Infineon Technologies CY9AF142NBBGL-GE1
- Part No.:
- CY9AF142NBBGL-GE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
CY9AF142NBBGL-GE1.pdf
- Description:
- IC MCU 32BIT 160KB FLSH 112PFBGA
- Quantity:
- Payment:

- Shipping:

Inventory:2,039
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Product details
Overview
CY9AF142NBBGL-GE1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB on-chip SRAM (16 KB SRAM0 + 16 KB SRAM1), and operation up to 40 MHz. It integrates UART/CSIO/I²C interfaces, 24-channel 12-bit ADC (2.0 μs conversion), 8-channel DMA, RTC, HDMI-CEC, and six low-power modes - deployed in industrial motor control and smart sensor nodes requiring deterministic real-time response.
For engineers reviewing the CY9AF142NBBGL-GE1 datasheet, CY9AF142NBBGL-GE1 pinout, CY9AF142NBBGL-GE1 application, or CY9AF142NBBGL-GE1 equivalent, key selection criteria include dual-bank Flash execution capability, 5 V-tolerant I/O support on selected pins, hardware flow control on UART ch.4, external bus interface exclusion, and SWJ-DP debug compatibility without ETM.
Technical Context
This MCU implements the 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 instruction fetch and data access.
The peripheral set includes eight base timers (configurable as PWM/PPG/reload/PWC), dual watchdogs (hardware clocked by 100 kHz CR oscillator, active in Sleep/Timer/RTC modes), and CRC accelerator supporting CCITT CRC16 and IEEE-802.3 CRC32 for data integrity validation in communication stacks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic interrupt latency & RTOS compatibility |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - supports background erase/write during code execution |
| SRAM | 32 KB total (16 KB SRAM0 on I/D bus + 16 KB SRAM1 on system bus) - enables parallel instruction/data access |
| ADC | 24-channel 12-bit SAR, 2.0 μs conversion @ 2.7–3.6 V - suitable for fast analog sensing in motor current feedback |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention option - extends battery life in always-on sensor endpoints |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) only - no ETM trace support, sufficient for firmware validation and breakpoint debugging |
| Supply Voltage | 1.65 V to 3.6 V - compatible with single-cell Li-ion and 3.3 V industrial rails |
Pinout & Package
CY9AF142NBBGL-GE1 uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully defined in Cypress document 002-05637 Rev. *D, pages 9–15.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated pairs per power domain; decoupling required per datasheet layout guidelines |
| XTAL / EXTAL | Main clock oscillator input/output | Supports 4–48 MHz crystal; enables precise timing for UART baud generation and PWM |
| OSC32K / OSC32KIN | Sub-clock oscillator input/output | Drives RTC and Watch Counter at 32.768 kHz; critical for calendar timekeeping in Deep Standby |
| P00–P07, P10–P17, etc. | Multi-function GPIO | Up to 83 pins configurable as GPIO with pull-up control, direct level read, and port relocate function |
| TXD4 / RXD4 | UART channel 4 I/O | Hardware flow control (CTS/RTS) supported - enables robust serial communication with modems or sensors |
| AD00–AD23 | Analog input channels | 24 dedicated ADC inputs; some share with GPIO; require external filtering per AC specs |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash architecture | Enables Over-The-Air (OTA) firmware update without halting application execution |
| 5 V-tolerant GPIO | Allows direct interfacing with legacy 5 V logic or sensors without level shifters |
| HDMI-CEC transceiver | Integrates full CEC protocol stack (header auto-gen, ACK reply, arbitration loss detection) for AV control systems |
| CRC accelerator (CRC16/CRC32) | Offloads integrity checking from CPU - reduces firmware overhead in bootloader and communication layers |
| Two independent watchdogs | Hardware watchdog (CR-clocked) remains active in all sleep modes except Deep Standby Stop - ensures fail-safe recovery |
Applications
| Industrial Motor Control | Smart HVAC Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor control with current sensing and commutation timing. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, ADC sampling of phase currents, PWM generation with dead-time insertion. Use Value: 40 MHz Cortex-M3 + 2.0 μs ADC + 8 base timers enable sub-μs timing resolution for precise torque control. | Use Scenario: Battery-powered temperature/humidity/CO₂ monitoring node with wireless uplink. IC Role / Device Role / Timing Role: Sensor data acquisition, RTC-based wake scheduling, low-power UART transmission to gateway. Use Value: Deep Standby RTC mode draws <1.5 μA while retaining RAM and RTC - extends 2-AA battery life to >5 years. |
| Home Audio Remote System | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: HDMI-CEC enabled audio receiver with IR remote learning and system-wide power sync. IC Role / Device Role / Timing Role: CEC protocol handling, IR signal decoding, GPIO-based relay control for power sequencing. Use Value: Integrated HDMI-CEC transmitter/receiver eliminates external transceiver IC and reduces BOM count by one component. | Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs. IC Role / Device Role / Timing Role: Fieldbus interface management (UART/CSIO), discrete I/O scanning, watchdog supervision of field logic. Use Value: 8-channel DMA + 24-channel ADC + external bus interface (not supported on this variant) - but GPIO count and interrupt flexibility suit compact I/O consolidation. |
