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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY9AF316NAPF-G-JNE1

Name: CY9AF316NAPF-G-JNE1
Brand: Infineon Technologies
SKU: CY9AF316NAPF-G-JNE1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY9AF316NAPF-G-JNE1

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 100-BQFP

Datasheet:: CY9AF316NAPF-G-JNE1.pdf

Description:: IC MCU 32BIT 512KB FLASH 100QFP

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Product details

Overview

CY9AF316NAPF-G-JNE1 from Spansion (formerly Fujitsu Semiconductor) is a 32-bit ARM Cortex-M3 microcontroller targeting high-performance motor control and industrial embedded systems. It features 512 KB on-chip Flash, 32 KB SRAM (split into two 16 KB banks), USB 2.0 Full-Speed Function/Host interface, and 16-channel 12-bit ADC with 1.0 μs conversion time at 5 V. It operates from 2.7 V to 5.5 V and supports up to 40 MHz core frequency.

For engineers reviewing the CY9AF316NAPF-G-JNE1 datasheet, CY9AF316NAPF-G-JNE1 pinout, CY9AF316NAPF-G-JNE1 application, or CY9AF316NAPF-G-JNE1 equivalent, key selection criteria include its dual watchdog timers (HW + SW), QPRC for encoder position sensing, external bus interface (25-bit address, 8/16-bit data, 8 chip selects), 5V-tolerant I/O capability, and integrated CRC accelerator for IEEE-802.3 CRC32 and CCITT CRC16.

Technical Context

The CY9AF316NAPF-G-JNE1 implements the ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus SysTick timer for RTOS scheduling. Its memory subsystem includes zero-wait-state Flash and dual-bus-connected SRAM banks (SRAM0 on I/D-code bus, SRAM1 on system bus), enabling concurrent CPU and DMA access.

Peripheral integration centers on real-time control: dual multi-function timers (each with input capture, output compare, A/D activation, waveform generation, and PPG), quadrature position/revolution counters (QPRC) with configurable AIN/BIN/ZIN edge detection, and motor-specific functions including dead-time insertion (DTIF), DC chopper waveform generation, and PWM signal output - all synchronized to the 16-channel ADC scan engine.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	ARM Cortex-M3 r2p1, 32-bit RISC processor with Thumb-2 instruction set
Max Operating Frequency	40 MHz - enables deterministic real-time response in motor control loops
On-chip Flash Memory	512 KB with 0-wait-state read - supports fast code execution without cache penalty
On-chip SRAM	32 KB total (SRAM0: 16 KB on I/D bus; SRAM1: 16 KB on system bus) - enables parallel CPU/DMA data flow
ADC Resolution & Speed	12-bit SAR ADC, 1.0 μs conversion @ 5 V - meets timing requirements for current-sensing in 20 kHz PWM inverters
USB Interface	USB 2.0 Full-Speed Function/Host with 6 endpoints, double-buffered EP1–5 - enables firmware updates and host-side diagnostics
External Bus Interface	25-bit address, 8/16-bit data, 8 chip selects - supports direct connection to external NOR Flash or SRAM for extended program/data storage

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, lead-free.

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) for USB I/O when active
XTAL / EXTAL	Main oscillator input/output	Supports 4–48 MHz crystal or external clock source for precise system timing
OSC32K / RTC32K	Sub-clock oscillator pins	Connects 32.768 kHz crystal for watch counter and low-power wake-up timing
PA0–PA15, PB0–PB15, etc.	Multi-function GPIO	Up to 83 fast I/O ports; port relocate function allows flexible peripheral pin mapping; selected pins are 5V tolerant
USB_DP / USB_DM	USB differential data lines	Full-Speed USB 2.0 physical layer interface with internal pull-ups and ESD protection
AIN0–AIN15	ADC analog inputs	16 dedicated analog input channels mapped to internal 12-bit SAR ADC with FIFO and priority scanning
QEA / QEB / QEZ	Quadrature encoder inputs	Direct connection to incremental encoder A/B/Z signals for position/speed feedback in motor control

Key Features

Feature	Design Value
Hardware Watchdog Timer	CR oscillator-clocked (100 kHz) - remains active in SLEEP/TIMER/STOP modes for fail-safe reset during low-power operation
CRC Accelerator	Supports IEEE-802.3 CRC32 and CCITT CRC16 with dedicated hardware - offloads integrity checking from CPU for communication and firmware update validation
Quadrature Position Counter (QPRC)	Two independent 16-bit position + 16-bit revolution counters with programmable AIN/BIN/ZIN edge detection - eliminates need for external encoder interface IC
Motor Control Timers	Dual multi-function timers with dead-time insertion (DTIF), PWM output, DC chopper waveform generation, and A/D trigger synchronization - enables single-chip field-oriented control (FOC)
Port Relocate Function	Runtime-configurable peripheral pin assignment - simplifies PCB layout and enables reuse of reference designs across variants

Applications

Industrial Motor Drive

Smart Power Meter

Use Scenario: Closed-loop control of 3-phase BLDC/PMSM motors in HVAC compressors and industrial pumps.

IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, synchronized PWM generation, and encoder-based position feedback via QPRC.

Use Value: Integrated DTIF, QPRC, and 16-channel ADC eliminate external timing and interface ICs, reducing BOM count and board area by ≥3 components.

Use Scenario: High-accuracy energy measurement with tamper detection and secure firmware updates over USB.

IC Role / Device Role / Timing Role: System controller managing metrology ADC interface, LCD driver, RTC, and secure boot via CRC32 validation.

Use Value: Dual watchdog (HW + SW), CRC accelerator, and 5V-tolerant I/O enable robust operation in noisy metering environments and simplify USB-based field reprogramming.

