Infineon Technologies CY9AF112NBGL-GK9E1
- Part No.:
- CY9AF112NBGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
CY9AF112NBGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 112BGA
- Quantity:
- Payment:

- Shipping:

Inventory:1,980
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Product details
Overview
CY9AF112NBGL-GK9E1 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 scan), and QPRC for encoder position sensing. It operates from 2.7 V to 5.5 V at up to 40 MHz and targets industrial motor drives and embedded motion control systems.
For engineers reviewing the CY9AF112NBGL-GK9E1 datasheet, CY9AF112NBGL-GK9E1 pinout, CY9AF112NBGL-GK9E1 application, or CY9AF112NBGL-GK9E1 equivalent, key selection criteria include external bus interface support (25-bit address, 8-/16-bit data, 8 chip selects), dual watchdog timers (HW + SW), CRC accelerator (CCITT CRC16/IEEE-802.3 CRC32), and SWJ-DP debug interface without ETM.
Technical Context
The CY9AF112NBGL-GK9E1 implements a deterministic real-time control architecture centered on the Arm Cortex-M3 r2p1 core, with dedicated hardware accelerators for motor timing (PPG, PWM, dead-time insertion), A/D conversion triggering, and quadrature decoding. Its memory subsystem separates instruction (SRAM0 via I-code bus) and data (SRAM1 via system bus) paths to reduce contention.
Peripheral coherency is maintained through an 8-channel DMA controller operating on a dedicated bus, enabling concurrent CPU execution and peripheral data movement. Clock supervision uses dual CR oscillators (4 MHz high-speed, 100 kHz low-speed) to monitor main and sub clocks independently, asserting reset on frequency anomaly or stop detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M3 r2p1, 40 MHz max - enables deterministic interrupt latency & RTOS compatibility |
| Flash / SRAM | 256 KB Flash (0-wait), 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1) - supports code+data separation for real-time determinism |
| ADC | 12-bit SAR, 16-channel input, 1.0 μs conversion @5 V - meets fast current-sensing requirements in motor FOC |
| Timers | 8-channel Base Timer (PWM/PPG/reload), 2-unit MF-Timer (6 output compare, 3 A/D activation), 2× QPRC - provides full encoder-based servo loop control |
| Serial Interfaces | 8-channel multi-function serial (UART/CSIO/LIN/I2C), ch.4–ch.7 with 16×9-bit FIFO - supports simultaneous motor comms (LIN), debug (UART), and sensor (I2C) |
| External Bus | 25-bit address, 8-/16-bit data, 8 chip selects - enables direct connection to external NOR Flash or SRAM for firmware expansion |
| Power Supply | 2.7 V to 5.5 V operation - allows direct interfacing with 3.3 V logic and 5 V analog/sensor domains |
Pinout & Package
Package: 100-pin LQFP (LQI100, 0.65 mm pitch), RoHS-compliant, body size 14 × 14 mm, 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (pins 1, 97, 98) | Primary power supply | Supplies core and I/O domains; decoupling required per datasheet layout guidelines |
| VSS (pins 2, 99, 100) | Ground reference | Dedicated analog/digital ground pins; must be connected to common ground plane with low-inductance path |
| P0A–P09, P20–P21, P50–P52, P60–P63, etc. | Multi-function GPIO | Configurable as UART/SIN4_2, ADC/AIN0_2, QPRC/AIN0_2, or timer outputs - port relocation via EPFR enables flexible PCB routing |
| TCK/SWCLK, TMS/SWDIO, TDO/SWO, TRSTX | SWJ-DP debug interface | Enables full JTAG/SWD debugging and trace clock (TRACECLK) without ETM - supports real-time variable monitoring in motor control loops |
| INT00_0–INT15_1 | External interrupt inputs | 16 programmable edge-sensitive inputs; NMI pin supports emergency stop signal capture with minimal latency |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Watchdog (HW WDT) | Powered by 100 kHz built-in CR oscillator - remains active in SLEEP/TIMER modes for fail-safe motor shutdown |
| CRC Accelerator | Supports CCITT CRC16 (0x1021) and IEEE-802.3 CRC32 (0x04C11DB7) - offloads integrity checks from CPU during firmware update or CAN/LIN message validation |
| Port Relocate Function | EPFR-controlled mapping of peripheral signals to alternate pins - eliminates routing congestion in dense motor-control PCB layouts |
| Low-Voltage Detection | LVD1 (interrupt) + LVD2 (reset) thresholds configurable - prevents erratic behavior during brown-out conditions in industrial power environments |
| Motor Control Timers | Dead-time insertion, DTIF emergency stop interrupt, and A/D activation compare - enables precise gate-drive timing and current-sampling synchronization |
Applications
| Industrial Motor Drive | Smart HVAC Blower Control |
|---|---|
|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC motors in factory automation systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, synchronized 12-bit ADC sampling of phase currents, and generation of complementary PWM with programmable dead time. Use Value: 40 MHz Cortex-M3 + 8-channel Base Timer + 3-unit ADC delivers <10 μs current-loop latency, meeting IEC 61800-5-2 functional safety timing constraints. |
Use Scenario: Variable-speed fan control in commercial HVAC units with LIN communication to building management systems. IC Role / Device Role / Timing Role: LIN 2.1 master node managing speed setpoints, temperature feedback via I2C sensors, and thermal protection using LVD2 reset. Use Value: Integrated LIN transceiver support (via CSIO/LIN mode) and 16-channel ADC eliminate external transceivers and analog front-ends, reducing BOM count by 3 components. |
