Infineon Technologies CY9AF112NAPF-G-JNE1
- Part No.:
- CY9AF112NAPF-G-JNE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-BQFP
- Datasheet:
-
CY9AF112NAPF-G-JNE1.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100QFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY9AF112NAPF-G-JNE1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 256 KB on-chip Flash, 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), 100-pin LQFP package, and integrated motor control peripherals including 8-channel Base Timers, 3-unit 12-bit ADC (16-channel total), and QPRC for encoder position sensing - deployed in industrial motor drives and HVAC blower control systems.
For engineers reviewing the CY9AF112NAPF-G-JNE1 datasheet, CY9AF112NAPF-G-JNE1 pinout, CY9AF112NAPF-G-JNE1 application, or CY9AF112NAPF-G-JNE1 equivalent, key selection criteria include its 40 MHz max CPU frequency, dual watchdog (HW + SW), external bus interface (25-bit address, 8-/16-bit data, 8 chip selects), CRC accelerator (CCITT CRC16/IEEE-802.3 CRC32), and support for LIN 2.1, UART, I²C, and CSIO across up to 8 serial channels.
Technical Context
This MCU implements a tightly coupled 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 zero-wait-state Flash execution and dual-bus SRAM architecture - SRAM0 connected to I-code/D-code buses for instruction/data caching, SRAM1 on system bus for DMA-accessible buffers.
The peripheral set is optimized for real-time motor control: Base Timers support PWM/PPG/PWC/reload modes; Multi-function Timers provide input capture, output compare, A/D activation, and waveform generation; QPRC units accept quadrature A/B/Z inputs with configurable edge detection and dual 16-bit counters; and the 12-bit ADC achieves 1.0 μs conversion at 5 V with FIFO-based scanning and priority-level arbitration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time task execution with low-latency interrupt handling. |
| Flash Memory | 256 KB, zero-wait-state read - supports fast code execution without pipeline stalls in time-critical control loops. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1) - separates cacheable core access from DMA-accessible data buffers. |
| ADC | 12-bit, 16-channel, 1.0 μs conversion @ 5 V - captures analog sensor/motor feedback with sufficient resolution and speed for closed-loop control. |
| Serial Interfaces | 8-channel multi-function interface (UART/CSIO/LIN/I²C) - provides protocol flexibility for motor driver communication, diagnostics, and sensor interfacing. |
| Timers | 8-channel Base Timer + 2-unit Multi-function Timer + 2-unit QPRC - delivers comprehensive timing, waveform generation, and encoder position tracking in one device. |
| Power Supply | 2.7 V to 5.5 V operation - accommodates wide-input industrial power rails and battery-backed subsystems. |
Pinout & Package
Package: 100-pin LQFP (LQI100), 0.65 mm pitch, RoHS-compliant, surface-mount. Thermal pad not present. Compatible with standard reflow profiles per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1, 97–100) | Core & I/O Power Supply | Dual-supply domain: pins 1/97–100 supply digital logic and I/O banks; decoupling required per datasheet layout guidelines. |
| VSS (Pins 2, 95–96) | Digital Ground | Common reference for core, peripherals, and I/O; separation from analog ground recommended for ADC accuracy. |
| P0A–P09 (Pins 3–12) | Multi-function I/O Port Group 0 | Supports trace clock/data, TIOx timers, INTx interrupts, FRCK1, MCSX signals - port relocation via EPFR enables flexible peripheral mapping. |
| P60–P63 (Pins 61–64) | Peripheral Function Pins | Host SIN5/SOT5/SCK5 (serial), TIOA2/TIOB2 (timer), INT15 (interrupt), MRDY (external ready) - critical for external bus handshake and high-speed comms. |
| P50–P51 (Pins 51–52) | Analog Input & Encoder Interface | AIN0_2/BIN0_2 accept quadrature encoder A/B signals; also serve as ADC inputs - direct connection to motor position sensors without external conditioning. |
Key Features
| Feature | Design Value |
|---|---|
| External Bus Interface | 25-bit address / 8-/16-bit data / 8 chip selects - enables direct connection to external SRAM, NOR Flash, or FPGA co-processors for extended memory or offload tasks. |
| CRC Accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 - reduces CPU load for firmware integrity checks, communication frame validation, and secure boot verification. |
