35 MHz count rate — what it buys the design
The CD74HC93MT is a 4-bit binary counter from Texas Instruments' 74HC family. Its 35 MHz count rate means it can accept input clock edges up to 35 million per second — enough for timing and frequency-division in industrial control, motor encoder feedback, and general-purpose digital logic where the upstream signal isn't pushing into the 50 MHz+ range. The negative-edge trigger lets it interface cleanly with preceding logic that transitions on the falling edge, avoiding race conditions in multi-stage counters.
Asynchronous reset — no clock dependency for clearing
The reset is asynchronous, so asserting it clears the counter immediately regardless of the clock state. That matters when you need a guaranteed zero state on power-up or during a fault condition without waiting for a clock edge. In a motor-drive fault latch, for example, you can tie the reset to a watchdog output and know the counter resets the instant the watchdog fires.
Military temperature range — where it fits
Rated -55°C to 125°C, this part is specified for the full military temperature range. That puts it in scope for avionics, satellite power management, downhole instrumentation, and any outdoor or engine-bay application where the ambient can swing from arctic cold to under-hood heat. The 2 V to 6 V supply range also gives flexibility — it runs on a 3.3 V or 5 V rail without a level translator.
Package and footprint
Housed in a 14-SOIC package with a 3.90 mm body width, the CD74HC93MT is a surface-mount part that fits standard SOIC-14 land patterns. The supplier device package is 14-SOIC. No thermal pad or exposed paddle — standard reflow profile for MSL 1 parts applies.