Active production – no BOM risk
Texas Instruments lists the CD40193BNSR as Active.
Counter architecture and timing
It is a 4-bit synchronous binary counter that counts up or down on each positive clock edge. The asynchronous reset clears all bits immediately, independent of the clock – useful for a hard-reset line that overrides the counting sequence. The 5.5 MHz count rate is modest by today's standards but perfectly adequate for debounced pushbutton inputs, encoder pulse counting at low RPM, or dividing a 10 MHz reference clock down to a slower logic rate.
Package and board-fit
Supplied in a 16-SOIC package with 5.30 mm body width, the footprint is standard and routes easily on a 2-layer board. The supplier device package is 16-SO.
Compliance and documentation
ROHS3 compliant – no RoHS exemption expiry to track. Texas Instruments provides the datasheet and application notes for the 4000B family.