A42MX09-3TQG176I - 14K Gate MX FPGA, 104 I/O | Microchip
MPN： A42MX09-3TQG176I ✓ 啟用中A42MX09-3TQG176I 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that designers configure after manufacturing. Within the programmable logic hierarchy, the MX family sits in the low-cost, high-volume tier of FPGAs, which in turn belong to the broader category of programmable logic devices (PLDs), alongside CPLDs and structured ASICs.
The key differentiator of the MX family is its antifuse programmable interconnect architecture. Unlike SRAM-based FPGAs that require a configuration device at every power-up, the antifuse fabric is programmed once and becomes permanent, providing instant-on operation, inherently high design security, and no configuration readback risk. This makes the A42MX09 a reliable single-chip ASIC alternative for integrating legacy PLD designs into one low-cost device.
The 5.0V-tolerant, flexible architecture of the MX family supports 5V and 3.3V I/O environments that dominate legacy industrial backplanes, while the -3 speed grade denotes the fastest commercially supported performance bin for this die. With 14K system gates and 104 I/Os, the device addresses glue logic consolidation, bus interfacing, state machines, and control-plane functions.
Typical applications include industrial automation control, legacy PLD consolidation, military/aerospace control boards, and high-volume embedded systems where non-volatile, tamper-resistant logic is required without external configuration flash.
When designing with the A42MX09-3TQG176I, note that the industrial (I) suffix guarantees -40C to +85C operation, whereas the non-suffixed commercial part is rated 0C to +70C; choose accordingly for the thermal environment. Antifuse programming requires the dedicated Microchip programming flow and cannot be reworked in-field.
This page synthesizes distributor pricing, same-package drop-in alternatives across the MX family, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 A42MX09-3TQG176I — 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： A42MX09-3TQG176I （相同外形與佔位） — 差異在於 Package, System Gates, Family, Supply Voltage, Configuration.
A42MX09-3TQG176
✅ 直接替換聯絡詢價
查看資料表 →A42MX09-2TQG176I
✅ 直接替換聯絡詢價
查看資料表 →A42MX09-TQG176M
✅ 直接替換聯絡詢價
查看資料表 →A42MX09-TQG176A
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-1TQG176I
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-2TQG176I
✅ 直接替換聯絡詢價
查看資料表 →A42MX24-1TQG176
✅ 直接替換聯絡詢價
查看資料表 →A42MX09-3TQG176I 最大額定值與電氣特性
| Family | MX FPGA (antifuse) |
| System Gates | 14000 |
| Number of I/O | 104 |
| Supply Voltage (Core/IO Rail 1) | 3 V to 3.6 V |
| Supply Voltage (Rail 2) | 4.75 V to 5.25 V |
| Speed Grade | -3 |
| Programming Technology | Antifuse (one-time programmable) |
| 封裝 | 176-TQFP (24x24 mm) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C (industrial, I suffix) |
| RoHS 狀態 | ROHS3 Compliant |
| Packaging | Tray |
| Manufacturer Lead Time | 10 weeks |
| Product Status | Active |
| Configuration | Non-volatile, no external configuration device required |
| Architecture | 5.0 V flexible MX architecture |
A42MX09-3TQG176I 176-tqfp (24x24 mm) 腳位配置指南
A42MX09-3TQG176I（176-tqfp (24x24 mm) 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： A42MX09-3TQG176I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A42MX09-3TQG176I 適用於 6 應用s: Legacy PLD Consolidation, Industrial Automation Control, Single-Chip ASIC Alternative / High-Volume Embedded Systems, Aerospace and Defense Control Boards, 5V Legacy Backplane Interface, Security-Critical Logic and Anti-Cloning.
Legacy PLD Consolidation
The A42MX09-3TQG176I is purpose-built for integrating legacy PLDs, PALs, and small CPLDs into a single low-cost antifuse FPGA. Its flexible 5.0 V architecture supports the 5V (4.75V to 5.25V) and 3.3V (3V to 3.6V) I/O environments common on aging industrial boards, eliminating level-shift circuitry. With 14,000 system gates and 104 user I/Os, several discrete logic devices can be absorbed into one package, cutting BOM count and board area. Because the antifuse fabric is non-volatile, no configuration flash is needed, preserving the instant-on behavior of the original PLD design.
推薦
Industrial Automation Control
In industrial automation, the A42MX09-3TQG176I provides glue logic, bus interfacing, and state-machine control between PLC modules, motor drives, and sensor nodes. The industrial -40C to +85C rating of the I-suffixed part is essential on factory floors, and the 104 I/Os handle parallel fieldbus and backplane interfaces natively at 5V levels. The -3 speed grade supports fast combinational decode and sequenced control outputs, while the one-time-programmable fabric resists configuration corruption from EMI and brownouts - a real risk for SRAM FPGAs in electrically noisy switch-cabinet environments. Lead time is 10 weeks, so production schedules should secure stock early.
