STM32L476.sch 11 KB

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  1. EESchema Schematic File Version 4
  2. EELAYER 30 0
  3. EELAYER END
  4. $Descr A4 11693 8268
  5. encoding utf-8
  6. Sheet 2 2
  7. Title ""
  8. Date ""
  9. Rev ""
  10. Comp ""
  11. Comment1 ""
  12. Comment2 ""
  13. Comment3 ""
  14. Comment4 ""
  15. $EndDescr
  16. Wire Wire Line
  17. 3800 5350 3500 5350
  18. Connection ~ 3800 5350
  19. Wire Wire Line
  20. 3500 5350 3200 5350
  21. Connection ~ 3500 5350
  22. Wire Wire Line
  23. 3200 5350 2950 5350
  24. Connection ~ 3200 5350
  25. Wire Wire Line
  26. 2950 5350 2650 5350
  27. Connection ~ 2950 5350
  28. Wire Wire Line
  29. 2650 5350 2350 5350
  30. Connection ~ 2650 5350
  31. Wire Wire Line
  32. 2350 5350 2200 5350
  33. Connection ~ 2350 5350
  34. Wire Wire Line
  35. 4100 5350 3800 5350
  36. Wire Wire Line
  37. 3800 5050 3500 5050
  38. Connection ~ 3800 5050
  39. Wire Wire Line
  40. 3500 5050 3200 5050
  41. Connection ~ 3500 5050
  42. Wire Wire Line
  43. 3200 5050 2950 5050
  44. Connection ~ 3200 5050
  45. Wire Wire Line
  46. 2950 5050 2650 5050
  47. Connection ~ 2950 5050
  48. Wire Wire Line
  49. 2650 5050 2350 5050
  50. Connection ~ 2650 5050
  51. Wire Wire Line
  52. 2350 5050 2200 5050
  53. Connection ~ 2350 5050
  54. Wire Wire Line
  55. 4100 5050 3800 5050
  56. $Comp
  57. L global:C C?
  58. U 1 1 615B5EA2
  59. P 2350 5200
  60. AR Path="/5CEE5B5C/615B5EA2" Ref="C?" Part="1"
  61. AR Path="/615B5EA2" Ref="C?" Part="1"
  62. AR Path="/60D9D499/60D9D7FC/615B5EA2" Ref="C?" Part="1"
  63. AR Path="/60D9D499/615B5EA2" Ref="C?" Part="1"
  64. F 0 "C?" H 2375 5300 50 0000 L CNN
  65. F 1 "4.7µF" H 2375 5100 50 0000 L CNN
  66. F 2 "C:0805" H 2388 5050 50 0001 C CNN
  67. F 3 "" H 2350 5200 50 0000 C CNN
  68. F 4 "607" H 1550 -1775 50 0001 C CNN "Partkeepr"
  69. 1 2350 5200
  70. 1 0 0 -1
  71. $EndComp
  72. Connection ~ 1450 3200
  73. Wire Wire Line
  74. 1450 3200 1150 3200
  75. Connection ~ 1450 2900
  76. Wire Wire Line
  77. 1450 2900 1150 2900
  78. Wire Wire Line
  79. 1800 3100 2200 3100
  80. Wire Wire Line
  81. 1800 3200 1800 3100
  82. Wire Wire Line
  83. 1450 3200 1800 3200
  84. Wire Wire Line
  85. 1800 2900 1800 3000
  86. Wire Wire Line
  87. 1450 2900 1800 2900
  88. Wire Wire Line
  89. 2200 3000 1800 3000
  90. Text Label 4500 3000 0 60 ~ 0
  91. USB_OTG_FS_N
  92. Text Label 4500 2900 0 60 ~ 0
  93. USB_OTG_FS_P
  94. $Comp
  95. L global:C C?
  96. U 1 1 615B5EB5
  97. P 2950 5200
  98. AR Path="/5CEE5B5C/615B5EB5" Ref="C?" Part="1"
  99. AR Path="/615B5EB5" Ref="C?" Part="1"
