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TLC5940RHBG4 Fiches technique(PDF) 7 Page - Texas Instruments |
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TLC5940RHBG4 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 29 page www.ti.com TLC5940 SLVS515A – DECEMBER 2004 – REVISED AUGUST 2005 DEVICE INFORMATION (continued) TERMINAL FUNCTION TERMINAL NO. I/O DESCRIPTION NAME DIP PWP RHB Blank all outputs. When BLANK = H, all OUTn outputs are forced OFF. GS counter is also BLANK 23 2 31 I reset. When BLANK = L, OUTn are controlled by grayscale PWM control. Switch DC data input. When DCPRG = L, DC is connected to EEPROM. When DCPRG = H, DCPRG 19 26 25 I DC is connected to the DC register. DCPRG is also controls EEPROM writing, when VPRG = V(PRG) GND 22 1 30 G Ground GSCLK 18 25 24 I Reference clock for grayscale PWM control IREF 20 27 26 I Reference current terminal 12, 13, NC – – No connection 28, 29 OUT0 28 7 4 O Constant current output OUT1 1 8 5 O Constant current output OUT2 2 9 6 O Constant current output OUT3 3 10 7 O Constant current output OUT4 4 11 8 O Constant current output OUT5 5 12 9 O Constant current output OUT6 6 13 10 O Constant current output OUT7 7 14 11 O Constant current output OUT8 8 15 14 O Constant current output OUT9 9 16 15 O Constant current output OUT10 10 17 16 O Constant current output OUT11 11 18 17 O Constant current output OUT12 12 19 18 O Constant current output OUT13 13 20 19 O Constant current output OUT14 14 21 20 O Constant current output OUT15 15 22 21 O Constant current output SCLK 25 4 1 I Serial data shift clock SIN 26 5 2 I Serial data input SOUT 17 24 23 O Serial data output VCC 21 28 27 I Power supply voltage Multifunction input pin. When VPRG = GND, the device is in GS mode. When VPRG = VCC, the VPRG 27 6 3 I device is in DC mode. When VPRG = V(PRG), DC register data can programmed into DC EEPROM with DCPRG=HIGH. XERR 16 23 22 O Error output. XERR is an open-drain terminal. XERR goes L when LOD or TEF is detected. Data latch. Note that the internal connections are switched by VPRG. At XLAT ↑ (VPRG = XLAT 24 3 32 I GND), GS register gets new data. At XLAT ↑ (VPRG = V CC), DC register gets new data. 7 |
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