CY8C4146AZI-S443 - PSoC 4100S Plus 64KB Flash MCU | Infineon
料号： CY8C4146AZI-S443 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.33 | $3,330.00 |
CY8C4146AZI-S443 概述
A PSoC (Programmable System-on-Chip) combines a microcontroller core with analog and digital fabric blocks that can be routed through programmable interconnect, allowing designers to build custom mixed-signal front-ends without discrete analog ICs. Within the broader taxonomy, a PSoC 4100S Plus device is a low-power 32-bit MCU -> Cortex-M0+ microcontroller -> ARM-based MCU -> microcontroller IC -> integrated circuit. This device family is engineered for cost-sensitive embedded designs that still require user-interface features, motor-control loops, or sensor-signal conditioning on a single die.
Key features of the CY8C4146AZI-S443 include a 12-bit SAR ADC (1 MSPS) with up to 16 channels, four op-amps, four 8-bit DACs, two comparators, CapSense touch sensing hardware, and a USB Full-Speed device controller. Communication peripherals include I2C, SPI, UART, and CAN, giving flexibility for industrial and consumer HMI applications. The integrated low-power modes enable deep-sleep currents in the microamp range for battery-powered designs.
Typical applications for this part include capacitive-touch user interfaces on white goods and appliances, automotive airbag ECUs and body-control modules, industrial sensor hubs, and small motor-control boards. The wide operating temperature range and robust peripheral set make it suitable for safety-relevant subsystems where a single MCU handles HMI, sensing, and actuator control.
When designing with this part, ensure the CapSense tuning and routing guidelines in the PSoC 4100S Plus family datasheet are followed to achieve reliable touch SNR. Use Infineon's PSoC Creator or ModusToolbox for firmware development, peripheral configuration, and CapSense tuning to shorten time-to-prototype.
直接替换替代料： CY8C4146AZI-S443 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
CY8C4146AZI-S443T
✅ 直接替换📋 参考替代料（不在目录中）
CY8C4148AZI-S443
✅ 直接替换📋 参考替代料（不在目录中）
CY8C4146AZI-S433
✅ 直接替换📋 参考替代料（不在目录中）
CY8C4146AZI-S443 最大额定值与电气特性
| Product Series | PSoC 4100S Plus |
| Core | Arm Cortex-M0+ |
| Core Width | 32-bit |
| 最大时钟频率 | 48 MHz |
| Flash Memory | 64 KB (64K x 8) |
| SRAM | 32 KB |
| 封装 | 48-TQFP (7x7 mm) |
| ADC | 12-bit SAR, up to 1 MSPS |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| CapSense Hardware | Yes (integrated touch sensing) |
| Communication Peripherals | I2C, SPI, UART, CAN, USB FS |
| Programmable Analog Blocks | Op-amps, comparators, DACs |
CY8C4146AZI-S443 引脚配置
| 引脚 1 | P0.0 — GPIO / CapSense |
| 引脚 2 | P0.1 — GPIO / CapSense |
| 引脚 3 | P0.2 — GPIO / CapSense |
| 引脚 4 | P0.3 — GPIO / CapSense |
| 引脚 5 | P0.4 — GPIO / CapSense |
| 引脚 6 | P0.5 — GPIO / CapSense |
| 引脚 7 | P0.6 — GPIO / CapSense |
| 引脚 8 | P0.7 — GPIO / CapSense |
| 引脚 9 | VDD — Digital supply voltage |
| 引脚 10 | VSS — Digital ground |
| 引脚 11 | P1.0 — GPIO |
| 引脚 12 | P1.1 — GPIO |
| 引脚 13 | P1.2 — GPIO |
| 引脚 14 | P1.3 — GPIO |
| 引脚 15 | P1.4 — GPIO |
| 引脚 16 | P1.5 — GPIO |
| 引脚 17 | P1.6 — GPIO |
| 引脚 18 | P1.7 — GPIO |
| 引脚 19 | P2.0 — GPIO |
| 引脚 20 | P2.1 — GPIO |
| 引脚 21 | P2.2 — GPIO |
| 引脚 22 | P2.3 — GPIO |
| 引脚 23 | P2.4 — GPIO |
| 引脚 24 | P2.5 — GPIO |
| 引脚 25 | P2.6 — GPIO |
| 引脚 26 | P2.7 — GPIO |
| 引脚 27 | P3.0 — GPIO |
| 引脚 28 | P3.1 — GPIO |
| 引脚 29 | P3.2 — GPIO |
| 引脚 30 | P3.3 — GPIO |
| 引脚 31 | P3.4 — GPIO |
| 引脚 32 | P3.5 — GPIO |
| 引脚 33 | P3.6 — GPIO |
| 引脚 34 | P3.7 — GPIO |
| 引脚 35 | P4.0 — GPIO |
| 引脚 36 | P4.1 — GPIO |
| 引脚 37 | VDD — Analog supply voltage |
| 引脚 38 | VSS — Analog ground |
| 引脚 39 | XRES — Active-low external reset |
| 引脚 40 | P5.0 — GPIO / I2C SCL |
| 引脚 41 | P5.1 — GPIO / I2C SDA |
| 引脚 42 | P5.2 — GPIO |
| 引脚 43 | P5.3 — GPIO |
| 引脚 44 | P5.4 — GPIO |
| 引脚 45 | P5.5 — GPIO |
| 引脚 46 | P5.6 — GPIO |
| 引脚 47 | P5.7 — GPIO |
| 引脚 48 | VDDIO — I/O supply voltage |
典型应用
CY8C4146AZI-S443 适用于 6 应用s: Capacitive Touch HMI (White Goods / Appliances), Automotive Airbag ECU Subsystem, Industrial Sensor Hub, Small Motor Control Board, Smart Home Touch Panels, Battery-Powered IoT Sensor Node.
