MNT Reform: Open Source Portable Computer https://mntre.com/reform
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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 4 9
  7. Title "MNT Reform 2 SD Card"
  8. Date "2020-05-19"
  9. Rev "2.0D-4"
  10. Comp "MNT Research GmbH"
  11. Comment1 "https://mntre.com"
  12. Comment2 "Engineer: Lukas F. Hartmann"
  13. Comment3 "License: CERN-OHL-S 2.0"
  14. Comment4 ""
  15. $EndDescr
  16. $Comp
  17. L Connector:SD_Card J3
  18. U 1 1 5D0E6993
  19. P 6950 4050
  20. F 0 "J3" H 6950 4715 50 0000 C CNN
  21. F 1 "SD_Card" H 6950 4624 50 0000 C CNN
  22. F 2 "footprints:TE_1775059-1" H 6950 4050 50 0001 C CNN
  23. F 3 "https://www.te.com/usa-en/product-1775059-1.html" H 6950 4050 50 0001 C CNN
  24. F 4 "TE" H 6950 4050 50 0001 C CNN "Manufacturer"
  25. F 5 "1775059-1" H 6950 4050 50 0001 C CNN "Manufacturer_No"
  26. F 6 "y" H 6950 4050 50 0001 C CNN "Checked"
  27. F 7 "Mouser" H 6950 4050 50 0001 C CNN "Distributor"
  28. 1 6950 4050
  29. 1 0 0 1
  30. $EndComp
  31. Text GLabel 3600 3750 0 50 Input ~ 0
  32. SD2_DATA0
  33. Text GLabel 3600 3650 0 50 Input ~ 0
  34. SD2_DATA1
  35. Text GLabel 3600 4350 0 50 Input ~ 0
  36. SD2_DATA2
  37. Text GLabel 3600 4250 0 50 Input ~ 0
  38. SD2_DATA3
  39. Text GLabel 3600 4150 0 50 Input ~ 0
  40. SD2_CMD
  41. Text GLabel 3600 3950 0 50 Input ~ 0
  42. SD2_CLK
  43. Text GLabel 8500 4250 2 50 Output ~ 0
  44. SD2_CD
  45. Wire Wire Line
  46. 8500 4250 8300 4250
  47. Wire Wire Line
  48. 7850 4150 8500 4150
  49. $Comp
  50. L Device:R_Small R42
  51. U 1 1 5D1CB92A
  52. P 8300 3850
  53. F 0 "R42" H 8359 3896 50 0000 L CNN
  54. F 1 "1.5k" H 8359 3805 50 0000 L CNN
  55. F 2 "Resistor_SMD:R_0603_1608Metric" H 8300 3850 50 0001 C CNN
  56. F 3 "~" H 8300 3850 50 0001 C CNN
  57. F 4 "Yageo" H 8300 3850 50 0001 C CNN "Manufacturer"
  58. F 5 "RC0603FR-071K5L" H 8300 3850 50 0001 C CNN "Manufacturer_No"
  59. F 6 "y" H 8300 3850 50 0001 C CNN "Checked"
  60. F 7 "Mouser" H 8300 3850 50 0001 C CNN "Distributor"
  61. 1 8300 3850
  62. 1 0 0 -1
  63. $EndComp
  64. Wire Wire Line
  65. 8300 4250 8300 3950
  66. Connection ~ 8300 4250
  67. Wire Wire Line
  68. 8300 4250 7850 4250
  69. $Comp
  70. L power:GND #PWR0153
  71. U 1 1 5D1CD57E
  72. P 6050 3850
  73. F 0 "#PWR0153" H 6050 3600 50 0001 C CNN
  74. F 1 "GND" V 6055 3722 50 0000 R CNN
  75. F 2 "" H 6050 3850 50 0001 C CNN
  76. F 3 "" H 6050 3850 50 0001 C CNN
  77. 1 6050 3850
  78. 0 1 -1 0
  79. $EndComp
  80. $Comp
  81. L power:GND #PWR0154
  82. U 1 1 5D1CDDEB
