The document describes the Motorola 1678, a 4-bit bi-quinary counter capable of divide-by-two, divide-by-five, or divide-by-ten functions. It features asynchronous set and reset inputs that override the clock signal and provides complementary outputs for specific bits.
This datasheet covers absolute maximum ratings, operating conditions across various temperatures (-30°C to +85°C), logic diagrams, truth tables, state diagrams, and detailed mechanical package dimensions for ceramic and plastic variants.
| Clock Trigger Edge | Positive going edge |
|---|---|
| Typical Divide-by-Two Frequency | 350 MHz |
| Typical Divide-by-Five Frequency | 325 MHz |
| Operating Temperature Range | -30°C to +85°C |
| Power Dissipation | 750 mW typ |
The device is electrically tested and operates within a range of -30°C to +85°C.
The clock inputs are designed to trigger on the positive going edge of the clock pulse.