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Infineon Technologies CY9AF312LPMC1-G-MJE1
- Part No.:
- CY9AF312LPMC1-G-MJE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY9AF312LPMC1-G-MJE1.pdf
- Description:
- IC MM MCU 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,600
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Product details
Overview
CY9AF312LPMC1-G-MJE1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 512 KB on-chip Flash, 32 KB SRAM (split into two 16 KB banks), USB 2.0 Full-Speed device/host interface, and integrated motor control peripherals including 8-channel base timers, dual QPRC units, and multi-function timers with dead-time insertion. It operates up to 40 MHz and supports 2.7–5.5 V supply for core logic.
For engineers reviewing the CY9AF312LPMC1-G-MJE1 datasheet, CY9AF312LPMC1-G-MJE1 pinout, CY9AF312LPMC1-G-MJE1 application, or CY9AF312LPMC1-G-MJE1 equivalent, this page delivers verified technical context, package mapping, real-world use cases in motor control and industrial connectivity, and validated alternative parts with documented functional differences.
Technical Context
The CY9AF312LPMC1-G-MJE1 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 includes dual-bus-connected SRAM banks (SRAM0 on I/D-code bus, SRAM1 on system bus) enabling concurrent CPU and DMA access.
Peripherals are architected for deterministic real-time control: USB PHY with built-in PLL supports full-speed device/host operation; dual QPRC units accept A/B/Z encoder inputs with configurable edge detection and 16-bit position/revolution counters; and multi-function timers provide PWM, PPG, input capture, and A/D activation compare with DTIF emergency stop signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 40 MHz max operation - enables deterministic interrupt latency & RTOS compatibility |
| Flash Memory | 512 KB, 0-wait-state read - supports fast code execution without cache penalties |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1) - dual-bus architecture allows simultaneous CPU/DMA access |
| USB Interface | Full-Speed Device/Host with 6 endpoints, built-in PLL - eliminates external clock synthesis for USB timing compliance |
| A/D Converter | 12-bit SAR, 1.0 μs conversion @ 5 V, 16-channel scan mode with FIFO - meets real-time sampling needs in motor current sensing |
| Timers | 8× 16-bit base timers + 2× multi-function timers (6 output compare, 4 input capture per unit) - supports complex waveform generation and encoder feedback synchronization |
| QPRC Units | 2× quadrature position/revolution counters with AIN/BIN/ZIN inputs and 16-bit counters - directly interfaces standard incremental encoders without external logic |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power / ground | Dual-supply domain: VCC = 2.7–5.5 V for logic; separate USBVCC pin required if USB I/O used |
| XTAL / EXTAL | Main clock oscillator inputs | Accepts 4–48 MHz crystal or external clock source for precise timing reference |
| USB_DP / USB_DM | USB differential data pair | Full-Speed USB 2.0 physical layer interface; requires 1.5 kΩ pull-up on DP for device enumeration |
| AIN0–AIN1 / BIN0–BIN1 / ZIN0–ZIN1 | Quadrature encoder inputs | Dedicated pins for two independent QPRC units; support configurable edge detection for A/B/Z signals |
| P00–P07, P10–P17, etc. | General-purpose I/O with port relocation | 83 GPIOs total; peripheral function assignment dynamically configurable via register-based port relocate feature |
Key Features
| Feature | Design Value |
|---|---|
| Dual QPRC with Z-input support | Enables absolute position tracking and homing via index pulse without external counter ICs |
| Motor-control-optimized timers | Integrated dead-time insertion (DTIF), PWM/PPG modes, and A/D trigger outputs reduce firmware overhead in BLDC/PMSM drives |
| USB device/host dual-mode | Single silicon instance supports both host-side peripheral management and device-side firmware updates over USB |
| Port relocation capability | Allows flexible PCB layout by remapping UART, CSIO, or LIN functions to non-default pins without hardware changes |
| CRC accelerator (CRC16/CRC32) | Offloads integrity checking from CPU during firmware OTA updates or fieldbus communication (e.g., LIN frame validation) |
Applications
| Industrial Motor Drive | Automated Test Equipment |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using QPRC for rotor position, ADC-triggered current sampling, and PWM generation with programmable dead time. Use Value: Eliminates need for external encoder interface IC and reduces BOM count by integrating motor control peripherals into single chip. | Use Scenario: Signal acquisition and stimulus generation in benchtop test systems with USB host connectivity. IC Role / Device Role / Timing Role: USB host controller managing multiple DMMs or signal generators; synchronized analog capture via 12-bit ADC with scanning FIFO. Use Value: Enables plug-and-play instrumentation via native USB host stack while maintaining sub-microsecond timing precision for trigger-based sampling. |
| Smart Building Gateway | Factory Automation Node |
Use Scenario: Protocol translation between RS-485 Modbus devices and Ethernet/Wi-Fi networks. IC Role / Device Role / Timing Role: Dual UART/LIN interfaces handle legacy fieldbus communication; USB device mode provides configuration and firmware update channel. Use Value: Reduces integration effort by supporting multiple industrial protocols simultaneously with shared memory and DMA resources. | Use Scenario: Distributed I/O module with encoder feedback, analog sensor inputs, and CAN/LIN bus interfacing. IC Role / Device Role / Timing Role: Central controller aggregating QPRC position data, 16-channel ADC readings, and serial bus traffic with deterministic interrupt response. Use Value: Satisfies hard real-time requirements (<100 µs jitter) for motion coordination across multiple axes without external timing co-processors. |
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 |
|---|---|---|---|
| CY9AF314LPMC1-G-MJE1 | Same FM3 platform, 1 MB Flash, 64 KB SRAM, adds External Bus Interface (EBI) | Required when interfacing external NOR Flash or SRAM for firmware expansion or data logging | Select if EBI functionality is needed; otherwise identical peripheral set and pinout |
| STM32F303RET6 | Arm Cortex-M4F core, 512 KB Flash, 80 KB SRAM, no native USB host, single QEI | Limited to USB device-only and single-axis encoder support; lacks dual QPRC and USB host capability | Choose only if floating-point math or higher SRAM is prioritized over dual encoder handling and USB host features |
Compared with CY9AF312LPMC1-G-MJE1, CY9AF314LPMC1-G-MJE1 extends memory and adds EBI for expandable storage, while STM32F303RET6 trades dual QPRC and USB host for FPU and larger SRAM-making it suitable only where those specific features are non-critical.
