BU91600FV-M Datasheet, PDF (34/67 Pages) Rohm – Low Duty LCD Segment Driver

BU91600xxx Series MAX 148 Segments (37SEG x 4COM)
Serial Data Output
1. When SCL is stopped at the low level^(Note1)
SCE
SCL
Datasheet
SDI
SDO
11 000010
B0
B1
B2
B3
A0
A1
A2
A3
X KD1 KD2
KD17 KD18 KD19 KD20 PA
Output Data
(Note1)
1. X=Don’t care
2. B0 to B3, A0 to A3: Serial Interface address
Figure 17. Serial Data Output Format
2. When SCL is stopped at the high level^(Note2)
SCE
SCL
SDI
SDO
110 00 01
0
B0
B1
B2
B3
A0
A1
A2
A3
KD1 KD2 KD3
KD18 KD19 KD20 PA
X
Output Data
Figure 18. Serial Data Output Format
(Note2)
1. X=Don’t care
2. B0 to B3, A0 to A3: Serial Interface address
3. Serial Interface address: 43H
4. KD1 to KD20: Key data
5. PA: Power-saving acknowledge data
6. If a key data read operation is executed when SDO is high, the read key data (KD1 to KD20) and power-saving acknowledge data (PA) will be invalid.
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TSZ02201-0P4P0D301300-1-2
16.Feb.2016 Rev.001