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參數(shù)資料
型號(hào): LC74950BG
廠(chǎng)商: SANYO SEMICONDUCTOR CO LTD
元件分類(lèi): 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA96
封裝: 6 X 6 MM, FBGA-96
文件頁(yè)數(shù): 30/37頁(yè)
文件大?。?/td> 350K
代理商: LC74950BG
LC74950BG
No.A1647-36/37
Other (usage precautions)
1. Precaution when turning on the power
As shown in the figure below, start the transfer of the I
2C bus command after factoring in the power-on time (A),
PDWN operation time (B), RESET operation time (C) and command transfer start time (D).
A: Power-on time
This is the time taken from power-on to when the *VDD15 operating supply voltage has reached the lowest level
(1.35V) and operation has stabilized. The power-on-time depends on the characteristics of the power ICs and other
components, so it must be checked separately. With regard to *VDD33 and *VDD15, *VDD15 must be turned on
after *VDD33 has turned on.
B: PDWN operation time
This is the time during which the "L" level must be applied continuously for a period of 10ms or more to the PDWN
pin after the lowest level (1.35V) of the *VDD15 operating supply voltage has been reached and operation has
stabilized.
C: RESET operation time
This is the time during which the "L" level must be applied continuously for a period of 10ms or more to the RESET
pin after the PDWN is released ("H" level).
D: Command transfer start time
At least an interval of 10ms is required from the time the RESET pin is released ("H" level) to the start of command
transfer.
1.35V
0.2VDD
2V
0.75VDD
3.0V
DVDD33
AVDD33
DVDD15
AVDD15
PDWN
Command
0.2VDD
2V
RESET
A
B
C
D
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