BU4021B Datasheet, PDF (3/5 Pages) Rohm – 8-bit static shift register

Standard ICs
BU4021B / BU4021BF
Switching characteristics (unless otherwise noted, VSS = 0V, Ta = 25°C, CL = 50pF)
Parameter
Symbol Min.
—
Output rise time
tTLH
—
—
—
Output fall time
tTHL
—
—
—
"L" to "H"
propagation delay time
tPLH
—
CLOCK to Q, P / S to Q
—
—
"H" to "L"
propagation delay time
tPHL
—
CLOCK to Q, P / S to Q
—
—
Setup time
tsu
—
—
Minimum clock
pulse width
—
tW (CLK)
—
—
Maximum clock
frequency
—
f (CLK) Max.
—
—
Maximum clock
rise / fall time
—
tr (CLK)
tf (CLK)
—
—
Minimum P / S
control pulse width
—
tw (P / S)
—
—
Input capacitance
CIN
—
Typ.
180
90
65
100
50
40
400
170
115
400
170
115
150
50
30
150
75
40
3.0
6.0
8.0
—
—
—
150
75
40
5
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
15
5.0
4.0
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
MHz
µs
ns
pF
VDD (V)
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
—
Conditions
—
—
—
—
—
—
—
—
—
—
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
—
—
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