MC68HC705E5 Datasheet, PDF(17/148 Page) Freescale Semiconductor, Inc

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MC68HC705E5 Datasheet, PDF (17/148 Pages) Freescale Semiconductor, Inc – General Release Specification

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Freescale Semiconductor, Inc.

General Release Specification â MC68HC705E5

Section 1. General Description

1.1 Contents

1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

1.4 Mask Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

1.5 Functional Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

1.5.1

1.5.2

1.5.3

VDD and VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

IRQ/VPP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

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

1.5.4 RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

1.5.5 PA0âPA7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

1.5.6 PB0âPB7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

1.5.7 PC0âPC3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

1.5.8 XFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

1.5.9 VDDSYN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

1.2 Introduction

The MC68HC705E5 is a low-cost introduction to the M68HC05 Family

of microcontrollers (MCUs). The HC05 central processing unit (CPU)

core has been enhanced with a 15-stage multifunctional timer and

programmable phase-locked loop (PLL). The MCU is available in a

28-pin package and has two 8-bit input/output (I/O) ports and one 4-bit

I/O port. The 8-Kbyte memory map consists of user eraseable,

programmable read-only memory (EPROM), random-access memory

(RAM), bootloader ROM, and I/O.

MC68HC705E5 â Rev. 1.0

General Release Specification

General Description

For More Information On This Product,

Go to: www.freescale.com

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