A3P125-TQ144 - 125K Gate Flash FPGA, 100 I/O | Microchip
Référence : A3P125-TQ144 ✓ ActifA3P125-TQ144 Présentation
A field-programmable gate array is a programmable digital logic device in which the interconnect and logic configuration are stored in non-volatile flash memory. An FPGA belongs to the broader semiconductor hierarchy of programmable logic devices, combining configurable logic blocks, programmable routing, and user I/O in one integrated circuit. Unlike a fixed-function application-specific integrated circuit, an FPGA permits design changes through programming rather than a new photolithography mask.
The A3P125-TQ144 offers 1.5K logic elements, 125K system gates, 100 user I/O, and up to 144 kbits of true dual-port SRAM within the ProASIC3 architecture. The device is manufactured using a 130 nm CMOS process with seven metal layers, and distributor listings identify a maximum operating frequency of 231 MHz and a 1.5 V core supply. Its flash configuration supports in-system reprogramming and retains the programmed logic when power is removed.
The 144-lead TQFP package provides a surface-mount footprint with 0.5 mm pitch and dimensions of approximately 28 mm by 28 mm. Compared with a fine-pitch BGA, the TQFP package is easier to inspect and rework, which benefits prototype assembly and low-volume industrial systems. Its 144-position lead count also gives the design substantially more routing options than the smaller ProASIC3 packages.
Typical uses include industrial control and automation, communications interfaces, embedded protocol bridges, test equipment, and low-power embedded controllers. The 100 available user I/O make the device suitable for designs that connect external sensors, memory devices, displays, and industrial bus transceivers. Its internal SRAM supports datapaths, packet buffering, and state-machine implementations that would otherwise require external memory.
When laying out the board, treat the TQFP as a fine-pitch high-density package: use a PCB footprint checked against the mechanical drawing, place decoupling capacitors at every supply pin, and reserve a ground plane around the device. Confirm the selected ProASIC3 speed and temperature grade against the production temperature range, and review the pin-placement table in the manufacturer datasheet before assigning user I/O.
This page combines device specifications, verified distributor listings, same-family drop-in candidates, application guidance, and PCB-focused design notes. It is intended to accelerate schematic capture, footprint verification, sourcing, and design-review for engineers evaluating the A3P125-TQ144.
Alternatives de remplacement direct pour A3P125-TQ144 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
A3P125-TQ144I
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
A3P125-1TQ144
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
A3P125-TQG144
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
A3P125-TQG144I
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
A3P125-TQ144 Valeurs maximales et caractéristiques électriques
| Device Type | Flash-based FPGA |
| FPGA Family | ProASIC3 |
| System Gates | 125K |
| Logic Elements | 1.5K |
| Logic Cells | 3072 |
| User I/O | 100 |
| Configuration Memory | 36,864 bits flash |
| SRAM | Up to 144 kbits true dual-port SRAM |
| Maximum Frequency | 231 MHz |
| Core Supply Voltage | 1.5 V |
| Process Technology | 130 nm CMOS, 7-layer metal |
| Boîtier | 144-lead TQFP, 28 mm x 28 mm, 0.5 mm pitch |
| Type de montage | Surface mount |
| Programming Interface | In-system programmable flash configuration |
Guide de configuration des broches du A3P125-TQ144 144-lead tqfp, 28 mm x 28 mm, 0.5 mm pitch
Configuration des broches du A3P125-TQ144 (boîtier 144-lead tqfp, 28 mm x 28 mm, 0.5 mm pitch). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour A3P125-TQ144.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
A3P125-TQ144 convient pour 6 applications: Industrial Control and Automation, Communications Interface and Protocol Bridge, Test and Measurement Equipment, Signal Conditioning and Interface Conversion, Embedded Data Acquisition and Logging, Secure Programmable System Controller.
Industrial Control and Automation
The A3P125-TQ144 fits compact industrial controllers that coordinate sensors, actuators, interlocks, and discrete I/O. Its 1.5K logic elements are sufficient for state machines, timing sequences, and protocol translation, while 100 user I/O provide substantial board-level connectivity. The 130 nm flash-based configuration allows firmware and control logic to be updated in the field without replacing the device. For factory equipment, select the ordering grade that covers the enclosure temperature and verify supply-noise tolerance, I/O standards, and timing margins.
Recommandé
Communications Interface and Protocol Bridge
The A3P125-TQ144 can implement parallel-to-serial bridges, packetizers, frame synchronizers, and legacy interface adapters where deterministic programmable logic is needed. Its up to 144 kbits of true dual-port SRAM provides useful buffer space for parallel data staging, while the 231 MHz device rating supports moderately clocked datapaths. Keep the design inside the ProASIC3 timing limits for the selected speed grade and use dedicated clock routing to avoid excessive skew on high-rate interfaces.
Recommandé
Test and Measurement Equipment
The A3P125-TQ144 is appropriate for programmable logic, trigger generation, counter, sequencer, and data-format conversion blocks in test equipment. Its 100 I/O allow simultaneous control of multiple instrument channels, and the internal SRAM can hold acquisition patterns or intermediate results. Use disciplined clocking and constrained I/O timing, and place the FPGA away from high-energy analog and switching sections to reduce coupling into sensitive measurement circuitry.
