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PDF BU97500KV Data sheet ( Hoja de datos )
| Número de pieza | BU97500KV | |
| Descripción | Multifunction LCD Segment Driver | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
Multifunction LCD Segment Driver
BU97500KV MAX 204 segments (SEG51×COM4)
●Features
Integrated RAM for display data (DDRAM):
51 x 4bit (Max 204 Segment)
LCD drive output:
4 Common output, Max 51Segment output
Segment/GPO (Max 4port) output mode selectable
Support standby mode
Integrated Power-on Reset circuit
Integrated Oscillator circuit
No external component
Low power consumption design
Independent power supply for LCD driving
●Applications
Telephone
FAX
Portable equipment (POS, ECR, PDA etc.)
DSC
DVC
Car audio
Home electrical appliance
Meter equipment
etc.
●Key Specifications
■ Supply Voltage Range:
+2.7V to +5.5V
■ LCD drive power supply Range: +4.5V to +5.5V
■ Operating Temperature Range: -40°C to +85°C
■ Max Segments:
204 Segments
■ Display Duty:
1/3, 1/4 selectable
■ Bias:
1/2, 1/3 selectable
■ Interface:
3wire serial interface
●Package
W (Typ.) x D (Typ.) x H (Max.)
VQFP64
12.00mm x 12.00mm x 1.60mm
●Typical Application Circuit
+5V
+5.5V
*1
*1
VDD
VLCD
From
Control
RESB
CSB
SCL
SD
OPEN DO
OSC
COM1
COM2
COM3
P1/S1
P2/S2
(P1)
(P2) (General purpose ports)
(For use control of backlight)
(P4)
P4/S4
S5
S40
COM4/S41
S42
S52
LCD Panel
(Up to 204
Segments)
*1 Insert capacitors between VDD and VSS
C≥0.1uF
Figure 1. Typical application circuit
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product is not designed for protection against radioactive rays.
1/23
TSZ02201-0A0A2D300050-1-2
8.Jan.2013 Rev.002
1 page  
BU97500KV MAX 204 segments (SEG51×COM4)
●I/O equivalent circuit
VDD
VDD
CSB / SD / SCL
VSS
VSS
Datasheet
VDD
OSC
VSS
VLCD
VSS
VLCD
SEG / COM
VSS
Figure 6. I/O equivalent circuit
●Example of recommended circuit
+5V
+5.5V
*1
*1
VDD
VLCD
From
Control
RESB
CSB
SCL
SD
OPEN DO
OSC
COM1
COM2
COM3
P1/S1
P2/S2
(P1)
(P2) (General purpose ports)
(For use control of backlight)
(P4)
P4/S4
S5
S40
COM4/S41
S42
S52
LCD Panel
(Up to 204
Segments)
*1 Insert capacitors between VDD and VSS
C≥0.1uF
Figure 7. Example of recommended circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
5/23
TSZ02201-0A0A2D300050-1-2
8.Jan.2013 Rev.002
5 Page 
BU97500KV MAX 204 segments (SEG51×COM4)
●Detailed command description
○Sleep Control (SLP CTRL)
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
10
0 1 0 P2 *
*
(* : Don’t care)
P2: SLEEP CONTROL DATA
Normal Mode/Sleep Mode setting
Control bit
P2
Mode Internal Oscillator
0
Normal
enabled
1
Sleep
disabled
Segment outputs
Common outputs
L
L
Reset
condition
○
○Segment Control (SEG CTRL)
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
1 0 1 1 P3 P2 P1 *
(* : Don’t care)
P3 to P0: Segment Output / General purpose output mode selection
Control bits
P3 P2 P1
Status of the pins
Reset
S1/P1 S2/P2 S3/P3 S4/P4 condition
0 0 0 S1 S2 S3 S4
○
0 0 1 P1 S2 S3 S4
0 1 0 P1 P2 S3 S4
0 1 1 P1 P2 P3 S4
1 0 0 P1 P2 P3 P4
NOTE) Sn(n=1 to 4)
Pn(n=1 to 4)
: assigned as a Segment Output pin
: assigned as a General Purpose Output pin
Relationship of bit assignment between general purpose outputs pin and bit in DDRAM
Output Pin
Corresponding bit in DDRAM
1/3 Duty
1/4 Duty
S1/P1
D1
D1
S2/P2
D4
D5
S3/P3
D7
D9
S4/P4
D10
D13
In case of 1/4 Duty mode and S4/P4 is configured as a general purpose output pins,
S4/P4 is set to HIGH (VLCD level) if D13 is set to “1” in DDRAM.
S4/P4 is cleared to LOW (VSS level) if D13 is set to “0” in DDRAM.
Datasheet
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
11/23
TSZ02201-0A0A2D300050-1-2
8.Jan.2013 Rev.002
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet BU97500KV.PDF ] | |
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