TCM8240MD Datasheet, PDF (24/30 Pages) Toshiba Semiconductor – 1.3 Mega pixel sensor chip

TCM8240MD Ver 1.2
When 1.6V power line is higher than 2.5V power line, the current is provided from 1.6V power line to 2.5V
power line via internal protection diode.
When 2.5V power line is open, the current is provided to 2.5V power line from 1.6V power line via internal
protection diode. Then 1V is provided at 2.5V power line and 1.6V is provided at 1.6V power line.
When 2.5V power line is connected to GND, 1.6V power line is shorted to GND at low impedance.
These conditions can not be guaranteed and it need to consideration to design.
Acceptable period for command setting
The following figure shows the command acceptable period. In general the status of the next frame data is
immediately reflected by the command, but in case of the commands dealing with sensor operation such as
exposure time setting, the frame after next is reflected. Register setting is available between top of full mega
pixel image and end of image.
The minimum period happens in case of sub QCIF maximum zooming. The command acceptable period after
VBLK turns high is 36 msec for 15 fps operation and 71.5 msec for 7.5fps.
Maximum case
VBLK
DOUT
(Full mega)
Command acccept
1024 or 960 line
In case of 15fps, 65ms
In case of 7.5fps, 130ms
Minimum case
VBLK
DOUT
(QCIF-Zoom)
Command accept
96 line
In case of 15fps, 36ms
In case of 7.5fps, 71.5ms
04/12/13
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