HCTS299MS Datasheet, PDF (3/13 Pages) Intersil Corporation – Radiation Hardened 8-Bit Universal Shift Register; Three-State

FUNCTION
Reset (Clear)
Shift Right
Shift Left
Hold (Do Nothing)
Parallel Load
HCTS299MS
TRUTH TABLE
Register Operating Modes
INPUTS
REGISTER OUTPUTS
MR
CP
S0
S1
DS0 DS7 I/On
Q0
Q1 . . . Q6
Q7
L
X
X
X
X
X
X
L
L ... L
L
H
h
l
l
X
X
L
q0 . . . q5
q6
H
h
l
h
X
X
H
q0 . . . q5
Q6
H
l
h
X
l
X
q1
q2 . . . q7
L
H
l
h
X
h
X
q1
q2 . . . q7
H
H
l
l
X
X
X
q0
q1 . . . q6
q7
H
h
h
X
X
l
L
L ... L
L
H
h
h
X
X
h
H
H ... H
H
TRUTH TABLE
Three-State I/O Port Operating Mode
INPUTS
INPUTS/OUTPUTS
FUNCTION
OE1
OE2
S0
S1
Qn (REGISTER)
I/O0 . . . I/O7
Read Register
L
L
L
X
L
L
L
L
L
X
H
H
L
L
X
L
L
L
L
L
X
L
H
H
Load Register
X
X
H
H
Qn = I/On
I/On = Inputs
Disable I/O
H
X
X
X
X
Z
X
H
X
X
X
Z
H = HighVoltage Level
L = Low Voltage Level
X = Immaterial
Z = Output in High Impedance State
h = Input Voltage High One Setup Time Prior Clock Transition
l = Input voltage Low One Setup Time Prior Clock Transition
= Low-to-High Clock Transition
qn = Lower Case Letter Indicates the State of the Referenced Output One Setup Time Prior Clock Transition
Spec Number 518640
626