CY8C5246AXI-054 - 40MHz Cortex-M3 PSoC 5 MCU | Infineon
MPN: CY8C5246AXI-054 ✓ ActiveCY8C5246AXI-054 Overview
A programmable system-on-chip, or PSoC, is a mixed-signal microcontroller architecture that combines a CPU, programmable digital blocks, analog-to-digital and digital-to-analog converters, timers, communication interfaces, and touch-sensing resources in one integrated device. In the semiconductor hierarchy, the CY8C5246 belongs to the microcontroller and embedded-processing family, providing a platform for compact control and human-machine-interface designs.
The principal benefits of the CY8C5246AXI-054 are its 40 MHz maximum operating frequency, Arm Cortex-M3 instruction set, 64 KB Flash memory, and configurable peripheral blocks. According to the Cypress Semiconductor datasheet information, PSoC 5 devices combine memory, analog, and digital peripheral functions in one chip. This integration can reduce external component count while allowing peripheral behavior to be adapted to application requirements.
The 32-bit Cortex-M3 core supports deterministic embedded control, while the configurable PSoC blocks extend the design beyond a fixed-pin microcontroller. This combination is useful when a product needs both conventional control logic and application-specific analog or digital functions. The available source information does not provide the complete peripheral inventory, SRAM capacity, operating-temperature range, or detailed clock configuration, so those values should be confirmed in the manufacturer documentation.
Typical uses include capacitive-touch human-machine interfaces, USB and LIN-connected industrial controls, embedded user-interface modules, and compact consumer appliances. The target is especially relevant where an integrated MCU, programmable logic, analog conversion, and memory are needed within a single 100-pin TQFP footprint. The listed distributor information identifies the CY8C5246 series as a USB/LIN MCU with capacitive-touch control capabilities.
Designers should validate the complete pin assignment and peripheral allocation in the datasheet before final schematic capture. The 100-pin TQFP package provides many dedicated and multiplexed connections, but incorrect programming of routing or pin multiplexing can cause interface conflicts. Firmware, bootloader support, clocking, decoupling, and touch-sensor calibration should also be reviewed against the applicable PSoC 5 documentation.
This product data combines verified manufacturer-derived specifications, distributor availability, pricing, and cross-reference results with practical selection guidance. It specifically distinguishes same-package drop-in candidates from package changes and identifies which engineering details still require confirmation from the full manufacturer datasheet.
Drop-in alternatives for CY8C5246AXI-054 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
CY8C5246AXI-048
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C5247AXI-051
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C5267AXI-LP051
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C5668AXI-LP010
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C5246AXI-054 Maximum Ratings & Electrical Characteristics
| Product Type | Programmable System-on-Chip (PSoC 5) microcontroller |
| CPU Core | 32-bit Arm Cortex-M3 RISC |
| Maximum Operating Frequency | 40 MHz |
| Flash Memory | 64 KB |
| Supply Voltage Options | 2.5 V, 3.3 V, or 5 V |
| Package | 100-pin TQFP |
| Mounting Type | Surface mount |
| Programmable Peripheral Architecture | Configurable analog and digital blocks |
| Communication Interface | USB/LIN |
| User Interface Capability | Capacitive-touch human-machine interface |
CY8C5246AXI-054 100-pin tqfp Pin Configuration Guide
Pin configuration for CY8C5246AXI-054 (100-pin tqfp package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for CY8C5246AXI-054.
Refer to the datasheet for full pin configuration.
Typical Applications
CY8C5246AXI-054 is suitable for 6 applications: Capacitive-Touch Human-Machine Interface, USB and LIN Industrial Control Module, Programmable Analog and Digital Control, Consumer Appliance User Interface, Embedded Sensor Interface and Data Acquisition, Connected Embedded Accessory.
Capacitive-Touch Human-Machine Interface
The CY8C5246AXI-054 is suitable for capacitive-touch control panels because the verified distributor information identifies the PSoC 5 device with capacitive-touch human-machine-interface capability. Its 40 MHz Arm Cortex-M3 core can execute touch scanning, filtering, calibration, and interface logic, while the programmable analog and digital blocks provide configurable signal-chain resources. The 100-pin TQFP package also offers a substantial pin count for buttons, displays, communications, and shared touch electrodes. Designers should confirm the available touch channels and peripheral routing in the manufacturer package data, then validate electrode noise immunity against the target enclosure and grounding arrangement.
Recommended
USB and LIN Industrial Control Module
The CY8C5246AXI-054 fits compact USB/LIN control modules where a 40 MHz Cortex-M3 processor and programmable peripherals must coexist on one board. USB and LIN support makes the device relevant to control nodes that bridge a local user interface, a low-speed vehicle or industrial network, and embedded application logic. At 2.5 V, 3.3 V, or 5 V supply options, the MCU can support multiple embedded supply domains, although the exact USB transceiver, bus protection, and operating-mode requirements must be checked against the complete datasheet. The 64 KB Flash capacity should also be compared with the compiled firmware and field-update strategy.
