M54HC166K1 ,RAD-HARD 8 BIT PISO SHIFT REGISTERM54HC166RAD-HARD 8 BIT PISO SHIFT REGISTER
M54HC166K1
RAD-HARD 8 BIT PISO SHIFT REGISTER
1/11March 2004 HIGH SPEED:
fMAX =63MHz (TYP.)at VCC =6V LOW POWER DISSIPATION:
ICC =4μA(MAX.)at TA=25°C HIGH NOISE IMMUNITY:NIH =VNIL= 28%VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE:OH|=IOL =4mA (MIN) BALANCED PROPAGATION DELAYS: PLH≅t PHL WIDE OPERATING VOLTAGE RANGE:CC (OPR)= 2Vto 6V PIN AND FUNCTION COMPATIBLE WITH SERIES 166 SPACE GRADE-1: ESA SCC QUALIFIED 50 krad QUALIFIED, 100 krad AVAILABLE ON
REQUEST NO SEL UNDER HIGH LET HEAVY IONS
IRRADIATION DEVICE FULLY COMPLIANT WITH
SCC-9306-043
DESCRIPTIONThe M54HC166is an high speed CMOS8 BIT
PISO SHIFT REGISTER fabricated with silicon
gateC2 MOS technology. consists of parallel or serial inputs anda
serial-out8bit shift register with gated clock inputs
and an overriding clear input. The parallel-inor
serial-in modes are controlledby the SHIFT/LOAD
input. When the SHIFT/LOAD inputis held high,
the serial data inputis enabled and the eight
flip-flops perform serial shifting with each clock
pulse; when held low, the parallel data inputs are
enabled and synchronous loading occurs on the
next clock pulse. Clockingis accomplishedon the
low-to-high level edgeof the clock pulse. The
CLOCK-INHIBIT input should be changedto the
high only while the clock inputis held high.A direct
clear input overridesall other inputs, including the
clock, and sets all flip-flopsto zero. Functional
details are shownin the truth table and the timing
chart. All inputs are equipped with protection
circuits against static discharge and transient
excess voltage.
M54HC166RAD-HARD8 BIT PISO SHIFT REGISTER
PIN CONNECTION
ORDER CODES
M54HC1662/11
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE: Don’t Care
a........h: The levelof steady input voltageat inputsa throughH respectively
M54HC1663/11
LOGIC DIAGRAMThis logic diagramhasnotbe usedto estimate propagation delays
TIMING CHART
M54HC1664/11
ABSOLUTE MAXIMUM RATINGSAbsoluteMaximum Ratingsare those values beyond which damagetothe device mayoccur.Functional operation under these conditionsis
not implied
RECOMMENDED OPERATING CONDITIONS
M54HC1665/11
SPECIFICATIONS
M54HC166
6/11 ELECTRICAL CHARACTERISTICS(CL=50 pF, Inputtr=tf =6ns)
CAPACITIVE CHARACTERISTICS CPD isdefinedasthe valueofthe IC’s internal equivalent capacitance whichis calculatedfrom theoperating current consumption without
load. (Referto Test Circuit). Average operating currentcanbe obtainedbythe following equation. ICC(opr) =CPD xVCC xfIN +ICC
