Infineon Technologies CY9BF318SPMC-GK7CGE1
- Part No.:
- CY9BF318SPMC-GK7CGE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY9BF318SPMC-GK7CGE1.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:600
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Product details
Overview
CY9BF318SPMC-GK7CGE1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 1 MB Flash, 128 KB SRAM, USB 2.0 Full-Speed device/host interface, 32-channel 12-bit ADC (1.0 μs conversion), and motor control peripherals including QPRC, multi-function timers, and PWM. It operates at up to 144 MHz and supports 2.7–5.5 V supply for industrial motor drives and embedded controllers.
For engineers reviewing the CY9BF318SPMC-GK7CGE1 datasheet, CY9BF318SPMC-GK7CGE1 pinout, CY9BF318SPMC-GK7CGE1 application, or CY9BF318SPMC-GK7CGE1 equivalent, key selection criteria include Flash/SRAM size, USB dual-role capability, real-time motor timing features (QPRC, DTIF, dead time), and 5 V-tolerant GPIO allocation in the 176-pin LQFP package.
Technical Context
This MCU implements the ARM Cortex-M3 r2p1 core with Memory Protection Unit (MPU) and NVIC supporting 48 peripheral interrupts across 16 priority levels. Its clock system integrates five sources - main oscillator (4–48 MHz), sub-clock (32.768 kHz), high/low-speed CR oscillators, and Main PLL - with Clock Supervisor (CSV) for external clock failure detection.
The peripheral set targets real-time motion control: three QPRC units for encoder position tracking, three multi-function timers with A/D activation compare and waveform generation, and dual USB channels (one device-only, one host/device) with 256-byte packet support and automatic connect/disconnect detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 r2p1, up to 144 MHz - enables deterministic real-time execution for motor control loops. |
| Flash Memory | 1 MB with Flash Accelerator - zero-wait-state access ≤72 MHz; sustained performance >72 MHz via trace buffer. |
| SRAM | 128 KB split into SRAM0 (64 KB, I/D bus) and SRAM1 (64 KB, system bus) - enables concurrent CPU/DMA access without contention. |
| ADC | 32-channel 12-bit SAR, 1.0 μs conversion @5 V - supports fast current/voltage sampling in servo drive feedback paths. |
| USB Interface | Dual-channel: ch.0 (device only, FS), ch.1 (host/device, FS/LS) - enables firmware updates via USB device mode and peripheral attachment via host mode. |
| Power Supply | VCC: 2.7–5.5 V; USBVCC0/1: 3.0–3.6 V when used for USB I/O - supports mixed-voltage board design with isolated USB power domains. |
| Package | 176-pin LQFP (24 × 24 mm, 0.5 mm pitch) - provides 154 fast I/O pins with port relocation and select 5 V-tolerant inputs. |
Pinout & Package
Package: 176-pin LQFP (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin count and I/O allocation confirmed per CY9B310T Series datasheet Rev. *D, pages 9–11 (Pin Assignment) and 12–50 (List of Pin Functions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power / Ground | Dedicated power/ground pairs per section - ensures stable core, analog, and USB domain operation with low noise coupling. |
| XTAL / EXTAL | Main Oscillator Input/Output | 4–48 MHz crystal interface - feeds Main PLL for high-frequency system clock generation with CSV supervision. |
| OSC32K / OSC32KOUT | Sub-Clock Crystal Interface | 32.768 kHz crystal connection - enables RTC, watchdog wake-up, and low-power timer functions in SLEEP/STOP modes. |
| USB_DP0 / USB_DM0 | USB Channel 0 Differential Pair | Full-Speed device-only interface - requires external 1.5 kΩ pull-up on DP0 for enumeration; no host capability. |
| USB_DP1 / USB_DM1 | USB Channel 1 Differential Pair | Full/Low-Speed host/device interface - supports automatic device detection and IN/OUT token handshake without software polling. |
| AIN0–AIN2 / BIN0–BIN2 / ZIN0–ZIN2 | QPRC Encoder Inputs | Three independent quadrature encoder interfaces - each supports configurable edge detection and 16-bit position/revolution counters for PMSM/BLDC rotor tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Motor Control Timers | 16-channel base timers + 3-unit multi-function timers with dead time insertion (DTIF), PWM, and A/D activation - enables precise gate drive timing and current-sensing synchronization. |
| Quadrature Position Counter | 3 independent QPRC units with 16-bit position/revolution counters and dual compare registers - supports closed-loop position control for stepper and servo motors. |
| CRC Accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 - offloads integrity checking from CPU during firmware OTA updates or sensor data logging. |
| Low-Power Modes | SLEEP, TIMER, STOP with wake-up from QPRC, USB, or watchdog - extends battery life in portable motorized tools and IoT edge nodes. |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) with ETM trace - enables real-time instruction tracing and non-intrusive breakpoint debugging in live motor control applications. |
Applications
| Industrial Motor Drives | Automated Test Equipment |
|---|---|
Use Scenario: Closed-loop control of PMSM/BLDC motors in HVAC blowers and pump inverters. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using QPRC for rotor position, ADC for phase current sampling, and PWM timers for gate driver modulation. Use Value: 1.0 μs ADC conversion and DTIF interrupt ensure <5 μs current loop latency; 1 MB Flash accommodates safety-certified motor control stacks. | Use Scenario: Automated calibration and signal generation in benchtop power analyzers. IC Role / Device Role / Timing Role: USB host mode controls external DMMs/sensors; multi-function serial interfaces (CSIO/I²C/UART) communicate with calibration DACs and relays. Use Value: Dual USB channels allow simultaneous firmware update (device mode) and instrument control (host mode); 128 KB SRAM buffers multi-channel measurement data. |
| Smart Building Controllers | Medical Infusion Pumps |
