https://e2echina.ti.com/support/logic/zh-CNTelligent Community 13https://e2echina.ti.com/support/logic/f/logic-forum/1094582/sn74ahc238-sn74ahc238bqbr/3939675Tue, 15 Sep 2026 04:28:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:2b9556f5-d5fa-4f12-8b28-404086cc5d80Vivian Gao请联系客服中心质量团队咨询丝印问题。https://e2echina.ti.com/support/logic/f/logic-forum/1093243/txs0108e-txs0108e/3939665Tue, 15 Sep 2026 03:24:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:2943c8a7-e67f-491e-8598-a7620a31ec85jiangbo huang感谢回复 我已决定FPGA不再连接PMBUS，后续有需要可能会用一个单独的TXS，且VCCB和TPS53681用同一电源供电 谢谢https://e2echina.ti.com/support/logic/f/logic-forum/1094582/sn74ahc238-sn74ahc238bqbr/3939663Tue, 15 Sep 2026 02:57:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b2f6d1ee-3f6d-40fe-bf6e-046d8cc47a7aFRANK1感谢您对TI产品的关注！ 关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。https://e2echina.ti.com/support/logic/f/logic-forum/1094582/sn74ahc238-sn74ahc238bqbrTue, 15 Sep 2026 02:50:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:97e79b5b-474e-41f4-8d83-e31854700bd5tong youPart Number: SN74AHC238 26年8月在TI官网采买的SN74AHC238BQBR来料丝印和官网规格书对应的不一致。 来料实物丝印为“AH238Q”，规格书上对应丝印为“AHC238”SN74AHC238https://e2echina.ti.com/support/logic/f/logic-forum/1093243/txs0108e-txs0108e/3936234Wed, 09 Sep 2026 01:12:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e329d6cc-b7f5-4576-8054-fdbd37dd6ca0Vivian Gao我们没有找到完全满足你的要求的。 lsf0204有“When Vref_A, Vref_B = 0, all of data pins and EN pin are Hi-Z”这个特性，但是需要改板，而且你需要看一下其他特性和参数是否满足你的项目需求。 www.ti.com.cn/.../lsf0204.pdfhttps://e2echina.ti.com/support/logic/f/logic-forum/1093243/txs0108e-txs0108e/3935632Tue, 08 Sep 2026 09:57:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:ca33bf09-5d00-4bf6-a7c7-5cfa89ad8a76jiangbo huang有没有同封装的，未上电时为高阻态的电平转换可替换呢 我PMBUS既要用USB TO GPIO， 也要通过电平转换连接FPGAhttps://e2echina.ti.com/support/logic/f/logic-forum/1093243/txs0108e-txs0108e/3935605Tue, 08 Sep 2026 01:58:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:a21590d8-40a5-488e-9325-9424352ce2c2Vivian Gao数据手册这段有说明。 而且VCCA=0V时，这部分内部控制逻辑完全没有偏置电源，因此"检测OE=低→关断上拉FET"这个动作本身无法被正确执行——这正好解释了您"即使把OE直接接GND也没用"的现象：OE引脚本身是Referenced to VCCA的输入，VCCA=0V时，OE输入电路已经失去正常工作的偏置条件。https://e2echina.ti.com/support/logic/f/logic-forum/1093280/tpld1201-rws-evm-doc-cert-tpld2001dgsrq1/3934946Mon, 07 Sep 2026 04:57:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:da30ba45-e6a0-429c-a6c6-89a7d0c37010Alice您好， LaunchPad不可以， TPLD1201 必须使用 TPLD-PROGRAM 和 InterConnect Studio 进行编程。 TPLD801: TPLD801/TPLD1201: how to program by a connected Microcontroller - Simulation, hardware & system design tools forum - Simulation, hardware & system design tools - TI E2E support forumshttps://e2echina.ti.com/support/logic/f/logic-forum/1093280/tpld1201-rws-evm-doc-cert-tpld2001dgsrq1/3934934Mon, 07 Sep 2026 02:26:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b8b9834b-f3b6-42da-b8fa-3a3cb6acaebdFRANK1感谢您对TI产品的关注！ 关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。https://e2echina.ti.com/support/logic/f/logic-forum/1093280/tpld1201-rws-evm-doc-cert-tpld2001dgsrq1Mon, 07 Sep 2026 02:23:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:8243e9c2-c4d7-4de1-8beb-25de7d360281zhang huPart Number: TPLD1201-RWS-EVM-DOC-CERT Other Parts Discussed in Thread: TPLD-PROGRAM , TPLD1201 请问TPLD2001DGSRQ1是不是只能用TPLD-PROGRAM 烧录，LaunchPad可以吗？