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Infineon Technologies CY9AF342NBBGL-GK9E1
- Part No.:
- CY9AF342NBBGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
CY9AF342NBBGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 96FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,565
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Product details
Overview
CY9AF342NBBGL-GK9E1 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), USB 2.0 Full-Speed device/host interface, and 24-channel 12-bit ADC operating in 2.0 μs conversion time. It targets embedded motor control and industrial HMI applications requiring low-power operation down to Deep Standby RTC mode and real-time peripheral coordination.
For engineers reviewing the CY9AF342NBBGL-GK9E1 datasheet, CY9AF342NBBGL-GK9E1 pinout, CY9AF342NBBGL-GK9E1 application, or CY9AF342NBBGL-GK9E1 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, USB host/device dual-role capability, hardware flow control on UART ch.4, HDMI-CEC/remote receiver support, and 83 GPIOs with port relocation in 100-pin LQFP package.
Technical Context
This MCU implements an ARM Cortex-M3 r2p1 core running at up to 40 MHz with integrated NVIC (48 peripheral interrupts, 16 priority levels), SysTick timer, and dual-bus SRAM architecture separating instruction/data (SRAM0) from system peripherals (SRAM1). Its clock system includes five sources: main oscillator (4–48 MHz), sub-clock (32.768 kHz), two built-in CR oscillators (4 MHz / 100 kHz), and Main PLL.
The peripheral set is optimized for real-time embedded control: 8-channel DMA with burst/block/demand transfer modes; 8-channel Base Timer supporting PWM, PPG, reload, and PWC modes; dual watchdog (hardware + software); CRC16/32 accelerator; and six low-power modes including Deep Standby RTC with RAM retention option. USB PHY and PLL are fully integrated for self-contained Full-Speed operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time task scheduling with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - supports concurrent execute-from-Flash and background erase/write for OTA updates. |
| SRAM | 32 KB total: 16 KB SRAM0 (I/D bus), 16 KB SRAM1 (system bus) - isolates CPU instruction fetch from peripheral DMA traffic. |
| ADC | 24-channel 12-bit SAR, 2.0 μs conversion @ 2.7–3.6 V - meets <5 μs sampling requirement for 100 kHz motor current sensing loops. |
| USB Interface | Full-Speed device/host with built-in PLL and 6 endpoints (EP0–EP5), EP1 buffer = 256 B - enables HID-class device enumeration and host-side mass storage control without external PHY. |
| Low-Power Modes | Six modes including Deep Standby RTC with optional RAM retention - achieves sub-1 μA RTC-keeping current for battery-backed industrial timers. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - provides 83 GPIOs with 5V-tolerant capability on selected pins per pin description table. |
Pinout & Package
Package: 100-pin LQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin count and I/O allocation confirmed per CY9A340NB Series datasheet Rev. *D, pages 9–15 (Pin Assignment and Pin Function tables).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pairs per power domain; decoupling required per datasheet layout guidelines to maintain 1.65–3.6 V stability under 40 MHz operation. |
| XTAL/EXTAL | Main clock input/output | Drives 4–48 MHz crystal; connects to internal oscillator circuit - critical for USB PLL lock and timing-critical peripherals. |
| OSC32IN/OSC32OUT | Sub-clock input/output | Connects 32.768 kHz crystal for RTC and Watch Counter - enables calendar timekeeping and wake-up from Stop/Deep Standby modes. |
| USB_DP/USB_DM | USB differential data pair | Integrated full-speed transceiver pins - require 27 Ω series resistors and 1.5 kΩ pull-up on DP for device mode detection. |
| P00–P97 | General-purpose I/O ports | 83 configurable pins with port relocate function; some support 5V tolerance - allows flexible PCB routing and peripheral remapping without hardware change. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables simultaneous code execution from one bank while erasing/writing the other - eliminates application interruption during firmware updates. |
| Hardware UART flow control (ch.4) | Automatic CTS/RTS handshake on dedicated channel - prevents buffer overflow in high-throughput serial communication with modems or sensors. |
| HDMI-CEC + remote receiver (2 ch.) | Integrated protocol engine with automatic ACK, arbitration loss detection, and 4-byte repeat-code buffer - reduces MCU firmware overhead for AV control systems. |
| Real-time clock with leap-year support | Full BCD calendar (Year/Month/Day/Hour/Minute/Second/Weekday) with interrupt on any field - eliminates external RTC IC in smart appliance timers. |
| CRC16/32 accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 calculation from CPU - cuts integrity check latency by >90% for CAN/UART packet validation or Flash sector verification. |
Applications
| Industrial Motor Control | Smart Home HMI Panel |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithm, managing 24-channel ADC sampling, generating synchronized 16-bit PWM outputs, and handling CAN/UART comms. Use Value: Dual-bank Flash enables field-upgradable motor profiles; 2.0 μs ADC ensures accurate phase current capture at 20 kHz switching frequency. | Use Scenario: Touch-enabled wall-mounted display with IR remote and HDMI-CEC control of connected AV devices. IC Role / Device Role / Timing Role: Application processor managing GUI rendering, capacitive touch scan, USB HID interface, and HDMI-CEC command parsing. Use Value: Integrated HDMI-CEC transmitter/receiver eliminates external protocol IC; 83 GPIOs support direct touch matrix scanning and LED backlight PWM. |
