STR731FV1T6

Microcontrollers Overview

The STR731FV1T6 is a 32-bit microcontroller from the STR73xF family, featuring an ARM7TDMI core operating at up to 36 MHz. It includes 128 Kbytes of Flash program memory and 16 Kbytes of RAM. The device provides three CAN interfaces compliant with V2.0B Active, four UARTs, two I2C interfaces, and three BSPIs. It supports up to 72 multifunctional bidirectional I/O ports and features a 10-bit ADC with 12 channels. Power management includes five modes: SLOW, WFI, LPWFI, STOP, and HALT.

Microcontrollers Feature Summary

• ARM7TDMI 32-bit RISC CPU with embedded Flash and RAM
• Three CAN interfaces compliant with CAN specification V2.0 part B (active)
• Flexible power management with five low-power modes
• Extensive peripheral set including timers, PWM modules, and DMA controllers

Microcontrollers Applications

• Industrial control systems requiring CAN communication
• Automotive applications utilizing multiple CAN buses
• Embedded systems needing real-time clock and alarm functions
• Motor control applications using PWM and timer peripherals

Microcontrollers Procurement Notes

Verify the specific ordering suffix T6 for the TQFP100 package configuration. Confirm that the F1 variant corresponds to the 128 Kbyte Flash memory size as defined in the device summary table. Ensure compatibility with existing JTAG debugging infrastructure and ARM development tools. Check for any known limitations regarding PLL free running mode at high temperatures if applicable to your design environment.

Microcontrollers Selection Notes

Select this component when a robust ARM7 architecture with native CAN support is required. The 100-pin TQFP package offers a balance between pin count and feature availability. Consider the 4.5V to 5.5V supply voltage range for direct interface with 5V logic systems. Evaluate the available I/O ports against your application's connectivity needs, noting the reduction in timers and ADC channels compared to the 144-pin versions.

Microcontrollers Part Context

The STR731FV1T6 belongs to the STR73xF family of microcontrollers designed by STMicroelectronics. This family integrates the ARM7TDMI core with high-speed single-voltage Flash memory. The STR731 variant specifically provides 128 Kbytes of Flash memory. It is part of a broader ecosystem supported by various development tools and software libraries for embedded applications.

Microcontrollers Replacement Considerations

Direct replacements within the same package and memory configuration include other STR731FVx variants with different Flash sizes or temperature grades. Cross-family migration to newer STM32 series may require significant architectural changes due to differences in core architecture and peripheral sets.