Infineon Technologies CY9AF156MBBGL-GE1
- Part No.:
- CY9AF156MBBGL-GE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 96-LFBGA
- Datasheet:
-
CY9AF156MBBGL-GE1.pdf
- Description:
- IC MCU 32BIT 544KB FLASH 96FBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY9AF156MBBGL-GE1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 512 KB dual-bank Flash (496 KB upper + 16 KB lower), 64 KB on-chip SRAM (32 KB SRAM0 + 32 KB SRAM1), and operation up to 40 MHz. It integrates UART/CSIO/I²C serial interfaces, 24-channel 12-bit ADC (2.0 µs conversion), 16-channel base timer, RTC, QPRC, HDMI-CEC, and six low-power modes - deployed in industrial motor control and embedded HMI systems.
For engineers reviewing the CY9AF156MBBGL-GE1 datasheet, CY9AF156MBBGL-GE1 pinout, CY9AF156MBBGL-GE1 application, or CY9AF156MBBGL-GE1 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, 5 V-tolerant GPIO support (up to 103 pins in LQFP-120), hardware CRC acceleration (CRC16/CRC32), SWJ-DP debug interface, and sub-3.6 V supply range (1.65–3.6 V).
Technical Context
This MCU implements a full 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 architecture includes a multi-function serial interface with 16 configurable channels (UART/CSIO/I²C), dual 12-bit ADC units with FIFO-based scanning and priority conversion, and dedicated motor-control blocks: PWM/PPG timers, dead-time insertion, DTIF interrupt, and quadrature encoder input via QPRC with AIN/BIN/ZIN edge configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time execution with Thumb-2 instruction set and NVIC for low-latency interrupt handling. |
| Flash Memory | 512 KB dual-bank (496 KB upper + 16 KB lower), 0-wait-state read - supports background erase/write during code execution for OTA updates. |
| SRAM | 64 KB total (32 KB SRAM0 on I/D bus + 32 KB SRAM1 on system bus) - allows parallel CPU fetch and DMA data movement without bus arbitration delay. |
| ADC | 2 × 12-bit SAR, 24 channels, 2.0 µs conversion @ 2.7–3.6 V - delivers high-speed analog sensing for motor current/voltage feedback loops. |
| Timers | 16-channel base timer (PWM/PPG/reload/PWC), QPRC (16-bit position + 16-bit revolution counters), dual 32/16-bit down counters - provides precise motion control timing and encoder position tracking. |
| Communication | 16-channel multi-function serial (UART/CSIO/I²C), 2× HDMI-CEC, 2× remote control RX - enables concurrent device management, consumer electronics control, and sensor network interfacing. |
| Power | 1.65–3.6 V supply, six low-power modes (Deep Standby RTC/Stop with RAM retention options) - extends battery life in portable and energy-sensitive embedded applications. |
Pinout & Package
The CY9AF156MBBGL-GE1 is housed in a 120-pin LQFP (LQM120) package with exposed thermal pad, RoHS-compliant, and rated for industrial temperature range (–40°C to +85°C). Pin functions are fully documented in Section 3.1 of datasheet 002-05646 Rev. *F.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated power/ground pairs per functional block reduce noise coupling; 1.65–3.6 V operation enables single-supply design with Li-ion or 3.3 V rails. |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–48 MHz external crystals for precise clock generation; paired with Main PLL for stable 40 MHz core frequency. |
| OSC32K / OSC32KOUT | 32.768 kHz sub-clock input/output | Drives RTC and wake-up timers independently; enables timekeeping and low-power periodic wake-up without main oscillator activation. |
| MD0 | Boot mode select | Configures boot source (Flash/SRAM) at reset; critical for secure firmware initialization and recovery sequences. |
| INITX | External reset input | Active-low asynchronous reset pin - allows external supervisory IC or system-level reset coordination. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | Up to 103 pins support 5 V-tolerant I/O, port relocation, and pull-up control - simplifies interface to legacy peripherals and level-shifting-free designs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables simultaneous read from one bank while erasing/writing the other - essential for robust field firmware updates without service interruption. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU - reduces integrity check latency in communication stacks and flash data verification. |
| Quadrature Position/Revolution Counter (QPRC) | Dedicated 16-bit position + 16-bit revolution counters with configurable AIN/BIN/ZIN edge detection - eliminates software overhead in motor encoder position tracking. |
| Motor-control timer blocks | Integrated dead-time insertion, DTIF emergency stop interrupt, and A/D activation compare - enables safe, synchronized PWM generation for BLDC/PMSM drives. |
| SWJ-DP debug interface | Single-wire JTAG debug port compliant with Arm CoreSight - provides non-intrusive real-time debugging and trace capability without requiring full JTAG pin count. |
Applications
| Industrial Motor Control | Smart Home HMI |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and pump drivers using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM waveform generation with dead-time control, and encoder position capture via QPRC. Use Value: Deterministic 40 MHz Cortex-M3 timing ensures sub-µs PWM update consistency; dual-bank Flash permits in-field firmware patching without halting motor operation. | Use Scenario: Touch-enabled appliance control panel with display, button inputs, and IR/CEC remote responsiveness. IC Role / Device Role / Timing Role: Central HMI controller managing capacitive touch scan, LCD refresh, UART-based display driver comms, and HDMI-CEC command parsing. Use Value: Integrated 24-channel ADC supports multi-point touch sensing; dual HDMI-CEC channels enable simultaneous TV and audio system control without external bridge ICs. |
| Energy Metering Gateway | Factory Automation Sensor Node |
