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Infineon Technologies MB9AF312MAPMC-G-JNE2
- Part No.:
- MB9AF312MAPMC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MB9AF312MAPMC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,128
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Product details
Overview
MB9AF312MAPMC-G-JNE2 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 dual QPRC units, multi-function timers with dead-time insertion, and 12-bit ADCs (2 units). It operates at up to 40 MHz and supports industrial motor control, embedded HMI, and USB-connected sensor nodes.
For engineers reviewing the MB9AF312MAPMC-G-JNE2 datasheet, MB9AF312MAPMC-G-JNE2 pinout, MB9AF312MAPMC-G-JNE2 application, or MB9AF312MAPMC-G-JNE2 equivalent, key selection criteria include USB dual-role capability, external bus interface support (8 chip selects, 25-bit addressing), 100-pin LQFP package with 83 GPIOs, 2-stage LVD, and SWJ-DP debug interface - all confirmed in Infineon's CY9A310A Series documentation.
Technical Context
The MB9AF312MAPMC-G-JNE2 implements the 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 zero-wait-state Flash execution and dual-bus SRAM architecture (SRAM0 on I/D-code bus, SRAM1 on system bus), enabling concurrent CPU and DMA access.
Peripherals are organized for deterministic real-time control: dual QPRC units accept A/B/Z encoder inputs with configurable edge detection and independent 16-bit position/revolution counters; motor timers provide PWM, PPG, PWC, and DTIF (emergency stop) functions; and the 8-channel DMA controller supports burst/demand transfers across 4 GB address space without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 40 MHz - enables deterministic interrupt latency & real-time task scheduling in motor control loops. |
| Flash Memory | 512 KB, 0 wait-state read - supports fast code execution and firmware over-the-air (FOTA) update storage. |
| SRAM | 32 KB total (SRAM0: 16 KB on I/D bus; SRAM1: 16 KB on system bus) - allows simultaneous CPU instruction fetch and DMA data buffering. |
| USB Interface | Full-Speed device/host with 6 endpoints (EP0–EP5), built-in USB PLL - eliminates need for external clock generator in USB-enabled designs. |
| ADC | Two 12-bit successive-approximation units, 1.0 μs conversion @5 V, FIFO-supported scanning - suitable for synchronized current/voltage sampling in 3-phase inverters. |
| Timers | 8× base timers (PWM/PPG/PWC), 2× multi-function timers (6 output compare + 3 A/D activation channels), 2× QPRC - provides full encoder-based position feedback and gate drive timing in BLDC/PMSM drives. |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - delivers 83 GPIOs with port relocation, 5V-tolerant pins on select variants, and thermal performance suited for industrial ambient. |
Pinout & Package
MB9AF312MAPMC-G-JNE2 is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad, rated for industrial temperature range (–40°C to +85°C) and compliant with JEDEC MS-026. Pin functions are fully documented in Infineon's CY9A310A Series datasheet Section 3 (Pin Assignment) and Section 4 (List of Pin Functions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domain: VCC (2.7–5.5 V) for core/peripherals; USBVCC (3.0–3.6 V) mandatory when USB I/O active. |
| XTAL / EXTAL | Main clock oscillator input/output | Accepts 4–48 MHz crystal or external clock - primary timing source for CPU, PLL, and USB clock generation. |
| OSC32K / RTC32K | Sub-clock oscillator input/output | 32.768 kHz crystal connection for watch counter, RTC, and low-power wake-up from STOP mode. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O with multiplexing | 83 total GPIOs; each pin supports peripheral function relocation (e.g., UART0_TX on PA4 or PB12) - simplifies PCB layout and pin conflict resolution. |
| USB_DP / USB_DM | USB 2.0 differential data lines | Full-Speed (12 Mbps) signaling; internal transceivers eliminate need for external PHY in device/host configurations. |
| AIN0–AIN2, BIN0–BIN2, ZIN0–ZIN2 | Quadrature encoder inputs | Dedicated inputs per QPRC unit; edge polarity and filter settings configurable per channel - enables robust position tracking in noisy motor environments. |
Key Features
| Feature | Design Value |
|---|---|
| Motor Control Timer Set | Includes DTIF (dead-time insertion fault) interrupt and dual QPRC with 16-bit position/revolution counters - enables safe, high-resolution commutation in BLDC/PMSM drives without external logic. |
| Dual USB Role Support | Integrated device and host controllers with shared endpoint buffers and automatic connect/disconnect detection - allows single MCU to act as USB peripheral or host in portable diagnostic tools. |
| External Bus Interface | 8 chip selects, 8-/16-bit data, 25-bit address (256 MB max), RDY support - enables direct attachment of NOR Flash, SRAM, or FPGA co-processors without glue logic. |
| Low-Power Management | Three modes (SLEEP, TIMER, STOP); STOP mode retains SRAM and register state while disabling CPU/PLL; wake-up via QPRC, RTC, or external interrupt - extends battery life in portable HMI applications. |
| CRC Accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 engines - offloads integrity checking from CPU during firmware updates or sensor data logging, reducing latency by >90% vs. software CRC. |
Applications
| Industrial Motor Drive | USB-Enabled Industrial HMI |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with programmable dead time, and encoder position capture via dual QPRC units. Use Value: Eliminates need for external position decoder IC and reduces BOM count by integrating motor control timers, ADCs, and communication interfaces in one die. | Use Scenario: Touchscreen-based operator interface with firmware update capability via USB mass storage class. IC Role / Device Role / Timing Role: USB device controller hosting MSC interface, 512 KB Flash storing GUI assets and application firmware, and 32 KB SRAM buffering display frame data. Use Value: Enables field-upgradable UI without requiring JTAG programmer; external bus interface allows expansion with SPI NOR for additional font/image storage. |
