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BD6088GUL
Technical Note
● I/O
When the RESETB pin is Low, the input buffers (SDA and SCL) are disabling for the Low consumption power.
When RESETB=L, output is fixed at “H.”
SCL
Level shifter
(SDA)
EN
Logic
RESETB
Special care should be taken because a current path may be formed via a terminal protection diode, depending on an I/O
power-on sequence or an input level.
● About the pin management of the function that isn't used and test pins
Setting it as follows is recommended with the test pin and the pin which isn't used.
Set up pin referring to the “Equivalent circuit diagram” so that there may not be a problem under the actual use.
T1 Short to GND because pin for test GND
T2, T4
T3
Non-used LED Pin
WPWMIN, OUTCNT
OUT1 ～ 4
KBLT
Short to GND because pin for test input
OPEN because pin for test output
Short to GND (Must)
But, the setup of a register concerned with LED that isn’t used is prohibited.
Short to ground
(A Pull-Down resistance built-in terminal is contained, too.)
It opens for an output
Although Pull-Down is built in, it opens for an output.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
45/51
2011.04 - Rev.A
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