| Energy Metering Gateway | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: DIN-rail mounted gateway aggregating pulse inputs, RS-485 Modbus, and wireless uplink via USB-connected cellular module. IC Role / Device Role / Timing Role: Data concentrator coordinating multi-protocol communication, timestamping events with RTC, and validating payloads via hardware CRC. Use Value: USB host mode powers and communicates with LTE modem; dual watchdogs ensure fail-safe recovery during network disconnection events. | Use Scenario: Modular digital I/O expansion unit with isolated inputs/outputs, local logic execution, and EtherCAT slave interface. IC Role / Device Role / Timing Role: Peripheral coordinator managing 16-bit parallel I/O, base timer-based pulse train generation, and DMA-driven EtherCAT mailbox transfers. Use Value: 8-channel DMA with burst mode sustains 100 Mbps EtherCAT cycle times; port relocation simplifies PCB layout across multiple I/O variants. |
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, no USB host, no HDMI-CEC, 16-channel 12-bit ADC (1 μs) | Lacks USB host and HDMI-CEC; stronger analog performance but no remote control stack offload | Select when USB device-only and higher ADC speed are sufficient; avoid if HDMI-CEC or host-mode USB required. |
| RP2040 | Dual-core ARM Cortex-M0+, 2 MB Flash, USB 1.1 device/host, no RTC, no hardware flow control, no HDMI-CEC | No RTC/calendar, no hardware UART flow control, no CEC - requires firmware emulation of timing-critical protocols | Select for cost-sensitive consumer IoT where dual-core simplicity outweighs industrial timing precision and protocol acceleration. |
Compared with STM32F103VCT6 and RP2040, CY9AF342NBBGL-GK9E1 uniquely integrates USB host/device, HDMI-CEC, hardware UART flow control, and dual-bank Flash - making it optimal for industrial HMI and AV control systems requiring zero-latency protocol handling and field-upgradable firmware without external components.
Availability
CY9AF342NBBGL-GK9E1 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI panels, energy metering gateways, and PLC I/O modules requiring stable component supply and long-term lifecycle support.
Supply support for CY9AF342NBBGL-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 German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial control solutions, with global R&D and manufacturing infrastructure.
CY9AF342NBBGL-GK9E1 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers designed specifically for cost-sensitive, low-power embedded controllers in industrial automation, building control, and consumer electronics with integrated protocol acceleration.
FAQ
What power supply voltage range does CY9AF342NBBGL-GK9E1 support?
The device operates from 1.65 V to 3.6 V on VCC. When USB functionality is enabled, VCC must be maintained between 3.0 V and 3.6 V to meet USB electrical compliance requirements per the datasheet's recommended operating conditions section. This dual-voltage constraint ensures reliable USB transceiver operation while retaining flexibility for low-voltage sensor interfaces elsewhere in the system.
Does CY9AF342NBBGL-GK9E1 support debug interfaces beyond SWJ-DP?
No - only Serial Wire JTAG Debug Port (SWJ-DP) is supported; Embedded Trace Macrocell (ETM) is not implemented in this variant per datasheet Rev. *D page 5 footnote. Debugging is limited to breakpoints, watchpoints, and register/memory access via SWD or JTAG; real-time trace streaming is unavailable, requiring alternative profiling methods such as ITM stimulus port or GPIO toggling for timing analysis.
Can the 32 KB on-chip SRAM be used as a unified memory space?
No - SRAM is physically partitioned: SRAM0 (16 KB) connects exclusively to the Cortex-M3 I-code and D-code buses for instruction fetch and data access, while SRAM1 (16 KB) connects only to the system bus for peripheral DMA and non-critical data storage. Code cannot execute from SRAM1, and DMA transfers cannot target SRAM0 - this separation enforces deterministic bus arbitration and avoids CPU/DMA contention.
Is hardware flow control available on all UART channels?
No - hardware flow control (CTS/RTS) is implemented only on UART channel 4, as explicitly stated in the datasheet's UART section and confirmed in the peripheral feature summary. Channels 0–3 and 5–7 support software handshaking only. This limitation is fixed in silicon and cannot be enabled via configuration registers or port relocation.
CY9AF342NBBGL-GK9E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 112-LFBGA
- Series:
- FM3 MB9A340NB
- 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, UART/USART, USB
- Peripherals:
- DMA, 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:
CY9AF342NBBGL-GK9E1 FAQ
1.How can I place an order for CY9AF342NBBGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF342NBBGL-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 CY9AF342NBBGL-GK9E1 reliable?
The price and inventory of CY9AF342NBBGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF342NBBGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AF342NBBGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF342NBBGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF342NBBGL-GK9E1?
CY9AF342NBBGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF342NBBGL-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 CY9AF342NBBGL-GK9E1?
For technical support, including CY9AF342NBBGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF342NBBGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AF342NBBGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AF342NBBGL-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 CY9AF342NBBGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AF342NBBGL-GK9E1?
All CY9AF342NBBGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF342NBBGL-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 CY9AF342NBBGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AF342NBBGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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