Infineon Technologies CY9AF111NAPF-G-JNE1
- Part No.:
- CY9AF111NAPF-G-JNE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-BQFP
- Datasheet:
-
CY9AF111NAPF-G-JNE1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100QFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,152
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Product details
Overview
CY9AF111NAPF-G-JNE1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 64 KB on-chip Flash, 16 KB SRAM, 40 MHz max CPU frequency, 12-bit ADC (9 channels), and 8-channel DMA. It integrates UART/CSIO/LIN/I²C serial interfaces, motor control timers (PWM, PPG, QPRC), and operates from 2.7 V to 5.5 V - deployed in industrial motor drives and embedded control systems.
For engineers reviewing the CY9AF111NAPF-G-JNE1 datasheet, CY9AF111NAPF-G-JNE1 pinout, CY9AF111NAPF-G-JNE1 application, or CY9AF111NAPF-G-JNE1 equivalent, key selection criteria include its LQFP-100 package, dual watchdog (HW/SW), CRC accelerator (CRC16/CRC32), external bus interface support (21-bit address, 8-bit data), and port relocation capability for flexible peripheral mapping.
Technical Context
This MCU implements a deterministic real-time execution environment via the Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels. Its memory subsystem includes two independent SRAM banks (SRAM0 for I/D-code, SRAM1 for system bus) enabling concurrent CPU and DMA access without contention.
The peripheral set is optimized for motion control: dual QPRC units track encoder position/revolution; base timers support PWM/PPG/PWC modes; multi-function timers provide input capture, output compare, and A/D activation triggers; LIN 2.1 support enables automotive sub-system communication with break field programmability (13–16 bit).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 40 MHz max - delivers deterministic interrupt latency and Thumb-2 instruction efficiency for real-time control loops. |
| Memory | 64 KB Flash (0-wait-state), 16 KB SRAM (split into SRAM0/SRAM1) - enables fast code execution and concurrent DMA-to-SRAM transfers. |
| ADC | 12-bit SAR, 9 channels, 1.0 μs conversion @ 5 V - supports high-resolution sensor feedback in motor current/voltage sensing. |
| Timers | 8× base timers (PWM/PPG/reload), 2× QPRC, 2× multi-function timers (3× free-run, 4× input capture, 6× output compare) - provides full motor commutation and position tracking. |
| Serial Interfaces | 8-channel multi-function serial (UART/CSIO/LIN/I²C), with ch.4–ch.7 featuring 16×9-bit FIFO - reduces CPU overhead in protocol-heavy communication stacks. |
| Power & Safety | 2.7–5.5 V supply, dual LVD (interrupt/reset), Clock Supervisor (CSV), HW/SW watchdog - ensures robust operation in industrial voltage environments. |
| Debug | SWJ-DP (no ETM) - enables standard JTAG/SWD debugging without trace overhead, suitable for production firmware validation. |
Pinout & Package
LQFP-100 package (0.65 mm pitch, 14 × 14 mm body), RoHS-compliant, with exposed thermal pad. Pin assignment follows LQI100 top-view layout per datasheet page 7; includes dedicated trace/debug pins (TRSTX, TCK, TMS, TDI, TDO, SWO), motor control signals (TIOA/Bx, AIN/BIN/ZIN), and peripheral multiplexing via EPFR register.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/TRSTX/MCSX7_1 | JTAG Test Reset / Memory Chip Select | Active-low debug reset; configurable as CS for external memory expansion. |
| P01/TCK/SWCLK | JTAG Clock / SWD Clock | Primary clock input for boundary-scan and serial-wire debug sessions. |
| P02/TDI/MCSX6_1 | JTAG Data In / Memory Chip Select | Serial input for JTAG instructions; also serves as secondary chip select. |
| P03/TMS/SWDIO | JTAG Mode Select / SWD I/O | Controls JTAG state machine; bidirectional for SWD protocol. |
| P04/TDO/SWO | JTAG Data Out / Serial Wire Output | Asynchronous trace output for printf-style debugging without halting CPU. |
| P05/TRACED0/TIOA5_2/... | Trace Data / Timer Output A | Supports real-time instruction trace or PWM output on same pin via function select. |
| P50/INT00_0/AIN0_2/... | External Interrupt / ADC Input | Configurable as edge-triggered interrupt source or analog input for channel 0. |
| P20/INT05_0/CROUT_0/... | Interrupt / Clock Output | Provides programmable clock output (e.g., for external logic or sensor sync). |
Key Features
| Feature | Design Value |
|---|---|
| Port Relocation | Per-pin peripheral function assignment via Extended Port Function Register (EPFR) - eliminates PCB redesign when signal routing conflicts arise. |
| CRC Accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 calculation - offloads integrity checks from CPU during firmware updates or CAN/LIN message validation. |
| Dual Watchdog | Independent hardware (CR oscillator-clocked) and software watchdogs - ensures fail-safe reset even during deep sleep or clock failure. |
| Motor Control Peripherals | QPRC (quadrature encoder counter), DTIF (emergency stop interrupt), dead-time insertion support - enables safe, precise BLDC/PMSM drive implementation. |
| Low-Power Modes | SLEEP, TIMER, STOP modes with wake-up via watch counter or external interrupt - extends battery life in portable industrial tools. |
Applications
| Industrial Motor Drive | Automotive Body Control Module |
|---|---|
|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using QPRC for rotor position, PWM timers for gate driving, and ADC for phase current sampling. Use Value: Integrated motor peripherals reduce external component count by 30% vs. discrete timer/counter solutions while maintaining <1 μs interrupt latency. |
Use Scenario: Centralized control of door locks, window lifts, and mirror adjustment in entry-level vehicles. IC Role / Device Role / Timing Role: LIN 2.1 master node managing slave ECUs; uses built-in LIN break generation and error detection for robust sub-bus communication. Use Value: Eliminates need for external LIN transceiver in cost-sensitive modules, with programmable break length (13–16 bit) meeting OEM timing requirements. |
