Infineon

CY8C3445AXA-108 - 8-Bit 50MHz PSoC 3 MCU | Infineon

MPN: CY8C3445AXA-108 ✓ فعال
1.71 V to 5.5 V Vdss 100-TQFP (14 x 14 mm) Package 50 MHz Speed 32 KB (32K x 8) Memory
حداقل سفارش: 1 |

CY8C3445AXA-108 نمای کلی

The Infineon Technologies CY8C3445AXA-108 is an 8-bit 8051-compatible PSoC 3 programmable system-on-chip with a 50 MHz operating frequency, 32 KB of flash program memory, and a 100-lead TQFP package measuring 14 x 14 mm. It operates from 1.71 V to 5.5 V and combines a microcontroller core with programmable analog and digital resources in a single mixed-signal device.

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.

جایگزین‌های drop-in برای CY8C3445AXA-108 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.

CY8C3445AXI-108

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
Infineon
📦 100-LQFP (14 x 14 mm)
8-bit Microcontroller · PSoC 3 CY8C34 · 8051 · 50 MHz · DC to 50 MHz · 32 KB · 32K x 8 · 4 KB

برای قیمت تماس بگیرید

مشاهده دیتاشیت ←

CY8C3445AXA-107

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 100-LQFP (14 x 14 mm)
Same CY8C3445 family and 32 KB flash configuration in the same 100-lead package; -107 suffix is a lower speed-grade option, so maximum clock performance requires verification

📋 جایگزین مرجع (خارج از کاتالوگ)

CY8C3445AXA-096

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 100-LQFP (14 x 14 mm)
Same CY8C3445 family, 8051 core, and 32 KB flash in the same 100-lead footprint; -096 suffix identifies a different ordering-speed configuration relative to the -108 target

📋 جایگزین مرجع (خارج از کاتالوگ)

CY8C3445AXI-096

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 100-LQFP (14 x 14 mm)
Shares the CY8C3445 family, 100-lead footprint, and 32 KB flash; differs from AXA-108 in both industrial/automotive ordering suffix and -096 speed configuration

📋 جایگزین مرجع (خارج از کاتالوگ)

CY8C3444AXA-096

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 100-LQFP (14 x 14 mm)
Adjacent CY8C34xx device in the same 100-lead package family; resource allocation differs from CY8C3445 and the -096 suffix indicates a different ordering-speed configuration

📋 جایگزین مرجع (خارج از کاتالوگ)

CY8C3445AXA-108 حداکثر مقادیر مجاز و مشخصات الکتریکی

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)
نوع نصب 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

راهنمای پیکربندی پین CY8C3445AXA-108 100-tqfp (14 x 14 mm)

پیکربندی پین برای CY8C3445AXA-108 (پکیج 100-tqfp (14 x 14 mm)). این IC دیجیتال شامل GPIO، رابط‌های ارتباطی (UART، SPI، I2C) و پین‌های تغذیه است. برای عملکردهای جایگزین پین و گزینه‌های پیکربندی به دیتاشیت سازنده مراجعه کنید. ضروری برای طراحی سیستم‌های نهفته و چیدمان PCB.

نمودار پین‌آوت پکیج 100-tqfp (14 x 14 mm) برای CY8C3445AXA-108

داده پین‌آوت تفصیلی موجود نیست برای CY8C3445AXA-108.

به دیتاشیت برای پیکربندی کامل پین‌ها.

کاربردهای معمول

CY8C3445AXA-108 مناسب است برای 6 کاربردs: 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.

🚗

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.

🔧

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.

⚡

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.

📺

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.

🔋

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.

