Infineon Technologies CY9AF155MABGL-GE1
- Part No.:
- CY9AF155MABGL-GE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 96-LFBGA
- Datasheet:
-
CY9AF155MABGL-GE1.pdf
- Description:
- IC MCU 32BIT 416KB FLASH 96FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:2,947
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Product details
Overview
CY9AF155MABGL-GE1 from Spansion (now Cypress Semiconductor, part of Infineon) is a 32-bit ARM Cortex-M3 microcontroller with dual-bank flash (496 KB upper + 16 KB lower), 64 KB on-chip SRAM (32 KB SRAM0 + 32 KB SRAM1), and integrated peripherals including 24-channel 12-bit ADC (2.0 µs conversion), 16-channel base timer, and HDMI-CEC/remote control receiver. It operates up to 40 MHz at 1.65–3.6 V and targets low-power embedded motor control and industrial HMI applications.
For engineers reviewing the CY9AF155MABGL-GE1 datasheet, CY9AF155MABGL-GE1 pinout, CY9AF155MABGL-GE1 application, or CY9AF155MABGL-GE1 equivalent, key selection criteria include dual-bank flash execution capability, 5V-tolerant GPIO count (up to 103 pins in 120-pin package), RTC with leap-year support, hardware watchdog clocked by 100 kHz CR oscillator, and SWJ-DP debug interface without ETM.
Technical Context
The CY9AF155MABGL-GE1 implements an ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer. Its memory subsystem features dual-operation flash enabling concurrent read-erase-write across banks and two independent SRAM blocks (SRAM0 on I/D-code bus, SRAM1 on system bus).
Peripheral integration includes a 8-channel DMA controller with 32-bit addressing, multi-function serial interface configurable per channel as UART/CSIO/I²C, QPRC for encoder position sensing, and dual watchdog timers-one hardware-based (100 kHz CR clock) active in all low-power modes except Deep Standby RTC/STOP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 r2p1, 40 MHz max operation - enables deterministic real-time task scheduling with NVIC interrupt latency under 12 cycles. |
| Flash Memory | 512 KB dual-bank (496 KB upper + 16 KB lower), 0-wait-state read - supports background firmware updates without halting execution. |
| SRAM | 64 KB total (32 KB SRAM0 + 32 KB SRAM1), independently bus-connected - allows simultaneous CPU instruction fetch and DMA data transfer without contention. |
| ADC | 24-channel 12-bit SAR, 2.0 µs conversion @ 2.7–3.6 V - meets sub-µs sampling requirements for closed-loop motor current sensing. |
| Low-Power Modes | Six modes including Deep Standby RTC/STOP with RAM retention option - extends battery life in always-on sensor nodes and remote controls. |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) only - provides full halt-mode debugging but excludes trace capability (no ETM). |
| Package | 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch) - supports high I/O density with 103 general-purpose pins, some 5V tolerant. |
Pinout & Package
Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 1.65–3.6 V core I/O supply with dedicated analog and digital ground pins for noise isolation in mixed-signal operation. |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–48 MHz external crystal; enables precise timing for USB, communication interfaces, and real-time control loops. |
| OSC32K / OSC32KOUT | 32.768 kHz sub-clock input/output | Drives RTC and Watch Counter; maintains timekeeping during STOP and Deep Standby modes with ultra-low power consumption. |
| INITX | External reset input | Active-low asynchronous reset pin; used for system-level recovery independent of internal reset sources like LVD or watchdog timeout. |
| PA0–PA31, PB0–PB31, etc. | Multi-function GPIO | Up to 103 pins configurable as general-purpose I/O with per-pin pull-up control, direct level read, and port relocation for flexible PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash Architecture | Enables over-the-air firmware updates by erasing/writing one bank while executing from the other - critical for field-deployed industrial controllers. |
| HDMI-CEC & Remote Control Receiver | Integrated dual-channel CEC transceiver with automatic ACK, arbitration loss detection, and 4-byte IR buffer - eliminates need for external protocol ICs in AV equipment and smart displays. |
| Quadrature Position/Revolution Counter (QPRC) | 16-bit position + 16-bit revolution counters with configurable A/B/Z input edge detection - directly interfaces with incremental encoders in BLDC/PMSM motor drives. |
| Clock Supervision (CSV) | Monitors external clock frequency and stop conditions using internal CR oscillators - triggers reset or interrupt on clock failure, ensuring fail-safe operation in safety-critical systems. |
| CRC Accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 calculation - offloads integrity checking from CPU during firmware update verification and communication frame validation. |
Applications
| Industrial Motor Control | Smart Home Remote Hub |
|---|---|
Use Scenario: Closed-loop control of brushless DC motors in HVAC blowers and factory automation actuators. IC Role / Device Role / Timing Role: MCU host managing PWM generation, current sensing via 24-channel ADC, QPRC-based rotor position feedback, and real-time fault response via DTIF interrupt. Use Value: Integrated motor control functions reduce BOM cost and PCB area versus discrete timer + comparator + ADC solutions; dual-bank flash enables safe field firmware upgrades. | Use Scenario: Central IR/CEC command aggregator for voice-controlled smart home gateways. IC Role / Device Role / Timing Role: Protocol processor handling simultaneous HDMI-CEC transmission/reception and NEC/RC-5 remote code decoding with repeat detection. Use Value: On-chip CEC and IR receivers eliminate external transceivers; RTC with alarm wake-up supports low-power listening mode between commands. |
| Energy Metering HMI | Portable Medical Sensor Node |
