BU97930MUV_15 Datasheet, PDF (6/32 Pages) Rohm – Multifunction LCD Segment Driver

BU97930MUV MAX 108 segments (SEG27×COM4)
●Example of recommended circuit
1) LED/GPO operation
5.0V 3.3V
VLCD
LED
VDD
BU97930MUV
VLED=5.0V
*Reading resistors value
please detect the value according to
input current value
(current MAX = 20mA)
SEG26(GPO1) to
SEG23(GPO)
Other
device
VSS
CSB SD SCL INHbCLKIN
SEG0 to SEG26
COM0 to SEG3
LCD
＊CLKIN
External CLK input terminal
Input signal from controller connect to VSS or open. If unused
2) SEG output only operation
VLCD
VDD
LED OPEN if unused
5.0V 3.3V
BU97930MUV
VSS
CSB SD SCL INHbCLKIN
SEG0 _to SEG26
COM0 _to COM3
＊CLKIN
External CLK input terminal
Input signal from controller connect to VSS or open. If unused
LCD
Figure 6. Example of Recommended Circuit
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TSZ02201-0A0A2D300060-1-2
10.Apr.2015 Rev.004