Infineon Technologies CY9AF156NAPMC-G-JNE2

Overview

CY9AF156NAPMC-G-JNE2 from Spansion (now Cypress Semiconductor, part of Infineon) is a 32-bit ARM Cortex-M3 microcontroller with dual-bank 512 KB Flash (496 KB upper + 16 KB lower), 64 KB on-chip SRAM (32 KB SRAM0 + 32 KB SRAM1), and integrated peripherals including 24-channel 12-bit ADC (2.0 µs conversion), 16-channel base timer, HDMI-CEC/remote control interface, RTC, and dual watchdog timers. It operates up to 40 MHz at 1.65–3.6 V and targets low-power industrial control and embedded HMI applications.

For engineers reviewing the CY9AF156NAPMC-G-JNE2 datasheet, CY9AF156NAPMC-G-JNE2 pinout, CY9AF156NAPMC-G-JNE2 application, or CY9AF156NAPMC-G-JNE2 equivalent, key selection criteria include dual-bank Flash execution capability, 103 GPIOs in 120-pin LQFP package, hardware CRC acceleration (CCITT CRC16/IEEE-802.3 CRC32), and six configurable low-power modes including Deep Standby RTC/STOP with RAM retention options.

Technical Context

This MCU implements the ARMv7-M architecture (Cortex-M3 r2p1) with tightly coupled I/D buses and an integrated Nested Vectored Interrupt Controller supporting 48 peripheral interrupts and 16 priority levels. Its memory subsystem includes dual-operation Flash enabling concurrent read-while-erase/write per bank and two independent SRAM blocks-SRAM0 on I/D bus for code/data, SRAM1 on system bus for DMA-accessible buffers.

The peripheral set is optimized for real-time embedded control: multi-function serial interfaces support UART/CSIO/I²C on up to 16 channels with 16-step FIFOs; the A/D converter features scanning mode with 16-step FIFO and 2-level priority; QPRC provides 16-bit position/revolution counting with configurable AIN/BIN/ZIN edge detection; and the multi-function timer integrates PWM, dead-time insertion, and motor emergency stop (DTIF) interrupt for motion control.

Key Specifications

Pinout & Package

CY9AF156NAPMC-G-JNE2 is housed in a 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are fully defined in the MB9AF156RA datasheet Section "LIST OF PIN FUNCTIONS", including dedicated signals for external bus interface (8 chip selects, 25-bit address), HDMI-CEC (CEC0/CEC1), QPRC (AIN0–2/BIN0–2/ZIN0–2), and SWJ-DP debug (SWDIO/SWCLK/NRESET).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB9AF156RAPMC-G-JNE2, CY9AF156NAPMC-G-JNE2 trades temperature rating for lower cost in commercial environments; compared with MB9AF155NAPMC-G-JNE2, it adds 128 KB Flash, 16 KB SRAM, HDMI-CEC, and 87 additional GPIOs - justifying its use in feature-rich HMI and multi-peripheral control systems.

Availability

CY9AF156NAPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart home hubs, energy metering terminals, and low-power sensor nodes requiring stable component supply and long-term production continuity.

Supply support for CY9AF156NAPMC-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

Spansion Inc., acquired by Cypress Semiconductor in 2015 and later by Infineon Technologies in 2020, specialized in flash memory and microcontrollers for embedded systems before integration into Infineon's broader MCU portfolio.

The MB9A150RA series was designed specifically for cost-sensitive, low-power industrial and consumer embedded controllers - emphasizing dual-bank Flash reliability, rich analog/motor control peripherals, and deep sleep efficiency without sacrificing ARM Cortex-M3 performance.

FAQ

What is the maximum operating frequency and voltage range for CY9AF156NAPMC-G-JNE2?

The CY9AF156NAPMC-G-JNE2 operates at up to 40 MHz across a supply voltage range of 1.65 V to 3.6 V. Its internal PLL accepts 4–48 MHz input clocks, and the built-in high-speed CR oscillator runs at 4 MHz. The device maintains full functionality-including Flash access, ADC operation, and peripheral timing-within this voltage window, with LVD1/LVD2 providing programmable brown-out detection thresholds.

Does CY9AF156NAPMC-G-JNE2 support in-system programming and secure firmware updates?

Yes. Its dual-bank Flash architecture allows one bank to execute code while the other is erased or reprogrammed, enabling true in-system programming without halting operation. Code protection is implemented via Flash security bits that lock read/write access to designated memory regions. The CRC accelerator further supports firmware integrity verification during OTA updates using CCITT CRC16 or IEEE-802.3 CRC32 checksums.

How many I/O pins are available, and what are their electrical characteristics?

The CY9AF156NAPMC-G-JNE2 provides up to 103 general-purpose I/O pins in its 120-pin LQFP package. Selected pins are 5V-tolerant for interfacing with legacy 5V logic. Each pin supports individual pull-up control, direct level readback, and peripheral function relocation. I/O types include CMOS input/output, open-drain (for CEC/IR), and analog input (for ADC channels), as detailed in the "I/O CIRCUIT TYPE" section of the datasheet.

What debug interfaces are supported, and is JTAG available?

The device supports Serial Wire JTAG Debug Port (SWJ-DP) with SWDIO, SWCLK, and NRESET pins - compatible with standard ARM CoreSight debug tools. JTAG TDI/TDO/TMS/TCK signals are not physically present; only SWD mode is implemented. Embedded Trace Macrocell (ETM) is not included in this variant (as noted in the datasheet footnote), limiting real-time instruction trace capability, though SWD provides full breakpoint, watchpoint, and memory access debugging.