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Technical Note
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
5/17
www.rohm.com
2009.06 - Rev.A
2009 ROHM Co., Ltd. All rights reserved.
●Electrical Characteristics(BU4094BC)
DC Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃])
Parameter
Symbol
Limits
Unit
Condition
Fig.No
Min
Typ
Max
VDD[V]
Input ‘H’ voltage
VIH
3.5
-
V
5
-
7.0
-
10
11.0
-
15
Input ‘L’ voltage
VIL
-
1.5
V
5
-
3.0
10
-
4.0
15
Input ‘H’ current
IIH
-
0.3
μA
15
VIH=15[V]
-
Input ‘L’ current
IIL
-
-0.3
μA
15
VIL=0[V]
-
Output ‘H’ voltage
VOH
4.95
-
V
5
IO=0[mA]
21
9.95
-
10
14.95
-
15
Output ‘L’ voltage
VOL
-
0.05
V
5
IO=0[mA]
22
-
0.05
10
-
0.05
15
Output ‘H’ current
IOH
-0.44
-
mA
5
VOH=4.6[V]
21
-1.1
-
5
VOH=9.5[V]
-3.0
-
15
VOH=13.5[V]
Output ‘L’ current
IOL
0.44
-
mA
5
VOL=0.4[V]
22
1.1
-
10
VOL=0.5[V]
3.0
-
15
VOL=1.5[V]
Static supply current
IDD
-
5
μA
5
VI=VDD or GND
-
10
-
20
15
Switching Characteristics (Unless otherwise noted
VSS=0[V],Ta=25[℃],CL=50[pF])
Parameter
Symbol
Limits
Unit
Condition
Fig.No
Min
Typ
Max
VDD[V]
Output rising time
tTLH
-
100
200
ns
5
-
50
100
10
-
40
80
15
Output falling time
tTHL
-
100
200
ns
5
-
50
100
10
-
40
80
15
Propagation delay time
CLOCK→QS
tPLH
tPHL
-
350
600
ns
5
-
23
-
125
250
10
-
95
190
15
Propagation delay time
CLOCK→Q’S
tPLH
tPHL
-
230
460
ns
5
-
24
-
110
220
10
-
75
150
15
Propagation delay time
CLOCK→QN
tPLH
tPHL
-
420
840
ns
5
-
25
-
195
390
10
-
135
270
15
Propagation delay time
STROBE→QN
tPLH
tPHL
-
290
580
ns
5
-
26
-
145
290
10
-
100
200
15
3state
Propagation delay time
Output Enable→QN
tPHZ
tPZH
-
140
280
ns
5
RL=1[k
]
27
-
75
150
10
-
55
110
15
3 state
Propagation delay time
Output Enable→QN
tPLZ
tPZL
-
140
280
ns
5
RL=1[k
]
28
-
75
150
10
-
55
110
15
Minimum set up time
DATA→CLOCK
tsu
-
20
125
ns
5
-
29
-
855
10
-
635
15
Minimum hold time
CLOCK →DATA
tH
-
10
40
ns
5
-
30
-
10
20
10
-
515
15
Minimum clock pulse
width
tW(CLK)
-
100
200
ns
5
-
31
-
50
100
10
-
40
80
15
Maximum clock
rising/falling time
tr(CL)
tf(CL)
NO Limit
μs
5
-
10
15
Maximum clock
frequency
f CL
1.25
2.5
-
MHz
-
2.5
5
-
3.0
12.5
-
Minimum
strobe pulse width
TwH
-
100
200
ns
-
40
80
-
35
70
-
Input capacitance
CIN
-
5
-
pF
-