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| MC68HC908QY4A_10 Datasheet, PDF (17/200 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers | |||
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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. 3
Freescale Semiconductor
17
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