| Dual Watchdog System | Independent HW (CR oscillator) and SW watchdogs - ensures fail-safe reset during deep-sleep modes or software hangs, meeting IEC 61508 SIL-2 requirements. |
| Port Relocate Function | EPFR-controlled pin assignment - allows dynamic remapping of UART, timer, or ADC functions to alternate pins, simplifying PCB layout and enabling design reuse across variants. |
| Low-Voltage Detection | LVD1 (interrupt) + LVD2 (reset) thresholds - provides graded response to brown-out conditions, preserving state before shutdown and enabling graceful fault recovery. |
Applications
| Industrial Motor Drives | HVAC Blower Control |
|---|---|
Use Scenario: Closed-loop control of 3-phase PMSM/BLDC motors in factory automation systems requiring precise torque/speed regulation and field-oriented control (FOC). IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, generating PWM gate signals via Base Timers, sampling current/voltage via 12-bit ADC, and monitoring rotor position via QPRC. Use Value: Integrated motor control peripherals eliminate external timer/counter ICs; 256 KB Flash stores complex control firmware and safety routines; 32 KB SRAM buffers ADC samples and PWM duty-cycle tables. | Use Scenario: Variable-speed fan control in commercial HVAC units, responding to temperature, pressure, and air quality sensor inputs. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition (ADC), fan speed modulation (PWM), communication with building management systems (LIN 2.1), and thermal protection (LVD/Clock Supervisor). Use Value: Single-chip solution replaces discrete MCU + LIN transceiver + analog front-end; LIN support enables interoperability with BACnet MS/TP networks; wide 2.7–5.5 V supply tolerates HVAC power fluctuations. |
| Programmable Logic Controllers (PLCs) | Industrial IoT Gateways |
Use Scenario: Compact PLC modules performing discrete I/O control, PID loop execution, and HMI communication in distributed control cabinets. IC Role / Device Role / Timing Role: Real-time controller running ladder logic interpreter, scanning 16+ digital inputs/outputs, executing 4+ concurrent PID loops, and communicating via UART/I²C to displays or sensors. Use Value: 83 GPIOs (in 100-pin package) support dense I/O expansion; external bus interface connects to parallel I/O expanders or configuration EEPROM; CRC accelerator secures firmware updates over fieldbus. | Use Scenario: Edge node aggregating data from multiple industrial sensors (temperature, vibration, current) and transmitting to cloud platforms via Ethernet or cellular modems. IC Role / Device Role / Timing Role: Secure data concentrator performing sensor fusion, local anomaly detection, encrypted data packaging, and protocol translation (Modbus RTU to MQTT). Use Value: Hardware CRC32 accelerates TLS packet signing; 256 KB Flash hosts dual-application firmware (sensor stack + comms stack); SWJ-DP debug port enables remote firmware patching in deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit motor control microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F303VCT6 | ARM Cortex-M4F core, 72 MHz, 256 KB Flash, 48 KB SRAM, but no external bus interface or QPRC; includes FPU and op-amps. | Lacks encoder interface and external memory expansion - suitable for sensor-rich but memory-light motor control where analog signal conditioning is needed on-chip. | Select when FPU-based floating-point math or integrated analog comparators are required, and external memory is unnecessary. |
| RA6M3GFP | ARM Cortex-M4, 200 MHz, 1 MB Flash, 384 KB SRAM, includes CAN FD and Ethernet MAC, but no dedicated QPRC or external bus interface. | Targets higher-tier industrial networking; lacks hardware QPRC - requires software-based quadrature decoding, increasing CPU load and reducing real-time margin. | Select when CAN FD/Ethernet connectivity is mandatory and motor position sensing is handled by external ASIC or FPGA. |
Compared with STM32F303VCT6 and RA6M3GFP, CY9AF112NAPF-G-JNE1 uniquely combines QPRC hardware, external bus support, and LIN 2.1 in a cost-optimized Cortex-M3 platform - making it optimal for resource-constrained, encoder-driven motor control where memory expansion and protocol diversity are essential.
