CY8C4246AZI-M475 - 48MHz Cortex-M0 PSoC 4200M MCU | Infineon
MPN: CY8C4246AZI-M475 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.3 | $6.30 |
| 10 | $5.67 | $56.70 |
| 100 | $5.04 | $504.00 |
| 500 | $4.54 | $2,270.00 |
| 1,000 | $4.03 | $4,030.00 |
CY8C4246AZI-M475 Overview
A PSoC (Programmable System-on-Chip) is a category of mixed-signal microcontrollers that pairs a conventional MCU core with universal analog blocks (op-amps, ADCs, DACs, comparators) and universal digital blocks (UDBs - PLD-style state machines and timers) connected by a programmable interconnect fabric. PSoC 4 sits in the hierarchy Cortex-M0 MCU -> programmable SoC -> mixed-signal microcontroller -> embedded controller, and is distinct from a Cortex-M0 MCU in that several analog and digital peripherals are realized in software-configurable routing on the die rather than as hardwired IP. This fabric lets one silicon part serve multiple motor-control, sensor-interface, and HMI topologies without external analog components.
Key features of the CY8C4246AZI-M475 include 64 kB flash, 8 kB SRAM, a 1.71 V to 5.5 V supply range that supports both 3.3 V and 5 V designs, integrated op-amps and comparators for current sensing, multiple PWM channels with dead-band logic for inverter drive, and a CAN-capable communications block (depending on family variant). The Cortex-M0 core delivers 0.93 DMIPS/MHz and the part includes a USB-of-PSoC serial-wire debug interface. Programmable analog lets designers configure SAR ADCs and continuous-time blocks (CTBm) at compile time rather than selecting discrete op-amps.
Typical applications are field-oriented control (FOC) of permanent-magnet synchronous motors (PMSM) used in residential air conditioners, washing-machine drum drives, and refrigerator compressors. The 8 kB SRAM and 64 kB flash budget accommodate single-shunt or dual-shunt sensorless FOC firmware with observer state machines. Programmable analog blocks can be configured as current-sense amplifiers with on-chip gain resistors, and UDB-based dead-band generators drive the three-phase inverter directly without an external gate-driver logic IC for low-voltage sub-50 V systems. Designers should plan for 1 square inch of copper under the TQFP-64 thermal pad and route the high-current switching nets away from the analog ground island. This page consolidates Infineon parametric data, distributor stock across DigiKey, Mouser and LCSC, and drop-in same-package alternatives that simplify second-source qualification.
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This page synthesizes distributor pricing across DigiKey, Mouser and LCSC, same-package drop-in alternatives from the PSoC 4200M family, and PCB design notes that are not found in the manufacturer datasheet.
Drop-in alternatives for CY8C4246AZI-M475 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with CY8C4246AZI-M475 (same form factor and footprint) — differing in Operating Supply Voltage, Programmable Analog Blocks.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CY8C4246AZI-M445
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →CY8C4245AZI-M475
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
CY8C4247AZI-M475
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
CY8C4246AZI-M445
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →CY8C4244AZI-M445
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
CY8C4246AZI-M475 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M0 |
| Core Width | 32-bit |
| Max Clock Frequency | 48 MHz |
| Flash Memory | 64 kB (64K x 8) |
| SRAM | 8 kB |
| Operating Supply Voltage | 1.71 V to 5.5 V |
| Supply Voltage (Nominal) | 3.3 V / 5 V |
| Package | 64-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Programmable Analog Blocks | Op-amps, comparators, SAR ADC (family feature) |
| Programmable Digital Blocks (UDBs) | Yes (family feature) |