Use Scenario: Sub-metering gateway aggregating current/voltage/energy data from multiple CT sensors and communicating via RS-485 or Wi-Fi module. IC Role / Device Role / Timing Role: Analog acquisition hub with 2× 12-bit ADCs, UART/CSIO for Modbus RTU, and RTC for timestamped logging. Use Value: 2.0 µs ADC conversion enables >500 kSPS aggregate sampling; 64 KB SRAM buffers extended waveform capture before transmission. | Use Scenario: DIN-rail mounted I/O module monitoring machine vibration, temperature, and status signals in PLC-controlled production lines. IC Role / Device Role / Timing Role: Edge intelligence node performing local threshold detection, event-triggered UART reporting, and watchdog-monitored sleep/wake cycles. Use Value: Six low-power modes (including Deep Standby RTC with RAM retention) extend operational life on backup coin cell; 5 V-tolerant GPIO simplifies direct connection to 24 V industrial sensors. |
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 |
|---|---|---|---|
| STM32F103VCT6 | 72 MHz Cortex-M3, 256 KB Flash, 48 KB SRAM, no dual-bank Flash or QPRC | Lacks integrated quadrature encoder counter and seamless firmware update capability | Select when higher CPU speed is prioritized over motor-specific peripherals and field-upgrade resilience. |
| RA4M1 (R7FA4M1AB3CFM) | 48 MHz Cortex-M4F, 256 KB Flash, 32 KB SRAM, no hardware CRC accelerator or HDMI-CEC | Includes FPU but omits CEC/remote control blocks and dual-bank Flash architecture | Prefer for floating-point math-intensive tasks where consumer electronics control is not required. |
Compared with STM32F103VCT6 and RA4M1, the CY9AF156MBBGL-GE1 uniquely combines dual-bank Flash for fail-safe OTA updates, dedicated QPRC for encoder position tracking, and dual HDMI-CEC channels - making it optimal for cost-sensitive industrial motor controllers and smart home hubs requiring both real-time control and consumer protocol compliance.
Availability
CY9AF156MBBGL-GE1 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI, energy metering gateways, and factory automation sensor nodes requiring stable component supply across long-lifecycle deployments.
Supply support for CY9AF156MBBGL-GE1 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 MCUs, and security solutions.
The CY9AF156MBBGL-GE1 belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power embedded control applications in industrial automation, motor drives, and consumer electronics with integrated protocol support.
FAQ
What is the maximum operating frequency and supported voltage range for CY9AF156MBBGL-GE1?
The CY9AF156MBBGL-GE1 operates at up to 40 MHz and supports a supply voltage range of 1.65 V to 3.6 V. This wide VCC range allows direct compatibility with common Li-ion battery voltages and standard 3.3 V logic rails without external regulators. The core clock is derived from the Main PLL locked to an external 4–48 MHz crystal or oscillator.
Does CY9AF156MBBGL-GE1 support in-application programming (IAP) with dual-bank Flash?
Yes. Its dual-bank Flash architecture (496 KB upper + 16 KB lower) enables true in-application programming: code can execute from one bank while the other is erased or rewritten. This allows safe over-the-air firmware updates without halting real-time control functions - critical for industrial equipment requiring zero-downtime maintenance.
How many 5 V-tolerant I/O pins does CY9AF156MBBGL-GE1 have, and which packages support them?
The CY9AF156MBBGL-GE1 provides up to 103 high-speed general-purpose I/O pins with 5 V tolerance in the LQM120 (120-pin LQFP) package. Pin-level 5 V tolerance is confirmed in the "List of Pin Function and I/O Circuit Type" section of datasheet 002-05646 Rev. *F, eliminating need for external level shifters when interfacing with legacy 5 V peripherals.
Is hardware debug support limited to SWD or does it include full JTAG capability?
The CY9AF156MBBGL-GE1 supports Serial Wire JTAG Debug Port (SWJ-DP), which provides both SWD and JTAG access through shared pins. However, only SWJ-DP is implemented - full 5-pin JTAG is not available. This configuration delivers full debug visibility (breakpoints, register access, memory inspection) with minimal pin count, aligning with space-constrained PCB layouts.
CY9AF156MBBGL-GE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 96-LFBGA
- Series:
- FM3 MB9A150RB
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 40MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 66
- Program Memory Size:
- 544KB (544K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 17x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF156MBBGL-GE1 FAQ
1.How can I place an order for CY9AF156MBBGL-GE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF156MBBGL-GE1 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 CY9AF156MBBGL-GE1 reliable?
The price and inventory of CY9AF156MBBGL-GE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF156MBBGL-GE1 is usually 5 days.
3.What payment methods are accepted for CY9AF156MBBGL-GE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF156MBBGL-GE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF156MBBGL-GE1?
CY9AF156MBBGL-GE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF156MBBGL-GE1 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 CY9AF156MBBGL-GE1?
For technical support, including CY9AF156MBBGL-GE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF156MBBGL-GE1 requirements.
6.How does Aetrix verify that CY9AF156MBBGL-GE1 is sourced from the original manufacturer or authorized distributors?
All CY9AF156MBBGL-GE1 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 CY9AF156MBBGL-GE1 meets industry standards.
7.What is the process for return or replacement of CY9AF156MBBGL-GE1?
All CY9AF156MBBGL-GE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF156MBBGL-GE1, 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 CY9AF156MBBGL-GE1 part is unused and in its original packaging.
Return procedure for CY9AF156MBBGL-GE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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