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TLC5920DL Datasheet(PDF) 3 Page - Texas Instruments |
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TLC5920DL Datasheet(HTML) 3 Page - Texas Instruments |
3 / 15 page TLC5920 16x8 BIT LED DRIVER/CONTROLLER SLAS264A – MARCH 2000 REVISED SEPTEMBER 2002 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION BLANK 39 I Blank(light off). By turning all the output for the common driver off, the LED is turned off. When BLANK is high, the LED is turned off. COM0 – COM7 4, 3, 2, 1, 47, 46, 45, 44 O LED common driver output CSEL0 – 2 38, 36, 35 I Common driver select. One terminal out of COM0 through COM7 is selected. 2 1 0 Common Driver LLL 0 LL H 1 LHL 2 LH H 3 HL L 4 HLH 5 HH L 6 HHH 7 DSEL 33 I Display select. When DSEL is high, the LED is turned off. Note that, when BLANK is high, the LED is turned off with no regard to the DSEL input. DSEL 30 O Display select output. The inverted data of DSEL is clocked out. GNDANA 21 Analog ground GNDLED 5, 43, 48 LED driver ground GNDLOG 37 Logic ground IREF 17 I Constant current control setting. The LED current is set to the desired value by connecting an external resistor between IREF and GND. LATCH 41 I Latch. When LATCH is high, data on the shift register goes through latch. When LATCH is low, data is latched. SIN 42 I Serial input for display SOUT 32 O Serial output for display SCLK 40 I Synchronous clock input for serial data transfer. The input data of SIN is synchronized to the rising edge of SCLK, and transferred to SOUT. S0 – S15 9, 10, 11, 12, 13, 14, 15, 16, 22, 23, 24, 25, 26, 27, 28, 29 O LED segment driver output VANA 19 Analog power supply voltage VLOG 34 Logic power supply voltage VLED 8, 18, 31 LED driver power supply voltage |
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