| Smart Power Tool Controller | Programmable Logic Controller I/O Module |
|
Use Scenario: Battery-powered cordless drill with torque limiting, RPM regulation, and thermal protection. IC Role / Device Role / Timing Role: ADC monitors battery voltage/current; dual LVD triggers graceful shutdown; CRC accelerator validates firmware updates over UART. Use Value: Single-chip solution meets IEC 61000-4-5 surge immunity requirements via internal voltage monitoring and watchdog coverage across all power modes. |
Use Scenario: DIN-rail mounted digital I/O expansion module for PLC backplanes with isolated inputs/outputs. IC Role / Device Role / Timing Role: Configurable GPIO with port relocation routes 51 fast I/O pins to match field wiring; external bus interface connects to SPI/I²C isolators. Use Value: Supports hot-swap configuration via EPFR register writes, enabling runtime reassignment of input/output functions without firmware reload. |
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 |
|---|---|---|---|
| STM32F103C8T6 | 72 MHz Cortex-M3, 64 KB Flash, 20 KB RAM, no QPRC or LIN; USB 2.0 FS interface included. | Lacks integrated quadrature encoder counters and LIN protocol engine - requires external components for motor position sensing or automotive sub-networks. | Select when USB host/device connectivity is required and motor control complexity is low (e.g., simple speed control without position feedback). |
| NXP LPC1769FBD100 | 100 MHz Cortex-M3, 512 KB Flash, 64 KB RAM, Ethernet MAC, no CSV or dual LVD; supports external SDRAM. | Higher performance and memory but lacks Clock Supervisor and failsafe LVD2 auto-reset - less suited for safety-critical industrial resets. | Prefer for networked edge devices needing Ethernet or large buffer storage, where clock supervision is handled externally. |
Compared with STM32F103C8T6 and LPC1769FBD100, CY9AF111NAPF-G-JNE1 offers superior integration for motion control (QPRC, DTIF, LIN) and functional safety features (CSV, dual LVD, HW watchdog), at the expense of general-purpose connectivity like USB or Ethernet.
Availability
CY9AF111NAPF-G-JNE1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, smart power tools, and programmable logic controller I/O modules requiring stable component supply across extended product lifecycles.
Supply support for CY9AF111NAPF-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 ICs, and embedded controllers, with global manufacturing and quality certification to ISO 9001 and IATF 16949.
This device belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-sensitive, high-reliability industrial and automotive embedded control applications requiring integrated motor peripherals and functional safety features.
FAQ
What is the maximum operating frequency and voltage range for CY9AF111NAPF-G-JNE1?
The CY9AF111NAPF-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 interfacing with both 3.3 V and 5 V peripheral logic without level shifters, and maintains stable timing across industrial-grade power rails with ±10% variation.
Does CY9AF111NAPF-G-JNE1 support hardware flow control on UART channels?
No - hardware flow control (CTS/RTS) is explicitly excluded for CY9AF111LA/F112LA/F114LA variants per datasheet footnote on page 2. Only UART channels 4–7 support FIFO buffering; none support automatic RTS/CTS handshaking, requiring software-based flow control or external logic for high-throughput serial links.
Can the external bus interface be used with this part?
No - the CY9AF111NAPF-G-JNE1 (as a CY9AF111xx variant) does not support the external bus interface. Datasheet Table 1 (page 5) confirms "–" under External Bus Interface for all CY9AF111xx parts, limiting memory expansion to on-chip Flash and SRAM only.
Is SWD debugging supported, and what debug features are included?
Yes - CY9AF111NAPF-G-JNE1 supports Serial Wire Debug (SWD) via SWJ-DP (Serial Wire JTAG Debug Port). It includes TRSTX, TCK, TMS, TDI, TDO, and SWO pins for full debug visibility, but excludes Embedded Trace Macrocell (ETM), meaning instruction trace is limited to SWO-based printf-style output rather than full program flow capture.
CY9AF111NAPF-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:
- 64KB (64K 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:
CY9AF111NAPF-G-JNE1 FAQ
1.How can I place an order for CY9AF111NAPF-G-JNE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF111NAPF-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 CY9AF111NAPF-G-JNE1 reliable?
The price and inventory of CY9AF111NAPF-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 CY9AF111NAPF-G-JNE1 is usually 5 days.
3.What payment methods are accepted for CY9AF111NAPF-G-JNE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF111NAPF-G-JNE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF111NAPF-G-JNE1?
CY9AF111NAPF-G-JNE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF111NAPF-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 CY9AF111NAPF-G-JNE1?
For technical support, including CY9AF111NAPF-G-JNE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF111NAPF-G-JNE1 requirements.
6.How does Aetrix verify that CY9AF111NAPF-G-JNE1 is sourced from the original manufacturer or authorized distributors?
All CY9AF111NAPF-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 CY9AF111NAPF-G-JNE1 meets industry standards.
7.What is the process for return or replacement of CY9AF111NAPF-G-JNE1?
All CY9AF111NAPF-G-JNE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF111NAPF-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 CY9AF111NAPF-G-JNE1 part is unused and in its original packaging.
Return procedure for CY9AF111NAPF-G-JNE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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