خلاصه محصولات پیشنهادی

PCA9555DWR Texas Instruments استفاده‌شده در: Industrial Sensor and Signal-Conditioning Controller, Low-Voltage Embedded Control Platform SI4136-F-GTR Silicon Labs استفاده‌شده در: Industrial Sensor and Signal-Conditioning Controller NE5534DR Texas Instruments استفاده‌شده در: Industrial Sensor and Signal-Conditioning Controller, Programmable Analog Measurement Front End SP490EN-L/TR MaxLinear استفاده‌شده در: Automotive Electronic Control Module PCA9554DBR Texas Instruments استفاده‌شده در: Automotive Electronic Control Module TCA4311DR Texas Instruments استفاده‌شده در: Automotive Electronic Control Module SI4113-D-GTR Skyworks Solutions استفاده‌شده در: Programmable Analog Measurement Front End MC3486DR Texas Instruments استفاده‌شده در: Programmable Analog Measurement Front End LM258DR STMicroelectronics استفاده‌شده در: Motor Control and Power-System Supervision LM324DR Texas Instruments استفاده‌شده در: Motor Control and Power-System Supervision SP490CN-L/TR MaxLinear استفاده‌شده در: Motor Control and Power-System Supervision PCA9536DR Texas Instruments استفاده‌شده در: Embedded Human-Machine Interface Controller PCA9517DR Texas Instruments استفاده‌شده در: Embedded Human-Machine Interface Controller ATMEGA328P-MUR Microchip Technology استفاده‌شده در: Embedded Human-Machine Interface Controller ATTINY20-XUR Microchip Technology استفاده‌شده در: Low-Voltage Embedded Control Platform SI4123-D-GTR Skyworks Solutions استفاده‌شده در: Low-Voltage Embedded Control Platform
What are the key specifications of CY8C3445AXA-108 that engineers should know?
The CY8C3445AXA-108 is an 8-bit PSoC 3 microcontroller with a 50 MHz operating frequency, 32 KB of flash memory, a 1.71 V to 5.5 V supply range, and a 100-lead 14 x 14 mm TQFP package. Verified distributor listings identify its 8051 core and CY8C34xx family membership. According to the Infineon product and distributor records retrieved on 2026-10-30, it also combines a programmable microcontroller with mixed-signal resources rather than operating as a conventional general-purpose MCU.
What is the operating voltage of CY8C3445AXA-108?
The CY8C3445AXA-108 operates from 1.71 V to 5.5 V. This range is explicitly listed by Mouser in the verified component data retrieved on 2026-10-30. The wide voltage span supports both low-voltage portable equipment and higher-voltage industrial control boards, although the selected external supply, I/O thresholds, and internal configuration must remain within the limits defined by the manufacturer datasheet.
How much flash memory does CY8C3445AXA-108 have?
The CY8C3445AXA-108 contains 32 KB of flash program memory, organized as 32K x 8. DigiKey's verified listing describes the device as an 8051 PSoC 3 CY8C34xx microcontroller with 32 KB flash. The flash provides storage for application firmware and PSoC configuration data, while the internal SRAM size and any external-memory interface require confirmation from the manufacturer datasheet.
What is the maximum operating frequency of CY8C3445AXA-108?
The CY8C3445AXA-108 supports operation up to 50 MHz. This frequency appears in the verified DigiKey, Mouser, and LCSC product descriptions retrieved on 2026-10-30. In a PSoC 3 design, the operating configuration and peripheral clocking should follow the datasheet guidance, and the maximum clock rate should not be treated as a guarantee that every analog block or high-speed digital function can run at that same rate.
What package does CY8C3445AXA-108 use?
The CY8C3445AXA-108 is supplied in a 100-lead TQFP package measuring 14 x 14 mm. The verified DigiKey listing identifies the package as 100-TQFP (14 x 14), while LCSC describes it as an LQFP-100. The package provides a high pin count for PSoC routing and external analog or digital connections, but board design must account for its fine lead pitch and thermal requirements.
Where can I download the CY8C3445AXA-108 datasheet PDF?
The CY8C3445AXA-108 datasheet is available through the Infineon product documentation and the Octopart datasheet index. The verified Octopart source is https://octopart.com/datasheet/cypress-semiconductor/CY8C3445AXA-108, and a linked manufacturer-style PDF endpoint is provided in this record. Confirm the document revision and device suffix against the exact part number before using pin assignments or electrical limits in a layout.
Where can I find the CY8C3445AXA-108 pinout?
The authoritative CY8C3445AXA-108 pinout is found in the manufacturer datasheet's pin-description and package-drawing sections. The Octopart datasheet index at https://octopart.com/datasheet/cypress-semiconductor/CY8C3445AXA-108 provides access to the relevant documentation. Because this record's verified snippets do not enumerate all 100 terminal functions, individual pin names have not been reproduced here; use the datasheet and CY8C34xx pin-muxing tables for PCB routing.
Where to buy CY8C3445AXA-108 online?
The CY8C3445AXA-108 is available through authorized distribution channels including DigiKey, Mouser, LCSC, and Rochester Electronics via DigiKey Marketplace. The verified DigiKey listing states that the part ships today, and LCSC lists a starting price of $0.2932. As of 2026-10-30, buyers should confirm live inventory, authorized-channel status, date code, and lot traceability before placing an order.
What is the price of CY8C3445AXA-108?
The verified LCSC listing shows a starting price of $0.2932 for the CY8C3445AXA-108 as of 2026-10-30. The same listing identifies the component as in stock, but price, currency, quantity breaks, and inventory can change without notice. The quantity tiers in this record therefore preserve the verified reference price rather than inventing unverified volume discounts.
What is the lead time for CY8C3445AXA-108?
The verified DigiKey listing states that the CY8C3445AXA-108 ships today, indicating no long factory lead time was advertised when the data was retrieved on 2026-10-30. However, a fixed lead-time commitment requires a current distributor quotation. Confirm quantity availability and any manufacturer or distribution-channel allocation before committing the date to a production schedule.
Is CY8C3445AXA-108 in stock?
Yes, the verified LCSC page lists the CY8C3445AXA-108 as in stock, and DigiKey describes the part as available to ship. These statements were current on 2026-10-30 and can change rapidly. For a production order, request a current stock confirmation and verify authorized sourcing, date code, and packaging condition for the exact 100-lead TQFP configuration.
What is the difference between CY8C3445AXA-108 and CY8C3445AXI-108?
The two parts belong to the same CY8C3445 PSoC 3 family and share the 100-lead package format, but their ordering suffixes indicate different qualification or temperature grades. The AXA-108 target is the automotive-oriented suffix used in the requested MPN, while AXI-108 denotes the industrial suffix. Exact temperature limits and qualification documents should be compared in the manufacturer datasheet before treating one as a drop-in substitute.
What can replace CY8C3445AXA-108?
The closest same-family replacements are CY8C3445AXI-108, CY8C3445AXA-107, CY8C3445AXA-096, and CY8C3445AXI-096, subject to matching the required speed grade, temperature grade, memory configuration, and qualification. These are Infineon family variants rather than independent cross-brand substitutes. Firmware, clocks, peripherals, and pin multiplexing should be revalidated because a suffix change can alter qualification or performance limits even when the footprint matches.
When should I choose CY8C3445AXA-108 over CY8C3445AXI-108?
Choose the CY8C3445AXA-108 when the design specifically calls for the AXA automotive-ordering suffix and its associated qualification profile. Choose CY8C3445AXI-108 for an industrial-temperature or industrial-qualification requirement. Both use the same family architecture and 100-lead package, so the decision is primarily qualification, temperature, lifecycle, and sourcing rather than basic processor performance; verify the exact suffix definitions in the manufacturer data.
Is the CY8C3445AXA-108 suitable for an industrial sensor controller?
The CY8C3445AXA-108 is suitable for a programmable sensor controller when the system's voltage, temperature, qualification, and analog requirements match the AXA grade. Its 8051 core, 50 MHz maximum frequency, 32 KB flash, and programmable mixed-signal resources support sensing, conditioning, and control functions. The AXI suffix should be considered when industrial qualification rather than the AXA automotive suffix is the governing requirement.
What is the best Infineon equivalent for CY8C3445AXA-108?
The closest Infineon equivalent is CY8C3445AXI-108 because it shares the CY8C3445 device family, 8051 architecture, 32 KB flash configuration, and 100-lead package format. The primary distinction is the ordering suffix and associated qualification or temperature profile. The verified cross-reference results did not establish a cross-brand pin-compatible replacement, so engineers should treat the AXI part as a controlled family substitution rather than a third-party drop-in.

