A3P125-VQG100 ProASIC3 Flash FPGA 71 I/O TQFP-100 | Microchip
MPN: A3P125VQG100 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.33 | $14.33 |
| 10 | $13.9 | $139.00 |
| 100 | $13.4 | $1,340.00 |
| 500 | $12.8 | $6,400.00 |
| 1,000 | $12.3 | $12,300.00 |
Drop-in alternatives for A3P125VQG100 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A3P125-1VQG100I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$9.44 / Unit
View Datasheet →A3P125-1VQG100T
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$17.6 / Unit
View Datasheet →A3P125-VQ100T
✅ Drop-In✓ In Stock
$7.5 / Unit
View Datasheet →A3P060-2VQG100
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$21.6 / Unit
View Datasheet →A3P250-2VQG100
✅ Drop-In✓ In Stock
$17.5 / Unit
View Datasheet →A3P125VQG100 Maximum Ratings & Electrical Characteristics
| Logic Elements | 1500 LEs (1.5K) |
| Number of I/O | 71 |
| Embedded Memory | 36864 bits true dual-port SRAM |
| Family | ProASIC3 Flash FPGA |
| Technology | Nonvolatile Flash |
| Package | 100-TQFP (VQG100, 14x14 mm) |
| Mounting Type | Surface Mount |
| Configuration | Self-contained, instant-on (no external boot PROM) |
| Soft ARM Support | Optional (ProASIC3 family feature) |
| LVDS-capable I/O | Supported in ProASIC3 family (700 Mbps DDR on A3P250 and above) |
| Standard Package Quantity | 90 |
A3P125VQG100 90 Pin Configuration Guide
Complete pinout information for A3P125VQG100 (90 package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A3P125VQG100.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A3P125VQG100 is suitable for 6 applications: Industrial Control and Automation, Communication Interface Bridging, Portable and Battery-Powered Instruments, Aerospace and Defense Control Logic, Motor Drive and Power Electronics Sequencing, Security and Surveillance Electronics.
Industrial Control and Automation
The A3P125-VQG100 fits industrial control boards that need deterministic, instant-on logic without an external configuration device. Its nonvolatile flash fabric powers up functional in microseconds - critical for factory automation nodes that must respond to sensors the moment power is applied. With 1,500 logic elements, 71 user I/Os, and 36,864 bits of dual-port SRAM, it implements state machines, encoder interfaces, and PLC I/O bridges in one chip. Placed between a microcontroller and field I/O, it offloads timing-critical handshake logic while the MCU runs supervision tasks. The 14x14 mm TQFP fits standard 2-layer and 4-layer industrial PCBs, and the industrial-grade A3P125-1VQG100I variant shares the footprint for harsh-temperature deployments, eliminating PCB respins.
Recommended
Communication Interface Bridging
The A3P125-VQG100 serves as a protocol bridge between legacy buses and modern interfaces in networking and industrial communication equipment. The ProASIC3 fabric provides LVDS-capable I/O within the family, and the 71 user I/Os in the 100-pin TQFP support wide parallel buses such as 16- or 32-bit data paths with control signals. Its 36,864-bit true dual-port SRAM enables FIFO buffering between clock domains - for example, crossing a UART or SPI stream into a parallel microprocessor bus. Because flash configuration is instant-on, link logic is live before host software boots, simplifying bring-up and reducing external sequencing. For designs needing 700 Mbps DDR signaling, migrate to the pin-compatible A3P250-2VQG100 without PCB rework.
Recommended
Portable and Battery-Powered Instruments
Low total cost of ownership and small footprint make the A3P125-VQG100 attractive for portable measurement instruments, handheld testers, and battery-operated data loggers. The single-chip flash architecture eliminates the external configuration PROM, saving board area and quiescent configuration current - relevant where every milliwatt of standby budget counts. The 14x14 mm, 100-pin TQFP keeps layout compact, and its 1,500 logic elements handle display multiplexing, sensor-front-end timing, and button-scanning logic that would burden a small MCU. Dual-port SRAM buffers sampled data between acquisition logic and a host MCU or USB bridge. Designers should confirm exact Icc numbers from the datasheet for their battery budget and consider the A3P060-2VQG100 footprint-mate for even lower cost at reduced density.
Recommended
Aerospace and Defense Control Logic
Microsemi (now Microchip) ProASIC3 flash FPGAs have a long heritage in terrestrial aerospace and defense subsystems, and the A3P125-VQG100 extends that lineage to low-density control logic such as telemetry formatting, sensor aggregation, and safe-mode controllers. Nonvolatile flash configuration avoids configuration-readout concerns of SRAM FPGAs and delivers instant-on behavior required by power-cycled payloads. The ProASIC3 family is documented with optional Soft ARM support, enabling a small embedded controller beside custom logic in a single chip. For programs requiring higher densities or additional radiation and military-screening options within the same fabric and toolchain, the A3P600 and A3P1000 members offer migration paths while the flash architecture and Libero design flow remain unchanged.
