Rohm BU4028BFV-E2 High voltage cmos logic ics logic> Datasheet

General-purpose CMOS Logic IC Series (BU4S,BU4000B Series)
High Voltage CMOS Logic ICs
<Function Logic>
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
No.09050EAT04
●Description
BU4015B series ICs are 4-stage static shift registers, each consisting of 2 circuits. The D flip-flops of each stage share a
common reset input, enabling asynchronous reset at any time.
BU4021B series ICs are 8-bit static shift registers configured with 8 register cells, each of which has parallel input.
Control of the parallel/serial input (P/S) enables serial input/output with clock synchronization and well as parallel input/serial
output conversions.
BU4094BC series ICs are shift/store registers, each consisting of an 8-bit shift register and an 8-bit latch. Output can be held
in the data transfer mode because the data read into the shift register can be latched by the asynchronous strobe input,
The BU4538B IC is a monostable multivibrator that can be reset and retriggered from either edge of an input pulse.
A wide range of accurate output pulse widths is available because the output pulse width and accuracy are determined by
the external timing constants Cx an Rx.
The BU4028B IC is a decoder which converts BCD signals into decimal signals.
Of the 10 outputs (Q0 ~ Q9), those corresponding to the input codes A-D are set to “H”, while the others are set to “L”.
●Features
1) Low power consumption
2) Wide operating supply voltage range
3) High impedance
4) High fan out
5) L-TTL2 and LS-TTL1 inputs can be driven directly.
●Applications
BU4015B: serial / parallel data conversion and ring counter.
BU4021B: control circuits, timing circuits and as a general purpose register requiring high degree of noise tolerance.
BU4094BC: series/parallel data conversion and data receivers.
BU4538B: can obtain the output pulse amplitude with improved accuracy by external capacity and resistance.
BU4028B: code conversion, address decoding, memory selection control, demultiplexing or readout and decoding, etc.
●Lineup
High VoltageCMOS Logic
<Function Logic>
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2
4-bit register
circuits
BU4015B/
BU4015BF
(Dual 4-bit static shift register)
1
circuit
8-bit register
BU4021B/
BU4021BF
(8-bit static shift register)
2
circuits
8-bit register
BU4094BC/
BU4094BCF/
BU4094BCFV
(8-bit bus compatible shift/store register)
1
circuit
Monostable
multivibrator
BU4538B
(Dual high accuracy monostable multivibrator)
1
circuit
BCD
Decimal
BU4028B
(BCD to Decimal decoder)
1/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Absolute Maximum Ratings
Parameter
Symbol
Power Supply Voltage
Supply Current
Operating Temperature
Storage Temperature
Input Voltage
Maximum Junction Temperature
VDD
Iin
Topr
Tstg
VIN
Tjmax
BU4015B
BU4021B
Limit
BU4094BC BU4538B
-0.3 to 18
±10
-40 to 85
-55 to 150
-0.3 to VDD+0.3
150
BU4028B
Unit
V
mA
℃
℃
V
℃
●Recommended Operating Conditions
