The ICM7216A and ICM7216B can function as a frequency counter, period counter, frequency ratio (fA/fB) counter, time interval counter or as a totalizing counter. The counter uses either a 10MHz or lMHz quartz crystal timebase. For period and time interval, the 10MHz timebase gives a O.lccs resolution. In period average and time interval average, the resolution can be in the nanosecond range. In the frequency mode, the user can select accumulation times of O.Ols, O.ls, 1s and 10s. With a 10s accumulation time, the frequency can be displayed to a resolution of O.1Hz in the least significant digit. There is 0.2s between measurements in all ranges.
PC74HCT166T on stock| Conduction angle | Sinusoidal conduction | Rectangular conduction | U nits | Conditions |
| 1800 | 0 019 | 0 015 | | Tj 2 Tj max |
| 1200 | 0 023 | 0 025 |
| 900 | 0 030 | 0 034 | K/W |
| 600 | 0 045 | 0 047 |
| 300 | 0 076 | 0 076 |
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