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LED171596ARSLR 데이터시트(PDF) 24 Page - Texas Instruments

부품명 LED171596ARSLR
상세설명  96-LED Matrix Driver for RGB and White LEDs
PDF  153 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LED171596ARSLR 데이터시트(HTML) 24 Page - Texas Instruments

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0
1
0
1
ADDR
Pin [1]
ADDR
Pin [1]
Reg Addr MSB
R/W
Upper 4 bits are fixed
Lower 2 bits are selected with
ADDR pin
One bit used for register
address MSB (bit 9)
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
A8
A7
A6
A5
A4
A3
A2
A1
A0
R
9-bit ADDRESS
READ bit
SS
SCK
MOSI
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MISO
10-bit DATA1
10-bit DATA2
End of Tri-State
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
A8
A7
A6
A5
A4
A3
A2
A1
A0
W
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
9-bit ADDRESS
10-bit DATA1
WRITE bit
SS
SCK
MOSI
10-bit DATA2
24
LED171596A
SNVSAY2 – OCTOBER 2017
www.ti.com
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
Programming (continued)
Figure 20. SPI Write
Figure 21. SPI Read
7.5.1.2 I2C-Compatible Interface
Up to three LED171596A slave devices may share the same I2C bus. The first 8 bits of the I2C transaction are
divided into bits for the slave ID, one bit for the register address MSB, and the read/write bit. The MISO_ADDR
pin is used to select the unique I2C slave address for each device. Every device also uses a single common I2C
address so that host can write data to all devices at the same time. This option can be used to write LATCH
command to all devices simultaneously.
Figure 22. I2C Slave Address Diagram
The LED171596A uses a 6-bit slave ID. The 4 upper bits of the slave ID are fixed to 0101 and the 2 lower bits
are defined by the status of the MISO_ADDR pin of each device. The MISO_ADDR pin can be tied to ground,
tied to VDDIO, or left unconnected to select between three unique device slave addresses.
Table 5. Slave Addresses
MISO_ADDR STATE
LOWER SLAVE ID BITS
BASE 8-BIT DEVICE
ADDRESS
GND
00
50h
VDDIO
01
54h
OPEN
10
58h



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