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