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LC786961W View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
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LC786961W
SANYO
SANYO -> Panasonic SANYO
LC786961W Datasheet PDF : 29 Pages
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LC786961W
Power on and Reset control
Attention when power on
The RESB pin must be set to “Low” level to initialize the operating state of internal flash memory.
If the power is on during the RESB pin is “High” level, this LSI may operate incorrectly because the internal flash
memory is not initialized. In this case, this LSI is not initialized even if a low level supplied to RESB pin.
Therefore, the RESB pin must be set to “Low” level when power is first supplied.
You may input the voltage of 3.6V or less to each input pin when the power supply is off. However, it is necessary
to supply a regulated voltage to the power supply pin beforehand when more than 3.6V voltage is input to the 5V
tolerant input pins.
Power ON/Power Down/Reset timing
3.3V Power
VDD1
0V
vBOT
tPWD
3.3V Power
VDD1
RESB
tRESW1
Power on stage
tRESW2
During normal operation
(Oscillation clock is valid)
Parameter
Symbol
min
typ
max
unit
Power down time
tPWD
10
ms
Power down voltage
vBOT
0
0.2
V
Reset time (Power on)
tRESW1
20
ms
Reset time (Normal) (*1)
tRESW2
1
ms
*1: The specification of tRESW2 above is the time defined while steady the X16 clock and having oscillated.
When the X16 clock has been stopped by the command etc. , the specification of tRESW2 could be larger than the
value shown above, because it takes time that the X16 oscillator becomes stable.
No.A2081-14/29
 

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