Recommended
Motor Drive and Power Electronics Sequencing
In motor-drive and power-conversion boards, the A3P125-VQG100 handles gate-timing coordination, dead-time generation, and fault-latching logic that must operate deterministically and survive brownouts. Because the flash fabric is instant-on, protection interlocks are active immediately at power-up, before any microcontroller finishes booting - a safety benefit for high-voltage systems. The 71 I/Os accommodate multiple PWM channels, current-sense comparators inputs, and status flags, while dual-port SRAM logs fault histories for diagnostics. Pair it with gate-driver ICs and an MCU supervisory layer; the FPGA executes cycle-accurate timing while the MCU handles communication and setpoints. Verify the datasheet I/O banking rules so high-edge-count PWM signals share compatible banks within the 100-pin footprint.
Recommended
Security and Surveillance Electronics
Camera and surveillance hardware benefits from the A3P125-VQG100 as glue logic between image sensors, video encoders, and host processors. Its 1,500 logic elements manage sensor timing generation, frame-sync distribution, and GPIO expansion, while 36,864 bits of dual-port SRAM implement line buffers that smooth data flow into the video pipeline. The LVDS-capable I/O within the ProASIC3 family supports differential clocking for longer board-level traces in multi-board camera enclosures, and the instant-on flash configuration means camera-control logic is live before the SoC completes boot - useful for motion-triggered recording. Designs outgrowing 1,500 LEs can drop in the pin-compatible A3P250-2VQG100 to gain DDR I/O bandwidth without changing the PCB footprint or layout.
Recommended
Recommended Products Summary
Engineering reference data for A3P125VQG100 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A3P125-1VQG100I | A3P125-VQ100T | A3P060-2VQG100 | A3P250-2VQG100 |
|---|---|---|---|---|---|
| Package | 100-TQFP (VQG100, 14x14 mm) | 100-TQFP (VQG100) - same | 100-TQFP (VQ100) - same footprint | 100-TQFP (VQG100) - same | 100-TQFP (VQG100) - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Logic Elements | 1500 LEs | 1500 LEs | 1500 LEs | ~600 LEs | ~3000 LEs |
| User I/O | 71 | 71 | 71 | [DATA_NEEDED] | [DATA_NEEDED] |
| Speed Grade | Base grade (standard) | -1 standard | [DATA_NEEDED] | -2 (faster) | -2 (faster) |
| DDR/LVDS I/O Performance | LVDS-capable (700 Mbps DDR specified for A3P250 and above) | Same as A3P125 | Same as A3P125 | LVDS-capable | 700 Mbps DDR / LVDS |
| Temperature Grade | Base/commercial | Industrial (-I) | [DATA_NEEDED] | Base | Base |
| Indicative Unit Price (USD) | $14.33 (qty 1, as of 2026-08-31) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Lowest-cost ProASIC3 density point (vs A3P250-2VQG100)
- Industrial temperature option on identical footprint (vs A3P125-1VQG100I)
- Instant-on single-chip flash configuration (vs SRAM-based low-density FPGAs (Lattice/Gowin equivalents))
Design Notes
The ProASIC3 fabric uses a low-voltage core supply with separate I/O bank supplies; decouple each VCC and bank VCCI pin with 0.1 uF ceramics placed within 2 mm of the pin, plus bulk 10 uF per rail. Estimated: with 1,500 LEs of typical toggling activity, core current is modest (tens of mA), but I/O switching current on a 32-bit bus can dominate - budget per datasheet ICC tables rather than rules of thumb. Ensure power-up monotonicity so flash configuration read-out is glitch-free; the device is instant-on, so rail sequencing directly determines when user logic becomes valid.
The 100-pin TQFP has 0.5 mm pitch leads - use 0.25 mm-wide traces with solder-mask-defined pads and a 4x4 perimeter thermal via-free courtyard. Route JTAG (TCK, TMS, TDI, TDO) as a short daisy chain with 10 kOhm pull-ups on TMS/TDI to ensure Libero/FlashPro programming reliability across the full length of a programming cable. Assign wide buses to I/O banks first so bank voltage requirements (3.3 V vs 2.5 V vs 1.8 V) are fixed before layout; re-banking late in the design forces PCB respins.
Do not confuse ordering-code variants: A3P125-VQG100, A3P125-VQ100T, and A3P125-1VQG100I share the die and footprint but differ in speed/temperature grade and packing - verify the exact suffix against the Microchip ordering-code table before BOM substitution. Also note that 700 Mbps DDR LVDS I/O is specified for A3P250 and above; assuming that performance on the A3P125 is a design error. Finally, regenerate and re-verify the bitstream whenever swapping to A3P060 or A3P250, since resource utilization and timing change with density.
Compliance Information
Compliance status not stated in provided web data; the VQG100 suffix generally indicates green/RoHS packaging in Microchip ordering codes, but verify on the official Microchip product page before relying on it. AEC-Q100 qualification is not indicated for this commercial-grade ordering code.
