TM1668 – LED drive control circuit dedicated

TM1668 Datasheet PDF learn more.

Part number : TM1668

Functions : This is a kind of semiconductor, LED drive control circuit dedicated.

Pin arrangement :

Package information :

Manufacturer : ETC

Image :

TM1668 Datasheet PDF

The texts in the PDF file :

• • • • • • • •

1 2 3 4 5 6 7 8 9 10 11 12

DIO CLK STB K1 K2 VDD SEG1/KS1 SEG2/KS2 SEG3/KS3 SEG4/KS4 SEG5/KS5 SEG6/KS6

GR1 GR2 GND GR3 GR4 GR5 GR6 GR7 SEG10/KS10 SEG9/KS9 SEG8/KS8 SEG7/KS7

24 23 22 21 20 19 18 17 16 15 14 13

-1-

VCC

10K

DIO

CT

GND

-2-

LED

KS1

KS2

KS3

B6 B7 BIT 1

KS4

KS5
4

KS6

KS7
0

KS8

BYTE1 BYTE5 K KS

KS9

-3-

KS10 K1 K2

-4-

-5-

CLK DIO STB

1 B0

2 B1

3 B2

4 B3

5 B4

6 B5

7 B6

8 B7

CLK DIO STB

1 B0

2 B1

“““ “““

8 B7 B0 B1 B2 B3

Twait

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7

1 1 1 1 1 1 1

GRID1

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7

A DPY a B C f g b D c Ee d F G [LEDgn]

GRID1

-6-

GRID1 GRID2 GRID3 GRID4 GRID5 GRID6 GRID7

1 1 1 1 1 1 1

SEG1

GRID1 GRID2 GRID3 GRID4 GRID5 GRID6 GRID7

A DPY a B f b C g D c Ee d F [LEDgn] G

SEG1

-7-

vcc

1 2
R1 1k R1 1k

1 2 3 4 5 6 7 8 9 10 11 12

DIO GR1 CLK GR2 STB GND K1 GR3 TM1668 K2 GR4 VDD GR5 SEG1/KS1 GR6 SEG2/KS2 GR7 SEG3/KS3 SEG10/KS10 SEG4/KS4 SEG9/KS9 SEG5/KS5 SEG8/KS8 SEG6/KS6 SEG7/KS7

24 23 22 21 20 19 18 17 16 15 14 13

SEG1/KS1

SEG2/KS2 SEG3/KS3 SEGN/KSN

Tdisp=500us

KS1

KS2

KS3

KS4

KS5

KS6

KS7

KS8

KS9

-8-

KS10 K1 K2

SGE1/KS1 SGE2/KS2 1 1 D1 D2

S1 S2

K1 GRID1

SGE1/KS1 1 1 D1 D2

S1 S2

GRID1

GRID2

K1

K2

SGE1/KS1 510 SGE2/KS2 510 1 1 D1 D2

S1 S2

K1 GRID1

SGE1/KS1 SGE2/KS2 1 1 D1 D2

S1 S2

K1 GRID1

-9-

CL K D IO STB Command1 Command2 Command3 D ata1 D ata2 “““` D ata n Command4

CL K D IO STB Command1 Command2 Command3 D ata1 Command4 D ata2 “““` Command5

CL K D IO STB Command1 Data1 D ata2 D ata3 D ata4 D ata5

– 10 –

42H

No
1BTYE 03H

1

40H

MCU

0C0H

No

5BYTE

Yes

14BYTE

No

Yes

11/16 8CH

Yes

– 11 –

11/16

8CH

42H

03H

No 1BTYE 44H MCU

0C0H

1BYTE

5 BYTE

Yes

0C1H

1BYTE Yes
No

……

– 12 –

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8

LED1 DPY a a b c f b g d e e c d f dp g dp LED2 DPY a a b c f b g d e e c d f dp g dp

GRID1

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8

LED3 DPY a a b c f b g [ … ]

TM1668 PDF File



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