BU9798GUW-E2 Rohm Semiconductor, BU9798GUW-E2 Datasheet - Page 15

• 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

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<BU9798GUW>
VLCD
INHb
●Block diagrams
CLKIN
VDD
●Terminal description
VSS
SEG15 ~ 45
SEG46 ~ 48
SEG0 ~ 14
PWMOUT
COM0 ~ 3
Terminal
CLKIN
VSS1
VLCD
VSS2
INHb
CSB
VDD
SCL
SD
Ref Voltage
Circuit
LCD voltage
VSS
OSCILLATOR
Generator
Fig.11 Block Diagram (BU9798GUW)
Vreg
SELECTOR
Power On Reset
I/O
O
O
O
O
O
I
I
I
-
I
-
-
I
-
BIAS
LCD
VSS2
common
counter
OPEN / VSS
COM0……COM3 SEG0 ……………………………… SEG48
Unused
OPEN
OPEN
OPEN
OPEN
OPEN
GND
common
case
VDD
VDD
VSS
VSS
blink timing
driver
CSB
generator
-
-
-
Command register
serial inter face
Data Decoder
IF FILTER
SD
Segment
driver
GPO data latch
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
PWM output for LED2 group
COMMON output for LCD
SEGMENT output for LCD
SEGMENT output for LCD/GPO
SEGMENT output for LCD/LED driver
GND (for SEG46-48 / LED driver)
DDRAM
SCL
driver/GPO
Segment
15/23
GPO/LED
Controller
driver/LED
Segment
Controller
PWMOUT
Output
GPO terminal : output VSS level
LED drive terminal : output Hi-Z
Generator
PWM
●Pin arrangement
H
G
E
D VLCD VDD INHB
C VSS1 SDA
B
A
F
Fig.12 Pin Arrangement (BU9798GUW)
COM
SEG
SEG
SEG
(NC)
CSB
1
4
2
0
2
Function
COM
PWM
SEG
SEG
SEG
OUT
CLK
IN
2
5
3
1
0
VSS2
COM
SEG
SEG
SEG
SCL
SEG
48
3
9
7
6
1
COM
SEG
SEG
SEG
SEG
SEG
SEG
SEG
11
10
47
45
44
46
4
8
3
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
14
12
13
15
31
42
40
43
5
Technical Note
2010.04 - Rev.A
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
16
17
22
26
29
38
39
41
6
SEG
SEG
SEG
SEG
SEG
SEG
SEG
G19
SE
18
23
24
28
33
35
37
7
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
20
21
25
27
30
32
34
36
8