Clock generator for CPU timing, 25 MHz ceiling
The Intel 5962-8773403VA is a non-PLL clock generator designed to produce a single-ended clock output from an external crystal, with a maximum output frequency of 25 MHz. The 1:2 input-to-output ratio means one crystal drives two clock outputs, suitable for distributing a master clock to a CPU and its cache controller or bus interface. The non-differential I/O (No/No) means the outputs are single-ended, not LVDS or HCSL, so the trace routing on the PCB must match the impedance of the clock receiver's input.
Military temperature range and hermetic package
This is the screening range for MIL-STD-883 Class B and S devices — the part can be procured with lot date code traceability and radiation lot acceptance testing (RLAT) when specified through the hi-rel supply chain. Housed in an 18-lead ceramic dual-in-line package (18-CDIP), the hermetic seal protects the die from moisture and outgassing. The through-hole mounting suits socketed or soldered assembly on FR4 or polyimide boards. The supplier device package is also 18-CDIP, so the footprint matches standard 0.100-inch pitch DIP sockets.
Active lifecycle, RoHS non-compliant by design
The part is RoHS non-compliant, meaning the leads and internal solder joints contain lead. This is standard for hi-rel ceramic packages where tin whisker risk from pure-tin finishes is unacceptable. The exemption under RoHS Annex III (lead in high-melting-temperature solders) applies for aerospace and defense programs.