Tool/software:
1. What's the topology difference between SN74ABT541 and SN74LV541?
2. Is the output of the SN74LV541AT able to connect to pull-high 5V rail? It looks the abs rating is different for both devices for VO?
SN74LV541AT => VCC+0.5V; When VCC=0V, the VO derating is only 0.5V~
SN74ABT541B=> 5.5V
Regards
Brian
ABT uses bipolar transistors and allows very high output currents. LV-A is plain CMOS.
Both devices allow pull-ups when the output is disabled or powered off. (The LV-AT datasheet has a separate limit for that case.)
Thanks.
I'm still confused about the abs max. voltage rating at VO pin. The max voltage rating of the VO pin is addressed as Vcc + 0.5V. When Vcc=0V, is voltage derating is only 0.5V???
In the 74LV541AT from Nexperia, customer thinks it is much clear to address the output voltage derating. Please find below with active mode and power-doen mode. When power down mode, max. voltage is up to +7V. It is much easily to understand the voltage stress, isn't?