Availability
CY9AF112NAPF-G-JNE1 is available at Aetrix Electronics and suitable for industrial motor drives, HVAC blower control, programmable logic controllers (PLCs), and industrial IoT gateways requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY9AF112NAPF-G-JNE1 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 solutions, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
The CY9AF112NAPF-G-JNE1 belongs to Infineon's FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-sensitive, high-reliability embedded motor control and industrial automation applications demanding integrated timing, analog, and communication peripherals.
FAQ
What is the maximum operating frequency and voltage range for CY9AF112NAPF-G-JNE1?
The CY9AF112NAPF-G-JNE1 operates at up to 40 MHz and supports a supply voltage range of 2.7 V to 5.5 V. This wide voltage tolerance allows direct integration into industrial 3.3 V and 5 V systems without level-shifting, and the 40 MHz clock enables sub-microsecond interrupt latency for fast motor control loop closure.
Does CY9AF112NAPF-G-JNE1 support hardware quadrature decoding?
Yes - it integrates two Quadrature Position/Revolution Counter (QPRC) units, each accepting AIN/BIN/ZIN inputs with configurable edge detection, 16-bit position/revolution counters, and dual compare registers. This eliminates the need for external counter ICs or CPU-intensive software quadrature decoding in servo and BLDC applications.
Is external memory expansion supported, and what interfaces are available?
Yes - the device includes a full External Bus Interface supporting SRAM and NOR Flash with up to 25-bit addressing (128 MB per chip select), 8-/16-bit data width, 8 chip selects, and external RDY handshake. This enables expansion beyond on-chip 256 KB Flash and 32 KB SRAM for firmware overlays, data logging, or FPGA co-processing.
What debug and trace capabilities does CY9AF112NAPF-G-JNE1 provide?
It features Serial Wire JTAG Debug Port (SWJ-DP) and Embedded Trace Macrocell (ETM) support, enabling real-time instruction tracing, breakpoint setting, and memory inspection. The TRACED0–TRACED3 and TRACECLK pins on Port 0 provide four-bit trace clock/data output, essential for optimizing motor control loop timing and diagnosing race conditions in multi-interrupt environments.
CY9AF112NAPF-G-JNE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-BQFP
- Series:
- FM3 MB9A110A
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 40MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF112NAPF-G-JNE1 FAQ
1.How can I place an order for CY9AF112NAPF-G-JNE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF112NAPF-G-JNE1 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 CY9AF112NAPF-G-JNE1 reliable?
The price and inventory of CY9AF112NAPF-G-JNE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF112NAPF-G-JNE1 is usually 5 days.
3.What payment methods are accepted for CY9AF112NAPF-G-JNE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF112NAPF-G-JNE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF112NAPF-G-JNE1?
CY9AF112NAPF-G-JNE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF112NAPF-G-JNE1 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 CY9AF112NAPF-G-JNE1?
For technical support, including CY9AF112NAPF-G-JNE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF112NAPF-G-JNE1 requirements.
6.How does Aetrix verify that CY9AF112NAPF-G-JNE1 is sourced from the original manufacturer or authorized distributors?
All CY9AF112NAPF-G-JNE1 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 CY9AF112NAPF-G-JNE1 meets industry standards.
7.What is the process for return or replacement of CY9AF112NAPF-G-JNE1?
All CY9AF112NAPF-G-JNE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF112NAPF-G-JNE1, 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 CY9AF112NAPF-G-JNE1 part is unused and in its original packaging.
Return procedure for CY9AF112NAPF-G-JNE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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