BU9798GUW-E2 Rohm Semiconductor, BU9798GUW-E2 Datasheet - Page 14

• 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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<BU9798KV>
VLCD
●Block diagrams
INHb
●Terminal description
CLKIN
VDD
VSS
SEG15 ~ 45
SEG46 ~ 48
SEG0 ~ 14
PWMOUT
COM0 ~ 3
Terminal
TEST1
CLKIN
VLCD
VSS1
VSS2
INHb
VDD
CSB
SCL
SD
Ref Voltage
Circuit
LCD voltage
VSS
OSCILLATOR
Generator
Fig.9 Block Diagram (BU9798KV)
TEST1
Vreg
Terminal
number
13-27
28-58
59-61
SELECTOR
Power On Reset
9-12
64
63
62
1
2
3
4
5
6
8
7
BIAS
LCD
VSS2
common
counter
I/O
O
O
O
O
O
COM0……COM3 SEG0 ……………………………… SEG48
I
I
I
-
I
I
-
-
I
-
common
blink timing
driver
generator
CSB
Command register
serial inter face
unused case
OPEN / VSS
Data Decoder
IF FILTER
SD
OPEN
OPEN
OPEN
OPEN
OPEN
GND
VDD
VDD
VSS
VSS
Segment
driver
GPO data latch
-
-
-
-
DDRAM
SCL
driver/GPO
Segment
14/23
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
TEST terminal (Please connect VSS terminal)
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)
GPO/LED
Controller
driver/LED
Segment
PWMOUT
Controller
Output
Generator
PWM
GPO terminal : output VSS level
LED drive terminal : output Hi-Z
●Pin arrangement
PWMOUT
SEG36
SEG37
SEG38
SEG39
SEG40
SEG41
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
CLKIN
VSS2
Fig.10 Pin Arrangement (BU9798KV)
49
64
Function
Technical Note
2010.04 - Rev.A
32
17
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4