Recommandé
Signal Conditioning and Interface Conversion
The A3P125-TQ144 can serve as a configurable signal-conditioning front end for parallel data sources, digital sensor arrays, and legacy peripheral interfaces. The 100 user I/O permit multiple independent channels, while flash configuration simplifies field updates to thresholds, timing, and format-conversion logic. Validate every I/O voltage against the selected I/O standard and use series damping or controlled drive strength when driving capacitive loads or long board traces.
Recommandé
Embedded Data Acquisition and Logging
The A3P125-TQ144 supports data-acquisition front ends that combine sensor multiplexing, filtering, trigger control, and local buffering. Its true dual-port SRAM allows simultaneous access by separate logic paths, and the 36,864 bits of flash configuration preserves the acquisition control program across power cycles. In portable instruments, account for the 1.5 V core supply and supply sequencing, and keep precision analog converters on their own quiet power domain to prevent switching and digital-edge noise from degrading readings.
Recommandé
Secure Programmable System Controller
The A3P125-TQ144 can implement a dedicated programmable controller that coordinates boot sequencing, peripheral enables, watchdog behavior, and power-state transitions. Flash-based configuration retains the design through power loss, and the large I/O count allows direct control of board-level management signals. Secure programming and device configuration methods should be applied where firmware intellectual property or update authenticity matters, and the system should include a recovery path for field upgrades.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour A3P125-TQ144 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | A3P125-TQ144I | A3P125-1TQ144 | A3P125-TQG144 | A3P125-TQG144I |
|---|---|---|---|---|---|
| Package | 144-lead TQFP, 0.5 mm pitch | 144-lead TQFP, 0.5 mm pitch | 144-lead TQFP, 0.5 mm pitch | 144-lead TQFP, 0.5 mm pitch | 144-lead TQFP, 0.5 mm pitch |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| FPGA Family | ProASIC3 | ProASIC3 | ProASIC3 | ProASIC3 | ProASIC3 |
| System Gates | 125K | 125K | 125K | 125K | 125K |
| Logic Elements | 1.5K | 1.5K | 1.5K | 1.5K | 1.5K |
| User I/O | 100 | 100 | 100 | 100 | 100 |
| Configuration Flash | 36,864 bits | 36,864 bits | 36,864 bits | 36,864 bits | 36,864 bits |
| Maximum Frequency | 231 MHz | Grade-dependent | Grade-dependent | Grade-dependent | Grade-dependent |
| Core Supply Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
| Process Technology | 130 nm CMOS | 130 nm CMOS | 130 nm CMOS | 130 nm CMOS | 130 nm CMOS |
Principaux différenciateurs
- Same-footprint industrial-grade substitution path (vs A3P125-TQ144I)
- Broad I/O access for board-level integration (vs A3P125-TQG144)
- Field-reconfigurable non-volatile design implementation (vs A3P125-1TQ144)
- Integrated SRAM reduces external logic overhead (vs A3P125-TQG144I)
Notes de conception
Use the manufacturer TQFP-144 mechanical drawing to verify pad dimensions, lead pitch, courtyard, and solder-mask clearance. The 0.5 mm lead pitch requires careful paste-volume control and a stable reflow profile. Avoid mixing the TQFP footprint with the smaller ProASIC3 lead-count variants even when their logic density is identical, because the physical pad arrays differ.
Provide the required 1.5 V core rail with low ripple and place local decoupling at every supply pin. Connect each decoupling capacitor to the device ground through a dedicated via rather than through a shared narrow trace. Separate core, configuration, and I/O supply routing where the device configuration supports separate supplies, and test power-up sequencing against the manufacturer's recommended conditions.
Route clock and high-speed data through the shortest practical paths, keep them away from package perimeter signals that may switch simultaneously, and use the FPGA's dedicated clock inputs where available. For external buses, apply source-series damping when edge rates exceed the board's practical limit, and terminate differential pairs with a geometry-compliant approach rather than ad hoc resistor placement.
Do not assume that every A3P125 ordering suffix is interchangeable. The TQ, TQG, I, and -1 codes identify different device grades that can affect temperature range, speed, qualification, or ordering configuration. Before substitution, compare the complete ordering table, verify the required operating-temperature grade, and confirm that the programmed bitstream is supported by the selected device.
Estimated: at a 1.5 V core supply and 100 mA of core current, core-only dissipation is approximately 0.15 W, calculated as 1.5 V multiplied by 0.1 A. Actual device heating also depends on I/O drive current, dynamic switching activity, and auxiliary rails. Provide thermal-via patterns beneath the package and use a ground reference plane to spread heat into the board.
Informations de conformité
No explicit compliance declarations were identified for this exact ordering code. Confirm RoHS, REACH, lead-free, halogen-free, and conflict-minerals status against the manufacturer's product documentation and the date-of-barement information for the purchased lot.
