UPD78F9212MA-FAA-E1-AX

核心优势

• 内置 8MHz 高速振荡器 省去外部晶振 降低成本与故障率
• 2.0V 至 5.5V 宽工作电压 一颗芯片兼容 3.3V 与 5V 系统
• 内置上电清零 POC 电路 简化复位电路设计
• SSOP-16 小封装 适合空间受限的小型控制板

主要特性

• Operating voltage: VDD = 2.0 to 5.5 V
• Standard product, (A) grade product: 2.2 to 5.5 V, (A2) grade product: 2.26 to 5.5 V
• Max. Frequency 10 MHz
• ROM capacities: 1 KB to 8 KB flash memory
• RAM capacities: 128 bytes to 256 bytes
• Package: 10 pin plastic SSOP, 16-pin Plastic SSOP, SDIP and WLBGA package, 20 pin plastic SSOP and plastic SDIP package, 30-pin Plastic SSOP and 32-pin SDIP package"
• 78K0S CPU core
• Minimum instruction execution time: 0.2 μs (with 10 MHz @4.0 to 5.5 V operation)
• Clock
• Ceramic/crystal resonator: 2 to 10 MHz (Standard product, (A) grade product) / 2 to 8 MHz ((A2) grade product)
• External clock: 2 to 10 MHz (Standard product, (A) grade product) / 2 to 8 MHz ((A2) grade product)
• High-speed internal oscillator: 8 MHz ±3% (-10 to +70°C), 8 MHz ±5% (Standard product, (A) grade product: -40 to +85°C, (A2)grade product: -40 to +125°C)
• Low-speed internal oscillator 240 kHz (TYP.) Watchdog timer, timer clock in intermittent operation
• 8 : 10-pin products
• 14 (CMOS I/O: 13, CMOS input: 1) : 16-pin products
• 17 (CMOS I/O: 15, CMOS input: 1, CMOS output: 1) : 20-pin products
• 26 (CMOS I/O: 24, CMOS input: 1, CMOS output: 1) : 30-pin products
• 16-bit timer/event counter: 1 channel Timer output x 1, capture input x 2
• 8-bit timer: 2 channels PWM output x 1
• Watchdog timer: 1 channel Operable with low-speed internal oscillation clock
• Serial interface: UART (LIN (Local Interconnect Network) bus supported) 1 channel
• 10-bit resolution A/D converter: 0/4 channels
• On-chip power-on-clear (POC) circuit (A reset is automatically generated when the voltage drops to 2.1 V (TYP.) or below)
• Detection voltage: Selectable from ten levels between 2.35 and 4.3 V

使用与设计要点

以下要点来自实际项目中反复出现的问题，比数据手册的极限参数更接近工程现场。