A54SX16P-TQG144I - 16K Gates SX FPGA 144-TQFP | Microsemi
MPN： A54SX16P-TQG144I ✗ 停產A54SX16P-TQG144I 概覽
An FPGA (field programmable gate array) is a semiconductor device containing a fabric of configurable logic blocks (CLBs) and programmable interconnects that the designer configures after manufacturing, sitting within the broader hierarchy of programmable logic alongside CPLDs, structured ASICs, and ASSPs. The SX family uses a sea-of-modules architecture that simplifies design, reduces cost and power, and shortens time to market for performance-intensive applications.
Key features of the A54SX16P include dual-rail operation (core supply 3V to 3.6V and 4.75V to 5.25V per distributor data), industrial temperature range of -40C to +85C (the I suffix), and 113 user-programmable I/O. The 0.35 um antifuse-style process family delivers deterministic routing with low jitter, well suited to glue logic replacement, bus interfacing, and control-plane functions. The PQ (performance) speed variant targets the 240 MHz class of the SX family per Jotrin listing data.
The SX architecture organizes logic into logic array blocks (LABs/CLBs), with Microchip USA reporting 1452 logic modules for this density class and 113 user I/O in the 144-TQFP. Programming is one-time, giving design security advantages over SRAM FPGAs - the bitstream cannot be read back - which historically made SX devices popular in military, aerospace, and industrial designs where IP protection matters.
Typical applications include legacy industrial control systems, telecommunications line-card glue logic, embedded bus bridging, and aerospace/defense sub-systems where the design is already qualified and an exact-form-fit-function replacement is required. The industrial -40C to +85C rating supports harsh-environment deployments.
Design consideration: because SX devices are one-time programmable, reserve spare logic margin (target under 80% utilization) and validate timing at corner temperature before programming; the commercial (no-I) A54SX16P-TQG144 cannot substitute in an industrial -40C to +85C application.
This page synthesizes distributor listings, verified specifications, drop-in same-package alternatives, and practical design guidance not found in the manufacturer datasheet, helping engineers source and qualify this mature Microsemi/Microchip FPGA.
直接替換替代品，適用於 A54SX16P-TQG144I — 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： A54SX16P-TQG144I （相同外形與佔位） — 差異在於 Family, Operating Temperature, Package, Speed Grade, System Gates.
A54SX16P-1TQG144I
✅ 直接替換聯絡詢價
查看資料表 →A54SX16P-2TQG144I
✅ 直接替換聯絡詢價
查看資料表 →A54SX16P-TQG144
✅ 直接替換聯絡詢價
查看資料表 →A54SX16P-1TQG144
✅ 直接替換聯絡詢價
查看資料表 →A54SX16P-2TQG144
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-TQG144I
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX16P-TQG144I 最大額定值與電氣特性
| Manufacturer | Microsemi Corporation (Microchip Technology) |
| Family | SX (SX FPGA Family) |
| Number of Gates | 16000 gates |
| Number of Logic Cells | 924 cells |
| User I/O | 113 |
| Maximum System Frequency | 240 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| I/O Voltage Support | 3.3 V / 5 V |
| 封裝 | 144-TQFP (20x20 mm) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C |
| Temperature Grade | Industrial (I suffix) |
| Speed Grade | Standard (P performance variant) |
| Packaging | Tray |
| Programming Technology | One-time programmable (antifuse-family SX architecture) |
A54SX16P-TQG144I 144-tqfp (20x20 mm) 腳位配置指南
A54SX16P-TQG144I（144-tqfp (20x20 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： A54SX16P-TQG144I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX16P-TQG144I 適用於 6 應用s: Legacy Industrial Control Systems, Telecommunications Line-Card Glue Logic, Aerospace and Defense Subsystems, Embedded Bus Bridging and Interface Conversion, Test and Measurement Instrument Repair, Security and Surveillance Controller Boards.
Legacy Industrial Control Systems
The A54SX16P-TQG144I fits industrial control and factory automation platforms that standardized on SX FPGAs decades ago and require exact form-fit-function replacement. Its -40C to +85C industrial rating and 113 dual-standard 3.3V/5V I/O allow direct interfacing with legacy PLC backplanes and 5V TTL sensors without level shifters. The one-time-programmable configuration cannot be corrupted by brownouts or EMI events common on factory floors, improving field reliability versus SRAM FPGAs. Placed as the main sequencer or bus controller, it sustains the original 240 MHz-class timing with zero PCB changes, protecting the substantial requalification cost of replacing an embedded controller board.
推薦
Telecommunications Line-Card Glue Logic
Telecom line cards historically used SX FPGAs to bridge proprietary ASIC interfaces to backplane buses. The A54SX16P-TQG144I's 924 logic cells and 113 I/O provide exactly the glue capacity needed for address decoding, bus multiplexing, and interrupt aggregation at line-card speeds well within the 240 MHz family limit. Its 3.3V core and 5V-tolerant I/O ring match legacy -48V-powered card architectures that still run 5V TTL signaling. Because the device is one-time programmable, configuration is instantly available at power-up with no external configuration flash, reducing BOM count and boot latency on hot-swappable cards. Drop-in speed-grade variants preserve the original footprint during spares provisioning.
推薦
Aerospace and Defense Subsystems
Defense and avionics programs that qualified SX FPGAs during original design-in continue to specify the A54SX16P-TQG144I because its antifuse-style one-time-programmable configuration is inherently resistant to configuration upset and cannot be read back - a design-security requirement in military platforms. The industrial -40C to +85C range covers many avionics bay environments, and the 144-TQFP surface-mount package survives vibration-qualified assembly processes. The device serves as state machines, Mil-STD bus interface logic, and redundancy voting logic. Because redesign of qualified hardware requires costly re-certification, sourcing original SX silicon through excess inventory is preferred over migration to modern FPGA families.
