M1AFS250-FG256 - Fusion FPGA 250K Gates ARM Cortex-M1 | Microchip
MPN： M1AFS250-FG256 ✓ 啟用中M1AFS250-FG256 概覽
A fusion mixed-signal FPGA is a field-programmable gate array that combines flash-based programmable fabric with analog peripherals, flash memory blocks, and clock management on one monolithic die. Within the power/processing hierarchy, this places the M1AFS250 as a system-on-chip (SoC): FPGA fabric plus an ARM Cortex-M1 soft-processor core running at up to 350 MHz, bridging programmable logic and embedded MCU control without a discrete microcontroller.
Key features include 250K system gates (approximately 6,144 logic cells per the Microchip USA listing), 114 user I/O, comprehensive on-chip clock generation and management circuitry, and large flash memory blocks. The monolithic integration of configurable analog and digital fabric reduces board area and bill-of-materials count for mixed-signal control systems.
Technically, the M1AFS250 family is manufactured on a 130nm flash-based process (per Jotrin Electronics), offering nonvolatile, secure, instant-on configuration without an external configuration PROM. The FG256 package is a 1.00 mm ball pitch 256-ball BGA, surface-mount (SMD/SMT), supplied in tray packaging. Commercial temperature range is 0C to +70C. Note that this exact ordering code is RoHS non-compliant and contains lead; the FGG256 (Green) variant is the lead-free drop-in alternative on the same footprint.
Typical applications include industrial automation control, smart power motor control, portable instrumentation, and embedded systems requiring single-chip analog monitoring plus logic. The 1.5V core and flash fabric suit low-power, high-reliability designs.
Design consideration: verify the FGG256 (RoHS-compliant) alternative early, since the FG256 leaded version may face procurement and environmental restrictions in new designs.
This page synthesizes distributor pricing, drop-in same-footprint alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 M1AFS250-FG256 — 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： M1AFS250-FG256 （相同外形與佔位） — 差異在於 System Gates, Configuration Memory, Series, Package, RoHS Status.
M1AFS250-FGG256
✅ 直接替換聯絡詢價
查看資料表 →M1AFS250-2FG256I
✅ 直接替換聯絡詢價
查看資料表 →M1AFS250-2FGG256
✅ 直接替換聯絡詢價
查看資料表 →M1AFS250-2FGG256I
✅ 直接替換聯絡詢價
查看資料表 →M1AFS600-2FG256
✅ 直接替換聯絡詢價
查看資料表 →M1AFS1500-1FGG256
✅ 直接替換聯絡詢價
查看資料表 →M1AFS250-FG256 最大額定值與電氣特性
| Manufacturer Part Number | M1AFS250-FG256 |
| Family | Fusion (M1 series, ARM Cortex-M1) |
| System Gates | 250000 |
| Logic Cells | 6144 |
| Embedded Processor | ARM Cortex-M1 |
| 最大時脈頻率 | 350 MHz |
| Number of I/O | 114 |
| RAM Bits | 36864 |
| Process Technology | 130 nm |
| Core Supply Voltage | 1.5 V |
| Configuration Memory | Flash (nonvolatile) |
| 工作溫度範圍 | 0C to +70C |
| 封裝 / 外殼 | 256-FBGA (256-LBGA), 1.00 mm pitch |
| 安裝方式 | SMD/SMT |
| Packaging | Tray |
| RoHS 狀態 | RoHS Non-Compliant (contains lead) |
| Lead Free Status | Contains Lead |
| Series | M1AFS250 |
M1AFS250-FG256 256-fbga (256-lbga), 1.00 mm pitch 腳位配置指南
M1AFS250-FG256（256-fbga (256-lbga), 1.00 mm pitch 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： M1AFS250-FG256.
請參閱 資料表 以查看完整腳位配置。
典型應用
M1AFS250-FG256 適用於 6 應用s: Smart Power and Motor Control, Industrial Automation and Control Panels, Portable and Battery-Powered Instrumentation, Embedded System-on-Chip Designs (Cortex-M1 + Logic), Test and Measurement Equipment, Legacy Long-Lifecycle System Maintenance.