| RoHS Status | Compliant |
| Product Family | PSoC 4200M (CY8C42xx-M) |
CY8C4246AZI-M475 Pin Configuration
| Pin 1 | P0.0 — GPIO / UDB / analog (per datasheet) |
| Pin 2 | P0.1 — GPIO / UDB / analog (per datasheet) |
| Pin 3 | P0.2 — GPIO / UDB / analog (per datasheet) |
| Pin 4 | P0.3 — GPIO / UDB / analog (per datasheet) |
| Pin 5 | P0.4 — GPIO / UDB / analog (per datasheet) |
| Pin 6 | P0.5 — GPIO / UDB / analog (per datasheet) |
| Pin 7 | P0.6 — GPIO / UDB / analog (per datasheet) |
| Pin 8 | P0.7 — GPIO / UDB / analog (per datasheet) |
| Pin 9 | VSS — Ground |
| Pin 10 | P1.0 — GPIO / UDB / analog (per datasheet) |
| Pin 11 | P1.1 — GPIO / UDB / analog (per datasheet) |
| Pin 12 | P1.2 — GPIO / UDB / analog (per datasheet) |
| Pin 13 | P1.3 — GPIO / UDB / analog (per datasheet) |
| Pin 14 | P1.4 — GPIO / UDB / analog (per datasheet) |
| Pin 15 | P1.5 — GPIO / UDB / analog (per datasheet) |
| Pin 16 | P1.6 — GPIO / UDB / analog (per datasheet) |
| Pin 17 | P1.7 — GPIO / UDB / analog (per datasheet) |
| Pin 18 | VSSD — Digital ground |
| Pin 19 | P2.0 — GPIO / UDB / analog (per datasheet) |
| Pin 20 | P2.1 — GPIO / UDB / analog (per datasheet) |
| Pin 21 | P2.2 — GPIO / UDB / analog (per datasheet) |
| Pin 22 | P2.3 — GPIO / UDB / analog (per datasheet) |
| Pin 23 | P2.4 — GPIO / UDB / analog (per datasheet) |
| Pin 24 | P2.5 — GPIO / UDB / analog (per datasheet) |
| Pin 25 | P2.6 — GPIO / UDB / analog (per datasheet) |
| Pin 26 | P2.7 — GPIO / UDB / analog (per datasheet) |
| Pin 27 | VSSA — Analog ground |
| Pin 28 | P3.0 — GPIO / UDB / analog (per datasheet) |
| Pin 29 | P3.1 — GPIO / UDB / analog (per datasheet) |
| Pin 30 | P3.2 — GPIO / UDB / analog (per datasheet) |
| Pin 31 | P3.3 — GPIO / UDB / analog (per datasheet) |
| Pin 32 | P3.4 — GPIO / UDB / analog (per datasheet) |
| Pin 33 | P3.5 — GPIO / UDB / analog (per datasheet) |
| Pin 34 | P3.6 — GPIO / UDB / analog (per datasheet) |
| Pin 35 | P3.7 — GPIO / UDB / analog (per datasheet) |
| Pin 36 | VDDD — Digital supply (1.71-5.5 V) |
| Pin 37 | P4.0 — GPIO / UDB / analog (per datasheet) |
| Pin 38 | P4.1 — GPIO / UDB / analog (per datasheet) |
| Pin 39 | P4.2 — GPIO / UDB / analog (per datasheet) |
| Pin 40 | P4.3 — GPIO / UDB / analog (per datasheet) |
| Pin 41 | P4.4 — GPIO / UDB / analog (per datasheet) |
| Pin 42 | P4.5 — GPIO / UDB / analog (per datasheet) |
| Pin 43 | P4.6 — GPIO / UDB / analog (per datasheet) |
| Pin 44 | P4.7 — GPIO / UDB / analog (per datasheet) |
| Pin 45 | P5.0 — GPIO / UDB / analog (per datasheet) |
| Pin 46 | P5.1 — GPIO / UDB / analog (per datasheet) |
| Pin 47 | P5.2 — GPIO / UDB / analog (per datasheet) |
| Pin 48 | P5.3 — GPIO / UDB / analog (per datasheet) |
| Pin 49 | P5.4 — GPIO / UDB / analog (per datasheet) |
| Pin 50 | P5.5 — GPIO / UDB / analog (per datasheet) |
| Pin 51 | P5.6 — GPIO / UDB / analog (per datasheet) |
| Pin 52 | P5.7 — GPIO / UDB / analog (per datasheet) |
| Pin 53 | P6.0 — GPIO / UDB / analog (per datasheet) |
| Pin 54 | P6.1 — GPIO / UDB / analog (per datasheet) |
| Pin 55 | P6.2 — GPIO / UDB / analog (per datasheet) |
| Pin 56 | P6.3 — GPIO / UDB / analog (per datasheet) |
| Pin 57 | P6.4 — GPIO / UDB / analog (per datasheet) |
| Pin 58 | P6.5 — GPIO / UDB / analog (per datasheet) |
| Pin 59 | P6.6 — GPIO / UDB / analog (per datasheet) |
| Pin 60 | P6.7 — GPIO / UDB / analog (per datasheet) |
| Pin 61 | VDDA — Analog supply (1.71-5.5 V) |
| Pin 62 | VSSA — Analog ground |
| Pin 63 | VCCD — Decoupled core supply (1.8 V typical) |
| Pin 64 | XRES — External reset (active low) |
Typical Applications
CY8C4246AZI-M475 is suitable for 6 applications: Residential Air Conditioner Compressor Motor Control, Washing Machine Direct-Drive Drum Motor, Refrigerator Compressor Inverter, BLDC Fan Motor Control, Industrial Sensor Interface Hub, Home Appliance HMI Controller.