推薦
Single-Chip ASIC Alternative / High-Volume Embedded Systems
Microchip positions the MX family as a reliable, single-chip ASIC alternative for high-volume products. The A42MX09-3TQG176I delivers mask-ASIC-like permanence - the antifuse interconnect is hard-programmed once - without ASIC NRE charges or long mask lead times. Its 14K gates and 104 I/Os suit control-plane logic, address decode, and protocol bridges in embedded controllers. Designers implement the design once, program production devices, and ship with confidence that the logic cannot be altered, cloned via configuration readback, or corrupted in the field, making it attractive for cost-sensitive, high-volume embedded platforms where design IP protection matters.
推薦
Aerospace and Defense Control Boards
The MX antifuse architecture has a long heritage in aerospace and defense electronics, where immunity to configuration upsets and radiation-tolerant qualification flows matter. The A42MX09-3TQG176I's permanently programmed fabric contains no external bitstream to protect and no SRAM cells to upset, and screened variants such as the A42MX09-TQG176M address military-grade flows in the identical 176-TQFP footprint. Typical uses include telemetry framing, sensor-glue logic, power-sequencing controllers, and bus interfaces on avionics boards. Engineers should select the M- or A-suffixed screening grades for programs with formal part-quality requirements rather than the standard industrial part.
推薦
5V Legacy Backplane Interface
Many installed telecom, test, and industrial chassis still run 5V TTL backplanes that modern SRAM FPGAs cannot tolerate. The A42MX09-3TQG176I natively supports the 4.75V to 5.25V rail, allowing direct connection to TTL-level backplane signals through its 104 user I/Os. Acting as a protocol translator, address decoder, or interrupt controller between an aging backplane and a modern 3.3V processor section, the device bridges two voltage domains in one chip. Its instant-on, non-volatile configuration also means the board is functional the moment power is applied, matching the behavior of the original TTL/PLD designs being replaced or upgraded.
推薦
Security-Critical Logic and Anti-Cloning
Because antifuse FPGAs carry no external configuration image and offer no readback of the programmed netlist, the A42MX09-3TQG176I is well suited to security-critical logic: authentication blocks, key-handling state machines, and anti-cloning gates on payment, access-control, and licensing boards. An attacker who captures the PCB cannot extract the design from the device the way configuration flash or SRAM bitstreams can be dumped. With 14K gates there is room for moderate cryptographic glue around a dedicated secure MCU. The trade-off is that any design update requires physically replacing programmed devices, so freeze the logic before volume production.
推薦
推薦產品摘要
工程參考資料，適用於 A42MX09-3TQG176I — 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 | A42MX09-3TQG176 | A42MX09-2TQG176I | A42MX16-2TQG176I | A42MX24-1TQG176 |
|---|---|---|---|---|---|
| Package | 176-TQFP (24x24 mm) | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Speed Grade | -3 | -3 | -2 | -2 | -1 |
| Operating Temperature | -40C to +85C (I) | 0C to +70C | -40C to +85C | -40C to +85C | 0C to +70C |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
主要差異化特點
- Fastest MX09 speed grade with industrial temperature (對比A42MX09-3TQG176)
- Same-die upgrade path when gates run out (對比A42MX16-2TQG176I)
- Non-volatile instant-on antifuse fabric (對比SRAM-based FPGAs)
設計說明
The A42MX09-3TQG176I requires two supply rails: 3V to 3.6V (typically 3.3V) and 4.75V to 5.25V (5V) per the Microchip MX family data. Decouple each VDD pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF per rail. Antifuse FPGAs draw no configuration current at power-up, but inrush into decoupling and I/O loads should still be characterized. Estimated: budget rail current by simulating your netlist, since MX static and dynamic current depend heavily on toggle rates.
Antifuse devices are one-time programmable: a mistake in the design cannot be reworked in the device. Complete full timing simulation and static timing analysis at the -3 speed grade in Microchip Libero/Designer before programming any production unit. Also note the VPP programming-voltage pin must be handled exactly as the MX family datasheet specifies during programming; in-circuit programming fixtures must expose it. Never substitute the commercial 0C to +70C A42MX09-3TQG176 in a design that can drop below freezing.
The 176-TQFP (24x24 mm) has 0.5 mm pin pitch; use a solder-mask-defined land pattern per IPC-7351 recommendations and verify paste aperture reduction to avoid bridging on this legacy-pitch package. Keep global clock (GCLK) routing on the dedicated GCLK pins listed in the MX datasheet - driving clocks through general fabric inputs degrades skew and timing closure at the -3 grade. Assign unused I/O per the datasheet default and tie unused inputs, since floating inputs increase noise susceptibility on 5V-tolerant banks.
合規資訊
ROHS3 Compliant per Microchip USA / distributor data. REACH, halogen-free and conflict-minerals declarations not stated in provided data - request formal compliance package from Microchip.
