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TM1628A Datasheet(PDF) 5 Page - Shenzhen Tianwei Electronics Co., Ltd

Part # TM1628A
Description  LED drive control dedicated circuit
PDF  18 Pages
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Manufacturer  TITANMEC [Shenzhen Tianwei Electronics Co., Ltd]
Direct Link  http://www.titanmec.com/
Logo TITANMEC - Shenzhen Tianwei Electronics Co., Ltd

TM1628A Datasheet(HTML) 5 Page - Shenzhen Tianwei Electronics Co., Ltd

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LED 驱动控制专用电路
TM1628A
©Titan Micro Electronics
www.titanmec.com
- 5 -
V1.1
六、 显示寄存器地址:
该寄存器存储通过串行接口接收从外部器件传送到TM1628A的数据,最多有效地址从00H-0DH共14字节单元,
分别与芯片SEG和GRID管脚对应,具体分配如图(2):
写LED显示数据的时候,按照显示地址从低位到高位,数据字节从低位到高位操作。
X
X
X
xxHL(低四位)
xxHU(高四位)
xxHL(低四位)
xxHU(高位)
B0
B1
B2
B3
B4
B5
B6
B7
B0
B1
B2
B3
B4
B5
B6
B7
C0HL
C0HU
C1HL
C1HU
GRID1
C2HL
C2HU
C3HL
C3HU
GRID2
C4HL
C4HU
C5HL
C5HU
GRID3
C6HL
C6HU
C7HL
C7HU
GRID4
C8HL
C8HU
C9HL
C9HU
GRID5
CAHL
CAHU
CBHL
CBHU
GRID6
CCHL
CCHU
CDHL
CDHU
GRID7
图(2)
▲注意:芯片显示寄存器在上电瞬间其内部保存的值可能是随机不确定的,此时客户直接发送开屏命令,
将有可能出现显示乱码。所以我司建议客户对显示寄存器进行一次上电清零操作,即上电后向14位显存地址
(C0H-CDH)中全部写入数据0x00。
七、 显示:
1、驱动共阴数码管:
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
GRID1
a
b
f
c
g
d
e
a
b
c
d
e
f
g
dp
dp
com
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
GRID1
图(7)
图7给出共阴极数码管的连接示意图,如果让该数码管显示“0”,只需要向00H(GRID1)地址中从低位开
始写入0x3F数据即可,此时00H 对应每一个SEG1-SEG8的数据如下表格。
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
0
0
1
1
1
1
1
1
GRID1(C0H)
B7
B6
B5
B4
B3
B2
B1
B0


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