參數(shù)資料
型號: MC68HC908JK8CDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO20
封裝: SOIC-20
文件頁數(shù): 34/56頁
文件大?。?/td> 648K
代理商: MC68HC908JK8CDW
MC68HC908JL8SM/D
MC68HC908JL8MC68HC908JK8
Figure 1. Block Diagram
SYSTEM INTEGRATION
MODULE
ARITHMETIC/LOGIC
UNIT (ALU)
CPU
REGISTERS
M68HC08 CPU
CONTROL AND STATUS REGISTERS — 64 BYTES
EXTERNAL INTERRUPT
MODULE
INTERNAL BUS
* RST
* IRQ
POWER
VSS
2-CHANNEL TIMER INTERFACE
MODULE 1
KEYBOARD INTERRUPT
MODULE
8-BIT ANALOG-TO-DIGITAL
CONVERTER MODULE
VDD
ADC REFERENCE
D
DRB
PO
RT
B
PTB7/ADC7
PTB6/ADC6
PTB5/ADC5
PTB4/ADC4
PTB3/ADC3
PTB2/ADC2
PTB1/ADC1
PTB0/ADC0
DDR
A
PO
RT
A
PTA6/KBI6**
PTA5/KBI5**
PTA4/KBI4**
PTA3/KBI3**
PTA2/KBI2**
PTA1/KBI1**
PTA0/KBI0**
POWER-ON RESET
MODULE
* Pin contains integrated pull-up device.
** Pin contains programmable pull-up device.
LED direct sink pin.
OSC1
OSC2/RCCLK
CRYSTAL OSCILLATOR
RC OSCILLATOR
DD
RD
PO
RT
D
PTD7/RxD**
PTD6/TxD**
PTD5/T1CH1
PTD4/T1CH0
PTD3/ADC8
PTD2/ADC9
PTD1/ADC10
PTD0/ADC11
BREAK
MODULE
COMPUTER OPERATING
PROPERLY MODULE
# Pins available on 32-pin packages only.
Shared pin: OSC2/RCCLK/PTA6/KBI6.
PTA7/KBI7**
LOW-VOLTAGE INHIBIT
MODULE
SERIAL COMMUNICATIONS
INTERFACE MODULE
PO
RT
E
DD
RE
PTE1/T2CH1
PTE0/T2CH0
INTERNAL OSCILLATOR
ADC12/T2CLK
2-CHANNEL TIMER INTERFACE
MODULE 2
USER FLASH — 8,192 BYTES
USER RAM — 256 BYTES
MONITOR ROM — 959 BYTES
USER FLASH VECTORS — 36 BYTES
#
##
#
##
#
## Pins available on 28-pin and 32-pin packages only.
25mA open-drain if output pin.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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