Supply voltage and what it means for your BOM
The 3V to 18V supply range is the headline feature of this part. It means the CD4077BNSR can run directly from a 3.6V lithium cell, a 5V logic rail, a 12V automotive battery, or an unregulated 15V supply in industrial equipment — no separate regulator needed. This simplifies the power tree and reduces BOM cost in multi-voltage designs. The 1 µA max quiescent current ensures negligible standby drain, critical for battery-powered instruments or always-on monitoring circuits.
Temperature grade and deployment environment
Rated for -55°C to 125°C, the CD4077BNSR is qualified for military, avionics, satellite, and downhole applications where commercial or industrial parts would not survive.
Propagation delay and speed considerations
The maximum propagation delay is 100 ns at 15V supply with a 50 pF load. This is typical for 4000B CMOS — the family trades speed for wide voltage range and low power.
Lifecycle and sourcing reality
The CD4077BNSR is listed as Active with ROHS3 compliance. The 4000B series has been in production for decades, and TI continues to support it, so long-term supply is stable.