| Programmable Power Supply | Industrial PLC I/O Module |
|
Use Scenario: Digital control of isolated DC-DC converters with voltage/current regulation and fault logging. IC Role / Device Role / Timing Role: High-resolution PWM generation (16-bit PWC timer), isolated ADC interface via SPI, and firmware update over UART with CRC-verified flash writes. Use Value: External bus interface enables direct attachment of 256 MB NOR Flash for dual-bank firmware storage, supporting zero-downtime field updates. |
Use Scenario: Modular digital input/output expansion for DIN-rail PLCs requiring 24 V tolerant isolation and deterministic scan cycles. IC Role / Device Role / Timing Role: High-speed GPIO scanning (83 pins), timestamped interrupt capture (16 external INT + NMI), and watchdog-triggered safe state entry. Use Value: 16-bit QPRC + 256 KB Flash + SWJ-DP debug enables encoder-based motion profiling and field diagnostics without external logic. |
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 (72 MHz), 256 KB Flash, 48 KB SRAM, no external bus interface, 16-bit ADC @ 5 MSPS | Lacks external memory expansion; higher ADC throughput but no QPRC or LIN protocol engine | Select when floating-point math or higher ADC sample rate is prioritized over encoder interface and external Flash support |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4 (48 MHz), 256 KB Flash, 32 KB SRAM, no external bus, 12-bit ADC @ 1.25 MSPS, no QPRC | No quadrature counter hardware; relies on software-based encoder counting with higher CPU load | Select for cost-sensitive consumer appliances where external memory and hardware QPRC are unnecessary |
Compared with STM32F303VCT6 and RA4M1, the CY9AF112NBGL-GK9E1 uniquely combines external bus expansion, dual QPRC units, and integrated LIN 2.1 protocol handling-making it optimal for industrial motor drives requiring encoder feedback, firmware scalability, and automotive-grade communication.
Availability
CY9AF112NBGL-GK9E1 is available at Aetrix Electronics and suitable for industrial motor drives, smart HVAC blower control, and programmable power supplies requiring stable component supply across extended product lifecycles.
Supply support for CY9AF112NBGL-GK9E1 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and embedded controllers with emphasis on reliability and industrial longevity.
The CY9AF112NBGL-GK9E1 belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-sensitive, high-reliability embedded motor control and industrial automation applications requiring integrated analog, timing, and communication peripherals.
FAQ
Does CY9AF112NBGL-GK9E1 support external memory expansion?
Yes. It integrates a full External Bus Interface supporting 25-bit addressing, 8-/16-bit data width, up to 8 chip selects, and interfaces with SRAM and NOR Flash devices. Maximum addressable space is 256 MB, and address/data multiplexing is supported per datasheet section 12.4.3.
What debug interface does CY9AF112NBGL-GK9E1 provide?
The device features a Serial Wire JTAG Debug Port (SWJ-DP) compliant with ARM CoreSight standards. It supports full SWD and JTAG protocols for programming and real-time debugging but does not include Embedded Trace Macrocell (ETM) - trace capability is limited to SWO output via TRACEDx pins.
Is hardware LIN protocol support built-in?
Yes. The multi-function serial interface includes native LIN 2.1 protocol support in dedicated LIN mode, with hardware break field generation (13–16 bit), break delimiter control (1–4 bit), and automatic checksum calculation - eliminating need for software bit-banging or external transceivers.
How many ADC channels and what resolution does it offer?
The CY9AF112NBGL-GK9E1 integrates three 12-bit successive approximation ADC units supporting up to 16 total input channels. Conversion time is 1.0 μs at 5 V supply, with priority-based and scanning modes plus 16-step FIFO for scan results - optimized for motor phase current sampling.
CY9AF112NBGL-GK9E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 112-LFBGA
- Series:
- FM3 MB9A110A
- 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, 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:
CY9AF112NBGL-GK9E1 FAQ
1.How can I place an order for CY9AF112NBGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF112NBGL-GK9E1 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 CY9AF112NBGL-GK9E1 reliable?
The price and inventory of CY9AF112NBGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF112NBGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AF112NBGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF112NBGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF112NBGL-GK9E1?
CY9AF112NBGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF112NBGL-GK9E1 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 CY9AF112NBGL-GK9E1?
For technical support, including CY9AF112NBGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF112NBGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AF112NBGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AF112NBGL-GK9E1 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 CY9AF112NBGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AF112NBGL-GK9E1?
All CY9AF112NBGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF112NBGL-GK9E1, 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 CY9AF112NBGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AF112NBGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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