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 |
|---|---|---|---|
| CY9AF142MBBGL-GE1 | Same die, 100-pin LQFP, but with Embedded Trace Macrocell (ETM) enabled - adds instruction trace capability | Required where real-time instruction-level tracing is needed for complex firmware optimization or certification | Select when trace visibility outweighs cost premium and power budget allows ETM activity |
| STM32F103VCT6 | ARM Cortex-M3 @ 72 MHz, 256 KB Flash, 48 KB SRAM, no HDMI-CEC, no dual-bank Flash, different peripheral mix | Preferred for higher-performance general-purpose control where CEC and background Flash updates are not required | Choose for broader ecosystem support and higher clock speed, accepting trade-offs in integrated CEC and Flash update safety |
Compared with CY9AF142NBBGL-GE1, the MB variant adds ETM trace at identical pinout and power profile, while STM32F103VCT6 trades integrated CEC and dual-bank Flash for higher CPU speed and larger SRAM - making it better suited for non-CEC applications needing raw throughput over protocol integration.
Availability
CY9AF142NBBGL-GE1 is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC sensor nodes, home audio remote systems, and PLC I/O modules requiring stable component supply across multi-year production cycles.
Supply support for CY9AF142NBBGL-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 German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial control solutions, with global R&D and manufacturing infrastructure.
CY9AF142NBBGL-GE1 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded controllers in industrial automation and consumer electronics with integrated protocol accelerators.
FAQ
Does CY9AF142NBBGL-GE1 support external memory expansion via its External Bus Interface?
No. According to the official datasheet (002-05637 Rev. *D, page 2), CY9AF142NBBGL-GE1 - along with CY9AF141LB and CY9AF144LB - does not implement the External Bus Interface. This omission reduces pin count and simplifies PCB layout for applications relying solely on on-chip memory and serial peripherals.
What debug capabilities does CY9AF142NBBGL-GE1 provide?
CY9AF142NBBGL-GE1 supports Serial Wire JTAG Debug Port (SWJ-DP) for full firmware download, breakpoint setting, register inspection, and memory access. It does not include Embedded Trace Macrocell (ETM), unlike the MB variant - limiting real-time instruction trace but retaining full functional debug capability for most development tasks.
Is hardware flow control available on all UART channels?
Hardware flow control (CTS/RTS) is supported exclusively on UART channel 4 (TXD4/RXD4). Channels 0–3 lack RTS/CTS signals per the pin function table (datasheet p.16). This design targets primary host communication on ch.4 while reserving other UARTs for simpler peripheral links like sensors or displays.
How does the dual-bank Flash architecture improve firmware reliability?
Dual-bank Flash allows simultaneous read from one bank while erasing or programming the other - enabling safe Over-The-Air (OTA) updates. If power fails mid-update, the previous firmware remains intact in the unmodified bank, ensuring guaranteed bootability and eliminating risk of bricking the device during field upgrades.
CY9AF142NBBGL-GE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 112-LFBGA
- Series:
- FM3 MB9A140NB
- 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:
- LVD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 160KB (160K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF142NBBGL-GE1 FAQ
1.How can I place an order for CY9AF142NBBGL-GE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF142NBBGL-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 CY9AF142NBBGL-GE1 reliable?
The price and inventory of CY9AF142NBBGL-GE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF142NBBGL-GE1 is usually 5 days.
3.What payment methods are accepted for CY9AF142NBBGL-GE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF142NBBGL-GE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF142NBBGL-GE1?
CY9AF142NBBGL-GE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF142NBBGL-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 CY9AF142NBBGL-GE1?
For technical support, including CY9AF142NBBGL-GE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF142NBBGL-GE1 requirements.
6.How does Aetrix verify that CY9AF142NBBGL-GE1 is sourced from the original manufacturer or authorized distributors?
All CY9AF142NBBGL-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 CY9AF142NBBGL-GE1 meets industry standards.
7.What is the process for return or replacement of CY9AF142NBBGL-GE1?
All CY9AF142NBBGL-GE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF142NBBGL-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 CY9AF142NBBGL-GE1 part is unused and in its original packaging.
Return procedure for CY9AF142NBBGL-GE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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