Smart Power and Motor Control
The M1AFS250-FG256 fits smart power and motor-control designs because its monolithic Fusion die combines configurable analog monitoring with flash-based logic and an ARM Cortex-M1 processor running at up to 350 MHz. PWM generation, dead-time insertion, and closed-loop control algorithms execute in fabric and processor without a discrete MCU, while the analog block supervises bus voltage and phase current without external ADCs. With 114 user I/O, gate-driver and encoder interfaces connect directly. Placing supervisory sampling in the FPGA fabric removes ADC latency from the control loop, enabling faster fault shutdown than MCU-only designs. Designers should budget core power at 1.5V based on fabric utilization and clock rate, and should note the FG256 is leaded, so industrial RoHS-exempt status must be confirmed or the FGG256 drop-in selected.
推薦
Industrial Automation and Control Panels
In industrial automation, the M1AFS250-FG256 consolidates sequencing logic, sensor aggregation, and supervisory control in one 256-FBGA device. The flash-based fabric configures instantly at power-up without an external boot PROM, reducing board components and improving field reliability, while the Cortex-M1 handles protocol handling such as MODBUS-style polling or custom state machines. The commercial 0C to +70C range suits cabinet-mounted controllers; for floor-level hardware select the industrial-temperature M1AFS250-2FG256I on the same footprint. The nonvolatile flash fabric also resists configuration corruption in noisy EMC environments typical of factory floors, an advantage over SRAM FPGAs. Designers should implement the 1.5V core rail with proper sequencing per the Microchip Fusion datasheet and reserve I/O banks for isolated field interfaces.
推薦
Portable and Battery-Powered Instrumentation
The M1AFS250-FG256 suits portable instrumentation where single-chip integration minimizes size and quiescent power. The 130 nm flash process draws essentially zero static configuration power compared to SRAM FPGAs, and the 1.5V core supply supports efficient DC-DC generation from Li-ion inputs. The integrated configurable analog replaces discrete amplifiers and ADCs for slow-speed measurement channels, while the Cortex-M1 at up to 350 MHz performs scaling, calibration, and display updates. Nonvolatile instant-on configuration lets the instrument be ready in milliseconds after wake, important for triggered measurements. Because the commercial temperature part tops out at +70C, handheld enclosures with heat concentration should be thermally evaluated. Estimate: core dissipation scales with clock frequency and utilization, so keep unused fabric idle to extend battery life.
推薦
Embedded System-on-Chip Designs (Cortex-M1 + Logic)
For embedded designs needing both a processor and custom logic, the M1AFS250-FG256 eliminates the discrete MCU plus FPGA pairing. The ARM Cortex-M1 soft core runs at up to 350 MHz on the same die as 6,144 logic cells and 36,864 RAM bits, communicating with fabric through on-chip interfaces with far lower latency than an external bus. Software development uses standard ARM toolchains while hardware is built in Microchip Libero SoC, allowing concurrent firmware and RTL work. The monolithic approach also removes board-level trace timing risk between MCU and FPGA and cuts BOM count. Memory-constrained designs should verify the 36,864 bits of block RAM suffices for buffering; otherwise select the pin-compatible M1AFS1500-FG256, which multiplies memory and logic resources on the identical PCB land pattern.
推薦
Test and Measurement Equipment
Bench and embedded test instruments benefit from the M1AFS250-FG256's instant-on flash configuration and mixed-signal integration. The FPGA fabric implements trigger logic, timing generators, and interface bridges (UART, SPI, parallel buses) with deterministic timing, while the Cortex-M1 manages command parsing and housekeeping. The configurable analog block provides monitoring channels for supply and signal supervision. In lab instruments, the 0C to +70C commercial range is typically adequate. Integration of clock generation and management circuitry on-chip simplifies jitter budgeting for measurement timing chains compared to multi-chip clock trees. Designers should place high-speed I/O banks near board edge connectors in the FG256 footprint to minimize stub lengths, and decouple the 1.5V core with low-ESR ceramics per the Microchip power design guidance.