Programmable Logic Controller (PLC) I/O Module

Automated Test Equipment (ATE) Controller

Use Scenario: Modular digital/analog I/O expansion with deterministic scan timing and fieldbus connectivity.

IC Role / Device Role / Timing Role: Central controller handling 16-channel analog input scanning, isolated digital I/O management, and CAN/LIN communication.

Use Value: External bus interface supports local SRAM/NOR Flash for configuration storage; multi-function serial interfaces allow simultaneous LIN and UART debug links.

Use Scenario: Precision stimulus/response sequencing for semiconductor device testing with sub-microsecond timing resolution.

IC Role / Device Role / Timing Role: Timing master coordinating DAC outputs, ADC captures, and GPIO pattern generation using base timers and dual timer units.

Use Value: 40 MHz Cortex-M3 core with zero-wait-state Flash ensures jitter-free execution of tight test loops; 1.0 μs ADC enables 1 MSPS sampling for transient analysis.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MB9AF316MAPF-G-JNE1	Same die, but with 100-pin LQFP package and no 5V-tolerant I/O pins	Lacks 5V-tolerant I/O - unsuitable for mixed-voltage industrial interfaces requiring direct 5V signal handling	Select when cost-sensitive designs do not require 5V-tolerant GPIO and use identical footprint
MB9AF315NAPF-G-JNE1	Same package and 5V-tolerant I/O, but reduced Flash (384 KB) and SRAM (32 KB), no external bus interface	Cannot support external memory expansion - limits firmware size and data logging capacity in complex control applications	Select for space-constrained applications where external memory is unnecessary and firmware fits within 384 KB

Compared with MB9AF316MAPF-G-JNE1 and MB9AF315NAPF-G-JNE1, CY9AF316NAPF-G-JNE1 uniquely combines full external bus support, 512 KB Flash, and 5V-tolerant I/O - making it the only variant suitable for industrial controllers requiring both legacy 5V peripheral interfacing and expandable program storage.

Availability

CY9AF316NAPF-G-JNE1 is available at Aetrix Electronics and suitable for industrial motor drives, smart power meters, PLC I/O modules, and automated test equipment requiring stable component supply and long-term lifecycle support.

Supply support for CY9AF316NAPF-G-JNE1 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

Spansion (now part of Cypress Semiconductor, a subsidiary of Infineon Technologies) was a leading supplier of flash memory and microcontrollers, formed from the spin-off of Fujitsu's semiconductor business and later merged with AMD's flash division.

The MB9A310A Series - including CY9AF316NAPF-G-JNE1 - was designed specifically for cost-sensitive, high-reliability industrial control applications demanding integrated motor control peripherals, robust fault handling, and wide operating voltage range.

FAQ

What is the maximum operating temperature range for CY9AF316NAPF-G-JNE1?

The CY9AF316NAPF-G-JNE1 is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in the DS706-00012-2v0-E datasheet under "Absolute Maximum Ratings" and "Recommended Operating Conditions", and applies to all MB9A310A Series devices in 100-pin LQFP packages.

Does CY9AF316NAPF-G-JNE1 support JTAG debugging?

No - CY9AF316NAPF-G-JNE1 supports Serial Wire JTAG Debug Port (SWJ-DP) only, as stated in the "Debug" section of DS706-00012-2v0-E. It does not implement full JTAG boundary-scan (IEEE 1149.1); SWJ-DP provides SWD and SWO interfaces for programming and real-time trace via CMSIS-DAP or compatible debug probes.

Can the external bus interface access both SRAM and NOR Flash simultaneously?

Yes - the external bus interface supports up to 8 independent chip selects, allowing concurrent connection to multiple memory types. Each chip select can be configured for SRAM or NOR Flash with separate wait-state, data width (8/16-bit), and address multiplexing settings, enabling mixed-memory systems such as boot Flash + working SRAM.

Is USB device enumeration supported without external pull-up resistors?

Yes - the USB_DP pin includes an internal programmable pull-up resistor for USB device enumeration, eliminating the need for external 1.5 kΩ resistor. This is documented in the "USB Interface" section of DS706-00012-2v0-E and verified in the electrical characteristics table for USB I/O.

CY9AF316NAPF-G-JNE1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 100-BQFP

Series:: FM3 MB9A310A

Packaging:: Tray

Product Status:: Discontinued at Digi-Key

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:: 83

Program Memory Size:: 512KB (512K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 32K x 8

Voltage - Supply (Vcc/Vdd):: 2.7V ~ 5.5V

Data Converters:: A/D 16x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

CY9AF316NAPF-G-JNE1 FAQ

1.How can I place an order for CY9AF316NAPF-G-JNE1 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY9AF316NAPF-G-JNE1 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 CY9AF316NAPF-G-JNE1 reliable?

The price and inventory of CY9AF316NAPF-G-JNE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF316NAPF-G-JNE1 is usually 5 days.

3.What payment methods are accepted for CY9AF316NAPF-G-JNE1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF316NAPF-G-JNE1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY9AF316NAPF-G-JNE1?

CY9AF316NAPF-G-JNE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY9AF316NAPF-G-JNE1 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 CY9AF316NAPF-G-JNE1?

For technical support, including CY9AF316NAPF-G-JNE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF316NAPF-G-JNE1 requirements.

6.How does Aetrix verify that CY9AF316NAPF-G-JNE1 is sourced from the original manufacturer or authorized distributors?

All CY9AF316NAPF-G-JNE1 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 CY9AF316NAPF-G-JNE1 meets industry standards.

7.What is the process for return or replacement of CY9AF316NAPF-G-JNE1?

All CY9AF316NAPF-G-JNE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF316NAPF-G-JNE1, 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 CY9AF316NAPF-G-JNE1 part is unused and in its original packaging.

Return procedure for CY9AF316NAPF-G-JNE1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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