UCS5822H

The UCS5822H has the following features including 3.3 MHz Minimum Data Input Rate;High-Voltage Current-Sink Outputs;CMOS, PMOS, NMOS,TTL Compatible;Low-Power CMOS Logic and Latches;Internal Pull-Up/Pull-Down Resistors;Hermetically Sealed Packages to MIL-M-38510;High-Reliability Screening to MIL-STD-883, Class B.

Intended for military, aerospace, and related applications. The 5822H 8-bit, serial-input, latched driver combines bipolar Darlington drivers with MOS logic circuitry (BiMOS) to provide an interface flexibility beyond the reach of standard logic buffers arid power driver arrays.BiMOS II devices have considerably better data original BiMOS circuits. With a 5 V supply, they typically operate above 5 MHz. With a 12V supply, signincanny higher speeds are obtained.Each driver contains a CMOS shift register and associated latches designed for operation over a 5 V to 15 V supply-voltage range.When used with standard TTL or Schottky TTL,appropritate pull-up resistors may be required to ensure an input-logic high.The CMOS serial-data output allows cascading these devices for onterface applications rquring additional drive lines.The eight high-current bipolaroutputs can drive multiplexed LED displays, incandescent lamps, thermal print heads, and (with appropriate clamping techniques) relays,Solenoids and other high-power inductive loads. Under normal operating conditions, and without heat sinking,these devices can sustain 200 mA per output of 85 at a 51% duty cycle. Other combinations of number of conducting outputs,temperature, and duty cycle are shown on the following page.The UCS5822H is furnished in 16-pin side-brazed dua( in-line hermetic packages. R2verse-bias burn-in and 100% high-reliability screening to MIL-STD-883, Class B are standard.

Information present at an input is transferred to its latch when the STROBE is high. A high CLEAR input will set all latches to the output OFF condition regardless of the data or STROBE input levels. A high OUTPUT ENABLE will set all outputs to the OFF condition, regardless of any other input conditions. When the OUTPUT ENABLE is low, the outputs depend on the state of their respective latches.