  100. AR Path="/60D9D499/60D9D7FC/615B5EB5" Ref="C?" Part="1"
  101. AR Path="/60D9D499/615B5EB5" Ref="C?" Part="1"
  102. F 0 "C?" H 2975 5300 50 0000 L CNN
  103. F 1 "1µF" H 2975 5100 50 0000 L CNN
  104. F 2 "C:0805" H 2988 5050 50 0001 C CNN
  105. F 3 "" H 2950 5200 50 0000 C CNN
  106. F 4 "606" H 1575 -700 50 0001 C CNN "Partkeepr"
  107. 1 2950 5200
  108. 1 0 0 -1
  109. $EndComp
  110. $Comp
  111. L global:C C?
  112. U 1 1 615B5EBC
  113. P 3200 5200
  114. AR Path="/5CEE5B5C/615B5EBC" Ref="C?" Part="1"
  115. AR Path="/615B5EBC" Ref="C?" Part="1"
  116. AR Path="/60D9D499/60D9D7FC/615B5EBC" Ref="C?" Part="1"
  117. AR Path="/60D9D499/615B5EBC" Ref="C?" Part="1"
  118. F 0 "C?" H 3225 5300 50 0000 L CNN
  119. F 1 "100nF" H 3225 5100 50 0000 L CNN
  120. F 2 "C:0805" H 3238 5050 50 0001 C CNN
  121. F 3 "" H 3200 5200 50 0000 C CNN
  122. F 4 "605" H 1550 -700 50 0001 C CNN "Partkeepr"
  123. 1 3200 5200
  124. 1 0 0 -1
  125. $EndComp
  126. $Comp
  127. L global:C C?
  128. U 1 1 615B5EC3
  129. P 3500 5200
  130. AR Path="/5CEE5B5C/615B5EC3" Ref="C?" Part="1"
  131. AR Path="/615B5EC3" Ref="C?" Part="1"
  132. AR Path="/60D9D499/60D9D7FC/615B5EC3" Ref="C?" Part="1"
  133. AR Path="/60D9D499/615B5EC3" Ref="C?" Part="1"
  134. F 0 "C?" H 3525 5300 50 0000 L CNN
  135. F 1 "100nF" H 3525 5100 50 0000 L CNN
  136. F 2 "C:0805" H 3538 5050 50 0001 C CNN
  137. F 3 "" H 3500 5200 50 0000 C CNN
  138. F 4 "605" H 825 -1925 50 0001 C CNN "Partkeepr"
  139. 1 3500 5200
  140. 1 0 0 -1
  141. $EndComp
  142. $Comp
  143. L global:C C?
  144. U 1 1 615B5ECA
  145. P 4100 5200
  146. AR Path="/5CEE5B5C/615B5ECA" Ref="C?" Part="1"
  147. AR Path="/615B5ECA" Ref="C?" Part="1"
  148. AR Path="/60D9D499/60D9D7FC/615B5ECA" Ref="C?" Part="1"
  149. AR Path="/60D9D499/615B5ECA" Ref="C?" Part="1"
  150. F 0 "C?" H 4125 5300 50 0000 L CNN
  151. F 1 "100nF" H 4125 5100 50 0000 L CNN
  152. F 2 "C:0805" H 4138 5050 50 0001 C CNN
  153. F 3 "" H 4100 5200 50 0000 C CNN
  154. F 4 "605" H -800 400 50 0001 C CNN "Partkeepr"
  155. 1 4100 5200
  156. 1 0 0 -1
  157. $EndComp
  158. $Comp
  159. L global:C C?
  160. U 1 1 615B5ED1
  161. P 3800 5200
  162. AR Path="/5CEE5B5C/615B5ED1" Ref="C?" Part="1"
  163. AR Path="/615B5ED1" Ref="C?" Part="1"
  164. AR Path="/60D9D499/60D9D7FC/615B5ED1" Ref="C?" Part="1"
  165. AR Path="/60D9D499/615B5ED1" Ref="C?" Part="1"
  166. F 0 "C?" H 3825 5300 50 0000 L CNN
  167. F 1 "100nF" H 3825 5100 50 0000 L CNN
  168. F 2 "C:0805" H 3838 5050 50 0001 C CNN
  169. F 3 "" H 3800 5200 50 0000 C CNN
  170. F 4 "605" H -225 -1975 50 0001 C CNN "Partkeepr"
  171. 1 3800 5200
