Infineon Technologies CY8C4247AZI-L423T

Overview

CY8C4247AZI-L423T from Infineon is a PSoC™ 4200L programmable system-on-chip featuring a 48 MHz Arm® Cortex®-M0 CPU, 256 kB flash, 32 kB SRAM, four opamps with comparator mode, and dual CAN controllers. It integrates reconfigurable analog/digital blocks, capacitive sensing (CSD), and USB Full-Speed for embedded control in industrial HMI and automotive body electronics.

For engineers reviewing the CY8C4247AZI-L423T datasheet, CY8C4247AZI-L423T pinout, CY8C4247AZI-L423T application, or CY8C4247AZI-L423T equivalent, key selection criteria include Deep Sleep current (20 nA), 94 GPIOs with CAPSENSE™ support, 8 TCPWM blocks, dual CAN 2.0B interfaces, and USB Battery Charger Detect capability.

Technical Context

The device implements a tightly coupled MCU subsystem with DMA-driven peripheral arbitration and configurable clock tree including IMO (8–48 MHz), ILO (32.768 kHz), and PLL-based high-precision timing. Its analog subsystem features four CTBm opamp blocks supporting simultaneous ADC input buffering, comparator latching, and rail-to-rail output drive at <1 µA quiescent current in Deep Sleep.

Digital flexibility stems from eight UDBs-each with 8 macrocells and an 8-bit datapath-enabling custom state machines or logic functions, while four SCBs provide runtime-reconfigurable I²C/SPI/UART and two dedicated CAN 2.0B controllers with message RAM and FIFO support for deterministic networking.

Key Specifications

Pinout & Package

Package: 124-ball VFBGA (5 mm × 5 mm, 0.4 mm pitch). Pin mapping validated per Infineon datasheet Rev. *L (2023-12-11), Table 3 "Pinouts".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable microcontroller applications.

Compared with CY8C4247AZI-L423T, the BL483 variants trade VFBGA density and integrated USB PHY for QFN manufacturability and memory scalability-making them suitable for cost-sensitive or USB-optional designs, but requiring layout and firmware adaptation.

Availability

CY8C4247AZI-L423T is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body control modules, and smart home sensor hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C4247AZI-L423T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and embedded security solutions.

This part belongs to the PSoC™ 4200L product line, designed for cost-sensitive, low-power embedded systems requiring field-programmable analog/digital logic, robust capacitive sensing, and dual-CAN connectivity in industrial and automotive environments.

FAQ

Does CY8C4247AZI-L423T support USB device enumeration without external components?

Yes. The part integrates a full-speed USB 2.0 PHY with internal termination resistors and Battery Charger Detect (BCD) circuitry. No external transceiver or resistor network is required for standard USB device enumeration or charging detection per USB BC 1.2 specification.

What is the maximum operating temperature range for this device?

CY8C4247AZI-L423T is rated for industrial temperature operation from –40 °C to +85 °C. This is confirmed in Section 5.2.1 of the official datasheet (Rev. *L, page 28), where ambient temperature limits and thermal derating curves are specified for all power modes.

Can the opamps operate during Deep Sleep mode?

Yes. All four CTBm opamps retain full functionality-including comparator latching and ADC input buffering-at currents below 1 µA in Deep Sleep mode. This capability is documented in Section 2.3.3 and electrical specs Table 5.3.1 of the datasheet.

How many pins support CAPSENSE™ functionality?

Up to 94 GPIO pins support CAPSENSE™, as stated in the "Features" section (page 1) and verified in Section 2.6 (GPIO) of the datasheet. Each pin can be assigned as a CSD sensor or shield, with hardware-accelerated scanning managed by the two dedicated CSD blocks.