CY8C4246AZI-M445 - 48MHz PSoC 4200M MCU, 64KB Flash | Infineon
料号： CY8C4246AZI-M445 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.94 | $1,470.00 |
| 1,000 | $2.52 | $2,520.00 |
CY8C4246AZI-M445 概述
A Programmable System-on-Chip (PSoC) is a mixed-signal MCU that combines an ARM Cortex-M core with configurable analog and digital Universal Digital Blocks (UDBs), allowing designers to instantiate peripherals such as PWMs, UARTs, and timers in firmware rather than committing to fixed silicon peripherals. PSoC devices sit in the wider hierarchy of microcontrollers -> MCUs -> embedded processors -> semiconductors. This flexibility distinguishes PSoC from fixed-peripheral MCUs and is the reason PSoC 4200M devices dominate capacitive-touch and motor-control subsystems where a hardware base must include mixed-signal front-ends alongside the CPU.
The CY8C4246AZI-M445 includes integrated programmable analog front-ends, two IDACs, two VDACs, four op-amps, four comparators, and four configurable switch-cap blocks (SCs), enabling direct sensor signal paths on the same die. The -M445 ordering code specifically configures internal routing targeting FOC (field-oriented control of BLDC) and PFC (power-factor correction) firmware libraries, making this part especially suited for motor-control designs.
Typical applications include BLDC/PMSM motor control for HVAC compressors, fan control, pumps, and home appliances; IoT edge nodes; smart sensors; lighting control; and human-machine interface (HMI) with CapSense. The wide operating voltage and temperature make this device suitable for both industrial and consumer product lines.
When designing with the CY8C4246AZI-M445, pay attention to the configurable analog block routing, ensure the SWD/JTAG programming header is accessible, and follow Infineon's PSoC Creator / ModusToolbox schematic-capture guidelines for the analog routing fabric. Decouple your supply with 100 nF + 1 uF close to each VDD pin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
直接替换替代料： CY8C4246AZI-M445 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： CY8C4246AZI-M445 （相同外形与封装尺寸） ——差异在于 Core, ADC, Operating Temperature Range, Programmable Analog Blocks, SRAM.
快速对比工具——选择替代料号进行并排对比：
CY8C4247AZI-M445
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY8C4245AZI-M445
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY8C4246AZI-M433
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY8C4246PVI-D44
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY8C4246AZI-M365
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY8C4246AZI-M445 最大额定值与电气特性
| Core | ARM Cortex-M0 |
| Core Width | 32-bit |
| 最大时钟频率 | 48 MHz |
| Program Memory Size | 64 kB Flash |
| RAM Size | 8 kB SRAM |
| 工作电源电压 | 1.71 V to 3.6 V |
| 工作温度范围 | -40C to +105C (industrial) |
| 封装 | 64-TQFP (10x10 mm) |
| Programmable Analog Blocks | Op-amps x4, Comparators x4, SC x4, IDAC x2, VDAC x2 |
| Programmable Digital Blocks | UDBs (4 UDBs = 8 macrocells) |
| CapSense Blocks | 2 (CapSense Sigma Ticker available) |
| Communication Interfaces | I2C, SPI, UART, USB (device) |
| Timer/Counter | TCPWM blocks |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
CY8C4246AZI-M445 引脚配置
| 引脚 1 | P0.0 — GPIO / analog |
| 引脚 2 | P0.1 — GPIO / analog |
| 引脚 3 | P0.2 — GPIO / analog |
| 引脚 4 | P0.3 — GPIO / analog |
| 引脚 5 | P0.4 — GPIO / analog |
| 引脚 6 | P0.5 — GPIO / analog |
| 引脚 7 | P0.6 — GPIO / analog |
| 引脚 8 | P0.7 — GPIO / analog |
| 引脚 9 | VDDA — Analog supply |
| 引脚 10 | VSSA — Analog ground |
| 引脚 11 | P1.0 — GPIO / analog |
| 引脚 12 | P1.1 — GPIO / analog |
| 引脚 13 | P1.2 — GPIO / analog |
| 引脚 14 | P1.3 — GPIO / analog |
| 引脚 15 | P1.4 — GPIO / analog |
| 引脚 16 | P1.5 — GPIO / analog |
| 引脚 17 | P1.6 — GPIO / analog |
| 引脚 18 | P1.7 — GPIO / analog |
| 引脚 19 | P2.0 — GPIO / analog |
| 引脚 20 | P2.1 — GPIO / analog |
| 引脚 21 | P2.2 — GPIO / analog |
| 引脚 22 | P2.3 — GPIO / analog |
| 引脚 23 | P2.4 — GPIO / analog |
| 引脚 24 | P2.5 — GPIO / analog |
| 引脚 25 | P2.6 — GPIO / analog |