Use Scenario: Display and communication module in DIN-rail energy meters with LCD driver and RS-485 interface. IC Role / Device Role / Timing Role: Embedded controller managing SPI-driven segment LCD, UART-to-RS-485 bridge, and secure firmware updates via dual-bank flash. Use Value: 5V-tolerant GPIO simplifies interface to legacy RS-485 transceivers; LVD2 auto-reset prevents corrupted meter readings during brownout events. | Use Scenario: Battery-powered wearable sensor hub collecting ECG, temperature, and motion data. IC Role / Device Role / Timing Role: Ultra-low-power data concentrator using Deep Standby RTC mode with RAM retention, waking periodically to sample ADC and transmit via UART. Use Value: Six low-power modes and 100 kHz hardware watchdog enable >1-year battery life; built-in CRC accelerator ensures reliable BLE packet integrity checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MB9AF156MABGL-GE1 | Same family, 512 KB flash (identical bank split), but adds 16-channel CSIO and enhanced HDMI-CEC FIFO depth. | Better suited for systems requiring higher serial interface concurrency or extended CEC message buffering. | Select when additional CSIO channels or larger CEC receive buffer (8 bytes vs 4) are required for complex AV control stacks. |
| STM32F103VCT6 | ARM Cortex-M3, 256 KB flash, 48 KB SRAM, no dual-bank flash, no HDMI-CEC, different peripheral set (USB, CAN). | Targets cost-sensitive industrial control where USB/CAN connectivity outweighs CEC/remote features. | Choose if USB device interface or CAN bus is mandatory and dual-bank flash is not required for firmware updates. |
Compared with MB9AF156MABGL-GE1, this part offers identical dual-bank flash and QPRC but fewer CSIO channels and smaller CEC buffer; versus STM32F103VCT6, it delivers superior embedded AV protocol support and safer firmware update capability at the expense of USB/CAN.
Availability
CY9AF155MABGL-GE1 is available at Aetrix Electronics and suitable for industrial motor control, smart home remote hubs, energy metering HMIs, and portable medical sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for CY9AF155MABGL-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
Spansion Inc., acquired by Cypress Semiconductor in 2015 and later by Infineon Technologies in 2020, specialized in embedded flash microcontrollers and memory solutions for automotive, industrial, and consumer electronics.
The MB9A150RA series was designed specifically for cost-optimized, low-power embedded controllers in motor drive, human-machine interface, and remote control applications - emphasizing dual-bank flash reliability, integrated protocol engines (CEC/IR), and robust clock supervision.
FAQ
What is the maximum operating frequency and voltage range for CY9AF155MABGL-GE1?
The CY9AF155MABGL-GE1 operates at up to 40 MHz across a supply voltage range of 1.65 V to 3.6 V. Its main clock supports 4–48 MHz external crystals, and internal PLL enables precise frequency synthesis. The wide voltage range accommodates both battery-powered and regulated industrial power supplies without level-shifting circuitry.
Does CY9AF155MABGL-GE1 support true simultaneous read-erase-write operations?
Yes - its dual-bank flash architecture (496 KB upper bank + 16 KB lower bank) allows independent erase, write, and read operations on each bank. This enables background firmware updates: new code can be written to one bank while the system executes from the other, eliminating downtime during field upgrades.
How many 5V-tolerant I/O pins does CY9AF155MABGL-GE1 have, and where are they located?
The CY9AF155MABGL-GE1 provides 5V-tolerant I/O on specific pins documented in the "I/O Circuit Type" section of the datasheet (e.g., certain PAx, PBx, and PCx pins). Exact count and location depend on the 120-pin LQFP package variant; users must consult the pin function table and I/O type mapping to identify compatible pins for interfacing with 5V logic or RS-485 transceivers.
Is SWD debugging supported, and does it include trace capability?
CY9AF155MABGL-GE1 supports Serial Wire Debug (SWD) via the Serial Wire JTAG Debug Port (SWJ-DP), enabling full halt-mode debugging, register inspection, and flash programming. However, it does not include Embedded Trace Macrocell (ETM); trace functionality is omitted in this variant, distinguishing it from higher-tier members of the FM3 family that integrate ETM.
CY9AF155MABGL-GE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 96-LFBGA
- Series:
- FM3 MB9A150RA
- 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:
- 416KB (416K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 48K 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:
CY9AF155MABGL-GE1 FAQ
1.How can I place an order for CY9AF155MABGL-GE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF155MABGL-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 CY9AF155MABGL-GE1 reliable?
The price and inventory of CY9AF155MABGL-GE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF155MABGL-GE1 is usually 5 days.
3.What payment methods are accepted for CY9AF155MABGL-GE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF155MABGL-GE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF155MABGL-GE1?
CY9AF155MABGL-GE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF155MABGL-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 CY9AF155MABGL-GE1?
For technical support, including CY9AF155MABGL-GE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF155MABGL-GE1 requirements.
6.How does Aetrix verify that CY9AF155MABGL-GE1 is sourced from the original manufacturer or authorized distributors?
All CY9AF155MABGL-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 CY9AF155MABGL-GE1 meets industry standards.
7.What is the process for return or replacement of CY9AF155MABGL-GE1?
All CY9AF155MABGL-GE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF155MABGL-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 CY9AF155MABGL-GE1 part is unused and in its original packaging.
Return procedure for CY9AF155MABGL-GE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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