december 2016 docid029773 rev 1 1 / 5 for further information contact your local stmicroelectronics sales office www.st.com x - nucleo - led16a1 16 channel led driver expansion board based on led1642gw for stm32 nucleo data brief features ? 16 constant current output channels ? output current: from 3 ma to 40 ma ? 20 v current generator rated voltage ? provision for cascading multiple expansion boards ? current adjustment: ? 7 - bit global current gain adjustment in two ranges ? current programmable through external resistor ? 12/16 - bit pwm grayscale brightness control ? selectable led bus voltage supp ly ? usb ? v external ? error detection ? open led ? shorted led ? thermal shutdown ? compatible with stm32 nucleo board ? equipped with arduino? uno r3 connector ? rohs compliant description the x - nucleo - led16a1 is an stm32 nucleo expansion board designed to provide an application for the 16 channel led driver led1642gw. multiple drivers can also be cascaded by coupling x - nucleo - led16a1 expansion boards. depending upon the end application, rgb or si ngle color leds can be connected to the board. separate brightness control is possible for each channel. it is compatible with the stm32 nucleo board family and equipped the arduino? uno r3 connector layout.
schematic diagrams x - nucleo - led16a1 2 / 5 docid029773 rev 1 1 schematic diagrams figure 1 : x - nucleo - led16a1 circuit schematic (1 of 2) g n d g n d + 3 v 3 + 3 v 3 g n d l e d 1 - k l e d 2 - k l e d 3 - k l e d 4 - k l e d 5 - k l e d 6 - k l e d 7 - k l e d 8 - k l e d 9 - k l e d 10 - k l e d 11 - k l e d 12 - k l e d 13 - k l e d 14 - k l e d 15 - k l e d 16 - k + 5v g n d f r o m m cu s d i s d i s d o s c k + 3 v 3 le p w c lk + 5v + 5v + 3 v 3 g n d f r o m m cu s d i s d i d a i s y ch a i n s d i - s d o t o m cu s d o s d o d a i s y ch a i n s d o - s d i t o m cu s d o f r o m m cu s d i s c k s c k g n d l e d 1 - k l e d 2 - k l e d 3 - k l e d 4 - k l e d 5 - k l e d 6 - k l e d 7 - k l e d 8 - k l e d 9 - k l e d 10 - k l e d 11 - k l e d 12 - k l e d 13 - k l e d 14 - k l e d 15 - k l e d 16 - k g n d + 3 v 3 t o m cu s d o le le le le p w c lk p w c lk l e d c o n t r o l l e d c o n t r o l + 3 v 3 l e d c o n t r o l 0 0 0 0 0 0 0 0 i nd i ca t i on l e d 's l e d r a il v o l t a g e c onn ec t o r arduino uno r3 connectors n c i o r ef r eset + 3 v3 + 5 v g n d g n d v i n a0 a1 a2 a3 a4 a5 d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 d 1 5 d 1 4 g n d s c k / d 1 3 m i s o / d 1 2 m o s i/ d 1 1 d 1 0 d 9 d 8 v d d st morpho connectors l e d d r i v er l e d s tr i p h ea d er 1 : 2 + 5 v u s b 2 : 3 e x t e r na l v o l t age d a i s y c h a i n s e l ec t c onn ec t o r s n o r m a l o pe r a t io n j2: 1 : 2 s d i s ig n a l f r o m m c u d a i s y ch a i n j2: 2 : 3 s d i s ig n a l f r o m s d o n o r m a l o pe r a t io n j3: 1 : 2 s d o s ig n a l t o m c u d a i s y