參數(shù)資料
型號(hào): MC68HC05P4ACDW
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, PDSO28
封裝: PLASTIC, SOIC-28
文件頁(yè)數(shù): 97/102頁(yè)
文件大小: 1085K
代理商: MC68HC05P4ACDW
Electrical Specifications
Technical Data
MC68HC05P4A — Rev. 7.0
94
Electrical Specifications
MOTOROLA
Figure 12-4. Power-On Reset Timing
Figure 12-5. External Reset Timing
SC1 PIN
VDD
4064
tcyc
INTERNAL
CLOCK
INTERNAL
ADDRESS
BUS
INTERNAL
DATA
BUS
1FFF
1FFE
NEW
PCL
NEW
PCH
1FFE
VDD THRESHOLD (TYPICALLY 1-2 V)
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 VDD rises through a threshold (typically 1–2 V).
NTERNAL
CLOCK
NTERNAL
DDRESS
BUS
RESET
tRL
NEW PC
DUMMY
NTERNAL
DATA
BUS
NEW PC
OP
CODE
1FFF
NEW
PCL
1FFE
NEW
PCH
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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