Overview
The STR711FR0T6 is a member of the STR71x family of microcontrollers produced by STMicroelectronics. This device is based on the ARM7TDMI 32-bit RISC CPU and is designed to offer a high level of integration and performance. It is particularly suited for applications requiring advanced communication interfaces, robust peripheral sets, and efficient power management.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM7TDMI 32-bit RISC CPU |
| Performance | 59 MIPS @ 66 MHz from SRAM, 45 MIPS @ 50 MHz from Flash |
| Flash Memory | Up to 256 Kbytes program memory, 16 Kbytes data memory |
| RAM | Up to 64 Kbytes |
| Operating Voltage | 3.0 to 3.6 V |
| Operating Temperature | -40 to +85°C or 0 to 70°C |
| Package | LQFP64 or BGA64 |
| Communication Interfaces | USB Full Speed, 4 UARTs, 2 I2C, 2 BSPI, Smartcard interface |
| Timers | 5 timers including 16-bit watchdog timer and 3 16-bit timers with PWM and pulse counter |
| A/D Converter | 4-channel 12-bit A/D converter with up to 1 kHz sampling frequency |
| Power Saving Modes | SLOW, WAIT, LPWAIT, STOP, and STANDBY modes |
Key Features
- High-Performance CPU: ARM7TDMI 32-bit RISC CPU with up to 59 MIPS @ 66 MHz from SRAM.
- Advanced Communication Interfaces: Includes USB Full Speed, 4 UARTs, 2 I2C interfaces, 2 BSPI interfaces, and a Smartcard interface.
- Robust Peripheral Set: Features 5 timers, a 16-bit watchdog timer, and a 4-channel 12-bit A/D converter.
- Flexible Power Management: Offers SLOW, WAIT, LPWAIT, STOP, and STANDBY power saving modes to minimize power consumption.
- External Memory Interface: Supports up to 4 banks of external SRAM, Flash, or ROM (not available on 64-pin versions).
- Real-Time Clock (RTC): Provides a clock-calendar function driven by a 32 kHz external crystal.
- Interrupt Handling: Nested interrupt controller with 32 vectors and 16 IRQ priority levels.
Applications
The STR711FR0T6 is versatile and can be used in a variety of applications, including:
- Industrial Automation: For control and monitoring systems that require advanced communication interfaces.
- Automotive Systems: Suitable for in-vehicle systems due to its robust peripheral set and reliable operation over a wide temperature range.
- Consumer Electronics: Ideal for devices that need high-performance processing and multiple communication interfaces.
- Medical Devices: Can be used in medical equipment that requires precise timing and reliable data acquisition.
- IoT Devices: For Internet of Things applications that need efficient power management and advanced communication capabilities.
Q & A
- What is the core architecture of the STR711FR0T6?
The STR711FR0T6 is based on the ARM7TDMI 32-bit RISC CPU.
- What are the available communication interfaces on the STR711FR0T6?
The device includes USB Full Speed, 4 UARTs, 2 I2C interfaces, 2 BSPI interfaces, and a Smartcard interface.
- How much Flash and RAM does the STR711FR0T6 have?
The device has up to 256 Kbytes of Flash program memory and up to 64 Kbytes of RAM.
- What are the operating voltage and temperature ranges for the STR711FR0T6?
The operating voltage range is 3.0 to 3.6 V, and the operating temperature range is -40 to +85°C or 0 to 70°C.
- Does the STR711FR0T6 support external memory?
No, the 64-pin versions like the STR711FR0T6 do not include an External Memory Interface (EMI).
- What power saving modes are available on the STR711FR0T6?
The device offers SLOW, WAIT, LPWAIT, STOP, and STANDBY power saving modes.
- How many timers does the STR711FR0T6 have?
The device features 5 timers, including a 16-bit watchdog timer and 3 16-bit timers with PWM and pulse counter.
- What is the resolution and sampling frequency of the A/D converter?
The A/D converter is a 4-channel 12-bit converter with a sampling frequency of up to 1 kHz.
- Does the STR711FR0T6 have a Real-Time Clock (RTC)?
Yes, it includes an RTC driven by a 32 kHz external crystal.
- How many external interrupts are available on the STR711FR0T6?
Up to 14 external interrupts are available.
- What is the purpose of the Low Voltage Detector (LVD) in the STR711FR0T6?
The LVD keeps the device under reset when the controlled voltage value falls below 1.35V to prevent the MCU from entering an unpredictable state.