推薦
Embedded Bus Bridging and Interface Conversion
The A54SX16P-TQG144I is well suited to bridging legacy buses such as VME, ISA-style local buses, or parallel peripheral interfaces to modern controllers. Its dual 3V-3.6V core and 4.75V-5.25V I/O supplies let one device span 5V TTL host sides and 3.3V peripheral sides without external translation. With 113 bidirectional I/O, a single TQFP-144 replaces dozens of 74-series buffers, latches, and PALs, cutting board area and assembly cost. Deterministic one-time-programmed routing gives fixed pin-to-pin propagation delays, simplifying setup/hold analysis on asynchronous bus transactions. Speed-grade variants (A54SX16P-1/2TQG144I) cover designs needing extra timing margin at the same footprint.
推薦
Test and Measurement Instrument Repair
Bench instruments, ATE fixtures, and custom test racks built in the 1990s and 2000s frequently embed SX FPGAs for timing generation and pattern sequencing. The A54SX16P-TQG144I enables board-level repair of these assets with original silicon, preserving the factory-programmed bitstream and calibration-correlated timing. The 240 MHz-class family performance and 113 I/O reproduce original stimulus/timing accuracy, while one-time programming guarantees the replacement behaves identically on power-up with zero configuration latency - important in sequencer roles where a missed cycle corrupts a test. Sourcing the industrial I-suffix extends reliable operation in non-conditioned lab environments with wide ambient swings.
推薦
Security and Surveillance Controller Boards
Older security and video surveillance controller designs used SX FPGAs for camera synchronization, parallel video framing, and alarm logic. The A54SX16P-TQG144I's 16K gates and 924 cells accommodate frame counters, sync generators, and alarm state machines, while the 5V-tolerant I/O ring directly drives legacy CCD camera timing buses and relay drive buffers. One-time programming ensures the security logic cannot be reconfigured by an attacker through any configuration interface - a meaningful hardening property versus SRAM FPGAs whose bitstreams can be intercepted at boot. The industrial temperature rating supports outdoor enclosures from -40C to +85C without convection heating, preserving original mechanical designs.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX16P-TQG144I — 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 | A54SX16P-1TQG144I | A54SX16P-TQG144 | A54SX16A-TQG144I |
|---|---|---|---|---|
| Package | 144-TQFP (20x20 mm) | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same | 144-TQFP (20x20 mm) - same |
| Brand | Microsemi | Microsemi | Microsemi | Microchip Technology |
| Gate Density | 16000 gates | 16000 gates | 16000 gates | 16000 gates (SX-A) |
| User I/O | 113 | 113 | 113 | 113 |
| Speed Grade | Standard | -1 (faster) | Standard | Standard (SX-A, faster process) |
| Operating Temperature | -40C to +85C | -40C to +85C | 0C to +70C (commercial) | -40C to +85C |
| Process Technology | 0.35 um | 0.35 um | 0.35 um | SX-A finer process |
| Bitstream Compatibility | Reference | Yes (same family, re-run timing) | Yes (identical die) | No - requires re-compile |
主要差異化特點
- Faster speed grade available as pin-identical upgrade (對比A54SX16P-1TQG144I)
- Industrial temperature rating (對比A54SX16P-TQG144)
- Original-family design security and power-up immediacy (對比A54SX16A-TQG144I)
- Dual 3.3V/5V I/O capability in a single device (對比Modern low-voltage FPGAs (e.g., A3PE600-2FGG484))
設計說明
The A54SX16P-TQG144I requires two independent rails: 3V to 3.6V core and 4.75V to 5.25V I/O. Power both rails from regulated LDOs or buck converters with at least 0.1 uF ceramic decoupling per power/ground pin pair plus bulk capacitance (10 uF to 22 uF) near the package. Observe power-up: bring rails up monotonically; SX devices tolerate either rail first, but slow, non-monotonic ramps on the 3.3V rail can cause excessive inrush through the I/O ESD structures. Verify total core current against the SX family datasheet current tables for your utilization level.
SX devices are one-time programmable: a programming error or a design at greater than roughly 80% routing utilization cannot be reworked on the same physical part. Before programming, complete static timing analysis at -40C and +85C corners in the Microchip/Libero toolchain, and reserve spare modules for ECO fixes. Do not substitute the commercial A54SX16P-TQG144 (0C to +70C) into an industrial -40C to +85C socket even though it is pin-identical - timing derates outside the commercial range are not guaranteed by the datasheet.
With a 5V I/O ring, output edge rates on heavily loaded buses can produce reflections on long traces; keep 5V I/O trace lengths short and consider series termination (22 to 33 ohm) on clock and strobe outputs. Group 5V-tolerant and 3.3V I/O assignments into their respective banks per the SX pinout tables, and return each bank's ground through adjacent GND pins. Avoid sharing the programming pins with switching signals, since fixture access to programming pads is needed during production programming of this OTP device.
Estimated: thermal performance of the 144-TQFP (20x20 mm) depends on airflow and board copper, per the SX-A family datasheet thermal section. As a design estimate, at moderate core utilization the junction rise above ambient is typically tens of degrees C on a 4-layer board with ground pour; confirm against the datasheet theta_JA tables for your airflow condition and keep Tj within the absolute maximum rating at +85C ambient. Avoid fully-populated, thermally-constrained sealed enclosures without airflow verification.
合規資訊
This is a mature Microsemi SX-family FPGA; RoHS/REACH status for the exact ordering code was not present in the verified web data and must be confirmed with the supplier. AEC-Q100 is not applicable as this is a commercial/industrial FPGA, not an automotive-qualified part.
