CY8C3445AXA-108 - 8-Bit 50MHz PSoC 3 MCU | Infineon
部品番号: CY8C3445AXA-108 ✓ 生産中CY8C3445AXA-108 概要
A programmable system-on-chip, or PSoC, is a mixed-signal semiconductor that integrates a microcontroller core with configurable analog blocks, digital peripherals, and routing fabric. The PSoC family extends the conventional MCU hierarchy by placing programmable signal-conditioning, conversion, and timing functions alongside the processor. This allows one configurable device to replace combinations of separate microcontroller, analog, and interface ICs.
Verified device attributes include an 8051 instruction-set core, 8-bit architecture, 50 MHz maximum operating frequency, and 32 KB (32K x 8) flash memory. The 1.71 V to 5.5 V operating range supports low-voltage embedded systems, while the large 100-pin package provides extensive access to the device's analog, digital, and I/O resources. The CY8C3445 belongs to the CY8C34xx family of CY8C3xxx PSoC 3 devices.
The 100-lead 14 x 14 mm TQFP package is suited to prototypes, control boards, industrial controllers, and measurement equipment that require numerous external connections. Because this device combines programmable analog and digital blocks with general-purpose control logic, firmware configuration, peripheral routing, and external component selection remain central to successful implementation.
Typical uses include industrial sensor-conditioning controllers, analog measurement front ends, motor and power-system control, automotive electronic modules, and embedded human-machine interfaces. Its 50 MHz processing capability supports responsive control loops, while the 32 KB flash memory accommodates application firmware and configuration data.
When designing a board around the CY8C3445AXA-108, verify the exact pin assignment and peripheral multiplexing in the manufacturer datasheet before routing signals. The wide package pin count should not be interpreted as 100 general-purpose I/O pins; many pins provide alternate analog, debug, programming, power, or clock functions. Decoupling, grounding, and unused-pin treatment must follow the manufacturer's board-layout guidance.
This page consolidates verified distributor specifications, pricing references, family-level alternatives, and practical PSoC 3 design considerations so engineers can evaluate the CY8C3445AXA-108 without relying on duplicated distributor descriptions alone.
ドロップイン代替品: CY8C3445AXA-108 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
CY8C3445AXI-108
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →CY8C3445AXA-107
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3445AXA-096
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3445AXI-096
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3444AXA-096
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3445AXA-108 最大定格＆電気的特性
| Device Type | 8-bit Microcontroller IC |
| Product Family | PSoC 3 CY8C34xx |
| Architecture | 8051, 8-bit |
| Maximum Operating Frequency | 50 MHz |
| Flash Memory Size | 32 KB (32K x 8) |
| Operating Voltage Range | 1.71 V to 5.5 V |
| Package Type | 100-TQFP (14 x 14 mm) |
| 実装タイプ | Surface Mount |
| Programmable System-on-Chip | PSoC 3 |
| Core Instruction Set | 8051 |
| Data Word Size | 8-bit |
| Manufacturer | Infineon Technologies |
| Original Product Program | Cypress Semiconductor PSoC 3 |
| Lead Count | 100 pins |
CY8C3445AXA-108 100-tqfp (14 x 14 mm) ピン配置ガイド
CY8C3445AXA-108 (100-tqfp (14 x 14 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: CY8C3445AXA-108.
詳細は データシート をご参照ください。
主な用途
CY8C3445AXA-108 の用途: 6 件s: Industrial Sensor and Signal-Conditioning Controller, Automotive Electronic Control Module, Programmable Analog Measurement Front End, Motor Control and Power-System Supervision, Embedded Human-Machine Interface Controller, Low-Voltage Embedded Control Platform.
Industrial Sensor and Signal-Conditioning Controller
The CY8C3445AXA-108 fits industrial measurement modules that need analog conditioning and digital control on one device. Its PSoC 3 architecture places programmable mixed-signal resources alongside an 8-bit 8051 core running up to 50 MHz, allowing sensor signals to be conditioned and evaluated without relying on a separate analog interface IC. The 32 KB of flash stores control firmware and configuration data, while the 1.71 V to 5.5 V range accommodates low-voltage sensor nodes and industrial rails. In an AXI or industrial-only design, compare CY8C3445AXI-108 to confirm temperature and qualification requirements.
おすすめ
Automotive Electronic Control Module
The CY8C3445AXA-108 is appropriate for automotive electronic modules where the AXA ordering suffix and a high-pin-count mixed-signal controller are required. Its 100-lead 14 x 14 mm TQFP package exposes the PSoC 3 analog, digital, and communication resources needed for actuator monitoring, body electronics, or vehicle interface conditioning. The 50 MHz 8051 core supports deterministic control tasks, while 32 KB of flash accommodates embedded application code. For an industrial rather than automotive deployment, evaluate CY8C3445AXI-108 and review the applicable qualification documents.