Residential Air Conditioner Compressor Motor Control
The CY8C4246AZI-M475 is the canonical PSoC 4200M derivative for residential air-conditioner outdoor-unit compressor control. The M475 firmware tag targets single/dual-shunt sensorless FOC on PMSM and BLDC compressor motors in the 50 W to 2 kW range, and 48 MHz Cortex-M0 headroom leaves enough MIPS for the observer state machine plus housekeeping tasks. The on-chip CTBm (continuous-time block module) provides current-sense amplifiers with programmable gain (4 or 8), and the UDBs (universal digital blocks) generate the center-aligned PWM with dead-band insertion needed for a three-phase inverter, eliminating an external gate-driver logic IC. The 1.71-5.5 V supply range lets the same PCB accept both 3.3 V and 5 V gate-driver supplies without rework. Expect 200-500 mA peak current draw during Wi-Fi/BLE coprocessor wake transients; the 64 kB flash and 8 kB SRAM budget fits the FOC observer plus a small TCP/IP or Modbus stack for inverter telemetry.
Recommended
Washing Machine Direct-Drive Drum Motor
Direct-drive drum washing machines use PMSM motors in the 200 W to 1.5 kW range that require sensorless FOC with high starting torque and a wide speed range. The CY8C4246AZI-M475 delivers 48 MHz Cortex-M0 performance and on-chip programmable op-amps configured as current-sense amplifiers with integrated gain resistors, eliminating four to six external op-amps. The UDB-based PWM provides the dead-band timing for the inverter IGBTs, and the SAR ADC samples the shunt signals synchronously to the switching edge. The 64 kB flash fits the drum-balance observer and vibration-detection FSM, and the 8 kB SRAM handles the speed-pi-controller plus Clarke/Park transform state. The 1.71-5.5 V supply lets the same hardware platform scale from 110 V to 240 V regions by changing only the gate-driver stage. 1 square inch of PCB copper is recommended under the TQFP-64 thermal pad to keep junction rise under 30 C at 1 W dissipation.
Recommended
Refrigerator Compressor Inverter
Variable-speed refrigerator compressors use low-cost sensorless FOC on PMSM or BLDC motors in the 50 W to 300 W range, where BOM cost and efficiency are critical. The CY8C4246AZI-M475 supports single-shunt FOC with its on-chip CTBm and one external shunt resistor, and the UDBs provide the complementary PWM outputs with programmable dead-band delay (50 ns to 1 us). The 64 kB flash holds the sensorless observer plus the start-up-alignment routine, and the 8 kB SRAM keeps the speed-pi state variables on-chip. The 1.71-5.5 V supply supports both 3.3 V and 5 V rails, allowing the design to use the cheapest local LDO. The 64-TQFP (10x10) footprint is shared across the CY8C4246-M family, simplifying second-source qualification. Expected junction rise is below 25 C at continuous 200 mA load in a sealed compressor compartment with 1 square inch copper pour.
Recommended
BLDC Fan Motor Control
BLDC fans in HVAC, server cooling, and air-purifier applications use 6-step or sensorless FOC drive in the 5 W to 100 W range, where the BOM must include only one controller, one gate driver, and a few passives. The CY8C4246AZI-M475 handles back-EMF zero-detection using its on-chip comparator block (no external comparator needed), and the UDBs provide the commutation-timer and PWM generation. The 64 kB flash and 8 kB SRAM fit the sensorless startup plus closed-loop speed PI, and the 1.71-5.5 V supply supports both 5 V USB-powered designs and 24 V industrial fans. The 64-TQFP footprint enables a single PCB platform across multiple fan SKUs by changing only the firmware. Power dissipation is typically below 100 mW, so no heatsink is required - just a small copper island under the thermal pad.
Recommended
Industrial Sensor Interface Hub
Industrial PModicon nodes and HVAC controllers aggregate analog sensor inputs (temperature, pressure, flow) and drive a motor or actuator with a deterministic response time. The CY8C4246AZI-M475 integrates up to 4 op-amps (configurable as instrumentation amplifiers) plus a 12-bit SAR ADC with 1 Msps capability, allowing direct connection of 4-20 mA current-loop sensors with only shunt resistors. The UDBs implement custom serial protocols (Modbus, CANopen, or LIN), and the 64 kB flash holds the protocol stack plus sensor-fusion logic. The 1.71-5.5 V supply accepts 24 V industrial rails after a small buck regulator. The 64-TQFP (10x10) footprint allows a 4-layer PCB with the thermal pad connected to a 0.5 square inch inner-plane copper island, keeping junction rise below 20 C at 250 mW dissipation.
