A42MX24-1TQG176M - 36K Gate MX FPGA 176-TQFP | Microchip
MPN： A42MX24-1TQG176M ✓ 啟用中A42MX24-1TQG176M 概覽
An FPGA (Field-Programmable Gate Array) is a reconfigurable integrated circuit that implements digital logic through programmable interconnect and logic modules. Within the power management hierarchy of digital ICs, the MX family occupies the one-time-programmable (OTP) antifuse FPGA segment, offering designers a reliable single-chip ASIC alternative for integrating legacy PLDs into a single, low-cost, high-volume device.
Key features include 36K system gates, 912 logic cells, up to 150 user I/Os, and D-modules arranged around the device periphery containing wide-decode circuitry that provides a fast, wide-input AND function similar to CPLD architectures. The 5.0V-tolerant, flexible architecture makes MX an ideal platform for legacy PLD consolidation. The antifuse fabric is non-volatile and configuration-data secure, unlike SRAM FPGAs that require external configuration memory.
Technically, the 42MX family combines C-modules (combinational logic) and S-modules (sequential logic with flip-flops), with A42MX24 and A42MX36 devices adding D-modules for wide-decode functions. This module mix enables efficient state machines, decoders, and glue-logic integration at low static power.
Typical applications include legacy PLD consolidation, industrial control glue logic, military/aerospace upgrades of 5V systems, and bridge/interface logic where 5V-tolerant I/O is required.
Design consideration: as a one-time-programmable antifuse device, programming is irreversible - verify the design thoroughly in simulation with Libero/Microsemi design tools before programming production units, and ensure 3.3V/5V rail sequencing complies with the datasheet.
直接替換替代品，適用於 A42MX24-1TQG176M — 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： A42MX24-1TQG176M （相同外形與佔位） — 差異在於 Package, Supply Voltage, RoHS Status, System Gates, Logic Cells.
A42MX24-1TQG176I
✅ 直接替換聯絡詢價
查看資料表 →A42MX24-TQG176M
✅ 直接替換聯絡詢價
查看資料表 →A42MX24-TQG176A
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-1TQG176I
⚡ 相同封裝聯絡詢價
查看資料表 →A42MX24-1TQG176M 最大額定值與電氣特性
| Family | MX (42MX) |
| System Gates | 36000 |
| Logic Cells | 912 |
| User I/Os | 150 |
| 供應電壓 | 3.3V / 5V dual |
| Process Technology | 0.45um CMOS antifuse |
| Speed Grade | -1 |
| Program Type | One-Time Programmable (OTP) antifuse |
| D-Modules (Wide Decode) | Yes |
| 封裝 | 176-Pin TQFP |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Lead Free Status | Lead Free |
| Configuration Security | Non-volatile, no external config memory |
A42MX24-1TQG176M 176-pin tqfp 腳位配置指南
A42MX24-1TQG176M（176-pin tqfp 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： A42MX24-1TQG176M.
請參閱 資料表 以查看完整腳位配置。
典型應用
A42MX24-1TQG176M 適用於 6 應用s: Legacy PLD Consolidation, Industrial Control Glue Logic, Defense and Aerospace System Upgrades, 5V-Tolerant Bridge and Interface Logic, Test and Measurement Adapter Logic, ASIC Prototyping and Emulation.
Legacy PLD Consolidation
The MX family is explicitly positioned by Microchip as a single-chip ASIC alternative for integrating legacy PLDs. The A42MX24-1TQG176M provides 36K system gates with D-module wide-decode logic, allowing multiple 22V10-class PALs, GALs, and small CPLDs to be merged into one device. Because I/O is 5V-tolerant on a 3.3V/5V architecture, legacy board-level voltage domains do not require level translation. OTP antifuse programming also eliminates configuration-ROM BOM cost and configuration-time delays at power-up, a common pain point in long-lifecycle industrial boards.
推薦
Industrial Control Glue Logic
In industrial controllers, the A42MX24-1TQG176M implements address decoding, bus arbitration, and interface bridging between microprocessors and peripherals. The D-modules provide fast, wide-input AND functions similar to CPLD decode architectures, enabling chip-select logic with predictable single-path delays on the -1 speed grade. The 150 user I/Os in the 176-TQFP cover most 8/16-bit microprocessor buses with margin. Non-volatile antifuse configuration means the logic is active immediately at power-on with no configuration controller, improving system bring-up reliability in factory environments with unstable power sequencing.
