規格
| 屬性 | 價值 |
| Supplier | STMicroelectronics |
| Package | Tray |
| Series | ST7 |
| ProductStatus | Obsolete |
| CoreProcessor | ST7 |
| CoreSize | 8-Bit |
| Speed | 8MHz |
| Connectivity | I²C, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| NumberofI/O | 32 |
| ProgramMemorySize | 60KB (60K x 8) |
| ProgramMemoryType | FLASH |
| RAMSize | 2K x 8 |
| Voltage-Supply(Vcc/Vdd) | 3.8V ~ 5.5V |
| DataConverters | A/D 16x10b |
| OscillatorType | Internal |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 44-LQFP |
概述
Description
ST72F321BJ9T6 is an 8-bit microcontroller from STMicroelectronics, part of the ST72F family. It’s designed for cost‑sensitive embedded control tasks.
Key points:
- Core and memory: 8-bit core with on‑chip flash program memory and RAM (exact sizes vary by variant; see datasheet).
- Peripherals: GPIO, timers and watchdog, ADC, and serial communications (UART, SPI, I2C). Also includes basic analog comparator and power‑management features.
- Power and packaging: supports low‑power modes with wake‑up. The suffix BJ9T6 encodes the specific packaging and temperature range; check the datasheet for details.
- Applications: suitable for automotive body/electronics, consumer appliances, and other small embedded control tasks.
- Development: use ST’s toolchain and programmers (e.g., STVD/Keil/IAR with STVP for in‑circuit programming). For exact specifications, pinout, and memory sizes, consult the official datasheet and reference manual.
Key points:
- Core and memory: 8-bit core with on‑chip flash program memory and RAM (exact sizes vary by variant; see datasheet).
- Peripherals: GPIO, timers and watchdog, ADC, and serial communications (UART, SPI, I2C). Also includes basic analog comparator and power‑management features.
- Power and packaging: supports low‑power modes with wake‑up. The suffix BJ9T6 encodes the specific packaging and temperature range; check the datasheet for details.
- Applications: suitable for automotive body/electronics, consumer appliances, and other small embedded control tasks.
- Development: use ST’s toolchain and programmers (e.g., STVD/Keil/IAR with STVP for in‑circuit programming). For exact specifications, pinout, and memory sizes, consult the official datasheet and reference manual.
Features
ST72F321BJ9T6 is an 8-bit ST7-family microcontroller. Key features include:
- ST7-based 8-bit CPU for simple control tasks
- On-chip Flash program memory and RAM
- General-purpose I/O ports
- Timers with PWM capability (one or more 8/16-bit timers)
- Analog peripherals: ADC and/or analog comparator
- Serial interfaces: USART/UART, I2C, SPI
- Watchdog timer and reset/navigation features
- Clock options: internal RC oscillator and external clock/crystal support
- Low-power modes with wakeup options for energy efficiency
- Interrupt controller with multiple sources
- In-system programming/debug interface
Note: exact memory sizes, package options, voltage ranges, and speed grades vary by device variant. Please refer to the official datasheet for precise specifications.
- ST7-based 8-bit CPU for simple control tasks
- On-chip Flash program memory and RAM
- General-purpose I/O ports
- Timers with PWM capability (one or more 8/16-bit timers)
- Analog peripherals: ADC and/or analog comparator
- Serial interfaces: USART/UART, I2C, SPI
- Watchdog timer and reset/navigation features
- Clock options: internal RC oscillator and external clock/crystal support
- Low-power modes with wakeup options for energy efficiency
- Interrupt controller with multiple sources
- In-system programming/debug interface
Note: exact memory sizes, package options, voltage ranges, and speed grades vary by device variant. Please refer to the official datasheet for precise specifications.
Pinout
- Pin count: 32 pins (32-pin package)
- Function: ST72F321BJ9T6 is an 8‑bit microcontroller from STMicroelectronics (ST7 core) for embedded control. It includes on‑chip flash and RAM, multiple I/O pins, timers, and serial interfaces (SCI/UART, SPI/I2C), plus analog-to-digital converter and miscellaneous peripherals for general-purpose control applications.
- Function: ST72F321BJ9T6 is an 8‑bit microcontroller from STMicroelectronics (ST7 core) for embedded control. It includes on‑chip flash and RAM, multiple I/O pins, timers, and serial interfaces (SCI/UART, SPI/I2C), plus analog-to-digital converter and miscellaneous peripherals for general-purpose control applications.
Manufacturer
Manufacturer: STMicroelectronics (ST).
What kind of company: A multinational semiconductor and electronics company, designing and manufacturing integrated circuits, microcontrollers, sensors, and other semiconductor devices.
What kind of company: A multinational semiconductor and electronics company, designing and manufacturing integrated circuits, microcontrollers, sensors, and other semiconductor devices.
Application
ST72F321BJ9T6 is an 8‑bit ST7 MCU designed for compact, low‑power control tasks. Common application areas include:
- Automotive body electronics and instrumentation
- Home appliances and consumer electronics (controls, displays, keypads)
- Industrial and building automation (sensors, I/O, simple controllers)
- Motor and power control for small DC motors and fans
- Sensor data acquisition and basic signal processing
- Security and remote‑control devices
These use cases leverage its low power, peripherals (ADC, timers, serial interfaces), and compact package.
- Automotive body electronics and instrumentation
- Home appliances and consumer electronics (controls, displays, keypads)
- Industrial and building automation (sensors, I/O, simple controllers)
- Motor and power control for small DC motors and fans
- Sensor data acquisition and basic signal processing
- Security and remote‑control devices
These use cases leverage its low power, peripherals (ADC, timers, serial interfaces), and compact package.
Package
20-pin surface-mount package, typically SO-20 (SOP-20).
