MC68HC705P6A Datasheet, PDF(19/130 Page) Motorola, Inc

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MC68HC705P6A Datasheet, PDF (19/130 Pages) Motorola, Inc – HCMOS Microcontroller Unit

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Advance Information â MC68HC705P6A

Section 1. General Description

1.1 Contents

1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1.4 Functional Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1.4.1

1.4.2

VDD and VSS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

OSC1 and OSC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

1.4.2.1

1.4.2.2

Crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Ceramic Resonator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1.4.2.3 External Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

1.4.3 RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1.4.4 PA0âPA7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1.4.5 PB5/SDO, PB6/SDI, and PB7/SCK . . . . . . . . . . . . . . . . . . .24

1.4.6 PC0-PC2, PC3/AD3, PC4/AD2, PC5/AD1, PC6/AD0,

1.4.7

and PC7/VREFH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

PD5 and PD7/TCAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

1.4.8 TCMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

1.4.9 IRQ/VPP (Maskable Interrupt Request) . . . . . . . . . . . . . . . . 25

1.2 Introduction

The MC68HC705P6A is an EPROM version of the MC68HC05P6

microcontroller. It is a low-cost combination of an M68HC05 Family

microprocessor with a 4-channel, 8-bit analog-to-digital (A/D) converter,

a 16-bit timer with output compare and input capture, a serial

communications port (SIOP), and a computer operating properly (COP)

watchdog timer. The M68HC05 CPU core contains 176 bytes of RAM,

4672 bytes of user EPROM, 239 bytes of bootloader ROM, and 21

input/output (I/O) pins (20 bidirectional, 1 input-only). This device is

MC68HC705P6A â Rev. 2.0

MOTOROLA

General Description

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