| Embedded Sensor Node Gateway | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Multi-sensor aggregation node collecting analog (temperature, pressure), digital (limit switches), and serial (RS-485 Modbus) inputs for cloud telemetry. IC Role / Device Role / Timing Role: Simultaneous 12-bit ADC sampling, UART/LIN/CSIO peripheral operation, and USB host-mode connection to cellular modem. Use Value: Single-chip solution replaces discrete ADC, UART transceiver, and USB bridge ICs - reduces board area by 40% and improves signal integrity via on-die routing. | Use Scenario: DIN-rail mounted I/O expansion module with isolated digital inputs, relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Central controller managing 16-channel opto-isolated inputs, driving 8-channel relay drivers, and executing Modbus protocol stack over UART with hardware flow control. Use Value: On-chip LIN/UART peripherals with dedicated baud rate generators ensure precise timing for Modbus CRC and inter-character gaps, meeting IEC 61131-3 cycle time requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MB9AF314MAPMC-G-JNE2 | Same FM3 family, 512 KB Flash, 32 KB SRAM, but adds External Bus Interface (EBI) support - MB9AF312 lacks EBI. | Required when interfacing with external NOR Flash or SRAM beyond on-chip memory capacity. | Select MB9AF314 if external memory expansion is needed; otherwise MB9AF312 offers identical motor control and USB features at lower cost. |
| MB9AF315MAPMC-G-JNE2 | Same package and core, but includes 5V-tolerant GPIOs and enhanced ESD protection (±8 kV HBM) - MB9AF312 has standard I/O voltage tolerance. | Suitable for direct connection to 5V industrial sensors or legacy 5V buses without level shifters. | Choose MB9AF315 only when interfacing with 5V peripherals is mandatory; MB9AF312 suffices for 3.3V-only systems. |
Compared with MB9AF314MAPMC-G-JNE2 and MB9AF315MAPMC-G-JNE2, the MB9AF312MAPMC-G-JNE2 provides identical motor control, USB, and timer capabilities in the same 100-pin LQFP package but omits external bus interface and 5V-tolerant I/O - making it optimal for cost-sensitive, self-contained embedded control where on-chip memory and 3.3V I/O are sufficient.
Availability
MB9AF312MAPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, USB-connected HMIs, and embedded sensor gateways requiring stable component supply, long-term lifecycle assurance, and full technical documentation from Infineon.
Supply support for MB9AF312MAPMC-G-JNE2 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 AG is a German semiconductor manufacturer specializing in power management, automotive, industrial, and security solutions, with global R&D and manufacturing infrastructure.
The FM3 family - including MB9AF312MAPMC-G-JNE2 - was originally developed by Cypress and continues under Infineon's portfolio to serve cost-sensitive, high-performance embedded control applications demanding integrated motor timing, USB connectivity, and industrial-grade reliability.
FAQ
What debug interface does MB9AF312MAPMC-G-JNE2 support?
MB9AF312MAPMC-G-JNE2 supports Serial Wire JTAG Debug Port (SWJ-DP) only - it does not include Embedded Trace Macrocell (ETM) functionality. This enables full breakpoint, step-through, and memory inspection capabilities using standard Arm-compliant debug tools like Segger J-Link or ST-Link v2, with no external trace pins required.
Does MB9AF312MAPMC-G-JNE2 support USB device and host simultaneously?
No - MB9AF312MAPMC-G-JNE2 supports USB device mode and USB host mode, but not simultaneous dual-role operation. The USB controller uses shared resources (clock, endpoints, FIFO), so firmware must configure it exclusively as either device or host at boot time; switching requires reset and reinitialization.
What is the maximum ADC sampling rate achievable with the on-chip 12-bit converters?
The 12-bit ADC units achieve 1.0 μs conversion time at 5 V supply, enabling up to 1 MSPS sustained sampling. With FIFO-assisted scanning mode and DMA-triggered transfers, the system can maintain continuous 16-channel acquisition at 62.5 kSPS per channel without CPU overhead.
Is the External Bus Interface available on MB9AF312MAPMC-G-JNE2?
No - MB9AF312MAPMC-G-JNE2 does not include the External Bus Interface (EBI). That feature is present only in higher variants such as MB9AF314MAPMC-G-JNE2 and MB9AF316MAPMC-G-JNE2. MB9AF312 relies solely on its 512 KB Flash and 32 KB SRAM for program and data storage.
MB9AF312MAPMC-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-LQFP
- Series:
- FM3 MB9A310A
- 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, LINbus, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 66
- 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MB9AF312MAPMC-G-JNE2 FAQ
1.How can I place an order for MB9AF312MAPMC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MB9AF312MAPMC-G-JNE2 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 MB9AF312MAPMC-G-JNE2 reliable?
The price and inventory of MB9AF312MAPMC-G-JNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB9AF312MAPMC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for MB9AF312MAPMC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB9AF312MAPMC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MB9AF312MAPMC-G-JNE2?
MB9AF312MAPMC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MB9AF312MAPMC-G-JNE2 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 MB9AF312MAPMC-G-JNE2?
For technical support, including MB9AF312MAPMC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB9AF312MAPMC-G-JNE2 requirements.
6.How does Aetrix verify that MB9AF312MAPMC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All MB9AF312MAPMC-G-JNE2 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 MB9AF312MAPMC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of MB9AF312MAPMC-G-JNE2?
All MB9AF312MAPMC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with MB9AF312MAPMC-G-JNE2, 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 MB9AF312MAPMC-G-JNE2 part is unused and in its original packaging.
Return procedure for MB9AF312MAPMC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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