Infineon Technologies CY9AF142LBPMC1-G-JNE2

Overview

CY9AF142LBPMC1-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), 40 MHz max CPU frequency, and integrated peripherals including UART/CSIO/I²C, 24-channel 12-bit ADC (2.0 µs conversion), RTC, HDMI-CEC, and six low-power modes. It targets embedded motor control and industrial sensor nodes requiring deterministic real-time response and code security.

For engineers reviewing the CY9AF142LBPMC1-G-JNE2 datasheet, CY9AF142LBPMC1-G-JNE2 pinout, CY9AF142LBPMC1-G-JNE2 application, or CY9AF142LBPMC1-G-JNE2 equivalent, key selection criteria include dual-bank Flash for safe firmware updates, hardware flow control support on UART ch.4, 5 V-tolerant GPIO capability, and compatibility with SWJ-DP debug interface - all confirmed in Infineon's official FM3 peripheral manual and Rev. *D datasheet.

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 a system bus for SRAM1, enabling concurrent instruction fetch and data access.

The peripheral set includes an 8-channel DMA controller with 32-bit addressing and burst/block/demand transfer modes, two 12-bit successive-approximation ADC units with FIFO-based scanning and priority conversion, and a dual-timer unit offering 16-/32-bit reload, PWM, PPG, and PWC configurations - all mapped to dedicated clock domains with configurable prescalers.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103C8T6 and RP2040, CY9AF142LBPMC1-G-JNE2 uniquely delivers dual-bank Flash for fail-safe firmware updates, hardware HDMI-CEC compliance, and sub-µA deep-standby RTC - making it optimal for certified consumer electronics and industrial edge controllers requiring long-term field reliability.

Availability

CY9AF142LBPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart home sensor hubs, consumer remote bridges, and PLC I/O modules requiring stable component supply across multi-year production cycles.

Supply support for CY9AF142LBPMC1-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 leader specializing in power management, automotive MCUs, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

This device belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded applications in industrial automation, consumer electronics, and appliance control - emphasizing peripheral integration, code security, and long-term supply stability.

FAQ

Does CY9AF142LBPMC1-G-JNE2 support external memory expansion?

No. Unlike CY9AF141LB and CY9AF144LB variants, this part explicitly omits External Bus Interface functionality per Infineon's FM3 Peripheral Manual TYPE6 classification and datasheet Rev. *D Section 1. Product Lineup. It relies solely on on-chip Flash and SRAM for program and data storage.

What debug interfaces does CY9AF142LBPMC1-G-JNE2 support?

It supports Serial Wire JTAG Debug Port (SWJ-DP) only - Embedded Trace Macrocell (ETM) is not implemented in this variant, as confirmed in datasheet Rev. *D page 5. SWJ-DP provides full SWD and JTAG access for programming, breakpoints, and real-time register inspection without requiring a full 20-pin JTAG header.

Is hardware flow control available on all UART channels?

Hardware flow control (CTS/RTS) is supported exclusively on UART channel 4, as documented in datasheet Rev. *D page 2. Channels 0–3 and 5–7 lack dedicated CTS/RTS pins and require software-based handshaking or external logic for flow management.

Can CY9AF142LBPMC1-G-JNE2 operate from a single 3.3 V supply?

Yes. Its specified operating voltage range is 1.65 V to 3.6 V (Rev. *D page 61), fully covering standard 3.3 V ±5% rails. All I/Os are 5 V-tolerant on designated pins (e.g., P00–P07), allowing direct interfacing with legacy 5 V logic without level shifters.