參數資料
型號: MC68HC05J1AVDWR2
廠商: MOTOROLA 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: SOIC-20
文件頁數: 37/126頁
文件大小: 1118K
代理商: MC68HC05J1AVDWR2
Technical Data
MC68HC05J1A — Rev. 1.0
18
General Description
MOTOROLA
General Description
1.5 MCU Structure
Figure 1-1 shows the structure of the MC68HC05J1A MCU.
Figure 1-1. MC68HC05J1A Block Diagram
D
AT
A
DIRECTION
REGISTER
B
POR
T
B
PB5
PB4
PB3
PB2
PB1
PB0
0 00
00
1
CPU CONTROL
ARITHMETIC/LOGIC
UNIT
ACCUMULATOR
INDEX REGISTER
STACK POINTER
0 00
PROGRAM COUNTER
00
M68HC05
MCU
RESET
CONDITION CODE REGISTER
111H I
N C Z
D
AT
A
DIRECTION
REGISTER
A
POR
T
A
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
*
**
* 8-mA sink capability
** External interrupt capability
COP WATCHDOG
AND
INTERNAL
OSCILLATOR
DIVIDE
BY TWO
MULTIFUNCTION
TIMER
ILLEGAL ADDRESS
DETECT
POWER
CPU
CLOCK
INTERNAL CLOCK
IRQ
VDD
VSS
OSC1
OSC2
USER ROM — 1240 BYTES
USER RAM — 64 BYTES
RESET
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