Use Scenario: Centralized HVAC zone controllers managing damper actuators and temperature sensors. IC Role / Device Role / Timing Role: LIN bus master communicates with remote thermostats; ADC monitors ambient/duct temperatures; watchdog ensures fail-safe shutdown. Use Value: LIN 2.1 compliance with programmable break field (13–16 bit) enables interoperability with legacy building systems; LVD2 auto-reset prevents brownout-induced erratic actuator movement. | Use Scenario: Precision fluid delivery control with pressure sensing and stepper motor actuation. IC Role / Device Role / Timing Role: QPRC tracks stepper position; ADC reads pressure transducer output; CRC accelerator validates infusion parameter EEPROM writes. Use Value: 16-bit QPRC resolution supports sub-microliter dosing accuracy; hardware CRC32 ensures data integrity per IEC 62304 Class C requirements. |
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 |
|---|---|---|---|
| STM32F303RET6 | ARM Cortex-M4F core, 512 KB Flash, 80 MHz max, no USB host, integrated op-amps/comparators | Better analog signal conditioning; lacks USB host and QPRC - limited to single-axis motor control | Select when analog front-end integration outweighs USB host and encoder counter requirements. |
| RA6M3GFP | ARM Cortex-M4, 1 MB Flash, 200 MHz, USB host/device, no QPRC, 24-channel 12-bit ADC (0.9 μs) | Higher CPU performance and faster ADC; replaces QPRC with general-purpose timers + GPIO-based quadrature decoding | Select when application uses software-based position tracking or requires higher throughput for communication-intensive tasks. |
Compared with STM32F303RET6 and RA6M3GFP, CY9BF318SPMC-GK7CGE1 uniquely combines USB host/device dual-role, dedicated QPRC hardware, and 144 MHz Cortex-M3 operation - making it optimal for cost-sensitive, encoder-driven motor systems requiring field-upgradable firmware and plug-and-play peripheral attachment.
Availability
CY9BF318SPMC-GK7CGE1 is available at Aetrix Electronics and suitable for industrial motor drives, automated test equipment, smart building controllers, and medical infusion pumps requiring stable component supply and long-term lifecycle support.
Supply support for CY9BF318SPMC-GK7CGE1 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 industrial control solutions.
CY9BF318SPMC-GK7CGE1 belongs to the FM3 family of high-performance, cost-optimized 32-bit microcontrollers designed specifically for real-time motor control, industrial automation, and embedded systems requiring USB connectivity and robust analog peripherals.
FAQ
What is the maximum operating frequency and supported voltage range for CY9BF318SPMC-GK7CGE1?
The CY9BF318SPMC-GK7CGE1 operates at up to 144 MHz using its Main PLL clock source. Its core supply (VCC) supports 2.7 V to 5.5 V, while USB I/O domains (USBVCC0/1) require 3.0–3.6 V when active. The wide VCC range allows direct interfacing with 3.3 V and 5 V logic systems without level shifters.
Does this MCU support USB host functionality, and which channel provides it?
Yes, CY9BF318SPMC-GK7CGE1 supports USB host functionality exclusively on Channel 1 (USB_DP1/USB_DM1). This channel operates at Full-Speed (12 Mbps) or Low-Speed (1.5 Mbps), includes automatic device detection, IN/OUT token handling, and supports up to 256-byte packets - enabling direct connection to USB HID devices or storage peripherals.
How many quadrature encoder interfaces does CY9BF318SPMC-GK7CGE1 provide, and what are their capabilities?
The MCU provides three independent Quadrature Position/Revolution Counters (QPRC). Each supports configurable edge detection on AIN/BIN/ZIN pins, 16-bit position and revolution counters, and two 16-bit compare registers. These are hardware-accelerated units - not implemented in software - ensuring jitter-free, cycle-accurate position tracking for PMSM and BLDC motor commutation.
Is the CY9BF318SPMC-GK7CGE1 pin-compatible with other FM3 series MCUs?
No, CY9BF318SPMC-GK7CGE1 is not universally pin-compatible across the FM3 family. While it shares the 176-pin LQFP footprint with some CY9B310T-series variants, pin functions (especially USB, QPRC, and peripheral multiplexing) differ between sub-families. Pin mapping must be verified against the specific device's "Pin Assignment" table in the datasheet Rev. *D, page 9.
CY9BF318SPMC-GK7CGE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-LQFP
- Series:
- FM3 MB9B310T
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit
- Speed:
- 144MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 122
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF318SPMC-GK7CGE1 FAQ
1.How can I place an order for CY9BF318SPMC-GK7CGE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF318SPMC-GK7CGE1 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 CY9BF318SPMC-GK7CGE1 reliable?
The price and inventory of CY9BF318SPMC-GK7CGE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF318SPMC-GK7CGE1 is usually 5 days.
3.What payment methods are accepted for CY9BF318SPMC-GK7CGE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF318SPMC-GK7CGE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF318SPMC-GK7CGE1?
CY9BF318SPMC-GK7CGE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF318SPMC-GK7CGE1 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 CY9BF318SPMC-GK7CGE1?
For technical support, including CY9BF318SPMC-GK7CGE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF318SPMC-GK7CGE1 requirements.
6.How does Aetrix verify that CY9BF318SPMC-GK7CGE1 is sourced from the original manufacturer or authorized distributors?
All CY9BF318SPMC-GK7CGE1 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 CY9BF318SPMC-GK7CGE1 meets industry standards.
7.What is the process for return or replacement of CY9BF318SPMC-GK7CGE1?
All CY9BF318SPMC-GK7CGE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF318SPMC-GK7CGE1, 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 CY9BF318SPMC-GK7CGE1 part is unused and in its original packaging.
Return procedure for CY9BF318SPMC-GK7CGE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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