Availability
CY9AF312LPMC1-G-MJE1 is available at Aetrix Electronics and suitable for industrial motor drives, automated test equipment, smart building gateways, and factory automation nodes requiring stable component supply, long-term lifecycle support, and qualified automotive-grade reliability.
Supply support for CY9AF312LPMC1-G-MJE1 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 manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
The CY9AF312LPMC1-G-MJE1 belongs to the FM3 family of high-performance 32-bit microcontrollers designed specifically for cost-sensitive, real-time embedded control applications demanding integrated motor control peripherals, USB connectivity, and robust industrial I/O.
FAQ
What is the maximum operating frequency and voltage range for CY9AF312LPMC1-G-MJE1?
The CY9AF312LPMC1-G-MJE1 operates at up to 40 MHz with a core supply voltage (VCC) range of 2.7 V to 5.5 V. USB I/O requires a dedicated USBVCC supply of 3.0–3.6 V when USB functionality is active; otherwise, USBVCC may be tied to VCC within the full 2.7–5.5 V range. These specifications are confirmed in the Rev. *E datasheet Section 12.2.
Does CY9AF312LPMC1-G-MJE1 support USB host mode, and what peripherals can it manage?
Yes, CY9AF312LPMC1-G-MJE1 supports USB 2.0 Full-Speed and Low-Speed host mode with automatic device connect/disconnect detection, IN/OUT token handshake, and up to 256-byte packet length. It can manage up to two downstream devices concurrently, such as USB-to-serial adapters or HID peripherals, as specified in Section 3.3.2 of the datasheet.
How many quadrature encoder interfaces does CY9AF312LPMC1-G-MJE1 provide, and what inputs do they support?
The device integrates two independent Quadrature Position/Revolution Counters (QPRC), each accepting three dedicated inputs: AIN, BIN, and ZIN. Edge detection polarity for all three signals is software-configurable, and each unit provides 16-bit position and revolution counters with dual compare registers, as detailed in Section 3.11 of the datasheet.
Is external memory interface supported on CY9AF312LPMC1-G-MJE1?
No, CY9AF312LPMC1-G-MJE1 does not include an External Bus Interface (EBI). This feature is present only in higher variants like CY9AF314LPMC1-G-MJE1. The CY9AF312LPMC1-G-MJE1 relies solely on its 512 KB on-chip Flash and 32 KB SRAM for program and data storage, as explicitly stated in the "Product Lineup" table (Section 1) and peripheral summary (Page 2).
CY9AF312LPMC1-G-MJE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- FM3 MB9A110
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit
- Speed:
- 40MHz
- Connectivity:
- CSIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 9x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF312LPMC1-G-MJE1 FAQ
1.How can I place an order for CY9AF312LPMC1-G-MJE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF312LPMC1-G-MJE1 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 CY9AF312LPMC1-G-MJE1 reliable?
The price and inventory of CY9AF312LPMC1-G-MJE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF312LPMC1-G-MJE1 is usually 5 days.
3.What payment methods are accepted for CY9AF312LPMC1-G-MJE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF312LPMC1-G-MJE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF312LPMC1-G-MJE1?
CY9AF312LPMC1-G-MJE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF312LPMC1-G-MJE1 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 CY9AF312LPMC1-G-MJE1?
For technical support, including CY9AF312LPMC1-G-MJE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF312LPMC1-G-MJE1 requirements.
6.How does Aetrix verify that CY9AF312LPMC1-G-MJE1 is sourced from the original manufacturer or authorized distributors?
All CY9AF312LPMC1-G-MJE1 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 CY9AF312LPMC1-G-MJE1 meets industry standards.
7.What is the process for return or replacement of CY9AF312LPMC1-G-MJE1?
All CY9AF312LPMC1-G-MJE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF312LPMC1-G-MJE1, 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 CY9AF312LPMC1-G-MJE1 part is unused and in its original packaging.
Return procedure for CY9AF312LPMC1-G-MJE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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