可能有很多读者都还不知道 TTL、RS232、485 到底是什么，本节简单概述一下它们是什么。 TTL：Transistor Transistor Logic，晶体管-晶体管逻辑电平。 比如：0V代表逻辑低电平，5V代表逻辑高电平。像STM32单片机串口引脚输出的逻辑高电平就是3.3V。 你可能会问：什么是 ...

可能有很多读者都还不知道 TTL、RS232、485 到底是什么，本节简单概述一下它们是什么。 1.TTL电平 TTL：Transistor Transistor Logic，晶体管-晶体管逻辑电平。 比如：0V代表逻辑低电平，5V代表逻辑高电平。像STM32单片机串口引脚输出的逻辑高电平就是3.3V。 你可能会问 ...

A variety of logic-circuit techniques have been in use since the 1960s, when integrated logic first came into existence. In the beginning was Resistor-Transistor Logic (RTL). Then came ...

Sometimes, the parts list says it all. 777 transistors, 1223 resistors, 136 LEDs, 455 crimp connectors, 41 protoboards and 500 grams of solder. That’s what went into this transistor logic clock build.

New technical paper titled “Multi-functional multi-gate one-transistor process-in-memory electronics with foundry processing and footprint reduction” from researchers at Ningbo Institute of Materials ...

Only eight lithography masks to create a low-power custom logic chips, compared with 20+ for CMOS, is the claim of Nottingham-based fabless chip start-up ‘Search For The Next’ (SFN). As such, ...

Transistor-transistor-logic or TTL parts have been around for a long time and now and then, I still seem to run across this or that “thing” where they've been designed in, not necessarily in the ...