Infineon Technologies CY9AFA44LBPMC-G-JNE2

Overview

CY9AFA44LBPMC-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 integrated peripherals including LCD controller (40×8 SEG/COM), 24-channel 12-bit ADC (2.0 μs conversion), and 8-channel DMA. It operates at up to 40 MHz and supports six low-power modes, targeting embedded control in industrial HMI and appliance panels.

For engineers reviewing the CY9AFA44LBPMC-G-JNE2 datasheet, CY9AFA44LBPMC-G-JNE2 pinout, CY9AFA44LBPMC-G-JNE2 application, or CY9AFA44LBPMC-G-JNE2 equivalent, key selection criteria include its dual-bank Flash architecture for seamless firmware updates, LCD driver with internal bias resistors, absence of external bus interface and hardware flow control (per datasheet Rev. *D), and 1.65–3.6 V supply range with RTC- and Stop-mode retention options.

Technical Context

This MCU implements the 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 eight base timers (configurable as PWM, PPG, reload, or PWC), two watchdogs (hardware clocked by 100 kHz CR oscillator, active in all low-power modes except Deep Standby), and HDMI-CEC/remote receiver with 4-byte buffer and repeat-code detection-optimized for consumer remote interface applications requiring low-latency wake-up and protocol compliance.

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 CY9AFA44LBPMC-G-JNE2, CY9AA42LBPMC-G-JNE2 reduces Flash and removes display/remote features for lower cost, while STM32F103VCT6 trades integrated peripherals for broader ecosystem support and higher memory bandwidth - making each optimal for distinct HMI vs. general-control trade-offs.

Availability

CY9AFA44LBPMC-G-JNE2 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI display modules, smart thermostat interfaces, and remote-controlled consumer devices requiring stable component supply and long-term lifecycle support.

Supply support for CY9AFA44LBPMC-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 R&D infrastructure.

This device belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power embedded control in appliances, industrial HMIs, and remote-interface applications with integrated LCD and CEC capabilities.

FAQ

Does CY9AFA44LBPMC-G-JNE2 support external bus interface?

No. According to the official datasheet (Rev. *D, page 2), CY9AFA44LBPMC-G-JNE2 explicitly does not support External Bus Interface - unlike earlier CY9AA40NB variants such as CY9AA40NBPMC-G-JNE2. This omission reduces pin count and simplifies PCB layout for display-focused applications where external memory expansion is unnecessary.

What LCD configurations does CY9AFA44LBPMC-G-JNE2 support?

The device supports 40 SEG × 8 COM LCD drive with selectable 4-COM or 8-COM mode. It integrates internal dividing resistors and provides dedicated VV0–VV4 bias voltage pins, eliminating external resistor networks. The controller also includes blinking control and supports static or multiplexed segment driving without external charge pumps.

Can CY9AFA44LBPMC-G-JNE2 operate from a single 3.0 V battery?

Yes. Its operating voltage range is 1.65 V to 3.6 V, and it maintains full functionality-including LCD driving (with VCC ≥ 2.2 V) and 24-channel ADC sampling-at 3.0 V. The built-in low-speed CR oscillator (100 kHz) remains active down to 1.65 V, ensuring reliable watchdog operation during brown-out conditions.

Is hardware flow control available on UART channels?

No. Datasheet Rev. *D (page 2) states that CY9AFA44LBPMC-G-JNE2 does not support hardware flow control (CTS/RTS), even on channel 4 where it is implemented in other FM3 series members. UART communication relies on software handshaking or FIFO buffering (available on channels 4–7) for data integrity under high-load conditions.