TLC5970 Datasheet, PDF (24/48 Pages) Texas Instruments – 3-Channel, 12-Bit, PWM LED Driver with Buck DC/DC Converter and Differential Signal Interface

TLC5970
SBVS140 – MARCH 2010
www.ti.com
SDTA
SDTB
SCKA
SCKB
Generated Shift Data
(Internal)
Generated Shift Data
(Internal)
D39A D38A D37A D36A D35A
1
2
3
4
5
D6A D5A D4A D3A D2A D1A D0A
34 35 36 37 38 39 40
Shift Register Bit 0
(Internal)
D0
RD0 D39A D38A D37A D36A D35A
Shift Register Bit 1
(Internal) ^D1
RD1 RD0 D39A D38A D37A D36A
Shift Register Bit 2
(Internal)
D2 RD2 RD1 RD0 D39A D38A D37A
RDn are the SID or
EEPROM read data.
Shift Register Bit 38
(Internal)
D38
D37 D36 RD35 RD34 RD33
Shift Register Bit 39
(Internal)
D39
D38 D37 D36 RD35 RD34
D6A D5A D4A D3A D2A D1A D0A
D7A D6A D5A D4A D3A D2A D1A
D8A D7A D6A D5A D4A D3A D2A
RD4 RD3 RD2 RD1 RD0 D39A D38A
RD5 RD4 RD3 RD2 RD1 RD0 D39A
SDTY
SDTZ
SCKY
SCKZ
Latch Pulse
(Internal)
Addressed Latch Bit 0
(Internal)
Addressed Latch Bit 1
(Internal)
Addressed Latch Bit 2
(Internal)
D39+ D38+ D37+ D36+ D35+
D39- D38- D37- D36- D35-
D0
D1
D2
RD5+ RD4+ RD3+ RD2+ RD1+ RD0+ D39A+
RD5- RD4- RD3- RD2- RD1- RD0- D39A-
Addressed Latch Bit 34
(Internal)
D34
Addressed Latch Bit 35
(Internal)
D35
Figure 20. Serial Data Input/Output Timing Diagram 2 (SID/EEPROM Data Read)
24
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