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GENERAL DESCRIPTION

The PIC16HV540 from Microchip Technology is a low cost, high-performance, 8-bit, fully-static, EPROM-based CMOS microcontroller. It is pin and software compatible with the PIC16C5X family of devices.

High-Performance RISC CPU:

? Only 33 single word instructions to learn

? All instructions are single cycle (200 ns) except for

program branches which are two-cycle

? Operating speed: DC - 20 MHz clock input

DC - 200 ns instruction cycle

? 12-bit wide instructions

? 8-bit wide data path

? Seven special function hardware registers

? Four-level deep hardware stack

? Direct, indirect and relative addressing modes for

data and instructions

Peripheral Features:

? 8-bit real time clock/counter (TMR0) with 8-bit programmable prescaler

? Power-On Reset (POR)

? Brown-Out Protection

? Device Reset Timer (DRT) with short RC oscillator start-up time

? Programmable Watchdog Timer (WDT) with its

own on-chip RC oscillator for reliable operation

? Sleep Timer

? 8 High Voltage I/O

? 4 Regulated I/O

? Wake up from SLEEP on-pin change

? Programmable code protection

? Power saving SLEEP mode

? Selectable oscillator options:

- RC: Low-cost RC oscillator

- XT: Standard crystal/resonator

- HS: High speed crystal/resonator

- LP: Power saving, low frequency crystal

? Glitch filtering on MCLR and pin change inputs

CMOS Technology:

? Selectable on-chip 3V/5V Regulator

? Low-power, high-speed CMOS EPROM technology

? Fully static design

? Wide-operating voltage range:

- 3.5V to 15V

? Temperature range:

- Commercial: 0°C to 70°C

- Industrial: -40°C to 85°C

? Low-power consumption

- < 2 mA typical @ 5V, 4 MHz

- 15 μA typical @ 3V, 32 kHz

- < 4.5 μA typical standby current @ 15V (with

WDT disabled), 0°C to 70°C