おすすめ
Programmable Analog Measurement Front End
The PSoC 3 architecture makes the CY8C3445AXA-108 useful for front ends that combine sensing, amplification, filtering, conversion, and control in a single design. The 8-bit 8051 processor operating up to 50 MHz can supervise calibration and control sequences, while the configurable analog resources reduce the number of discrete signal-chain components. Its 1.71 V to 5.5 V operating range fits both sensor-centric and regulated industrial systems. Exact ADC, amplifier, and comparator capabilities must be confirmed in the CY8C3445 datasheet before fixing the analog architecture.
おすすめ
Motor Control and Power-System Supervision
The CY8C3445AXA-108 can supervise a motor-drive or industrial power system where sensing, control, and communications must share one controller. Its programmable analog and digital blocks can support current, voltage, and position-related signal acquisition, while the 50 MHz 8051 core executes the supervisory control loop. The 100-pin package provides more external connection options than small MCU packages, and the 32 KB flash is sufficient for embedded monitoring and protection logic. Power calculations must be completed separately because the verified data does not include absolute maximum ratings or thermal data.
おすすめ
Embedded Human-Machine Interface Controller
The CY8C3445AXA-108 suits keypad, display, and menu-handling subsystems that require more general-purpose I/O and mixed-signal capability than a small 8-bit MCU. Its 8051 core executes up to 50 MHz for responsive input processing, and 32 KB of flash holds interface firmware, lookup tables, and configuration. The wide 100-lead package leaves pins available for displays, switches, indicators, and analog controls. Firmware development should account for PSoC 3 configuration and routing, while pin multiplexing must be reviewed against the exact peripheral assignment used by the design.
おすすめ
Low-Voltage Embedded Control Platform
The CY8C3445AXA-108 supports compact embedded platforms operating from low-voltage rails because its verified supply range extends down to 1.71 V. This makes it relevant to battery-powered instrumentation, portable measurement equipment, and energy-efficient sensor nodes where a higher-minimum-supply controller would be unsuitable. Its 50 MHz core provides responsive digital control, and the 32 KB flash stores firmware without an external program-memory device. Because the complete peripheral inventory was not present in the verified snippet data, power budget and peripheral availability must be confirmed from the manufacturer documentation.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: CY8C3445AXA-108 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | CY8C3445AXI-108 | CY8C3445AXA-107 | CY8C3445AXA-096 | CY8C3445AXI-096 | CY8C3444AXA-096 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - same | 100-LQFP (14 x 14 mm) - same | 100-LQFP (14 x 14 mm) - same | 100-LQFP (14 x 14 mm) - same | 100-LQFP (14 x 14 mm) - same |
| Device Type | 8-bit PSoC 3 microcontroller | 8-bit PSoC 3 microcontroller | 8-bit PSoC 3 microcontroller | 8-bit PSoC 3 microcontroller | 8-bit PSoC 3 microcontroller | 8-bit PSoC 3 microcontroller |
| CPU Architecture | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit |
| Ordering Suffix | AXA-108 | AXI-108 | AXA-107 | AXA-096 | AXI-096 | AXA-096 |
主な差別化要因
- Exact target-grade ordering option （vs CY8C3445AXI-108)
- Highest ordering-speed configuration in the listed CY8C3445 family alternatives （vs CY8C3445AXA-107)
- Programmable mixed-signal integration reduces separate support devices （vs CY8C3444AXA-096)
設計ノート
Treat the 100-lead 14 x 14 mm TQFP as a fine-pitch mixed-signal layout rather than a general-purpose GPIO device. Follow the manufacturer recommended decoupling and analog-ground or digital-ground topology, and confirm each signal's alternate function through the CY8C3445 pin-muxing tables. Keep sensitive analog routing compact and away from high-current switching paths to limit PSoC coupling.
The verified 1.71 V to 5.5 V range establishes the operating supply envelope, but it does not provide a regulator topology or current budget. Verify core, analog, and I/O current limits from the datasheet before selecting supplies. Use local ceramic decoupling at supply pins and confirm external component tolerances against the accuracy required by the analog measurement path.
Do not assume that all 100 package leads are interchangeable GPIO pins, and do not substitute an AXI, AXA, or different speed suffix without checking qualification and clock limits. PSoC 3 peripherals are configured and routed in software, so a footprint-compatible replacement can still require firmware, timing, and pin-assignment changes. Validate the exact ordering code against the qualification document required by the end market.
Plan the board with a defined analog and digital partitioning, short reference paths, and controlled return currents. Place decoupling and configuration-dependent analog components close to their associated package pins. Because the verified data does not contain thermal resistance or absolute maximum ratings, perform those checks separately before defining copper area or exposed-via patterns under elevated ambient temperature.
コンプライアンス情報
The provided verified snippets identify an automotive-oriented AXA ordering suffix but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These fields therefore remain unknown pending manufacturer compliance documentation.