TPLD1201-RWS-EVM-DOC-CERTTPLD801TPLD1201TPLD-PROGRAMhttps://e2echina.ti.com/support/logic/f/logic-forum/1093243/txs0108e-txs0108e/3934913Sun, 06 Sep 2026 23:36:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:0666222b-c7c0-4ba3-97ab-1b6337491f57Eirwen已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/logic/f/logic-forum/1093243/txs0108e-txs0108eSun, 06 Sep 2026 11:15:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:16034848-d243-4211-beaf-667113e7027cjiangbo huangPart Number: TXS0108E Other Parts Discussed in Thread: TPS53681 , LSF0204 TXS0108E作为PMBUS电平转换。 此时VCCA、VCCB都未上电时，TPS53681的PMBUS应CLK和DIO因为开漏，且上拉到3V3-CON，电平应为3.3V，但实际是0.6V左右，拆掉TXS0108E后，就是3.3V了。 即使我将OE直接与GND相连也是一样的情况。txs0108e电器TPS53681LSF0204https://e2echina.ti.com/support/logic/f/logic-forum/1091108/sn74lvc1g08-sn74lvc1g08dbvr-1pin/3929180Thu, 27 Aug 2026 02:46:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:05f64019-faea-45e8-a38e-aaf5e702b725Eirwen数据表的5.1 绝对最大额定值，若超过这个表格的电压范围，有可能有造成芯片损坏。 www.ti.com.cn/.../sn74lvc1g08.pdfhttps://e2echina.ti.com/support/logic/f/logic-forum/1091108/sn74lvc1g08-sn74lvc1g08dbvr-1pin/3927136Mon, 24 Aug 2026 03:42:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7c99140d-66df-4677-b39c-d69d4ed8f460Eirwen已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/logic/f/logic-forum/1091108/sn74lvc1g08-sn74lvc1g08dbvr-1pinMon, 24 Aug 2026 03:09:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:155c0981-85fa-441a-a515-6d15689822d7first_name last_namePart Number: SN74LVC1G08 SN74LVC1G08DBVR 1PIN对地短路，有哪些情况会导致此问题。我们传感器的TX信号是3.3V，然后通过一个nmos隔离接到SN74LVC1G08DBVR 1PIN。SN74LVC1G08机器人https://e2echina.ti.com/support/logic/f/logic-forum/1089440/sn74ahc1g04/3921437Thu, 13 Aug 2026 02:50:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:86977864-8668-4277-934b-cf23fb6af4afLydia您好，关于 编带揭不开 问题请联 系客 户 支持中心，会有客服帮助您， https://www.ti.com.cn/zh-cn/info/customer-support.htmlhttps://e2echina.ti.com/support/logic/f/logic-forum/1089440/sn74ahc1g04/3921436Thu, 13 Aug 2026 02:47:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:2ef5d434-5b63-4286-aa9c-cbc65340b796Lydia您好， 已 经 收到了您的案例， 调查 需要些 时间 ，感 谢 您的耐心等待。https://e2echina.ti.com/support/logic/f/logic-forum/1089440/sn74ahc1g04Thu, 13 Aug 2026 02:46:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:6cef67bb-d456-4029-ac4f-6c08a72a3814linjun wangPart Number: SN74AHC1G04 SN74AHC1G04DBV 改物料编带揭不开，导致贴片机频繁报警SN74AHC1G04https://e2echina.ti.com/support/logic/f/logic-forum/1089206/sn74lvc1g125-sn74lvc1g125dckr-function-table-question/3920597Wed, 12 Aug 2026 08:53:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:3c889b51-3406-4261-b8e3-2d40f58d04a7LydiaHi， A=X "=Don't Care=A can be H or L (determined level), never equal to" A can be left floating "; https://www.ti.com.cn/lit/ds/symlink/sn74lvc1g125.pdfhttps://e2echina.ti.com/support/logic/f/logic-forum/1089206/sn74lvc1g125-sn74lvc1g125dckr-function-table-question/3920592Wed, 12 Aug 2026 08:25:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:0b6fb15b-1235-412f-af52-3b31316d5c88LydiaHello, we have received your case and the investigation will take some time. Thank you for your patience.