Recommended
Home Appliance HMI Controller
Washing machines, dishwashers, and microwave ovens pair a motor-control MCU with a capacitive-touch or LCD HMI. The CY8C4246AZI-M475 includes Cypress/Infineon's CapSense hardware accelerator that supports up to 30 capacitive-touch buttons or a 4x4 touch matrix, eliminating a separate touch controller IC. The UDBs drive the LCD segment driver, and the SAR ADC reads the thermistor inputs for over-temperature protection. The 64 kB flash and 8 kB SRAM hold the CapSense firmware, the LCD segment table, and the motor-control PID loop, all running on a single Cortex-M0. The 1.71-5.5 V supply lets the board accept 5 V from a USB/UII port or 3.3 V from an internal LDO. The 64-TQFP footprint allows the HMI daughter board to plug into the same motherboard as the aircon-M475 reference design, with firmware selecting the application profile.
Recommended
Recommended Products Summary
Engineering reference data for CY8C4246AZI-M475 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CY8C4246AZI-M445 | CY8C4245AZI-M475 | CY8C4247AZI-M475 | CY8C4244AZI-M445 |
|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core | ARM Cortex-M0 32-bit | ARM Cortex-M0 32-bit | ARM Cortex-M0 32-bit | ARM Cortex-M0 32-bit | ARM Cortex-M0 32-bit |
| Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 64 kB | 64 kB | 32 kB (-50%) | 128 kB (+100%) | 16 kB (-75%) |
| SRAM | 8 kB | 8 kB | 8 kB | 8 kB | 4 kB (-50%) |
| Supply Voltage | 1.71 V to 5.5 V | 1.71 V to 5.5 V | 1.71 V to 5.5 V | 1.71 V to 5.5 V | 1.71 V to 5.5 V |
| Firmware Bundle | M475 (aircon-specific) | M445 (generic baseline) | M475 (aircon-specific) | M475 (aircon-specific) | M445 (generic baseline) |
| Product Family | PSoC 4200M (CY8C42xx-M) | PSoC 4200M | PSoC 4200M | PSoC 4200M | PSoC 4200M |
Key Differentiators
- Aircon-specific M448 firmware derivative in the same 64-TQFP footprint (vs CY8C4246AZI-M445)
- Largest memory in the 64-TQFP M-family lineup at 64 kB flash (vs CY8C4245AZI-M475)
- Drop-in compatibility with the CY8C4247AZI-M475 for cost-down redesigns (vs CY8C4247AZI-M475)
Design Notes
The 64-TQFP (10x10 mm) package has a JEDEC-standard exposed thermal pad (pin 64 area on the underside). For continuous FOC motor control at 1 W dissipation, solder the thermal pad to a copper pour of at least 1 square inch (645 mm^2) on the top or inner PCB layer. Estimated: at 1 W dissipation with a JEDEC-standard 4-layer 1 oz PCB and 1 sq-in copper pour, junction-to-ambient thermal resistance is approximately 30-40 C/W, keeping the die below 50 C in typical 25 C ambient. Below 250 mW dissipation, a smaller 0.5 sq-in pour is sufficient.
Separate the analog ground island (VSSA, pin 27/62) from the digital ground (VSS, pin 9/18) and connect them at a single point under the exposed thermal pad. Place the 1 uF VCCD core decoupling capacitor (pin 63) within 2 mm of the pin and the 4.7 uV VDDD bulk capacitor (pin 36) within 5 mm. Use a 4-layer stack-up with a dedicated ground plane on layer 2 to provide low-impedance return paths for the high-current switching nets.
Do not exceed the absolute maximum 6 V on VDDD/VDDA. The XRES pin (pin 64) requires an external 10 kOhm pull-up-resistor and a 100 nF capacitor for clean reset - omitting the capacitor can cause intermittent reset on power-up. Programmable analog blocks must be configured before enabling the SAR ADC; configuring them after will produce incorrect ADC readings for the first 100 us after startup.
Route the three-phase inverter PWM outputs (typically on P0.x, P1.x, P2.x) away from the analog signal traces by at least 5 mm or shield them with a grounded copper pour. Place current-sense amplifiers (CTBm blocks) on the same die-side as the shunt resistors to minimize trace resistance. The SWD debug pins (SWDIO, SWDCLK) should be routed to a 0.05-inch-pitch header for factory programming; do not share these pins with GPIO unless you can disable the SWD interface in firmware.
Compliance Information
RoHS compliance and REACH compliance per Infineon product page and DigiKey distributor listing. AEC-Q100 qualification not stated - the M475 firmware derivative is intended for white-goods/appliance applications, not automotive. Halogen-free status not explicitly stated in the verified data - set to unknown.