  172. 1 0 0 -1
  173. $EndComp
  174. $Comp
  175. L global:C C?
  176. U 1 1 615B5ED8
  177. P 1000 2900
  178. AR Path="/5CEE5B5C/615B5ED8" Ref="C?" Part="1"
  179. AR Path="/615B5ED8" Ref="C?" Part="1"
  180. AR Path="/60D9D499/60D9D7FC/615B5ED8" Ref="C?" Part="1"
  181. AR Path="/60D9D499/615B5ED8" Ref="C?" Part="1"
  182. F 0 "C?" H 1025 3000 50 0000 L CNN
  183. F 1 "22pF" H 1025 2800 50 0000 L CNN
  184. F 2 "C:0603" H 1038 2750 50 0001 C CNN
  185. F 3 "" H 1000 2900 50 0000 C CNN
  186. F 4 "600" H 125 -2150 50 0001 C CNN "Partkeepr"
  187. 1 1000 2900
  188. 0 1 1 0
  189. $EndComp
  190. $Comp
  191. L global:C C?
  192. U 1 1 615B5EDF
  193. P 1000 3200
  194. AR Path="/5CEE5B5C/615B5EDF" Ref="C?" Part="1"
  195. AR Path="/615B5EDF" Ref="C?" Part="1"
  196. AR Path="/60D9D499/60D9D7FC/615B5EDF" Ref="C?" Part="1"
  197. AR Path="/60D9D499/615B5EDF" Ref="C?" Part="1"
  198. F 0 "C?" H 1025 3300 50 0000 L CNN
  199. F 1 "22pF" H 1025 3100 50 0000 L CNN
  200. F 2 "C:0603" H 1038 3050 50 0001 C CNN
  201. F 3 "" H 1000 3200 50 0000 C CNN
  202. F 4 "600" H 125 -2150 50 0001 C CNN "Partkeepr"
  203. 1 1000 3200
  204. 0 1 1 0
  205. $EndComp
  206. $Comp
  207. L global:Crystal Y?
  208. U 1 1 615B5EE6
  209. P 1450 3050
  210. AR Path="/5CEE5B5C/615B5EE6" Ref="Y?" Part="1"
  211. AR Path="/615B5EE6" Ref="Y?" Part="1"
  212. AR Path="/60D9D499/60D9D7FC/615B5EE6" Ref="Y?" Part="1"
  213. AR Path="/60D9D499/615B5EE6" Ref="Y?" Part="1"
  214. F 0 "Y?" H 1450 3200 50 0000 C CNN
  215. F 1 "25Mhz" H 1450 2900 50 0000 C CNN
  216. F 2 "Y:5032" H 1450 3050 50 0001 C CNN
  217. F 3 "" H 1450 3050 50 0000 C CNN
  218. F 4 "1650" H 150 -2150 50 0001 C CNN "Partkeepr"
  219. 1 1450 3050
  220. 0 1 1 0
  221. $EndComp
  222. $Comp
  223. L global:C C?
  224. U 1 1 615B5EED
  225. P 2650 5200
  226. AR Path="/5CEE5B5C/615B5EED" Ref="C?" Part="1"
  227. AR Path="/615B5EED" Ref="C?" Part="1"
  228. AR Path="/60D9D499/60D9D7FC/615B5EED" Ref="C?" Part="1"
  229. AR Path="/60D9D499/615B5EED" Ref="C?" Part="1"
  230. F 0 "C?" H 2675 5300 50 0000 L CNN
  231. F 1 "10nF" H 2675 5100 50 0000 L CNN
  232. F 2 "C:0805" H 2688 5050 50 0001 C CNN
  233. F 3 "" H 2650 5200 50 0000 C CNN
  234. F 4 "605" H 75 1125 50 0001 C CNN "Partkeepr"
  235. 1 2650 5200
  236. 1 0 0 -1
  237. $EndComp
  238. Text Label 4100 2200 1 60 ~ 0
  239. swclk
  240. Text Label 4500 2800 0 60 ~ 0
  241. swdio
  242. Text Label 2200 3200 2 60 ~ 0
  243. nrst
  244. Text Label 5900 2200 2 60 ~ 0
  245. swclk
  246. Text Label 5900 2400 2 60 ~ 0
  247. swdio
  248. Text Label 5900 2500 2 60 ~ 0
  249. nrst
  250. Text Label 5900 2300 2 60 ~ 0
