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Rohm Semiconductor Electronic Components Datasheet

BU97500KV Datasheet

Multifunction LCD Segment Driver

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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
C0.1uF
Figure 1. Typical application circuit
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed for protection against radioactive rays.
1/23
TSZ02201-0A0A2D300050-1-2
8.Jan.2013 Rev.002


Rohm Semiconductor Electronic Components Datasheet

BU97500KV Datasheet

Multifunction LCD Segment Driver

No Preview Available !

BU97500KV MAX 204 segments (SEG51×COM4)
Block Diagram / Pin Configuration / Pin Description
Datasheet
VLCD
LCD VOLTAGE
GENERATOR
+-
+-
COMMON
DRIVER
OSC
DO
SD
SCL
CSB
VDD
CLOCK
GENERATOR
3-SPI
INTERFACE
P.O.R
RESET
FILTER
SEGMENT DRIVER & LATCH
SHIFT REGISTER
CONTROL
REGISTER
49
S46
S47
S48
S49
S50
S51
S52
OSC
RESB
TEST
CSB
SCL
SD
VLCD
VDD
VSS
64
32
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
17
Figure 2. Block Diagram
Figure 3. Pin Configuration (TOP VIEW)
Terminal
CSB
Terminal
No.
59
I/O
I
Table 1 Pin Description
Unused case
VDD
Chip select : “L” active
Function
SCL
60 I
VSS
Serial data transfer clock
SD
61 I
VSS
Input serial data
VDD
OSC
VSS
63 -
- Power Supply for the logic
56
I/O
OPEN/VSS
External clock input terminal
Supported Hi-Z input if the internal clock mode.
64 -
- GND
VLCD
62 -
- Power Supply for the LCD driver
COM1 to 3 41 to 43 O
COM4/S41
44 O
S1/P1 to S4/P4 1 to 4
S5 to S40
S42 to S52
5 to 40
45 to 55
O
O
RESB
57 I
DO 58 O
OPEN
OPEN
OPEN
OPEN
VDD
OPEN
COMMON output for LCD driving
COMMON / SEGMENT output for LCD driving
Assigned as SEGMENT output in 1/3Duty mode.
SEGMENT output for LCD driving / General Purpose output
SEGMENT output for LCD driving
Reset Input:
RESB=“L” : Display is disabled
RESB=“H” : Display is controllable
NOTE) 3-SPI is NOT available if RESET is “L”.
Output for manufacturing test:
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/23
TSZ02201-0A0A2D300050-1-2
8.Jan.2013 Rev.002


Part Number BU97500KV
Description Multifunction LCD Segment Driver
Maker ROHM
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BU97500KV Datasheet PDF






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