UCN5821
FEATURES
I To 3.3 MHz Data Input Rate I CMOS, NMOS, TTL patible I Internal Pull-Down Resistors I Low-Power CMOS Logic & Latches I High-Voltage Current-Sink Outputs I Automotive Capable
Always order by plete part number, e.g., UCN5821A .
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5821 AND 5822 8-BIT SERIAL-INPUT, LATCHED DRIVERS
TYPICAL INPUT CIRCUITS
V DD
CLOCK SERIAL DATA IN LOGIC GROUND
FUNCTIONAL BLOCK DIAGRAM
LOGIC SUPPLY SERIAL DATA OUT STROBE OUTPUT ENABLE (ACTIVE LOW)
SERIAL-PARALLEL SHIFT REGISTER
LATCHES
STROBE & OUTPUT ENABLE
16 15 14 13 12 11 10 9
MOS BIPOLAR
POWER GROUND
Dwg. FP-013A
OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8
Dwg. EP-010-3
NOTE
- There is an indeterminate resistance between logic ground and power ground. For proper operation, these terminals must be externally connected together.
CLOCK & SERIAL DATA IN
Number of Outputs ON (IOUT = 200 m A VDD = 12 V) 8 7 6 5 4 3 2 1
UCN5821A Max. Allowable Duty Cycle at Ambient...