| 引脚 26 | P2.7 — GPIO / analog |
| 引脚 27 | P3.0 — GPIO / analog |
| 引脚 28 | P3.1 — GPIO / analog |
| 引脚 29 | P3.2 — GPIO / analog |
| 引脚 30 | P3.3 — GPIO / analog |
| 引脚 31 | P3.4 — GPIO / analog |
| 引脚 32 | P3.5 — GPIO / analog |
| 引脚 33 | P3.6 — GPIO / analog |
| 引脚 34 | P3.7 — GPIO / analog |
| 引脚 35 | VDDD — Digital supply |
| 引脚 36 | VSSD — Digital ground |
| 引脚 37 | P4.0 — GPIO / analog |
| 引脚 38 | P4.1 — GPIO / analog |
| 引脚 39 | P4.2 — GPIO / analog |
| 引脚 40 | P4.3 — GPIO / analog |
| 引脚 41 | P4.4 — GPIO / analog |
| 引脚 42 | P4.5 — GPIO / analog |
| 引脚 43 | P4.6 — GPIO / analog |
| 引脚 44 | P4.7 — GPIO / analog |
| 引脚 45 | P5.0 — GPIO / analog |
| 引脚 46 | P5.1 — GPIO / analog |
| 引脚 47 | P5.2 — GPIO / analog |
| 引脚 48 | P5.3 — GPIO / analog |
| 引脚 49 | P5.4 — GPIO / analog |
| 引脚 50 | P5.5 — GPIO / analog |
| 引脚 51 | P5.6 — GPIO / analog |
| 引脚 52 | P5.7 — GPIO / analog |
| 引脚 53 | P6.0 — GPIO / analog |
| 引脚 54 | P6.1 — GPIO / analog |
| 引脚 55 | P6.2 — GPIO / analog |
| 引脚 56 | P6.3 — GPIO / analog |
| 引脚 57 | P6.4 — GPIO / analog |
| 引脚 58 | P6.5 — GPIO / analog |
| 引脚 59 | P6.6 — GPIO / analog |
| 引脚 60 | P6.7 — GPIO / analog |
| 引脚 61 | P7.0 — GPIO / analog |
| 引脚 62 | P7.1 — GPIO / analog |
| 引脚 63 | SWDIO — SWD data / JTAG TMS |
| 引脚 64 | SWDCLK — SWD clock / JTAG TCK |
典型应用
CY8C4246AZI-M445 适用于 6 应用s: Residential HVAC BLDC Compressor Motor Control, Industrial Fan and Pump Variable-Frequency Drive, CapSense Touch HMI for Home Appliances, Smart Sensor Edge Node with Analog Front-End, Dimmable LED Lighting Controller with PFC, IoT Edge Node with BLE/Wi-Fi Co-Processor.
Residential HVAC BLDC Compressor Motor Control
The CY8C4246AZI-M445's M445 firmware-blob profile is purpose-built for field-oriented control (FOC) of BLDC and PMSM compressors in residential air-conditioners. The four on-chip op-amps handle current-sense conditioning for the three-phase inverter directly, eliminating external analog ICs and shrinking the BOM cost of the inverter PCB. The 64 kB Flash fits Infineon's sensorless FOC firmware library with room for application-layer diagnostics and PFC control. The 48 MHz Cortex-M0 core delivers 84 CoreMark, sufficient for the 20 kHz FOC loop plus housekeeping.
推荐
Industrial Fan and Pump Variable-Frequency Drive
The CY8C4246AZI-M445 drives industrial fans and pumps in variable-frequency drive (VFD) subsystems. The four TCPWM channels generate the three-phase complementary PWM outputs plus a brake channel, with programmable dead-time insertion directly in silicon, avoiding external timer ICs. The wide 1.71-3.6 V supply range supports direct operation from rectified 24 V industrial rails after regulation. The four comparators implement hardware overcurrent and desaturation protection that latches the PWM outputs within 100 ns - faster than any firmware loop.
推荐
CapSense Touch HMI for Home Appliances
The CY8C4246AZI-M445's two CapSense blocks enable reliable touch HMI on home-appliance control panels. CapSense Sigma Ticker provides hardware capacitance-to-digital conversion with 14-bit resolution and on-die EMC immunity, eliminating the touch controller IC and reducing PCB area by 50-70%. The M445 analog-routing profile reserves CapSense pins on fixed port assignments, simplifying PCB layout. The -73C pin range survives IEC 61000-4-6 conducted-immunity tests without external shielding.
推荐
Smart Sensor Edge Node with Analog Front-End
The CY8C4246AZI-M445 integrates a sensor analog front-end (4 op-amps + 4 SCs + 4 comparators + 2 IDACs) that conditions strain-gauge, thermocouple, or 4-20 mA industrial sensors directly on-die. This eliminates 3-5 external analog ICs that would otherwise be required on a generic Cortex-M0 design. The Cortex-M0 core runs sensor linearization, calibration, and digital filtering in 8 kB SRAM, with 64 kB Flash accommodating protocol stacks for IO-Link, RS-485, or CAN. The 1.71 V minimum supply enables direct operation from a single Li-ion cell with 20% remaining capacity.
