MC68HC908 データシートの表示（PDF） - Freescale Semiconductor

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MC68HC908

MC68HC908 Microcontrollers

Freescale Semiconductor 

1.3 MCU Block Diagram

Figure 1-1 shows the structure of the MC68HC908QY4A.

PTA0/TCH0/AD0/KBI0

PTA1/TCH1/AD1/KBI1

PTA2/IRQ/KBI2/TCLK

PTA3/RST/KBI3

PTA4/OSC2/AD2/KBI4

PTA5/OSC1/AD3/KBI5

PTB0/AD4

PTB1/AD5

PTB2

PTB3

PTB4

PTB5

PTB6

PTB7

M68HC08 CPU

MC68HC908QY4A

128 BYTES

USER RAM

MC68HC908QY4A

4096 BYTES

USER FLASH

VDD

POWER SUPPLY

VSS

RST, IRQ: Pins have internal pull up device

All port pins have programmable pull up device

PTA[0:5]: Higher current sink and source capability

PTB[0:7]: Not available on 8-pin devices

Figure 1-1. Block Diagram

MCU Block Diagram

CLOCK

GENERATOR

KEYBOARD INTERRUPT

MODULE

SINGLE INTERRUPT

MODULE

AUTO WAKEUP

MODULE

LOW-VOLTAGE

INHIBIT

2-CHANNEL 16-BIT

TIMER MODULE

COP

MODULE

6-CHANNEL

10-BIT ADC

DEVELOPMENT SUPPORT

MONITOR ROM

BREAK MODULE

MC68HC908QYA/QTA Family Data Sheet, Rev. 2

Freescale Semiconductor

17

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