  83. P 6050 4150
  84. F 0 "#PWR0154" H 6050 3900 50 0001 C CNN
  85. F 1 "GND" V 6055 4022 50 0000 R CNN
  86. F 2 "" H 6050 4150 50 0001 C CNN
  87. F 3 "" H 6050 4150 50 0001 C CNN
  88. 1 6050 4150
  89. 0 1 -1 0
  90. $EndComp
  91. $Comp
  92. L power:GND #PWR0155
  93. U 1 1 5D1CE3E8
  94. P 7950 4500
  95. F 0 "#PWR0155" H 7950 4250 50 0001 C CNN
  96. F 1 "GND" H 7955 4327 50 0000 C CNN
  97. F 2 "" H 7950 4500 50 0001 C CNN
  98. F 3 "" H 7950 4500 50 0001 C CNN
  99. 1 7950 4500
  100. -1 0 0 -1
  101. $EndComp
  102. Wire Wire Line
  103. 7950 3850 7850 3850
  104. Wire Wire Line
  105. 7850 3950 7950 3950
  106. Wire Wire Line
  107. 7950 3950 7950 3850
  108. Text Notes 3400 5200 0 50 ~ 0
  109. Includes ESD protection on A port
  110. Text Notes 6600 4900 0 50 ~ 0
  111. TE 1775059-1
  112. $Comp
  113. L Device:C_Small C137
  114. U 1 1 5EE5821E
  115. P 5000 3150
  116. F 0 "C137" H 5092 3196 50 0000 L CNN
  117. F 1 "10uF" H 5092 3105 50 0000 L CNN
  118. F 2 "Capacitor_SMD:C_0603_1608Metric" H 5000 3150 50 0001 C CNN
  119. F 3 "~" H 5000 3150 50 0001 C CNN
  120. F 4 "Murata" H 5000 3150 50 0001 C CNN "Manufacturer"
  121. F 5 "GRM188R6YA106MA73D" H 5000 3150 50 0001 C CNN "Manufacturer_No"
  122. F 6 "y" H 5000 3150 50 0001 C CNN "Checked"
  123. F 7 "Mouser" H 5000 3150 50 0001 C CNN "Distributor"
  124. 1 5000 3150
  125. 1 0 0 -1
  126. $EndComp
  127. $Comp
  128. L Device:C_Small C138
  129. U 1 1 5EE585F1
  130. P 5350 3150
  131. F 0 "C138" H 5442 3196 50 0000 L CNN
  132. F 1 "0.1uF" H 5442 3105 50 0000 L CNN
  133. F 2 "Capacitor_SMD:C_0603_1608Metric" H 5350 3150 50 0001 C CNN
  134. F 3 "~" H 5350 3150 50 0001 C CNN
  135. F 4 "Yageo" H 5350 3150 50 0001 C CNN "Manufacturer"
  136. F 5 "CC0603JPX7R9BB104" H 5350 3150 50 0001 C CNN "Manufacturer_No"
  137. F 6 "y" H 5350 3150 50 0001 C CNN "Checked"
  138. F 7 "Mouser" H 5350 3150 50 0001 C CNN "Distributor"
  139. 1 5350 3150
  140. 1 0 0 -1
  141. $EndComp
  142. Wire Wire Line
  143. 5700 3050 5350 3050
  144. Wire Wire Line
  145. 5700 3050 5700 4050
  146. Wire Wire Line
  147. 5350 3050 5000 3050
  148. Connection ~ 5350 3050
  149. Connection ~ 5000 3050
  150. $Comp
  151. L power:GND #PWR082
  152. U 1 1 5EE59DFE
  153. P 5000 3300
  154. F 0 "#PWR082" H 5000 3050 50 0001 C CNN
  155. F 1 "GND" H 5005 3127 50 0000 C CNN
  156. F 2 "" H 5000 3300 50 0001 C CNN
  157. F 3 "" H 5000 3300 50 0001 C CNN
  158. 1 5000 3300
  159. 1 0 0 -1
  160. $EndComp
  161. Wire Wire Line
  162. 5000 3250 5000 3300
  163. Wire Wire Line
  164. 5000 3250 5350 3250