داده‌های مرجع مهندسی برای CY8C3445AXA-108 — مقایسه، راهنمای طراحی و اطلاعات انطباق.

راهنمای انتخاب

Choose the CY8C3445AXA-108 when the design requires the exact AXA-108 ordering configuration, a 50 MHz 8-bit PSoC 3 controller, 32 KB of flash, a 1.71 V to 5.5 V supply range, and a 100-lead 14 x 14 mm TQFP footprint. Select CY8C3445AXI-108 when an industrial ordering suffix is appropriate and the temperature or qualification profile matches. Use the -107 or -096 family variants only after confirming the required clock rate and peripheral timing. Consider CY8C3444AXA-096 only when its reduced or altered resource set is acceptable. Because no cross-brand pin-compatible substitute was established in the verified cross-reference data, changing manufacturers requires a full firmware, analog-routing, package, and qualification review rather than a simple footprint substitution.

مقایسه با جایگزین‌ها

پارامتر این محصول 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

تفاوت‌های کلیدی

  • Exact target-grade ordering option (در مقابلCY8C3445AXI-108)
  • Highest ordering-speed configuration in the listed CY8C3445 family alternatives (در مقابلCY8C3445AXA-107)
  • Programmable mixed-signal integration reduces separate support devices (در مقابلCY8C3444AXA-096)

یادداشت‌های طراحی

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.

اطلاعات انطباق

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
بدون سرب
Unknown
بدون هالوژن
Unknown
مواد معدنی درگیری
Unknown

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.

تاریخ تأیید داده‌ها: 2026-10-30 — داده‌ها توسط تیم مهندسی قطعات XAIPART تأیید و گردآوری شده است

جستجوهای مرتبط

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قطعات و اصطلاحات مرتبط

Infineon Technologies CY8C3445AXA-108 CY8C3445AXI-108 CY8C3445AXA-107 CY8C3445AXA-096 CY8C3445AXI-096 CY8C3444AXA-096 PSoC 3 CY8C34xx 8051 microcontroller 8-bit microprocessor mixed-signal semiconductor programmable system-on-chip 32 KB flash memory 50 MHz clock 1.71 V to 5.5 V power supply 100-lead TQFP LQFP-100 14 x 14 mm package programmable analog block programmable digital peripheral pin multiplexing surface mount industrial sensor control automotive electronic control
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