參數(shù)資料
型號: MC68HC05J3CDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封裝: PLASTIC, SOIC-20
文件頁數(shù): 8/92頁
文件大小: 912K
代理商: MC68HC05J3CDW
MOTOROLA
1-2
MC68HC05J3
INTRODUCTION
1
1.2
MC68HC05J3 mask options
There are four mask options on the MC68HC05J3 which are programmed during manufacture and
therefore must be specied on the order form: IRQ sensitivity (edge sensitive or edge-and-level
sensitive), COP watchdog enable/disable, STOP instruction enable/disable and RC or crystal
clock selection.
Figure 1-1 MC68HC05J3 block diagram
PA0
Oscillator and divide by 2
2048 bytes
User ROM
240 bytes
self-check ROM
128 bytes
RAM
8-bit timer and COP
RESET
IRQ
OSC1
OSC2
M68HC05
CPU
watchdog system
PA1
PA2
PA3
PA4
PA5
PA6
PA7
P
or
tA
PB0
PB1
PB2
PB3
PB4
PB5
P
or
tB
Keyboard
Interrupt
16-bit timer
KI0
KI1
KI2
K!3
TCMP
TCAP
VDD
VSS
(plus 16 bytes user vectors)
TPG
13
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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