  165. Connection ~ 5000 3250
  166. NoConn ~ 8500 4150
  167. $Comp
  168. L Logic_LevelTranslator:TXS0108EPW U8
  169. U 1 1 5E91B0C3
  170. P 4000 3950
  171. F 0 "U8" H 4000 2950 50 0000 C CNN
  172. F 1 "TXS0108EPW" H 4000 2850 50 0000 C CNN
  173. F 2 "Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm" H 4000 3200 50 0001 C CNN
  174. F 3 "www.ti.com/lit/ds/symlink/txs0108e.pdf" H 4000 3850 50 0001 C CNN
  175. F 4 "Texas Instruments" H 4000 3950 50 0001 C CNN "Manufacturer"
  176. F 5 "TXS0108EPW" H 4000 3950 50 0001 C CNN "Manufacturer_No"
  177. F 6 "y" H 4000 3950 50 0001 C CNN "Checked"
  178. F 7 "Mouser" H 4000 3950 50 0001 C CNN "Distributor"
  179. 1 4000 3950
  180. 1 0 0 -1
  181. $EndComp
  182. Wire Wire Line
  183. 4400 3650 6050 3650
  184. Wire Wire Line
  185. 4400 3750 6050 3750
  186. $Comp
  187. L power:GND #PWR0134
  188. U 1 1 5E91ECC8
  189. P 4000 4650
  190. F 0 "#PWR0134" H 4000 4400 50 0001 C CNN
  191. F 1 "GND" H 4005 4477 50 0000 C CNN
  192. F 2 "" H 4000 4650 50 0001 C CNN
  193. F 3 "" H 4000 4650 50 0001 C CNN
  194. 1 4000 4650
  195. -1 0 0 -1
  196. $EndComp
  197. NoConn ~ 3600 3850
  198. NoConn ~ 3600 4050
  199. NoConn ~ 4400 3850
  200. NoConn ~ 4400 4050
  201. $Comp
  202. L power:+3V3 #PWR0147
  203. U 1 1 5E921E7A
  204. P 2700 1800
  205. F 0 "#PWR0147" H 2700 1650 50 0001 C CNN
  206. F 1 "+3V3" H 2715 1973 50 0000 C CNN
  207. F 2 "" H 2700 1800 50 0001 C CNN
  208. F 3 "" H 2700 1800 50 0001 C CNN
  209. 1 2700 1800
  210. 1 0 0 -1
  211. $EndComp
  212. $Comp
  213. L Device:R_Small R35
  214. U 1 1 5E9224EE
  215. P 3350 3550
  216. F 0 "R35" V 3154 3550 50 0000 C CNN
  217. F 1 "0" V 3245 3550 50 0000 C CNN
  218. F 2 "Resistor_SMD:R_0603_1608Metric" H 3350 3550 50 0001 C CNN
  219. F 3 "~" H 3350 3550 50 0001 C CNN
  220. F 4 "Vishay Dale" H 3350 3550 50 0001 C CNN "Manufacturer"
  221. F 5 "CRCW06030000Z0EAC" H 3350 3550 50 0001 C CNN "Manufacturer_No"
  222. F 6 "y" H 3350 3550 50 0001 C CNN "Checked"
  223. F 7 "Mouser" H 3350 3550 50 0001 C CNN "Distributor"
  224. 1 3350 3550
  225. 0 1 1 0
  226. $EndComp
  227. Wire Wire Line
  228. 3450 3550 3600 3550
  229. Wire Wire Line
  230. 3100 3550 3250 3550
  231. Wire Wire Line
  232. 4100 3150 4100 3250
  233. $Comp
  234. L power:+1V8 #PWR0148
  235. U 1 1 5E92669E
  236. P 3900 2450
  237. F 0 "#PWR0148" H 3900 2300 50 0001 C CNN
  238. F 1 "+1V8" H 3915 2623 50 0000 C CNN
  239. F 2 "" H 3900 2450 50 0001 C CNN
  240. F 3 "" H 3900 2450 50 0001 C CNN
  241. 1 3900 2450
  242. 1 0 0 -1