ch a i n j3: 2 : 3 s d o s ig n a l t o s d i f a u lt j 3 c o n 3 j 3 c o n 3 1 2 3 r 3 0 0e r 3 0 0e r 3 3 0e r 3 3 0e cn 6 cn 6 1 2 3 4 5 6 7 8 c 3 100nf c 3 100nf cn 9 cn 9 1 2 3 4 5 6 7 8 r 2 2 15e r 2 2 15e c 2 10uf c 2 10uf j 1 c o n 16 j 1 c o n 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 r 2 7 dn m r 2 7 dn m r 2 1 15e r 2 1 15e 0r r 2 0r r 2 r 3 9 0e r 3 9 0e r 2 4 0e r 2 4 0e r 2 0 15e r 2 0 15e r 3 8 0e r 3 8 0e d 2 g r ee n l e d d 2 g r ee n l e d r 2 5 0e r 2 5 0e r 7 33e r 7 33e r 3 560e r 3 560e r 1 9 33e r 1 9 33e c 4 10uf c 4 10uf r 8 15e r 8 15e r 1 8 15e r 1 8 15e r 4 470e r 4 470e r 1 7 15e r 1 7 15e cn 8 cn 8 1 2 3 4 5 6 d 3 s t ps 1l30 d 3 s t ps 1l30 cn 1 cn 1 cn 10 cn 10 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 r 1 6 33e r 1 6 33e r 1 5 15e r 1 5 15e cn 7 cn 7 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 r 2 3 0e r 2 3 0e r 1 11k r 1 11k j 2 c o n 3 j 2 c o n 3 1 2 3 r 1 0 33e r 1 0 33e r 3 5 0e r 3 5 0e u 1 l e d 1642 g w x tt r ( t ss o p 24 e x po s ed pad) u 1 l e d 1642 g w x tt r ( t ss o p 24 e x po s ed pad) g n d 1 s d i 2 c lk 3 le 4 o u t 0 5 o u t 1 6 o u t 2 7 o u t 3 8 o u t 4 9 o u t 5 10 o u t 6 11 o u t 7 12 o u t 12 17 o u t 13 18 o u t 14 19 o u t 15 20 p w c lk 21 s d o 22 r - ex t 23 v dd 24 o u t 8 13 o u t 9 14 o u t 10 15 o u t 11 16 e p 25 r 2 6 0e r 2 6 0e c 1 100nf c 1 100nf r 3 6 0e r 3 6 0e r 9 15e r 9 15e r 5 0e r 5 0e d 1 r e d l e d d 1 r e d l e d cn 2 cn 2 r 3 4 0e r 3 4 0e cn 4 l e d a node c onne c tor cn 4 l e d a node c onne c tor j 4 c o n 3 j 4 c o n 3 1 2 3 r 1 4 15e r 1 4 15e cn 3 i / p c onne c tor cn 3 i / p c onne c tor 1 2 cn 11 cn 11 r 3 1 dn m r 3 1 dn m r 1 3 33e r 1 3 33e r 3 7 0e r 3 7 0e r 1 2 15e r 1 2 15e cn 5 cn 5 1 2 3 4 5 6 7 8 9 10 r 1 1 15e r 1 1 15e gspg2309160945sg
x - nucleo - led16a1 schematic diagrams docid029773 rev 1 3 / 5 figure 2 : x - nucleo - led16a1 circuit schematic (2 of 2) le d r a i l v o l t a g e le d 1_ b le d 1_ r le d 1_ g le d 1_ r le d 1_ g le d 1_ b le d 2_ r le d 2_ g le d 2_ b le d 3_ r le d 3_ g le d 3_ b le d 4_ r le d 4_ g le d 4_ b le d 5_ r le d 5_ g le d 5_ b le d r a i l v o l t a g e le d 2_ b le d 2_ r le d 2_ g le d r a i l v o l t a g e le d 3_ b le d 3_ r le d 3_ g le d r a i l v o l t a g e le d 4_ b le d 4_ r le d 4_ g le d r a i l v o l t a g e le d 5_ b le d 5_ r le d 5_ g le d r a i l v o l t a g e r g b l e d ' s r g b l e d ' s c a t h o d e f e m a l e h e a d e r l e d r a i l v o l t a g e d 5 le d 5 1 2 3 4 d 3 le d 3 1 2 3 4 cn 5 c o n 2 1 2 d 1 le d 1 1 2 3 4 d 4 le d 4 1 2 3 4 j 5 c o n 1 6 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 d 2 le d 2 le d 2 1 2 3 4 gspg2309161015sg
revision history x - nucleo - led16a1 4 / 5 docid029773 rev 1 2 revision history table 1: document revision history date version change s 02 - dec - 2016 1 initial release.
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