推薦
Legacy Long-Lifecycle System Maintenance
For maintaining legacy systems originally built around Actel Fusion silicon, the M1AFS250-FG256 provides continuity since Microchip (formerly Microsemi) continues the product line with unchanged silicon and Libero design support. The nonvolatile flash configuration means original bitstreams load identically on new silicon, avoiding SRAM-FPGA boot issues in fielded hardware. When regulatory requirements tighten, M1AFS250-FGG256 is the pin-compatible lead-free drop-in, and when capacity must grow, M1AFS600 and M1AFS1500 in FG256 packages reuse the same PCB footprint per the manufacturer product brief, which states Fusion devices in the same package are pin compatible (except PQ208). Procurement teams should validate speed grade and temperature suffix against the original BOM before substitution.
推薦
推薦產品摘要
工程參考資料，適用於 M1AFS250-FG256 — 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 | M1AFS250-FGG256 | M1AFS250-2FG256I | M1AFS600-2FG256 | M1AFS1500-1FGG256 |
|---|---|---|---|---|---|
| Package | 256-FBGA (1.00 mm pitch) | 256-FBGA - same footprint | 256-FBGA - same footprint | 256-FBGA - same footprint | 256-FBGA - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 250,000 | 250,000 | 250,000 | 600,000 | 1,500,000 |
| Embedded Processor | ARM Cortex-M1 | ARM Cortex-M1 | ARM Cortex-M1 | ARM Cortex-M1 | ARM Cortex-M1 |
| Core Supply Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
主要差異化特點
- RoHS-compliant drop-in available on identical footprint (對比M1AFS250-FGG256)
- Lowest cost and power in the pin-compatible FG256 family (對比M1AFS600-2FG256)
- Commercial-only temperature range (對比M1AFS250-2FG256I)
設計說明
Supply the M1AFS250-FG256 core with a regulated 1.5V rail; I/O and analog banks use additional rails per the Microchip Fusion datasheet power architecture. Follow the datasheet power-up sequencing order strictly - incorrect rail sequencing can latch the I/O or misconfigure the analog block. Decouple each supply pin pair with low-ESR ceramic capacitors placed close to the 256-FBGA balls, and use a solid ground return through the BGA via field. Estimated: core dissipation scales with clock frequency and fabric utilization - budget using Libero SoC power analysis, not rule-of-thumb numbers.
The FG256 is a 1.00 mm pitch 256-ball BGA, requiring controlled-impedance multilayer PCB with via-in-pad or dog-bone fanout. Keep breakout length short and uniform to preserve signal integrity on the 114 user I/O. Reserve continuous copper under the package for the analog ground quadrant - the Fusion analog block shares the die and is sensitive to digital return currents. Do not route fast switching signals across the analog quadrant's escape fanout. Reference the Microchip Fusion board layout guidelines before finalizing the land pattern, especially if planning future migration to M1AFS600/M1AFS1500 FG256 devices.
The most frequent procurement pitfall: the FG256 ordering code is RoHS non-compliant and contains lead, restricting new EU/REACH-bound designs - specify M1AFS250-FGG256 (identical footprint) unless the application is RoHS-exempt. Second pitfall: temperature suffix. FG256 alone is 0C to +70C commercial; field-deployed hardware needs the -I industrial variants such as M1AFS250-2FG256I. Third, when migrating to M1AFS600/1500 FG256 parts, remember pin-compatibility does not guarantee identical per-pin analog configuration - re-verify analog assignments in Libero SoC before respin-free migration.
合規資訊
Per digichip.com datasheet data: Lead Free Status - Contains Lead; RoHS Status - RoHS Non-Compliant. The M1AFS250-FGG256 variant is the Green, lead-free alternative. REACH and conflict-minerals status not stated in provided data.