  251. GND
  252. Text Label 5900 2100 2 60 ~ 0
  253. 3.3V
  254. $Comp
  255. L conn:CONN_01X05 P?
  256. U 1 1 615B5EFC
  257. P 6100 2300
  258. AR Path="/60D9D499/60D9D7FC/615B5EFC" Ref="P?" Part="1"
  259. AR Path="/60D9D499/615B5EFC" Ref="P?" Part="1"
  260. AR Path="/615B5EFC" Ref="P?" Part="1"
  261. F 0 "P?" H 6178 2341 50 0000 L CNN
  262. F 1 "CONN_01X05" H 6178 2250 50 0000 L CNN
  263. F 2 "Connector:PinHeader2.54_1X5" H 6177 2204 50 0001 L CNN
  264. F 3 "" H 6100 2300 50 0000 C CNN
  265. F 4 "100" H 6100 2300 50 0001 C CNN "Partkeepr"
  266. 1 6100 2300
  267. 1 0 0 -1
  268. $EndComp
  269. Wire Wire Line
  270. 2750 1150 2900 1150
  271. Wire Wire Line
  272. 2750 1400 2750 1150
  273. Wire Wire Line
  274. 2600 1400 2750 1400
  275. Wire Wire Line
  276. 2150 1400 2300 1400
  277. Wire Wire Line
  278. 2150 1150 2150 1400
  279. Connection ~ 2150 1150
  280. Wire Wire Line
  281. 2100 1150 2150 1150
  282. Text Label 2100 1150 2 60 ~ 0
  283. nrst
  284. $Comp
  285. L global:C C?
  286. U 1 1 615B5F0B
  287. P 2450 1400
  288. AR Path="/5CEE5B5C/615B5F0B" Ref="C?" Part="1"
  289. AR Path="/615B5F0B" Ref="C?" Part="1"
  290. AR Path="/60D9D499/60D9D7FC/615B5F0B" Ref="C?" Part="1"
  291. AR Path="/60D9D499/615B5F0B" Ref="C?" Part="1"
  292. F 0 "C?" H 2475 1500 50 0000 L CNN
  293. F 1 "100nF" H 2475 1300 50 0000 L CNN
  294. F 2 "C:0805" H 2488 1250 50 0001 C CNN
  295. F 3 "" H 2450 1400 50 0000 C CNN
  296. F 4 "605" H -8050 300 50 0001 C CNN "Partkeepr"
  297. 1 2450 1400
  298. 0 1 1 0
  299. $EndComp
  300. Text Label 3800 2200 1 50 ~ 0
  301. TX
  302. Text Label 3900 2200 1 50 ~ 0
  303. RX
  304. Text Label 2200 5350 2 50 ~ 0
  305. GND
  306. Text Label 2200 5050 2 50 ~ 0
  307. 3V3
  308. Text Label 4100 4500 3 50 ~ 0
  309. 3V3
  310. Text Label 4000 4500 3 50 ~ 0
  311. GND
  312. Text Label 4500 2700 0 50 ~ 0
  313. GND
  314. Text Label 2700 2200 1 50 ~ 0
  315. GND
  316. Wire Wire Line
  317. 850 2900 850 3200
  318. Text Label 850 3050 2 50 ~ 0
  319. GND
  320. Text Label 2200 3700 2 50 ~ 0
  321. GND
  322. Text Label 2200 3800 2 50 ~ 0
  323. 3V3
  324. Text Label 4500 2600 0 50 ~ 0
  325. 3V3
  326. Connection ~ 2750 1150
  327. $Comp
  328. L global:SW_PUSH SW?
  329. U 1 1 615B5F2D
  330. P 2450 1150
  331. F 0 "SW?" H 2750 1250 50 0000 C CNN
  332. F 1 "nrst" H 2450 1100 50 0000 C CNN
  333. F 2 "" H 2450 1150 50 0000 C CNN
  334. F 3 "" H 2450 1150 50 0000 C CNN
  335. 1 2450 1150
  336. 1 0 0 -1
  337. $EndComp
  338. $Comp
  339. L ST:STM32L476RG U?
  340. U 1 1 615B5F33
  341. P 3350 3350
  342. F 0 "U?" H 4300 2250 50 0000 L CNN
