BU9798GUW-E2 Rohm Semiconductor, BU9798GUW-E2 Datasheet - Page 12

• Manufacturer Part Number: BU9798GUW-E2
• Description: IC LCD DVR MULTI 49X4COM 63-VBGA
• Manufacturer: Rohm Semiconductor

Specifications of BU9798GUW-E2

• Display Type: LCD
• Configuration: Dot Matrix
• Interface: 3-Wire SPI Serial
• Current - Supply: 30µA
• Voltage - Supply: 1.8 V ~ 3.6 V
• Operating Temperature: -30°C ~ 75°C
• Mounting Type: Surface Mount
• Package / Case: 63-VFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Other names: BU9798GUW-E2TR

●Block diagrams / Pin arrangement / Terminal description
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BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
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<BU97930MUV>
CLKIN
●Block diagrams
●Terminal description
VLCD
INHb
VDD
VSS
SEG23 ~ 26
SEG0 ~ 22
COM0 ~ 3
EXT-PAD
Terminal
CLKIN
OSC block
VLCD
INHb
VDD
CR Oscillator
(typ=40.96kHz)
CSB
SCL
VSS
LED
SD
VSS
Fig.5 Block Diagram (BU97930MUV)
LCD voltage
Generator
clock
divider
(Div.2)
Terminal
number
12-34
35-38
SELECTOR
8-11
40
39
BIAS
LCD
1
2
3
4
6
7
5
-
Power On
Reset
common
counter
I/O
COM0……COM3
O
O
O
O
-
-
-
-
I
I
I
I
I
common
driver
blink timing
generator
CSB
Command register
serial inter face
Data Decoder
unused case
OPEN / VSS
IF FILTER
SD
SEG0 …...22、SEG23...26
OPEN
OPEN
OPEN
OPEN
Segment
VDD
VDD
driver
GPO data latch
VSS
VSS
VSS
DDRAM
-
-
-
SCL
driver/GPO
Segment
Controller
GPO
Chip select: "L" active
Serial data transfer clock
Input serial data
Power supply for LOGIC
External clock input terminal (for display/PWM using selectable)
Support Hi-Z input mode at internal clock mode
GND
Power supply for LCD
Display turning on/off select terminal
H: turning on display, L: turning off display
INHb = “L”: All SEG/COM terminal : output VSS level
COMMON output for LCD
SEGMENT output for LCD
SEGMENT output for LCD/GPO
LED driver output
substrate
Generator
12/23
driver
LED
LED
PWM
GPO terminal : output VSS level
LED drive terminal : output Hi-Z
●Pin arrangement
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
VSS
LED
Fig.6 Pin Arrangement (BU97930MUV)
40
39
38
37
36
35
34
33
32
31
Function
EXT-PAD
Technical Note
2010.04 - Rev.A
11
12
13
14
15
16
17
18
19
20
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8