Overview
The ST72F264G2M6 is a member of the ST7 microcontroller family produced by STMicroelectronics. This 8-bit microcontroller is designed for mid-range applications and features a common industry-standard 8-bit core with an enhanced instruction set. It includes capabilities such as single-voltage FLASH memory with byte-by-byte In-Circuit Programming (ICP) and In-Application Programming (IAP). The device can be placed in various power-saving modes (WAIT, SLOW, Active-HALT, or HALT) to reduce power consumption during idle or stand-by states. The ST72F264G2M6 is equipped with a range of peripherals, including communication interfaces, timers, and analog peripherals, making it versatile for various applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Microcontroller Family | ST7 |
| Core Type | 8-bit |
| Program Memory | 4 K or 8 Kbytes (ROM or single voltage extended Flash) |
| RAM | 256 bytes |
| Analog Peripherals | 10-bit ADC with 6 input channels |
| Communication Interfaces | SPI, I2C (SMBus V1.1 Compliant), SCI |
| Timers | Two 16-bit timers with input captures, output compares, PWM, and pulse generator modes |
| Interrupt Management | Nested interrupt controller, 10 interrupt vectors plus TRAP and RESET, 22 external interrupt lines |
| Clock and Reset Management | Crystal/ceramic resonator oscillators, internal RC oscillator, PLL for 2x frequency multiplication, clock-out capability |
| Power Saving Modes | Halt, Active Halt, Wait, Slow |
| I/O Ports | 22 multifunctional bidirectional I/O lines, 20 alternate function lines, 8 high sink outputs |
| Operating Voltage | 3.8V to 5.5V |
| Operating Temperature | -40°C to +85°C |
Key Features
- Enhanced Instruction Set: 63 basic instructions with illegal opcode detection, 17 main addressing modes, and an 8x8 unsigned multiply instruction.
- Memory Capabilities: Single-voltage FLASH memory with byte-by-byte In-Circuit Programming (ICP) and In-Application Programming (IAP), read-out protection, and write/erase protection.
- Communication Interfaces: SPI synchronous serial interface, I2C multimaster interface (SMBus V1.1 Compliant), and SCI asynchronous serial interface.
- Analog Peripherals: 10-bit ADC with 6 input channels.
- Timers and Watchdog: Two 16-bit timers with input captures, output compares, PWM, and pulse generator modes, and a configurable watchdog timer.
- Interrupt Management: Nested interrupt controller with 10 interrupt vectors plus TRAP and RESET, and 22 external interrupt lines.
- Clock and Reset Management: Crystal/ceramic resonator oscillators, internal RC oscillator, PLL for 2x frequency multiplication, and clock-out capability.
- Power Saving Modes: Halt, Active Halt, Wait, and Slow modes to reduce power consumption.
- I/O Ports: 22 multifunctional bidirectional I/O lines, 20 alternate function lines, and 8 high sink outputs.
Applications
The ST72F264G2M6 is suitable for a variety of mid-range applications that require robust communication interfaces, analog capabilities, and efficient power management. Some typical applications include:
- Industrial Control Systems: Due to its robust communication interfaces and timers, it is ideal for industrial control and automation systems.
- Consumer Electronics: The device's power-saving modes and versatile I/O ports make it suitable for consumer electronics that require low power consumption and multiple functionalities.
- Automotive Systems: Its ability to operate over a wide temperature range and its robust interrupt management make it a good fit for automotive applications.
- Medical Devices: The device's analog peripherals and reliable communication interfaces are beneficial for medical devices that require precise data acquisition and communication.
Q & A
- What is the core type of the ST72F264G2M6 microcontroller?
The ST72F264G2M6 microcontroller is based on an 8-bit core.
- What types of memory does the ST72F264G2M6 support?
The device supports 4 K or 8 Kbytes of program memory (ROM or single voltage extended Flash) and 256 bytes of RAM.
- What are the communication interfaces available on the ST72F264G2M6?
The device features SPI, I2C (SMBus V1.1 Compliant), and SCI asynchronous serial interfaces.
- What is the operating voltage range of the ST72F264G2M6?
The operating voltage range is 3.8V to 5.5V.
- What are the power-saving modes available on the ST72F264G2M6?
The device supports Halt, Active Halt, Wait, and Slow power-saving modes.
- How many I/O ports does the ST72F264G2M6 have?
The device has 22 multifunctional bidirectional I/O lines, with 20 alternate function lines and 8 high sink outputs.
- What is the purpose of the In-Circuit Programming (ICP) feature?
ICP allows the device to be programmed without removing it from the application board, using a specific protocol and pin configuration.
- What is the role of the Low Voltage Detector (LVD) in the ST72F264G2M6?
The LVD generates a reset when the supply voltage (VDD) is below a certain threshold, ensuring safe power-up and power-down procedures.
- Can the ST72F264G2M6 be used in automotive applications?
Yes, the device's robust features, including its wide operating temperature range and reliable interrupt management, make it suitable for automotive applications.
- What is the significance of the enhanced instruction set in the ST72F264G2M6?
The enhanced instruction set provides both power and flexibility to software developers, enabling the design of highly efficient and compact application code.
