8N3DV85AC-0044CDI8

Clock/Timing - Programmable Timers and Oscillators

The 8N3DV85AC-0044CDI8 is a programmable timer/oscillator IC. It is CMOS based and uses a variety of external components and supply voltages to form the desired timer/oscillator configuration. A key feature of this device is its dual-channel architecture. On the one hand, a single device can be configured to do almost any type of timer/oscillator-related function. On the other, this device can be used to accomplish multiple and complicated timer/oscillator related control and measurement tasks in a cost-effective manner.

The 8N3DV85AC-0044CDI8 application field and working principle is mainly used in automotive, medical and other industries for constructing a number of timing and timing/counting applications. The 8N3DV85AC-0044CDI8 features two separately controlled measure/compare functions for analog and digital input signals, separately or jointly, along with programmable frequency or pulse generation. Its operating range is from 25KHz to 200MHz, with a frequency range adjustable from 0.5 to 15.5 ns.

This device operates as an integrated comparison channel and oscillator block. Its operation depends on the external components and the supply voltage. The internal construction comprises of two architecture blocks: the time base and the comparison block. The time base is responsible for establishing the period of oscillation. The frequency of the output signal is determined by the ratio of the two components, CL and CF. CL is the feedback capacitor and CF is the external capacitor. The CMOS-based oscillator block is sensitive to the instantaneous change in voltage and produces a narrow, highly-stable output pulse. This means, that one can precisely control the start and end of the pulse, thus allowing this device’s wide range of application.

The external components and their configuration determine the behavior of the module. For example, if one needs a timer/oscillator to perform both periodic and one-shot functions, one can configure the necessary components to achieve this result. This device can mix various timer/oscillator functions in both analog and digital interface schemes, so that versatile functions such as start, stop and reset can be precisely timed and/or timed out. Therefore, a variety of control or measurement of events and responses can be achieved.

The 8N3DV85AC-0044CDI8 can also be configured to operate in a so-called ‘countdown’ or ‘count-up’ mode. In the ‘countdown’ mode, one can program the device to count down from a predetermined number of counts and then reset itself. The ‘count-up’ mode functions similarly, except it counts up from zero until the predefined number is reached. The 8N3DV85AC-0044CDI8 also includes a wide range of edge-triggered and level-sensitive input/output control capabilities.

In summary, the 8N3DV85AC-0044CDI8 application field and working principle makes this device a suitable choice for constructing a wide variety of timing and timing/counting applications. It is useful in a variety of industries and through its flexibility this device can be used to create a variety of precise, value-added solutions.