  343. F 1 "STM32L476RG" H 3050 3350 50 0000 L CNN
  344. F 2 "" H 2200 3850 50 0001 C CNN
  345. F 3 "" H 2200 3850 50 0001 C CNN
  346. 1 3350 3350
  347. 1 0 0 -1
  348. $EndComp
  349. Text Label 2600 2200 1 50 ~ 0
  350. 3V3
  351. Text Label 4500 3100 0 60 ~ 0
  352. USB_OTG_FS_ID
  353. Text Label 4500 3200 0 60 ~ 0
  354. USB_OTG_FS_VBUS
  355. Text Label 2800 4500 3 50 ~ 0
  356. 3V3
  357. Text Label 2700 4500 3 50 ~ 0
  358. GND
  359. Wire Wire Line
  360. 4300 1150 4450 1150
  361. Wire Wire Line
  362. 4300 1400 4300 1150
  363. Wire Wire Line
  364. 4150 1400 4300 1400
  365. Wire Wire Line
  366. 3700 1400 3850 1400
  367. Wire Wire Line
  368. 3700 1150 3700 1400
  369. Connection ~ 3700 1150
  370. Wire Wire Line
  371. 3650 1150 3700 1150
  372. Wire Wire Line
  373. 3700 900 3700 1150
  374. Wire Wire Line
  375. 3850 900 3700 900
  376. Wire Wire Line
  377. 4150 900 4450 900
  378. Text Label 3650 1150 2 60 ~ 0
  379. boot
  380. $Comp
  381. L global:R R?
  382. U 1 1 615B5F4A
  383. P 4000 900
  384. AR Path="/5CEE5B5C/615B5F4A" Ref="R?" Part="1"
  385. AR Path="/615B5F4A" Ref="R?" Part="1"
  386. AR Path="/60D9D499/60D9D7FC/615B5F4A" Ref="R?" Part="1"
  387. AR Path="/60D9D499/615B5F4A" Ref="R?" Part="1"
  388. F 0 "R?" V 4080 900 50 0000 C CNN
  389. F 1 "10K" V 4000 900 50 0000 C CNN
  390. F 2 "R:0805" V 3930 900 50 0001 C CNN
  391. F 3 "" H 4000 900 50 0000 C CNN
  392. F 4 "910" H -6500 275 50 0001 C CNN "Partkeepr"
  393. 1 4000 900
  394. 0 1 1 0
  395. $EndComp
  396. $Comp
  397. L global:C C?
  398. U 1 1 615B5F51
  399. P 4000 1400
  400. AR Path="/5CEE5B5C/615B5F51" Ref="C?" Part="1"
  401. AR Path="/615B5F51" Ref="C?" Part="1"
  402. AR Path="/60D9D499/60D9D7FC/615B5F51" Ref="C?" Part="1"
  403. AR Path="/60D9D499/615B5F51" Ref="C?" Part="1"
  404. F 0 "C?" H 4025 1500 50 0000 L CNN
  405. F 1 "100nF" H 4025 1300 50 0000 L CNN
  406. F 2 "C:0805" H 4038 1250 50 0001 C CNN
  407. F 3 "" H 4000 1400 50 0000 C CNN
  408. F 4 "605" H -6500 300 50 0001 C CNN "Partkeepr"
  409. 1 4000 1400
  410. 0 1 1 0
  411. $EndComp
  412. Connection ~ 4300 1150
  413. $Comp
  414. L global:SW_PUSH SW?
  415. U 1 1 615B5F58
  416. P 4000 1150
  417. F 0 "SW?" H 4300 1250 50 0000 C CNN
  418. F 1 "boot" H 4000 1100 50 0000 C CNN
  419. F 2 "" H 4000 1150 50 0000 C CNN
  420. F 3 "" H 4000 1150 50 0000 C CNN
  421. 1 4000 1150
  422. 1 0 0 -1
  423. $EndComp
  424. Text Label 2900 1150 0 50 ~ 0
  425. GND
  426. Text Label 4450 900 0 50 ~ 0
  427. GND
  428. Text Label 4450 1150 0 50 ~ 0
  429. 3V3
  430. Text Label 2200 2600 2 50 ~ 0
  431. pile
  432. $EndSCHEMATC