Energy Meter/Monitor microcontroller with dual-channel 16-/24-bit Analog Front End, 12-bit 12-channel SAR ADC, 132-pixel LCD, 128KB Flash, 4KB RAM, HW RTCC and CTMU module in 80-pin TQFP packge. These devices are ideal for Multi-function Single-Phase Smart Meters and Energy Monitors.
Dual-channel 16-/24-bit Analog Front End (AFE) with Delta-Sigma A/D Converters and high-gain PGAs for 90 dB SINAD and -101 dBc THD (to 35th harmonic) performance
12-bit, 12-channel, 100ksps SAR A/D Converter
LCD driver for up to 132 pixels with voltage boost regulator
Hardware Real-Time Clock & Calendar
Charge Time Measurement Unit (CTMU)for temperature sensing and capacitive touch
Two Analog Comparators
Two UARTs
One Master Synchronous Serial Port (MSSP) support SPI™ and I2C™
Four Timers
Two Capture/Compare/PWM (CCP)
Up to 12 MIPS performance
Internal oscillator support 31kHz to 8MHz and 4xPLL
8x8 Single Cycle Hardware Multiply
nanoWatt low power with Run, Idle and Sleep modes
Brown-Out-Reset (BOR)
Low Voltage Detect (LVD)
Operating Voltage Range: 2.0 to 3.6V for Digital and 12-bit ADC; 4.5 to 5.5V for 16-/24-bit Analog Front End (AFE)
PIC18F87J72 封装图
PIC18F87J72 封装图
PIC18F87J72 封装图
型号 | 制造商 | 描述 | 购买 |
---|---|---|---|
PIC18F87J72T-I/PT | Mechatronics Fan Group | 120MMFINGERGUARD | 立即购买 |
PIC18F87J72-I/PT | PUI Audio | SPEAKER8OHM1.5W85DB | 立即购买 |
每次单片机加电时,上电复位电路都要对电源电压VDD的上升过程进行检测,当VDD值上升到规定值1.6~1.8V时,就产生一个有效的复位信号,需经过72ms加1024个时钟周期的延时,才会使单片机复位。
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