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參數(shù)資料
| 型號： | MSM80C49-XXXRS |
| 廠商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 11 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | 0.600 INCH, 2.54 MM PITCH, PLASTIC, DIP-40 |
| 文件頁數(shù)： | 9/21頁 |
| 文件大?。?/td> | 169K |
| 代理商： | MSM80C49-XXXRS |
16/20
Semiconductor
MSM80C48/49/50, MSM80C35/39/40
Details of IC pin status as a result of executing the FLT instruction are shown in the above table.
(4) FLTT (floating of all output pins)
Instruction code :
Description :
Details of IC pin status as a result of executing the FLTT instruction are shown in above
Table.
Example 1 : Power-down mode accomplished by stopping oscillation.
m
Can be set by execution of HLTS [82H] instruction.
Example 2 : Power-down mode accomplished by stopping the clock supply to the CPU
control circuit.
m
Can be set by execution of HALT [01H] instruction.
Example 3 : Power-down mode by floating of P10-7, P20-7 and BP0-7, and subsequent
stopping of CPU oscillation.
m
Can be set by first executing the FLT [A2H] instruction, followed by the
HLTS [82H] instruction.
Example 4 : Power-down mode by floating P10-7, P20-7 and BP0-7, and then stopping the
clock supply to the CPU control circuit.
m
Can be set by first executing the FLT [A2H] instruction, and then the HALT
[01H] instruction.
Example 5 : Power-down mode by floating all output pins, followed by stopping oscillation.
m
Can be set by first executing the FLTT [C2H] instruction followed by
execution of the HLTS [82H] instruction.
Example 6 : Power-down mode by floating all output pins, followed by stopping of the
clock supply to the CPU control circuit.
m
Can be set by first executing the FLTT [C2H] instruction, followed by
execution of the HALT [01H] instruction. Connect the pull-up resistor or
pull-down resistor to port pin and fix the output port pin level to either 1or
0 when output port is set to floating.
11000010
ALE
P2
XTAL
Internal ROM mode
Floating
Operation
External ROM mode
Operation
P20-3 operation
Operation
PSEN
Floating
Operation
PROG
Floating
WR
Floating
PD
Floating
T0 OUT
Floating
P1
Floating
BP
Floating
Operation
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相關(guān)代理商/技術(shù)參數(shù) |
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