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BU4021B Datasheet(PDF) 3 Page - Rohm

Part No. BU4021B
Description  8-bit static shift register
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Maker  ROHM [Rohm]
Homepage  http://www.rohm.com
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BU4021B Datasheet(HTML) 3 Page - Rohm

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


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