Overview
The ST72F321J7T6 is a member of the ST7 microcontroller family designed by STMicroelectronics for mid-range applications. This 8-bit microcontroller is based on a common industry-standard core, featuring an enhanced instruction set and available with either FLASH or ROM program memory. The device supports various power-saving modes, including WAIT, SLOW, ACTIVE-HALT, and HALT, which can be controlled under software to reduce power consumption during idle or stand-by states. This microcontroller is known for its efficiency and flexibility, enabling the development of highly efficient and compact application code.
Key Specifications
| Specification | Details |
|---|---|
| Core Type | 8-bit |
| Program Memory | 32K to 60K FLASH or ROM |
| RAM | 1K to 2K |
| Analog Peripheral | 10-bit ADC with up to 16 input ports |
| Communication Interfaces | SPI, SCI, I2C |
| Timers | Five timers including real-time base, watchdog timer, 16-bit timers, and 8-bit PWM auto-reload timer |
| Interrupt Management | Nested interrupt controller with 14 interrupt vectors plus TRAP and RESET |
| Power Saving Modes | Halt, Active-Halt, Wait, Slow |
| Clock Sources | Crystal/ceramic resonator oscillators, internal RC oscillator, clock security system, PLL for 2x frequency multiplication |
| I/O Ports | Up to 48 multifunctional bidirectional I/O lines |
Key Features
- Enhanced Instruction Set: 63 basic instructions, 17 main addressing modes, and an 8x8 unsigned multiply instruction.
- Analog Peripheral: 10-bit ADC with up to 16 input ports.
- Communication Interfaces: SPI synchronous serial interface, SCI asynchronous serial interface, and I2C multimaster interface.
- Timers: Five timers including a main clock controller, configurable watchdog timer, two 16-bit timers, and an 8-bit PWM auto-reload timer.
- Interrupt Management: Nested interrupt controller with 14 interrupt vectors plus TRAP and RESET, and 15 external interrupt lines.
- Power Management: Enhanced low voltage supervisor (LVD) and auxiliary voltage detector (AVD) with interrupt capability, and four power-saving modes.
- I/O Ports: Up to 48 multifunctional bidirectional I/O lines with high sink outputs.
Applications
The ST72F321J7T6 microcontroller is suitable for a variety of mid-range applications, including industrial control systems, consumer electronics, automotive systems, and other embedded systems that require efficient processing and multiple peripheral functionalities. Its robust set of features and power-saving modes make it an ideal choice for applications where both performance and energy efficiency are critical.
Q & A
- What is the core type of the ST72F321J7T6 microcontroller?
The ST72F321J7T6 is based on an 8-bit core. - What types of program memory are available for the ST72F321J7T6?
The device is available with either 32K to 60K FLASH or ROM program memory. - What are the communication interfaces supported by the ST72F321J7T6?
The device supports SPI, SCI, and I2C communication interfaces. - How many timers does the ST72F321J7T6 have?
The ST72F321J7T6 features five timers, including a main clock controller, watchdog timer, two 16-bit timers, and an 8-bit PWM auto-reload timer. - What power-saving modes are available on the ST72F321J7T6?
The device supports Halt, Active-Halt, Wait, and Slow power-saving modes. - What is the maximum number of I/O ports available on the ST72F321J7T6?
The device has up to 48 multifunctional bidirectional I/O lines. - Does the ST72F321J7T6 support in-application programming?
Yes, the ST72F321J7T6 supports in-application programming (IAP) for HDFlash devices. - What is the endurance and data retention of the HDFlash memory?
The HDFlash memory has an endurance of 100 cycles and data retention of 20 years at 55°C. - What are the clock sources available for the ST72F321J7T6?
The device supports crystal/ceramic resonator oscillators, internal RC oscillator, clock security system, and PLL for 2x frequency multiplication. - Is there any development support for the ST72F321J7T6?
Yes, a full hardware/software development package is available, including In-Circuit Testing capability).
