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PIC18F4510 Datasheet(PDF) 9 Page - Microchip Technology |
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PIC18F4510 Datasheet(HTML) 9 Page - Microchip Technology |
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9 / 380 page  2004 Microchip Technology Inc. Preliminary DS39636A-page 7 PIC18F2X1X/4X1X 1.0 DEVICE OVERVIEW This document contains device specific information for the following devices: This family offers the advantages of all PIC18 microcontrollers – namely, high computational performance at an economical price – with the addition of high-endurance, Flash program memory. On top of these features, the PIC18F2X1X/4X1X family introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power sensitive applications. 1.1 New Core Features 1.1.1 nanoWatt TECHNOLOGY All of the devices in the PIC18F2X1X/4X1X family incorporate a range of features that can significantly reduce power consumption during operation. Key items include: • Alternate Run Modes: By clocking the controller from the Timer1 source or the internal oscillator block, power consumption during code execution can be reduced by as much as 90%. • 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, to as little as 4% of normal operation requirements. • 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. • Lower Consumption in Key Modules: The power requirements for both Timer1 and the Watchdog Timer have been minimized. See Section 25.0 “Electrical Characteristics” for values. 1.1.2 MULTIPLE OSCILLATOR OPTIONS AND FEATURES All of the devices in the PIC18F2X1X/4X1X family offer ten different oscillator options, allowing users a wide range of choices in developing application hardware. These include: • Four Crystal modes, using crystals or ceramic resonators • Two External Clock modes, offering the option of using two pins (oscillator input and a divide-by-4 clock output) or one pin (oscillator input, with the second pin reassigned as general I/O) • Two External RC Oscillator modes with the same pin options as the External Clock modes • An internal oscillator block which provides an 8 MHz clock and an INTRC source (approxi- mately 31 kHz), as well as a range of 6 user selectable clock frequencies, between 125 kHz to 4 MHz, for a total of 8 clock frequencies. This option frees the two oscillator pins for use as additional general purpose I/O. • A Phase Lock Loop (PLL) frequency multiplier, available to both the high-speed crystal and internal oscillator modes, which allows clock speeds of up to 40 MHz. Used with the internal oscillator, the PLL gives users a complete selection of clock speeds, from 31 kHz to 32 MHz – all without using an external crystal or clock circuit. Besides its availability as a clock source, 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 block, allowing for continued low-speed operation or a safe application shutdown. • Two-Speed Start-up: This option allows the internal oscillator to serve as the clock source from Power-on Reset, or wake-up from Sleep mode, until the primary clock source is available. • PIC18F2410 • PIC18LF2410 • PIC18F2510 • PIC18LF2510 • PIC18F2515 • PIC18LF2515 • PIC18F2610 • PIC18LF2610 • PIC18F4410 • PIC18LF4410 • PIC18F4510 • PIC18LF4510 • PIC18F4515 • PIC18LF4515 • PIC18F4610 • PIC18LF4610 |
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