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TLC5942PWPR Datasheet(PDF) 8 Page - Texas Instruments |
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TLC5942PWPR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 33 page www.ti.com TLC5942 SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007 TERMINAL FUNCTIONS TERMINAL NAME PWP RHB I/O DESCRIPTION GSSIN 5 2 I Serial data input for grayscale. Serial data shift clock for grayscale and reference clock for Grayscale PWM control. Data present on the GSSIN pin are shifted into the Grayscale Shift Register with each rising edge of the GSSCLK 4 1 I GSSCLK pin. Data are shifted into the LSB of the register with each rising edge. The MSB of the register is shifted to the GSSOUT pin with each rising edge. If BLANK is low, then each rising edge of GSSCLK increments the grayscale counter for PWM control. Data in the shift register are moved to the grayscale data latch with a low-to-high transition of this XGSLAT 6 3 I pin. Serial data output for Grayscale/Status information data. This signal is connected to MSB of GSSOUT 24 23 O Grayscale Shift Register. DCSIN 3 32 I Serial data input for Dot Correction. Serial data shift clock for dot correction. Data present on the DCSIN pin are shifted into the dot correction shift register with each rising edge of the DCSCLK pin. Data are shifted into the LSB of DCSCLK 2 31 I the register with each rising edge. The MSB of the register is shifted to the DCSOUT pin with each rising edge. Data in the shift register are moved to the dot correction data latch with a low-to-high transition of XDCLAT 26 25 I this pin. Serial data output for dot correction. This signal is connected to the MSB of the Dot Correction DCSOUT 25 24 O Shift Register. Blank (all constant current outputs off). When BLANK is high, all constant current outputs (OUT0 through OUT15) are forced off, the Grayscale counter is reset to '0', and the Grayscale PWM BLANK 23 22 I timing controller is initialized. When BLANK is low, all constant current outputs are controlled by the Grayscale PWM timing controller. Constant current value setting. OUT0 through OUT15 sink constant current is set to desired IREF 27 26 I/O value by connecting an external resistor between IREF and GND. OUT0 14 11 O Constant current output OUT1 13 10 O Constant current output OUT2 12 9 O Constant current output OUT3 11 8 O Constant current output OUT4 10 7 O Constant current output OUT5 9 6 O Constant current output OUT6 8 5 O Constant current output OUT7 7 4 O Constant current output OUT8 15 14 O Constant current output OUT9 16 15 O Constant current output OUT10 17 16 O Constant current output OUT11 18 17 O Constant current output OUT12 19 18 O Constant current output OUT13 20 19 O Constant current output OUT14 21 20 O Constant current output OUT15 22 21 O Constant current output VCC 28 27 — Power-supply voltage GND 1 30 — Power ground 12, 13, NC — — No internal connection 28, 29 8 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLC5942 |
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