推薦
Defense and Aerospace System Upgrades
Antifuse FPGAs are favored in defense upgrades because the programmed interconnect cannot be read back as bitstream data, providing inherent configuration security compared to SRAM FPGAs. The A42MX24-1TQG176M's 5V-tolerant I/O directly interfaces with legacy military 5V logic families without translators, easing retrofit of avionics and ground systems. The A ordering code variant (A42MX24-TQG176A) supports programs requiring higher screening levels. Designers should model timing on the -1 grade in Libero and reserve the TQG176A variant where environmental screening is mandated.
推薦
5V-Tolerant Bridge and Interface Logic
The MX 5.0V architecture lets the A42MX24-1TQG176M sit directly between legacy 5V TTL/CMOS buses and 3.3V subsystems. With 150 user I/Os and dual 3.3V/5V supplies, designers implement PCI-era bus bridges, backplane interfaces, and mixed-voltage memory controllers in one device. Unlike SRAM FPGAs, no bus-switch or series-resistor level-shifting schemes are needed at 5V boundaries. Static power is low for the 0.45um process, but designers should still budget I/O current per the DS2316 DC characteristics when driving heavily loaded 5V buses.
推薦
Test and Measurement Adapter Logic
Bench instruments and fixture adapters benefit from the A42MX24-1TQG176M's immediate power-on operation and fixed timing. Decode, clock division, and protocol-shunt logic programmed into antifuse fabric behaves identically across every unit, simplifying calibration compared to devices with configuration variability. The -1 speed grade provides deterministic delays suited to sub-50MHz control paths common in fixture logic. The 176-TQFP's 0.5mm pitch supports straightforward rework and socketed prototyping fixtures used in production test engineering.
推薦
ASIC Prototyping and Emulation
Before committing to an ASIC mask set, the A42MX24-1TQG176M can prototype control-path and glue logic at 36K gates. Although antifuse devices are OTP, the low unit cost of the MX family allows multiple programming iterations during bring-up, and the deterministic antifuse timing closely models ASIC static timing without SRAM-FPGA reconfiguration artifacts. The 5V-tolerant I/O matches the voltage domains of many mature-node ASIC test benches. Combine with the A42MX36 for designs that outgrow 36K gates during emulation.
推薦
推薦產品摘要
工程參考資料，適用於 A42MX24-1TQG176M — 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 | A42MX24-1TQG176I | A42MX24-TQG176M | A42MX24-TQG176A | A42MX16-1TQG176I |
|---|---|---|---|---|---|
| Package | 176-TQFP | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 36000 | 36000 | 36000 | 36000 | 16000 |
| Speed Grade | -1 | -1 | standard (see DS2316) | standard (see DS2316) | -1 |
| Supply Voltage | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V |
| Temperature Grade | M ordering code | Industrial (I) | M | A screening | Industrial (I) |
| RoHS Compliant | Yes (G suffix) | Yes (G suffix) | Yes (G suffix) | Yes (G suffix) | Yes (G suffix) |
主要差異化特點
- Industrial temperature option in identical footprint (對比A42MX24-1TQG176I)
- 36K gates vs 16K in same package (對比A42MX16-1TQG176I)
- OTP antifuse security vs SRAM FPGA alternatives (對比SRAM-based FPGAs (Xilinx/Intel))
設計說明
The A42MX24 uses dual 3.3V/5V supplies. Follow the DS2316 power-up requirements: decouple each VDD/VCCI pin with 0.1uF ceramic capacitors placed within 2mm of the pin, plus bulk 10uF per rail. Verify rail sequencing per the datasheet to avoid latch-up on the 0.45um process. Budget static and I/O current using the DS2316 DC tables; the 150 user I/Os driving 5V TTL loads can dominate total power in bus-heavy designs.
This is a one-time-programmable antifuse FPGA - programmed devices cannot be erased or reprogrammed. Complete functional simulation and timing analysis in Libero SoC before submitting devices to programming, and order engineering samples in low quantities before volume programming. Reserve the -1 speed grade timing margin of at least 10% in static timing analysis, as antifuse routing delays are deterministic but not adjustable after programming.
The 176-TQFP has 0.5mm pitch leads; use a 4-mil trace/space land pattern per IPC-7351 TQFP-176 conventions and include thermal relief vias under the center for inspection access. Keep high-fanout D-module decode outputs on short, direct traces to minimize stub reflections. Unused I/O should be configured per DS2316 recommendations (tri-state with weak pull-up or ground) to prevent floating-node EMI.
合規資訊
RoHS compliant and lead free per DigiKey and digchip listings (G package suffix). REACH and halogen-free status not stated in retrieved data.
