Datasheet

MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
MOTOROLA General Description 25
NON-DISCLOSURE AGREEMENT REQUIRED
Data Sheet — MC68HC908QY4
Section 1. General Description
1.1 Contents
1.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1.5 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1.6 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
1.7 Pin Function Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
1.2 Introduction
The MC68HC908QY4 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCUs). The M68HC08
Family is a Complex Instruction Set Computer (CISC) with a Von
Neumann architecture. All MCUs in the family use the enhanced
M68HC08 central processor unit (CPU08) and are available with a
variety of modules, memory sizes and types, and package types.
0.4
Table 1-1. Summary of Device Variations
Device
FLASH
Memory Size
Analog-to-Digital
Converter
Pin
Count
MC68HC908QT1 1536 bytes — 8 pins
MC68HC908QT2 1536 bytes 4 ch, 8 bit 8 pins
MC68HC908QT4 4096 bytes 4 ch, 8 bit 8 pins
MC68HC908QY1 1536 bytes — 16 pins
MC68HC908QY2 1536 bytes 4 ch, 8 bit 16 pins
MC68HC908QY4 4096 bytes 4 ch, 8 bit 16 pins