参数资料
型号: BU9799KV-E2
厂商: Rohm Semiconductor
文件页数: 7/18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
<BU9795AFV>
Technical Note
● Block Diagram
VDD
COM0……COM3
SEG4……SEG30
● Pin Arrangement
LCD voltage generator
common
driver
Segment
driver
LCD
40
21
BIAS
SELECTOR
common
counter
blink timing
generator
DDRAM
VLCD
INHb
Command
Command
1
20
OSCIN
OSCILLATOR
Power On Reset
register
Data Decoder
serial inter face
IF FILTER
VSS
TEST
CSB
SD
SCL
Fig.6 Block Diagram (BU9795AFV)
● Terminal Description
Fig.7 Pin Arrangement (BU9795AFV)
Terminal
INHb
TEST
Terminal No.
36
35
I/O
I
I
Input terminal for turn off display
H: turn on display L: turn off display
Test input (ROHM use only)
Must be connect to VSS
Function
External clock input
OSCIN
31
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
SEG4-30
COM0-3
34
33
32
30
29
28
1-23,
37-40
24-27
I
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.
7/15
2011.11 - Rev.B
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