BU97540KV-M Datasheet, PDF (2/70 Pages) Rohm – Multi-function Segment Drivers

BU97540KV-M
Typical Application Circuit
+5V
*1
From Control
To Control
+5V
Key Matrix
KS1 / S53
KS6 / S58
VDD
SCE
SCL
SDI
SDO
S66/TESTIN
KI1 / S59
KI5 / S63
COM1/S71
COM2/S70
COM3/S69
COM4/S68
COM5/S67
S1/P1/G1
S9/P9/G9
S10
S52
S64
S65
S72
OSC_IN/S73
P1/G1
P9/G9
(General Purpose/PWM Ports)
(For control of backlight)
LCD Panel
(Up to 335 Segments)
1Chip Mode(Master)
Key Matrix
P1/G1
P9/G9
(General Purpose/PWM Ports)
(For control of backlight)
P1/G1
P9/G9
(General Purpose/PWM Ports)
(For control of backlight)
+5V
*1
From Control
To Control
+5V
KS1 / S53
KS6 / S58
VDD
KI1 / S59
KI5 / S63
MS
MASTER
SCE
SCL
SDI
SDO
S66/TESTIN
COM1/S71
COM2/S70
COM3/S69
COM4/S68
COM5/S67
S1/P1/G1
S9/P9/G9
S10
S52
SYNCIO/S64
CLKIO/S65
S72
OSC_IN/S73
+5V
(Note 2) ^*1
+5V
VDD
SCE
SCL
SDI
SDO
MS
SLAVE
COM1/S71
COM2/S70
COM3/S69
COM4/S68
COM5/S67
S1/P1/G1
S9/P9/G9
S10
S52
SYNCIO/S64
CLKIO/S65
S66
S72
OSC_IN/S73
KS1 / S53
KS6 / S58
KI1 / S59
KI5 / S63
LCD Panel
(Up to 680 Segments)
2 Chip Mode(Master with Slave)
(Note2) Insert capacitors
between VDD and VSS C≥0.1uF
Figure 1. Typical Application Circuit
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TSZ02201-0P4P0D300970-1-2
29.Jun.2015 Rev.002