參數(shù)資料
型號: MC68HC05P4A
廠商: Motorola, Inc.
英文描述: 28-pin MCU (microcontroller unit) based on the MC68HC05P4(28引腳、基于MC68HC05P4升級的8位微控制器單元)
中文描述: 28引腳單片機(微控制器)的基礎上MC68HC05P4(28引腳,基于MC68HC05P4升級的8位微控制器單元)
文件頁數(shù): 94/102頁
文件大小: 930K
代理商: MC68HC05P4A
Advance Information
MC68HC05P4A — Rev. 6.0
94
Electrical Specifications
MOTOROLA
Electrical Specifications
Figure 12-4. Power-On Reset Timing
Figure 12-5. External Reset Timing
SC1PIN
VDD
4064
t
cyc
INTERNAL
CLOCK
INTERNAL
ADDRESS
BUS
INTERNAL
DATA
BUS
1FFF
1FFE
1FFE
1FFE
1FFE
NEW
PCL
NEW
PCH
1FFE
1FFE
VDDTHRESHOLD (TYPICALLY 1-2V)
t
VDDR
Notes:
1. Internal clock, internal address bus, and internal data bus signals are not available externally.
2. An internal POR reset is triggered as V
DD
rises through a threshold (typically 1–2 V).
NTERNAL
CLOCK
NTERNAL
DDRESS
BUS
RESET
t
RL
NEW PC
DUMMY
NTERNAL
DATA
BUS
NEW PC
OP
CODE
1FFF
NEW
PCL
1FFE
NEW
PCH
1FFE
1FFE
1FFE
Notes:
1. Internal clock, internal address bus, and internal data bus signals are not available externally.
2. The next rising edge of the internal processor clock after the rising edge of RESET initiates the reset sequence.
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