; select A42MX24-1PQG208I instead. Finally, antifuse devices are one-time programmable: reserve spare gates and verify the design fully in simulation before programming production devices.
合規資訊
Compliance status was not stated in the verified web data. Microchip product pages typically provide RoHS/REACH declarations per part number; consult the Microchip A42MX16 product page for current certificates.
