Описание
The PIC18F8723 family of devices offers the advantages of all PIC18 microcontrollers – namely, high computational performance at an economical price – with the addition of high-endurance, Enhanced Flash program memory. In addition to these features, the PIC18F8723 introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power-sensitive applications. Special Features 12-Bit A/D Converter: The PIC18F8723 family implements a 12-bit A/D Converter. A/D Converters in both families incorporate programmable acquisition time. This allows for a channel to be selected and a conversion to be initiated, without waiting for a sampling period and thus, reducing code overhead. Details on Individual Family Members Devices in the PIC18F8723 family are available in 64-pin and 80-pin packages. The devices are differentiated from each other in the following ways: Flash program memory (96 Kbytes for PIC18FX628 devices and 128 Kbytes for PIC18FX723). A/D channels (12 for PIC18F6628/6723 devices and 16 for PIC18F8628/8723 devices). I/O ports (seven bidirectional ports on PIC18F6628/6723 devices and nine bidirectional ports on PIC18F8628/8723 devices). External Memory Bus, configurable for 8 and 16-bit operation All other features for devices in this family are identical. Like all Microchip PIC18 devices, members of the PIC18F8723 family are available as both standard and low-voltage devices. Standard devices with Enhanced Flash memory, designated with an “F” in the part number (such as PIC18F6628), accommodate an operating VDD range of 4.2V to 5.5V. Low-voltage parts, designated by “LF” (such as PIC18LF6628), function over an extended VDD range of 2.0V to 5.5V.
- Peripheral Highlights:
- 12-Bit, Up to 16-Channel Analog-to-Digital Converter module (A/D):
- Auto-acquisition capability
- Conversion available during Sleep
- Two Master Synchronous Serial Port (MSSP) modules supporting 2/3/4-Wire SPI (all four modes) and I2C™ Master and Slave modes
- Two Capture/Compare/PWM (CCP) modules
- Three Enhanced Capture/Compare/PWM (ECCP) modules:
- One, two or four PWM outputs
- Selectable polarity
- Programmable dead time
- Auto-shutdown and auto-restart
- Two Enhanced Addressable USART modules:
- Supports RS-485, RS-232 and LIN 1.2
- Auto-wake-up on Start bit
- Auto-Baud Detect
- Dual Analog Comparators with Input Multiplexing
- High-Current Sink/Source 25 mA/25 mA
- Four Programmable External Interrupts
- Four Input Change Interrupts
- External Memory Interface:
- Address Capability of Up to 2 Mbytes
- 8-Bit or 16-Bit Interface
- 8, 12, 16 and 20-Bit Address modes
- Power-Managed Modes:
- Run: CPU on, Peripherals on
- Idle: CPU off, Peripherals on
- Sleep: CPU off, Peripherals off
- Idle mode Currents Down to 15 µA Typical
- Sleep Current Down to 0.2 µA Typical
- Timer1 Oscillator: 1.8 µA, 32 kHz, 2V
- Watchdog Timer: 2.1 µA
- Special Microcontroller Features:
- C Compiler Optimized Architecture:
- Optional extended instruction set designed to optimize re-entrant code
- 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical
- 1,000,000 Erase/Write Cycle Data EEPROM Memory Typical
- Flash/Data EEPROM Retention: 100 Years Typical
- 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 131s
- Single-Supply In-Circuit Serial Programming™ (ICSP™) via Two Pins
- In-Circuit Debug (ICD) via Two Pins
- Wide Operating Voltage Range: 2.0V to 5.5V
- Fail-Safe Clock Monitor
- Two-Speed Oscillator Start-up
- nanoWatt Technology
