Description
PIC18F66K90 combines the traditional advantages of all PIC18 microcontrollers – namely, high computational performance and a rich feature set – with a versatile on-chip LCD driver, while maintaining an extremely competitive price point. These features make the PIC18F87K90 family a logical choice for many high-performance applications where price is a primary consideration All of the devices in the PIC18F87K90 family incorporate a range of features that can significantly reduce power consumption during operation Alternate Run Modes: By clocking the controller from the Timer1 source or the internal RC oscillator, power consumption during code execution can be reduced. Multiple Idle Modes: The controller can also run with its CPU core disabled but the peripherals still active. In these states, power consumption can be reduced even further. On-the-Fly Mode Switching: The power-managed modes are invoked by user code during operation, allowing the user to incorporate power-saving ideas into their application’s software design. nanoWatt XLP: An extra low-power BOR, RTCC and low-power Watchdog Timer. Also, an ultra low-power regulator for Sleep mode is provided in regulator-enabled modes All of the devices in the PIC18F87K90 family offer different oscillator options, allowing users a range of choices in developing application hardware. These include:External Resistor/Capacitor (RC); RA6 available External Resistor/Capacitor with Clock Out (RCIO) Three External Clock modes: – External Clock (EC); RA6 available – External Clock with Clock Out (ECIO) – External Crystal (XT, HS, LP) A Phase Lock Loop (PLL) frequency multiplier, available to the External Oscillator modes which allows clock speeds of up to 64 MHz. PLL can also be used with the internal oscillator An internal oscillator block that provides a 16 MHz clock (±2% accuracy) and an INTRC source (approximately 31 kHz, stable over temperature and VDD) – Operates as HF-INTOSC or MF-INTOSC when block selected for 16 MHz or 500 kHz – Frees the two oscillator pins for use as additional general purpose I/O The internal oscillator block provides a stable reference source that gives the family additional features for robust operation: Fail-Safe Clock Monitor: This option constantly monitors the main clock source against a reference signal provided by the internal oscillator. If a clock failure occurs, the controller is switched to the internal oscillator, allowing for continued low-speed operation or a safe application shutdown.
- Operating Voltage Range: 1.8V to 5.5V
- On-Chip 3.3V Regulator
- Operating Speed up to 64 MHz
- Up to 128 Kbytes On-Chip Flash Program Memory
- Data EEPROM of 1,024 Bytes
- 4K x 8 General Purpose Registers (SRAM)
- 10,000 Erase/Write Cycle Flash Program Memory, Minimum
- 1,000,000 Erase/write Cycle Data EEPROM Memory, Typical
- Flash Retention 40 Years, Minimum
- Three Internal Oscillators: LF-INTRC (31 kHz), MF-INTOSC (500 kHz) and HF-INTOSC (16 MHz)
- Self-Programmable under Software Control
- Priority Levels for Interrupts
- 8 x 8 Single-Cycle Hardware Multiplier
- Extended Watchdog Timer (WDT): – Programmable period from 4 ms to 4,194s (about 70 minutes)
- In-Circuit Serial Programming™ (ICSP™) via Two Pins
- In-Circuit Debug via Two Pins
- Programmable: – BOR – LVD
- Two Enhanced Addressable USART modules: – LIN/J2602 support – Auto-Baud Detect (ABD)
- 12-Bit A/D Converter with up to 24 Channels: – Auto-acquisition and Sleep operation – Differential Input mode of operation