  243. $EndComp
  244. Wire Wire Line
  245. 3900 2650 3900 2700
  246. Wire Wire Line
  247. 2700 3150 4100 3150
  248. Connection ~ 2700 3150
  249. $Comp
  250. L Device:C_Small C56
  251. U 1 1 5E92B357
  252. P 2350 3300
  253. F 0 "C56" H 2442 3346 50 0000 L CNN
  254. F 1 "0.1uF" H 2442 3255 50 0000 L CNN
  255. F 2 "Capacitor_SMD:C_0603_1608Metric" H 2350 3300 50 0001 C CNN
  256. F 3 "~" H 2350 3300 50 0001 C CNN
  257. F 4 "Yageo" H 2350 3300 50 0001 C CNN "Manufacturer"
  258. F 5 "CC0603JPX7R9BB104" H 2350 3300 50 0001 C CNN "Manufacturer_No"
  259. F 6 "y" H 2350 3300 50 0001 C CNN "Checked"
  260. F 7 "Mouser" H 2350 3300 50 0001 C CNN "Distributor"
  261. 1 2350 3300
  262. 1 0 0 -1
  263. $EndComp
  264. Wire Wire Line
  265. 2700 3150 2350 3150
  266. Wire Wire Line
  267. 2350 3150 2350 3200
  268. $Comp
  269. L Device:C_Small C57
  270. U 1 1 5E92C316
  271. P 4550 2800
  272. F 0 "C57" H 4642 2846 50 0000 L CNN
  273. F 1 "0.1uF" H 4642 2755 50 0000 L CNN
  274. F 2 "Capacitor_SMD:C_0603_1608Metric" H 4550 2800 50 0001 C CNN
  275. F 3 "~" H 4550 2800 50 0001 C CNN
  276. F 4 "Yageo" H 4550 2800 50 0001 C CNN "Manufacturer"
  277. F 5 "CC0603JPX7R9BB104" H 4550 2800 50 0001 C CNN "Manufacturer_No"
  278. F 6 "y" H 4550 2800 50 0001 C CNN "Checked"
  279. F 7 "Mouser" H 4550 2800 50 0001 C CNN "Distributor"
  280. 1 4550 2800
  281. 1 0 0 -1
  282. $EndComp
  283. $Comp
  284. L power:GND #PWR0149
  285. U 1 1 5E92E29E
  286. P 2350 3400
  287. F 0 "#PWR0149" H 2350 3150 50 0001 C CNN
  288. F 1 "GND" H 2355 3227 50 0000 C CNN
  289. F 2 "" H 2350 3400 50 0001 C CNN
  290. F 3 "" H 2350 3400 50 0001 C CNN
  291. 1 2350 3400
  292. -1 0 0 -1
  293. $EndComp
  294. $Comp
  295. L power:GND #PWR0150
  296. U 1 1 5E92E5E4
  297. P 4550 2900
  298. F 0 "#PWR0150" H 4550 2650 50 0001 C CNN
  299. F 1 "GND" H 4555 2727 50 0000 C CNN
  300. F 2 "" H 4550 2900 50 0001 C CNN
  301. F 3 "" H 4550 2900 50 0001 C CNN
  302. 1 4550 2900
  303. -1 0 0 -1
  304. $EndComp
  305. Wire Wire Line
  306. 3900 2700 4550 2700
  307. Connection ~ 3900 2700
  308. Wire Wire Line
  309. 3900 2700 3900 2850
  310. $Comp
  311. L Device:R_Small R34
  312. U 1 1 5E9353CA
  313. P 2700 1950
  314. F 0 "R34" H 2641 1904 50 0000 R CNN
  315. F 1 "0" H 2641 1995 50 0000 R CNN
  316. F 2 "Resistor_SMD:R_0603_1608Metric" H 2700 1950 50 0001 C CNN
  317. F 3 "~" H 2700 1950 50 0001 C CNN
  318. F 4 "Vishay Dale" H 2700 1950 50 0001 C CNN "Manufacturer"
  319. F 5 "CRCW06030000Z0EAC" H 2700 1950 50 0001 C CNN "Manufacturer_No"
