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參數(shù)資料
| 型號： | TC90A92AFG |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 21/34頁 |
| 文件大小： | 459K |
| 代理商： | TC90A92AFG |
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TC90A92AFG
The condition of power (VDD=3.3V, 2.5V, 1.5V) rising and falling
(1)Power Supply rising
These contents are the important items which influence the reliability guarantee of the IC.
It is necessary to satisfy the following condition.
VDD=3.3V
VDD=2.5V
3.3V (power range : 3.0 `3.6V)
more than 2.3V
more than 0.4V
2.5V (power range : 2.3`2.7V)
It needs to rise less than 40ms from starting to rise the power of 2.5V.
(using power on reset of DRAM )
Terminal 30FRESET
(reset release)
After all powers rising, it is necessary to keep resett ing more
than 0.5ms.
And it must not keep the reset conditions more than one minute.
After reset release, it is necessary to be more than 100ns for
IIC BUS control starting.
IIC-Bus IN
Terminal 32FSCL
Terminal31FSDA
*note1
Such the power terminal are embedded the protective diode.
It must not send a penetration electric current.
Condition:
Power level of 3.3V line Power level of 2.5V line Power level of 1.5V line
When the power level of 1.5V line is more than 0.4V, 3.3V line and 2.5V line must
reach the level of power more than 0.4V.
And when the power level of 2.5V line is more than 0.4V,
3.3V line must reach the
level of power more than 0.4V.
more than 3.0V
more than 1.35V
VDD=1.5V
1.5V (power range : 1.35`1.65V)
*note1
1.5V power
terminal
2.5V power
terminal
3.3V power
terminal
*note1
more than 0.4V
(1) Power rising condition
(2) Power falling condition
It is necessary to fall the power of 1.5V line before 3.3V line and 2.5V line are fallen, and to fall the power of 2.5V
line before 3.3V line is fallen.
It must not send a penetration electric current too.
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