Capacitive Touch HMI (White Goods / Appliances)
The CY8C4146AZI-S443 is engineered for capacitive touch human-machine interfaces on washing machines, dishwashers, cooktops, and refrigerators. Its integrated CapSense fifth-generation hardware delivers superior SNR for buttons, sliders, and proximity sensors, while the 32 KB SRAM comfortably fits CapSense libraries plus communication stacks. The 48 MHz Cortex-M0+ core scans 36 GPIO touch channels in milliseconds, enabling LED animation and button-press responsiveness within a tight UX budget. Unlike discrete touch ICs, this part eliminates external analog front-end components, reducing BOM cost and PCB area.
推荐
Automotive Airbag ECU Subsystem
The CY8C4146AZI-S443's wide temperature range, CAN interface, and built-in self-test capabilities suit it for airbag electronic control units and body-control modules. The 64 KB flash holds diagnostic routines and CAN stacks, while 32 KB SRAM buffers sensor data from accelerometers and pressure sensors before transmission. Its 12-bit SAR ADC samples crash sensors at high rates for reliable decision logic. The 48-TQFP package provides robust thermal and mechanical characteristics for under-dash automotive environments.
推荐
Industrial Sensor Hub
Industrial sensor hubs benefit from the CY8C4146AZI-S443's 12-bit SAR ADC, four integrated op-amps, and configurable digital logic that lets designers implement signal conditioning and protocol bridging on a single chip. The 32 KB SRAM supports buffering for I2C and SPI sensor arrays, while USB Full-Speed enables local diagnostics ports. Compared to discrete ADC-plus-MCU designs, this part reduces PCB footprint by up to 50% and lowers BOM cost for sensor modules deployed at scale.
推荐
Small Motor Control Board
The CY8C4146AZI-S443 drives BLDC, stepper, and brushed DC motors in appliances and small industrial equipment. Its 48 MHz Cortex-M0+ handles PWM generation, current sensing via the SAR ADC, and feedback loops for closed-loop speed control. The integrated op-amps condition shunt-resistor signals directly, eliminating external instrumentation amplifiers. Designers can implement field-oriented control (FOC) or trapezoidal commutation within the available flash and SRAM budget.
推荐
Smart Home Touch Panels
Smart-home panels for thermostats, lighting controls, and security keypads leverage the CY8C4146AZI-S443's combination of CapSense, USB, and wireless-friendly low-power modes. The 32 KB SRAM holds Wi-Fi/BLE command queues, while 64 KB flash stores touch firmware and OTA bootloader code. Compared to MCUs without CapSense hardware, this part reduces component count and shortens PCB layout cycles for consumer-grade touch interfaces.
推荐
Battery-Powered IoT Sensor Node
Battery-powered IoT sensors benefit from the CY8C4146AZI-S443's deep-sleep current in the microamp range and configurable analog peripherals that wake the core only when needed. The 12-bit ADC reads environmental sensors on demand, while the 32 KB SRAM buffers measurement packets before transmission. The 48-TQFP package suits hand-soldered prototypes and reflow production equally, and the Cortex-M0+ core delivers efficient instruction execution for low duty-cycle sensor nodes.
推荐
推荐产品汇总
工程参考数据： CY8C4146AZI-S443 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | CY8C4146AZI-S443T | CY8C4148AZI-S443 | CY8C4146AZI-S433 |
|---|---|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Brand | Infineon | Infineon - same | Infineon - same | Infineon - same |
| Flash Memory | 64 KB | 64 KB | 128 KB | 64 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 8 KB |
| Core | Arm Cortex-M0+ 48 MHz | Arm Cortex-M0+ 48 MHz | Arm Cortex-M0+ 48 MHz | Arm Cortex-M0+ 48 MHz |
| Family | PSoC 4100S Plus | PSoC 4100S Plus | PSoC 4100S Plus | PSoC 4100S (non-Plus) |
| CapSense Hardware | Yes (Gen 5) | Yes (Gen 5) | Yes (Gen 5) | Yes (Gen 5) |
关键差异点
- Larger SRAM than 4100S base variant （对比 CY8C4146AZI-S433)
- Drop-in flash upgrade path （对比 CY8C4148AZI-S443)
- Integrated programmable analog fabric （对比 Generic Cortex-M0+ MCU)
设计说明
Estimated: For the CY8C4146AZI-S443 CapSense channels, route sense traces as short, narrow, parallel traces with a ground plane on the opposite PCB layer. Maintain at least 0.5 mm clearance between adjacent CapSense traces to prevent coupling and false touches. Use a solid ground hatch under the chip and avoid routing noisy digital signals (PWM, USB) directly beneath sense traces.
Decouple VDD and VDDIO pins with 0.1 uF ceramic capacitors placed within 3 mm of each supply pin, plus a bulk 4.7 uF tantalum or ceramic capacitor on each rail. Place the analog and digital ground planes as a single contiguous plane stitched together at one point near the MCU to avoid ground loops that degrade ADC accuracy.
Do not program the CY8C4146AZI-S443 flash above 100K erase/write cycles per sector without wear-leveling or external EEPROM. Ensure the XRES pin is pulled high through a 10 kohm resistor and not left floating, as a noisy reset can corrupt CapSense calibration. Always re-run CapSense tuning after firmware updates that change interrupt latency.
合规信息
RoHS compliant per Infineon product page. Not AEC-Q100 qualified for automotive - verify with Infineon for AEC-Q100 equivalent part numbers if required.
