BU9798GUW-E2 Rohm Semiconductor, BU9798GUW-E2 Datasheet - Page 13

• 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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<BU97931FV>
VLCD
●Block diagrams
●Terminal description
VDD
CLKIN
VSS
SEG23 ~ 27
SEG0 ~ 22
COM0 ~ 3
Terminal
CLKIN
VLCD
VDD
CSB
SCL
VSS
LED
SD
VSS
OSCILLATOR
LCD voltage
Generator
Fig.7 Block Diagram (BU97931FV)
Terminal
number
P ower On Reset
SELECTOR
32-35
36-40
19-23
1-18
BIAS
LCD
26
27
28
29
30
25
31
24
common
counter
I/O
COM0……COM3 SEG0…..22, SEG23…27
O
O
O
O
I
-
-
-
I
I
I
common
bli nk timing
driver
generator
CSB
Command register
serial inter face
Data Decoder
IF FILTER
unused case
OPEN / VSS
SD
Segment
OPEN
OPEN
OPEN
OPEN
GPO data latch
driver
VDD
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
COMMON output for LCD
SEGMENT output for LCD
SEGMENT output for LCD/GPO
LED driver output
Driver
Generator
LED
13/23
PWM
LED
●Pin arrangement
40
1
Fig.8 Pin Arrangement (BU97931FV)
Function
Technical Note
2010.04 - Rev.A
21
20