Infineon Technologies CY9AF155RBPMC-G-JNE2

Overview

CY9AF155RBPMC-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 512 KB dual-bank Flash (496 KB upper + 16 KB lower), 64 KB on-chip SRAM (32 KB SRAM0 + 32 KB SRAM1), and operates up to 40 MHz. It integrates UART/CSIO/I²C serial interfaces, 24-channel 12-bit ADC (2.0 µs conversion), 16-channel base timer, and supports six low-power modes including Deep Standby RTC. Used in industrial motor control and embedded HMI systems requiring real-time responsiveness and code security.

For engineers reviewing the CY9AF155RBPMC-G-JNE2 datasheet, CY9AF155RBPMC-G-JNE2 pinout, CY9AF155RBPMC-G-JNE2 application, or CY9AF155RBPMC-G-JNE2 equivalent, key selection criteria include dual-bank Flash for safe firmware updates, 5 V-tolerant I/O on selected pins, hardware CRC acceleration (CRC16/CRC32), and SWJ-DP debug interface compatibility with standard Arm toolchains.

Technical Context

This MCU implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem features independent I-code/D-code buses for SRAM0 and system bus for SRAM1, enabling concurrent CPU and DMA access without contention.

The peripheral set includes a 16-channel multi-function serial interface configurable per channel as UART, CSIO, or I²C; dual 12-bit ADC units with FIFO-based scanning and priority conversion; and QPRC for encoder position tracking with 16-bit position/revolution counters and configurable AIN/BIN/ZIN edge detection.

Key Specifications

Pinout & Package

Package: LQM120 (120-pin LQFP, 14 mm × 14 mm, 0.4 mm pitch). Pinout validated per Cypress Infineon Document No. 002-05646 Rev. *F, Section 3.1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit Arm Cortex-M3 microcontroller applications.

Compared with STM32F103VCT6 and RP2040, CY9AF155RBPMC-G-JNE2 uniquely combines dual-bank Flash for robust OTA updates, hardware CRC acceleration for protocol integrity, and QPRC for direct encoder interfacing-making it optimal for industrial motion control where firmware safety and analog integration are non-negotiable.

Availability

CY9AF155RBPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI, factory automation I/O modules, and energy metering gateways requiring stable component supply, long-term lifecycle support, and qualified automotive-grade sourcing.

Supply support for CY9AF155RBPMC-G-JNE2 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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

The CY9A150RB series belongs to Infineon's FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-sensitive industrial and consumer embedded applications demanding low-power operation, integrated analog peripherals, and secure firmware execution.

FAQ

What is the maximum operating frequency and voltage range for CY9AF155RBPMC-G-JNE2?

The device operates at up to 40 MHz across a supply voltage range of 1.65 V to 3.6 V. This wide VCC range enables direct interfacing with Li-ion battery systems (2.7–3.6 V nominal) and regulated 1.8 V/3.3 V rails without level shifters. Frequency scaling is managed via the main PLL and clock supervisor to maintain timing integrity under voltage variation.

Does CY9AF155RBPMC-G-JNE2 support hardware-based firmware encryption or secure boot?

It does not include dedicated secure boot hardware or AES encryption engines. However, its Flash memory supports code protection via lock bits that prevent read-out and unauthorized reprogramming. Security relies on configuration of Flash protection registers and external secure elements for key management in certified applications.

Can the 12-bit ADC operate concurrently with CPU execution in low-power modes?

Yes-the ADC can perform conversions in Sleep, Timer, and RTC modes using the sub-clock domain. Conversion results are stored in FIFO buffers, and interrupts wake the CPU only upon completion or buffer threshold, minimizing active time and extending battery life in sensor-monitoring applications.

Is SWJ-DP debug supported on all package variants of the CY9A150RB series?

Yes-SWJ-DP is implemented on all CY9A150RB variants including CY9AF155RBPMC-G-JNE2 (LQM120). Pins SWDIO and SWCLK are multiplexed with GPIO but retain full debug functionality when configured; no external debug adapter is needed beyond standard Arm-compliant probes like ST-Link or J-Link.