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Microchip PIC18F86J72 / PIC18F87J72 MCUs
Microchip Technology PIC18F86J72
/
PIC18F87J72 high-performance microcontrollers
(
MCUs
) are 8-bit devices for single-phase, multi-function smart metering and energy monitoring applications.
PIC18F86J72
and
PIC18F87J72 MCUs
feature a dual-channel, high-performance 24-bit analog front end (AFE) and a 12-bit SAR A/D converter, making these
Microchip Technology
devices an accurate, reliable, easy-to-use and cost-effective solution for developing meters that exceed IEC class 0.5 performance. This
Microchip Technology MCU
family includes 64 or 128 KB Flash program memory and 4 KB RAM to enable time-of-use and multi-tariff functions.
PIC18F86J72
and
PIC18F87J72 MCUs
provide a high level of peripheral integration, including an LCD driver, RTCC, and charge-time measurement unit (CTMU) that enables a capacitive-touch user interface.
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Features
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Dual-channel 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
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12-bit, 12-channel, 100ksps SAR A/D Converter
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LCD driver for up to 132 pixels with voltage boost regulator
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Hardware Real-Time Clock & Calendar
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Charge Time Measurement Unit (CTMU) for temperature sensing and capacitive touch
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Two Analog Comparators
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Two UARTs
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One Master Synchronous Serial Port (MSSP) support SPI™ and I²C™
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Four Timers
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Two Capture/Compare/PWM (CCP)
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Internal oscillator support 31kHz to 8MHz and 4xPLL
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nanoWatt low power with Run, Idle and Sleep modes
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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)
Applications
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Energy Metering
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Power Measurement and Monitoring
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Portable Instrumentation
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Medical Monitoring
Special MCU Features
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Up to 12 MIPS performance
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10,000 Erase/Write Cycle Flash Program Memory, Typical
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Flash Retention 20 Years, Minimum
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Self-Programmable under Software Control
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Word Write Capability for Flash Program Memory for Data EEPROM Emulators
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Priority Levels for Interrupts
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8 x 8 Single-Cycle Hardware Multiplier
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Extended Watchdog Timer (WDT): Programmable period from 4 ms to 131s
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Selectable Open-Drain Configuration for Serial Communication and CCP pins for Driving Outputs up to 5V
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In-Circuit Serial Programming™ (ICSP™) via Two Pins
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In-Circuit Debug via Two Pins
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Operating Voltage Range: 4.5V to 5.5V (Delta Sigma ADC), 2.0V to 3.6V (digital and SAR ADC)
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5.5V Tolerant Input (digital pins only)
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On-Chip 2.5V Regulator
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Typical Application Circuit
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