Summary of pull-up resistors for pull-up resistors

Pull-up resistor:
1. When the TTL circuit drives the COMS circuit, if the high level of the TTL circuit output is lower than the lowest level of the COMS circuit (generally 3.5V), then the pull-up resistor needs to be connected at the output end of the TTL to improve Output a high va

And over budget! Do you calculate the small cost of installation?

In recent days, Xiaobian’s test platform also needs to be updated, and it still needs to add a cooling fan. Although not expensive, but carefully think about the small parts together at the time of installation is also a lot of money, it is no wonder that the