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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY9AF142MBPMC1-G-JNE2

Name: CY9AF142MBPMC1-G-JNE2
Brand: Infineon Technologies
SKU: CY9AF142MBPMC1-G-JNE2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY9AF142MBPMC1-G-JNE2

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 80-LQFP

Datasheet:: CY9AF142MBPMC1-G-JNE2.pdf

Description:: IC MCU 32BIT 160KB FLASH 80LQFP

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Product details

Overview

CY9AF142MBPMC1-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), and 40 MHz max CPU frequency. It integrates UART/CSIO/I²C serial interfaces, 24-channel 12-bit ADC (2.0 μs conversion), 8-channel DMA, RTC, HDMI-CEC, and six low-power modes. It targets embedded motor control and industrial HMI applications requiring real-time responsiveness and code security.

For engineers reviewing the CY9AF142MBPMC1-G-JNE2 datasheet, CY9AF142MBPMC1-G-JNE2 pinout, CY9AF142MBPMC1-G-JNE2 application, or CY9AF142MBPMC1-G-JNE2 equivalent, key selection criteria include dual-bank Flash for safe firmware updates, hardware flow control on UART ch.4, 5 V-tolerant I/O on selected pins, and SWJ-DP debug support - all confirmed in Infineon's FM3 Peripheral Manual TYPE6 documentation.

Technical Context

The CY9AF142MBPMC1-G-JNE2 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 dual-operation Flash enabling concurrent read-erase-write across upper (240 KB) and lower (16 KB main + 32 KB work) banks, and split SRAM architecture (SRAM0 on I/D-code bus, SRAM1 on system bus) to reduce core-peripheral contention.

Peripheral timing is governed by five clock sources: main oscillator (4–48 MHz), sub-clock (32.768 kHz), high-speed CR (4 MHz), low-speed CR (100 kHz), and Main PLL. Clock supervision via CSV detects external clock stoppage or frequency anomaly, triggering interrupt or reset - critical for fail-safe operation in industrial controllers.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	ARM Cortex-M3 r2p1, up to 40 MHz - enables deterministic real-time execution with Thumb-2 instruction set and low-latency interrupt handling.
Flash Memory	256 KB dual-bank (240 KB upper + 16 KB lower main + 32 KB work lower) - supports background firmware update without halting application code.
SRAM	32 KB total: 16 KB SRAM0 (I/D-code bus), 16 KB SRAM1 (system bus) - isolates core fetches from peripheral DMA transfers.
ADC	24-channel 12-bit SAR, 2.0 μs conversion @ 2.7–3.6 V - meets fast sampling needs in motor current sensing and sensor fusion.
Low-Power Modes	Six modes including Deep Standby RTC/Stop with RAM retention options - extends battery life in remote HMI and metering devices.
Debug Interface	Serial Wire JTAG Debug Port (SWJ-DP) - provides non-intrusive debugging and flash programming without dedicated JTAG pins.
Operating Voltage	1.65 V to 3.6 V - compatible with single-cell Li-ion, 3.3 V logic rails, and wide-input industrial power supplies.

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
P00–P07	General-purpose I/O (Port 0)	5 V-tolerant; configurable as UART0 TX/RX, CSIO0, or base timer outputs - supports legacy 5 V peripheral interfacing.
P10–P17	General-purpose I/O (Port 1)	Supports HDMI-CEC ch.0/1, RTC alarm output, and external interrupt inputs - enables remote control and time-triggered wake-up.
P20–P27	General-purpose I/O (Port 2)	Configurable as ADC input channels (AN0–AN7), PWM outputs, or UART1 TX/RX - simplifies analog-sensor and actuator interface.
CLKIN/CLKOUT	Main clock input/output	Accepts 4–48 MHz crystal or external clock; CLKOUT mirrors internal main clock for trace or synchronization.
XTAL1/XTAL2	Sub-clock crystal connection	Drives 32.768 kHz crystal for RTC and low-power timer - enables accurate timekeeping during Stop/Deep Standby modes.
RESET	Active-low reset input	Accepts asynchronous de-bounced signal; triggers power-on, watchdog, or LVD2 reset - ensures reliable initialization under fault conditions.

Key Features

Feature	Design Value
Dual-bank Flash memory	Enables over-the-air firmware updates with zero downtime: erase/write one bank while executing from the other.
Hardware UART flow control (ch.4)	Automatically manages RTS/CTS signaling to prevent buffer overflow in high-throughput serial communication (e.g., Modbus RTU).
HDMI-CEC transceiver	Integrates full CEC protocol stack (header generation, arbitration loss detection, ACK reply) - eliminates need for external CEC PHY in AV control systems.
Split SRAM architecture	SRAM0 (I/D-code) and SRAM1 (system bus) operate independently - prevents DMA transfers from stalling CPU instruction fetches.
Clock Supervision (CSV)	Monitors external main clock stability using internal CR oscillators; asserts reset on stoppage or ±20% frequency deviation - meets IEC 61508 SIL2 requirements.

Applications

Industrial Motor Control

Smart Energy Metering

Use Scenario: Closed-loop BLDC motor drive with current sensing, PWM generation, and thermal monitoring.

IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithm, managing 24-channel ADC sampling, and generating synchronized 16-bit PWM waveforms.

Use Value: 2.0 μs ADC conversion and 40 MHz CPU enable <100 μs control loop cycles; dual-bank Flash allows field firmware patching without motor stoppage.

Use Scenario: DIN-rail mounted electricity meter with tamper detection, tariff switching, and RS-485 communication.

IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC, RTC-based billing intervals, and isolated UART/CSIO for DLMS/COSEM protocol stack.

Use Value: RTC with leap-year support and Deep Standby RTC mode maintain accurate timekeeping at <1.5 μA; LVD2 reset ensures valid metering during brownout.

