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STD Gemelli

License: Public Domain

Mode: Editors' pick

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Update time: 2023-10-04 09:04:42
Creation time: 2023-06-19 23:54:17
Description

A split keyboard design on STM32F446RET6 microcontrollers. Very OP, very nice. Uses USB C for all external connections and for SPI communication between MCUs and supports two I2C displays.

Design Drawing
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ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier JLCPCB Part Class spiceSymbolName Contributor
1 100nF C1,C4,C5,C6,C8,C10,C22,C7,C9,C11,C12,C13,C21,C23 C0603 14 CC0603KRX7R9BB104 YAGEO(国巨) LCSC C14663 Basic Part CC0603KRX7R9BB104
2 10uF C2,C3,C18,C19 C0603 4 CL10A106MA8NRNC SAMSUNG(三星) LCSC C96446 Basic Part CL10A106MA8NRNC
3 14pF C14,C15,C16,C17 C0603 4 CL10C140JB8NNNC SAMSUNG(三星) LCSC C170136 Extended Part CL10C140JB8NNNC
4 47uF C20 C1206 1 GRM31CR61A476ME15L muRata(村田) LCSC C94034 Extended Part GRM31CR61A476ME15L
5 1uF C24,C25 C0603 2 CC0603KRX7R7BB105 YAGEO(国巨) LCSC C106248 Extended Part CC0603KRX7R7BB105
6 4.7uF C30,C31 C0603 2 CSA0603X5R475K6R3JT HRE(芯声) LCSC C3015159 Extended Part CSA0603X5R475K6R3JT
7 LM3940IMP-3.3/NOPB DC_DC SOT-223_L6.5-W3.5-P2.30-LS7.0-BR 1 LM3940IMP-3.3/NOPB TI(德州仪器) LCSC C140319 Extended Part LM3940IMP-3.3/NOPB
8 EC12E24204A2 ENCODER_1,ENCODER_2 SW-TH_EC12E24204A2 2 EC12E24204A2 ALPS Electric LCSC C351238 Extended Part EC12E24204A2
9 TPUSBLC6-2SC6 ESD SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR 1 TPUSBLC6-2SC6 TECH PUBLIC(台舟) LCSC C558442 Extended Part TPUSBLC6-2SC6
10 Ferrite Beads L1,L2 L0603 2 BLM18PG121SN1D muRata(村田) LCSC C14709 Extended Part BLM18PG121SN1D_C14709
11 STM32F446RET6 MASTER,SLAVE LQFP-64_L10.0-W10.0-P0.50-LS12.0-BL 2 STM32F446RET6 ST(意法半导体) LCSC C69336 Extended Part STM32F446RET6
12 USB-TYPE-C-017 PC_USB1,SPI_MASTER,SPI_SLAVE USB-TYPE-C-SMD_C9900008089 3 USB-TYPE-C-017 DEALON(德艺隆) LCSC C2927037 Extended Part USB-TYPE-C-017
13 5.1kΩ R1,R2 R0603 2 RTT03512JTP RALEC(旺诠) LCSC C103696 Extended Part RTT03512JTP 5.1K
14 715Ω R3,R4 R0603 2 CR0603FA7150G LIZ(丽智电子) LCSC C101173 Extended Part CR0603FA7150G 715
15 22Ω R7,R8,R25,R26,R27 R0603 5 0603WAF220JT5E UNI-ROYAL(厚声) LCSC C23345 Basic Part 0603WAF220JT5E 22
16 10kΩ R17,R18,R21,R22,R19,R20,R23,R24,R5,R6,R9,R10,R11,R12,R13,R14,R15,R16 R0603 18 0603WAF1002T5E UNI-ROYAL(厚声) LCSC C25804 Basic Part 0603WAF1002T5E 10K
17 TS-1088-AR02016 RST_1,RST_2 SW-SMD_L3.9-W3.0-P4.45 2 TS-1088-AR02016 XUNPU(讯普) LCSC C720477 Extended Part TS-1088-AR02016
18 16MHz X1,X2 CRYSTAL-SMD_4P-L3.2-W2.5-BL 2 X322516MOB4SI YXC(扬兴晶振) LCSC C12668 Extended Part X322516MOB4SI
19 1N4148W_C81598 D1,D2,D3,D4,D5,D6,D9,D10,D11,D12,D13,D14,D15,D16,D17,D18,D19,D20,D23,D24,D25,D26,D27,D28,D29,D30,D31,D32,D33,D34,D35,D36,D37,D38,D39,D40,D41,D42,D43,D44,D45,D46,D47,D48,D49,D50,D51,D52,D53,D54,D55,D56,D57,D58,D59,D60,D61,D62 SOD-123F_L2.7-W1.6-LS3.8-RD 58 1N4148W ST(先科) LCSC C81598 Basic Part 1N4148W_C81598

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