armclub 发表于 2024-3-14 09:59:29

CH9121+MAX232 做的RS232转网口 双向转换方案PCB和原理图





CommentPatternQuantityComponentsSIP21P40.1uF60321C2, C6, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20,C21, C22, C23, C24, C25, C3118K6031R41uF6035C3, C27, C28, C29, C301uF8051C720p6032C4, C522uF35282C1, C2630MHzXTAL62/281X13HEADPOWERX1P24706033R1, R2, R349.91%6034R5, R6, R7, R8CH9121LQFP64M_10x101U1CON3SIP31J1HR911105ARJ45A1P1LM1117_1V8SOT-2231U2LM1117_3V3SOT-2231U3MAX232,ICL232,SP232SO-161U4POWER0805L1LED1RS232-DB9DB91P3SocketSIP11J3UARTSIP31J2

armclub 发表于 2024-3-14 10:00:40

PCB 原理图 回复可见下载
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549977497 发表于 2024-3-14 10:13:50

bidezhi7777 发表于 2024-3-14 10:20:01

小凶许 发表于 2024-3-14 10:21:31

phw611 发表于 2024-3-14 10:28:51

rain-fine 发表于 2024-3-14 10:29:00

hellotxdpj 发表于 2024-3-14 12:22:48

notuntil 发表于 2024-3-14 18:29:22

piziheng 发表于 2024-3-14 20:01:31

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