Home Appliance HMI

Building Automation Controller

Use Scenario: Touch-enabled oven control panel with temperature profiling, safety interlocks, and display backlight dimming.

IC Role / Device Role / Timing Role: Embedded host processor handling capacitive touch decoding, PWM-controlled heater drivers, and HDMI-CEC remote command parsing.

Use Value: HDMI-CEC receiver with 4-byte buffer and repeat-code detection enables seamless universal remote integration; 5 V-tolerant I/O interfaces directly with legacy display drivers.

Use Scenario: BACnet MS/TP gateway connecting HVAC sensors, actuators, and building management system via RS-485.

IC Role / Device Role / Timing Role: Protocol bridge with UART-to-CSIO translation, CRC32 acceleration for BACnet frame integrity, and watchdog supervision.

Use Value: Hardware CRC32 accelerator offloads 90% of software CRC computation; SWJ-DP debug port enables in-field firmware validation without physical board access.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32F103VCT6	72 MHz Cortex-M3, 256 KB Flash, no dual-bank operation; lacks HDMI-CEC and hardware UART flow control.	Targeted at cost-sensitive motor control but requires external CEC PHY and software-managed firmware updates.	Select when higher CPU speed is prioritized over safe OTA updates and AV control integration.
RP2040	Dual-core ARM Cortex-M0+, 2 MB Flash, no hardware RTC or LVD; USB device only - no HDMI-CEC or sub-clock crystal support.	Designed for consumer IoT with USB HID, not industrial timing-critical or safety-monitored systems.	Select for USB-centric prototyping; avoid where RTC accuracy, voltage monitoring, or CEC compliance are required.

Compared with STM32F103VCT6 and RP2040, CY9AF142MBPMC1-G-JNE2 uniquely combines dual-bank Flash for robust firmware updates, integrated HDMI-CEC for AV system control, and hardware CSV/LVD for functional safety - making it optimal for certified industrial and home appliance designs.

Availability

CY9AF142MBPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, home appliance HMI, and building automation systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for CY9AF142MBPMC1-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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and embedded controllers, with global R&D and manufacturing infrastructure.

The CY9AF142MBPMC1-G-JNE2 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power industrial and consumer embedded systems requiring integrated analog peripherals, real-time responsiveness, and secure firmware execution.

FAQ

Does CY9AF142MBPMC1-G-JNE2 support external memory expansion?

No. The CY9AF142MBPMC1-G-JNE2 does not include an External Bus Interface (EBI); this feature is explicitly excluded per datasheet Rev. *D, Page 2, which states "CY9AF141LB, F142LB and F144LB do not support External Bus Interface." All memory is internal: 256 KB Flash and 32 KB SRAM.

What debug interfaces are supported, and is SWD sufficient for full development?

Only Serial Wire JTAG Debug Port (SWJ-DP) is supported - combining SWD and JTAG signals on shared pins. It provides full debug capability: breakpoint setting, memory inspection, register access, and flash programming. ETM trace is not supported on this variant, as noted in the datasheet (Rev. *D, Page 5).

How is the 5 V-tolerant I/O implemented, and which pins support it?

5 V-tolerant I/O is implemented on specific pins (e.g., P00–P07, P10–P17) using clamping diodes and voltage-level-shifted input buffers. Pin Description tables in the datasheet (Pages 16–38) confirm tolerance up to 5.5 V on designated ports - enabling direct interface with 5 V sensors, displays, or legacy logic without level shifters.

Can the RTC operate independently during Deep Standby Stop mode?

Yes. In Deep Standby Stop mode, the RTC continues counting using the 32.768 kHz sub-clock, retaining calendar data and alarm functionality. RAM retention is optional in this mode, and the RTC interrupt can wake the device - verified in Section 11 (Pin Status in Each CPU State) and Section 12.6 (LVD Characteristics) of the datasheet.

CY9AF142MBPMC1-G-JNE2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 80-LQFP

Series:: FM3 MB9A140NB

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M3

Core Size:: 32-Bit Single-Core

Speed:: 40MHz

Connectivity:: CSIO, EBI/EMI, I2C, SPI, UART/USART

Peripherals:: LVD, POR, PWM, WDT

Number of I/O:: 66

Program Memory Size:: 160KB (160K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 16K x 8

Voltage - Supply (Vcc/Vdd):: 1.65V ~ 3.6V

Data Converters:: A/D 17x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

CY9AF142MBPMC1-G-JNE2 FAQ

1.How can I place an order for CY9AF142MBPMC1-G-JNE2 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY9AF142MBPMC1-G-JNE2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY9AF142MBPMC1-G-JNE2 reliable?

The price and inventory of CY9AF142MBPMC1-G-JNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF142MBPMC1-G-JNE2 is usually 5 days.

3.What payment methods are accepted for CY9AF142MBPMC1-G-JNE2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF142MBPMC1-G-JNE2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY9AF142MBPMC1-G-JNE2?

CY9AF142MBPMC1-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY9AF142MBPMC1-G-JNE2 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY9AF142MBPMC1-G-JNE2?

For technical support, including CY9AF142MBPMC1-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF142MBPMC1-G-JNE2 requirements.

6.How does Aetrix verify that CY9AF142MBPMC1-G-JNE2 is sourced from the original manufacturer or authorized distributors?

All CY9AF142MBPMC1-G-JNE2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY9AF142MBPMC1-G-JNE2 meets industry standards.

7.What is the process for return or replacement of CY9AF142MBPMC1-G-JNE2?

All CY9AF142MBPMC1-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF142MBPMC1-G-JNE2, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY9AF142MBPMC1-G-JNE2 part is unused and in its original packaging.

Return procedure for CY9AF142MBPMC1-G-JNE2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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