参数资料
型号: BU9799KV-E2
厂商: Rohm Semiconductor
文件页数: 9/18页
文件大小: 0K
描述: IC LCD DVR MULTI 50X4COM 64-VQFP
标准包装: 1
显示器类型: LCD
配置: 点阵
接口: 2 线串口
电流 - 电源: 20µA
电源电压: 2.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFP
供应商设备封装: 64-VQFP
包装: 标准包装
其它名称: BU9799KV-E2DKR
BU9795AKV/FV/GUW,BU9794AKV,BU97950FUV/KS2
<BU9794AKV>
Technical Note
● Block Diagram
VLCD
COM0……COM3
SEG0……SEG49
● Pin Arrangement
LCD voltage generator
common
driver
Segment
driver
SEG38
49
32
SEG21
SEG39
SEG20
LCD
BIAS
SELECTOR
SEG40
SEG41
SEG42
SEG19
SEG18
SEG17
common
counter
blink timing
generator
DDRAM
SEG43
SEG44
SEG16
SEG15
SEG45
SEG46
SEG14
SEG13
INHb
VSS
SEG47
SEG48
SEG49
SEG12
SEG11
SEG10
Command
Command
COM0
SEG9
OSCIN
register
Data Decoder
COM1
SEG8
OSCILLATOR
Power On Reset
serial inter face
COM2
COM3
64
SEG7
SEG6
17
VDD
VSS
IF FILTER
TEST2
TEST1
CSB
SD
SCL
Fig.10 Block Diagram (BU9794AKV)
● Terminal Description
Fig.11 Pin Arrangement (BU9794AKV)
Terminal
INHb
TEST1
TEST2
Terminal No.
8
9
10
I/O
I
I
I
Function
Input terminal for turn off display
H: turn on display, L: turn off display
Test input (ROHM use only)
Must be connect to VSS
Test input (ROHM use only)
Must be connect to VSS
External clock input
OSCIN
4
I
Ex clock and Int clock can be changed by command.
Must be connect to VSS when use internal oscillation circuit.
SD
SCL
CSB
VSS
VDD
VLCD
SEG0-49
COM0-3
7
6
5
3
2
1
11-60
61-64
I
I
I
O
O
serial data input
serial data transfer clock
Chip select : “L” active
GND
Power supply
Power supply for LCD driving
SEGMENT output for LCD driving
COMMON output for LCD driving
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
9/15
2011.11 - Rev.B
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