  320. F 6 "Mouser" H 2700 1950 50 0001 C CNN "Distributor"
  321. F 7 "y" H 2700 1950 50 0001 C CNN "Checked"
  322. 1 2700 1950
  323. -1 0 0 1
  324. $EndComp
  325. Wire Wire Line
  326. 2700 1850 2700 1800
  327. Wire Wire Line
  328. 2700 2050 2700 2200
  329. Wire Wire Line
  330. 2700 2200 5000 2200
  331. Wire Wire Line
  332. 5000 2200 5000 3050
  333. Connection ~ 2700 2200
  334. Wire Wire Line
  335. 2700 2200 2700 3150
  336. Wire Wire Line
  337. 5700 4050 6050 4050
  338. Wire Wire Line
  339. 6050 3950 4400 3950
  340. Wire Wire Line
  341. 4400 4150 5700 4150
  342. Wire Wire Line
  343. 5700 4150 5700 4250
  344. Wire Wire Line
  345. 5700 4250 6050 4250
  346. Wire Wire Line
  347. 4400 4250 5600 4250
  348. Wire Wire Line
  349. 5600 4250 5600 4350
  350. Wire Wire Line
  351. 5600 4350 6050 4350
  352. Wire Wire Line
  353. 4400 4350 5500 4350
  354. Wire Wire Line
  355. 5500 4350 5500 4450
  356. Wire Wire Line
  357. 5500 4450 6050 4450
  358. Wire Wire Line
  359. 7950 3950 7950 4500
  360. Connection ~ 7950 3950
  361. Wire Wire Line
  362. 8300 2200 5000 2200
  363. Wire Wire Line
  364. 8300 2200 8300 3750
  365. Connection ~ 5000 2200
  366. $Comp
  367. L Device:R_Small R65
  368. U 1 1 5E039B4B
  369. P 3900 2550
  370. F 0 "R65" H 3841 2504 50 0000 R CNN
  371. F 1 "0" H 3841 2595 50 0000 R CNN
  372. F 2 "Resistor_SMD:R_0603_1608Metric" H 3900 2550 50 0001 C CNN
  373. F 3 "~" H 3900 2550 50 0001 C CNN
  374. F 4 "Vishay Dale" H 3900 2550 50 0001 C CNN "Manufacturer"
  375. F 5 "CRCW06030000Z0EAC" H 3900 2550 50 0001 C CNN "Manufacturer_No"
  376. F 6 "Mouser" H 3900 2550 50 0001 C CNN "Distributor"
  377. F 7 "y" H 3900 2550 50 0001 C CNN "Checked"
  378. 1 3900 2550
  379. -1 0 0 1
  380. $EndComp
  381. $Comp
  382. L power:PWR_FLAG #FLG0117
  383. U 1 1 5EC4072D
  384. P 3900 2850
  385. F 0 "#FLG0117" H 3900 2925 50 0001 C CNN
  386. F 1 "PWR_FLAG" V 3900 2978 50 0000 L CNN
  387. F 2 "" H 3900 2850 50 0001 C CNN
  388. F 3 "~" H 3900 2850 50 0001 C CNN
  389. 1 3900 2850
  390. 0 1 1 0
  391. $EndComp
  392. Connection ~ 3900 2850
  393. Wire Wire Line
  394. 3900 2850 3900 3250
  395. $Comp
  396. L power:PWR_FLAG #FLG0118
  397. U 1 1 5EC40BBD
  398. P 2700 2200
  399. F 0 "#FLG0118" H 2700 2275 50 0001 C CNN
  400. F 1 "PWR_FLAG" V 2700 2327 50 0000 L CNN
  401. F 2 "" H 2700 2200 50 0001 C CNN
  402. F 3 "~" H 2700 2200 50 0001 C CNN
  403. 1 2700 2200
  404. 0 -1 -1 0
  405. $EndComp
  406. Wire Wire Line
  407. 3100 3550 3100 2850
  408. Wire Wire Line
  409. 3100 2850 3900 2850
  410. $EndSCHEMATC