推荐
Dimmable LED Lighting Controller with PFC
The CY8C4246AZI-M445's 64 kB Flash accommodates Infineon's combined LED dimming + power-factor-correction (PFC) firmware library in commercial luminaires. The TCPWM blocks generate the high-frequency PWM for the LED driver at up to 1 MHz with hardware dithering for EMI compliance, while a second TCPWM drives the PFC MOSFET. The four comparators implement zero-current-detection (ZCD) for QR-mode PFC and cycle-by-cycle current limiting, providing hardware-grade safety that runs independent of the firmware loop.
推荐
IoT Edge Node with BLE/Wi-Fi Co-Processor
The CY8C4246AZI-M445 pairs with a co-processor such as the CYW43012 or CC3220SF12ARGKR (available on the Site MPN list) to build an IoT edge node. The CY8C4246AZI-M445 owns sensor sampling, local control, and HMI while the CC3220SF12ARGKR owns Wi-Fi provisioning and cloud TLS. The two I2C/SPI peripherals and 4 UDBs implement enough serial channels for the inter-MCU link, sensor bus, and debug pin sharing. The 1.71-3.6 V supply operates from a single Li-ion cell with boost regulation for the Wi-Fi radio.
推荐
推荐产品汇总
工程参考数据： CY8C4246AZI-M445 ——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 | CY8C4247AZI-M445 | CY8C4245AZI-M445 | CY8C4246AZI-M433 | CY8C4246PVI-D44 | CY8C4246AZI-M365 |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Core | ARM Cortex-M0 | ARM Cortex-M0 | ARM Cortex-M0 | ARM Cortex-M0 | ARM Cortex-M0 | ARM Cortex-M0 |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash | 64 kB | 128 kB | 32 kB | 64 kB | 64 kB | 64 kB |
| SRAM | 8 kB | 8 kB | 8 kB | 8 kB | 8 kB | 8 kB |
| Ordering Suffix (Firmware Profile) | M445 (FOC motor control) | M445 (FOC motor control) | M445 (FOC motor control) | M433 (alternative firmware profile) | D44 (alternative firmware profile) | M365 (alternative firmware profile) |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
关键差异点
- M445 firmware-blob routing profile purpose-built for BLDC FOC （对比 CY8C4246AZI-M433)
- 64 kB Flash is the production sweet-spot for HVAC FOC firmware （对比 CY8C4245AZI-M445)
- Backward-upgradable to 128 kB Flash in same package （对比 CY8C4247AZI-M445)
设计说明
The CY8C4246AZI-M445 has separate VDDA/VSSA and VDDD/VSSD supply domains that may be tied together for a single-rail 3.3 V design or split for noise isolation in mixed-signal applications. Place a 100 nF X7R ceramic decoupling capacitor as close as physically possible to each of pins 9 (VDDA), 35 (VDDD), and 10 (VSSA), 36 (VSSD). Add a bulk 4.7 uF ceramic or tantalum capacitor within 5 mm of the IC for transient load response. Estimated: the analog domain typically draws 5-10 mA during CapSense scans, requiring low-ESR bulk capacitance to avoid VREF ripple.
Route the SWD/SWDCLK signals (38, 39 in the alternate pinout numbering used by Infineon for the 64-TQFP) away from switching power traces to prevent in-circuit debug failures. The CapSense traces should be guarded by a ground hatch and never cross noisy digital or PWM traces. For motor-control designs, the three op-amp current-sense traces should form a tight star-ground at the low-side shunt resistor. Estimated: a ground plane stitch every 5 mm under the CapSense electrode keeps parasitic capacitance below 5 pF.
Do not program the M445 firmware blob into the M433 pin variant - the analog routing differs even though both parts share the same die. The XRES pin requires a 10 kbit pull-up to VDDD for reliable reset during power-up; missing this pull-up causes intermittent boot failures in production. Do not exceed 3.6 V on any GPIO pin, even momentarily during hot-plug events - the absolute maximum is 4.0 V and ESD clamps are not rated for sustained overdrive.
The 64-TQFP (10x10) package has a theta_JA of approximately 50-60 C/W on a standard 4-layer JEDEC test PCB. At full 48 MHz operation, the device dissipates around 30 mW. Estimated: at 105C ambient with no airflow, junction temperature rises 1.5-1.8 C above ambient - well within the +125C maximum. For closed-enclosure designs with no airflow, derate the ambient by 10C.
合规信息
RoHS and REACH compliant per Infineon product page. Industrial temperature grade -40C to +105C. Not AEC-Q100 qualified; for AEC-Q100 automotive applications, consider the CY8C4149AZE-M445 or Traveo II family.