Recommended
Programmable Analog and Digital Control
The configurable PSoC 5 architecture makes CY8C5246AXI-054 relevant to designs that need programmable analog and digital functions beyond a conventional fixed-function MCU. A product designer can use the available configurable blocks for signal conditioning, control sequencing, or application-specific logic while retaining a single 32-bit Cortex-M3 processing core. This can reduce the need for separate programmable logic when the workload fits the device's documented peripheral resources. The supplied data does not enumerate converter resolutions, timer counts, routing limitations, or maximum block configurations, so a complete implementation must be modeled in the appropriate PSoC design tool and checked against the final clock plan.
Recommended
Consumer Appliance User Interface
The CY8C5246AXI-054 can support a compact consumer-appliance user interface combining capacitive controls, indication logic, communications, and embedded control in one 100-pin TQFP device. Its 40 MHz Cortex-M3 core provides sufficient computational headroom for responsive menu and touch handling, while PSoC integration can consolidate functions that would otherwise occupy several discrete devices. The 64 KB Flash figure must be checked against the final application code, graphics data, and update requirements. Before release, engineers should also evaluate standby behavior, ESD robustness of touch electrodes, display-interface timing, and PCB thermal performance; several of those values were not present in the supplied verified data.
Recommended
Embedded Sensor Interface and Data Acquisition
The CY8C5246AXI-054 is applicable to compact sensor-interface designs because its PSoC architecture combines a 40 MHz Cortex-M3 core with programmable analog and digital resources. The MCU can coordinate sensor reads, apply digital filtering, manage thresholds, and expose results over USB, LIN, or other configured interfaces. This integration can be useful in industrial sensing products where board area and component count are constrained. However, the supplied evidence does not specify ADC resolution, input count, acquisition time, input impedance, or sensor noise performance, so those parameters must be verified before claiming suitability for precision measurement. External protection and filtering may also be required.
Recommended
Connected Embedded Accessory
The CY8C5246AXI-054 supports compact connected accessories that require local capacitive controls, USB or LIN communication, and configurable signal handling in one device. A product can place the MCU between touch keys or controls and an external interface controller while using its 40 MHz core for debouncing, filtering, diagnostics, and protocol coordination. The 100-pin TQFP footprint provides a substantial I/O complement compared with a small leadless package. Designers should confirm the exact peripheral sharing and pin multiplexing because the supplied data does not provide the complete pin table. Production planning must also account for boot programming, firmware protection, connector protection, and the 64 KB Flash limit.
Recommended
Recommended Products Summary
Engineering reference data for CY8C5246AXI-054 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CY8C5246AXI-048 | CY8C5247AXI-051 | CY8C5267AXI-LP051 | CY8C5668AXI-LP010 |
|---|---|---|---|---|---|
| Package | 100-pin TQFP | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| CPU Core | 32-bit Arm Cortex-M3 RISC | 32-bit Arm Cortex-M3 RISC | 32-bit Arm Cortex-M3 RISC | 32-bit Arm Cortex-M3 RISC | 32-bit Arm Cortex-M3 RISC |
| Programmable Architecture | PSoC 5 with configurable analog and digital blocks | PSoC 5 with configurable blocks | PSoC 5 with configurable blocks | PSoC 5 with configurable blocks | PSoC 5 with configurable blocks |
Key Differentiators
- Documented 64 KB Flash configuration (vs CY8C5247AXI-051)
- 40 MHz maximum operating frequency (vs CY8C5267AXI-LP051)
- Explicit USB/LIN and capacitive-touch positioning (vs CY8C5668AXI-LP010)
Design Notes
Do not treat the family similarity of the listed alternatives as proof of software compatibility. Although the comparison data identifies 100-pin TQFP packages and Cortex-M3 cores, it also shows different Flash capacities and, for CY8C5267AXI-LP051, a broader listed voltage range. Before substitution, compare the official ordering table, package drawing, peripheral map, boot configuration, pin multiplexing, interrupt vector layout, and clock setup. A physical footprint match alone does not guarantee a functional drop-in replacement.
Use the manufacturer 100-pin TQFP land pattern and pin-1 orientation rather than inferring geometry from the generic package name. TQFP packages have fine-pitch leads and thermal or electrical performance can be affected by solder-paste volume, pad geometry, and copper. Verify the exact exposed-pad arrangement, if any, against the package drawing, and use a manufacturer-recommended land pattern plus assembly process capable of resolving the lead pitch.
Plan the supply rails from the verified 2.5 V, 3.3 V, and 5 V device options, but confirm the precise core and peripheral voltage domains in the complete datasheet. Place the required bypass capacitors next to their associated supply and ground pins, preserve a continuous return path, and keep sensitive touch or analog routing away from noisy switching nodes. The supplied data does not state capacitor values, current consumption, or startup behavior, so those values must not be guessed.
Review the complete pin multiplexing map before assigning USB, LIN, touch sensing, clocks, programming signals, and debug functions. Many PSoC functions can be routed to different pins, but the available choices may be constrained by clocking, analog blocks, and package boundaries. Freeze the pin assignment in the PSoC configuration early, then validate the resulting board against generated configuration files rather than relying on generic 100-pin TQFP naming conventions.
Compliance Information
The supplied search results reference RoHS and REACH comparison categories but do not explicitly state the compliance status for CY8C5246AXI-054. Confirm declarations for the exact ordering code before production release.