Parameter
Symbol
Operating Power Supply
Input Voltage
BU4015B
VDD
VIN
Limit
BU4021B
BU4094BC
BU4538B
3 to 16 (3 to 18V @BU4094BC)
0 to VDD
BU4028B
Unit
V
V
●Thermal Derating Curve
Power dissipation
Pd [mW]
1400
1250[mV] BU4***
620[mV] BU4***FV
380[mV] BU4***F
1200
1000
(*1)
(*2)
(*3)
(*)Below shows BU4***
BU4015B
BU4021B
BU4094BC
BU4538B
BU4028B
800
600
400
(*1)
10.0
200
0
85℃
25
50
75
100
Ambient temperature
125
Ta
150
175
[℃]
(*2)
5.0
(*3)
3.1
Unit
mW/℃
When used at Ta=25℃ or higher the value above is reduced per 1℃. Power Dissipation
is measured by using the sample mounted on a 70mm×70mm×1.6mm
FR4 glass-epoxy PCB (cupper area is less than 3%)
●Input / Output Equivalent Circuits
VDD
VDD
VDD
VDD
GND
GND
GND
GND
<Input>
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
<Output>
2/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics(BU4015B)
DC Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃])
Limits
Parameter
Symbol
Min
Typ
Max
3.5
-
-
Input ‘H’ voltage
VIH
7.0
-
-
11.0
-
-
-
-
1.5
Input ‘L’ voltage
VIL
-
-
3.0
-
-
4.0
Input ‘H’ current
IIH
-
-
0.3
Input ‘L’ current
IIL
-
-
-0.3
4.95
-
-
Output ‘H’ voltage
VOH
9.95
-
-
14.95
-
-
-
-
0.05
Output ‘L’ voltage
VOL
-
-
0.05
-
-
0.05
-0.16
-
-
Output ‘H’ current
IOH
-0.4
-
-
-1.2
-
-
0.44
-
-
Output ‘L’ current
IOL
1.1
-
-
3.0
-
-
-
-
20
Static supply current
IDD
-
-
40
-
-
80
Unit
V
V
μA
μA
V
V
mA
mA
μA
VDD[V]
5
10
15
5
10
15
15
15
5
10
15
5
10
15
5
5
15
5
10
15
5
10
15
Switching Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃],CL=50[pF])
Limits
Parameter
Symbol
Unit
Min
Typ
Max
VDD[V]
-
180
-
5
Output rising time
tTLH
-
90
-
ns
10
-
65
-
15
-
100
-
5
Output falling time
TTHL
-
50
-
ns
10
-
40
-
15
-
310
-
5
Propagation delay time
tPLH
-
125
-
10
ns
CLOCK, D→Q
tPHL
-
90
-
15
-
460
-
5
Propagation delay time
tPLH
-
180
-
10
ns
RESET→Q
tPHL
-
120
-
15
-
100
-
5
Set up time
Tsu
-
50
-
ns
10
-
40
-
15
-
185
-
5
Minimum clock pulse
-
85
-
10
tW(CLK)
ns
width
-
55
-
15
-
200
-
5
Minimum reset pulse
-
80
-
10
tW(RST)
ns
width
-
60
-
15
-
20
-
5
Maximum clock
f (CLK)
-
6.0
-
10
MHz
frequency
Max.
-
7.5
-
15
-
100
-
5
Maximum clock
tr(CLK)
-
40
-
10
μs
rising/falling time
tf(CLK)
-
15
-
15
Input capacitance
CIN
-
5
-
pF
-
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© 2009 ROHM Co., Ltd. All rights reserved.
3/17
Condition
Fig.No
-
-
-
-
VIH=15[V]
VIL=0[V]
-
-
IO=0[mA]
1
IO=0[mA]
2
VOH=4.6[V]
VOH=9.5[V]
VOH=13.5[V]
VOL=0.4[V]
VOL=0.5[V]
VOL=1.5[V]
VI=VSS or GND
1
2
-
Condition
Fig.No
-
-
-
-
-
3・4
-
5・6
-
7・8
-
9
-
10
-
-
-
-
-
-
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics(BU4021B)
DC Characteristics (Unless otherwise noted
Parameter
Symbol
Input ‘H’ voltage
VIH
Input ‘L’ voltage
VIL
Input ‘H’ current
Input ‘L’ current
IIH
IIL
Output ‘H’ voltage
VOH
Output ‘L’ voltage
VOL
Output ‘H’ current
IOH
Output ‘L’ current
IOL
Static supply current
IDD
VSS=0[V],Ta=25[℃])
Limits
Min
Typ
Max
3.5
-
-
7.0
-
-
11.0
-
-
-
-
1.5
-
-
3.0
-
-
4.0
-
-
0.3
-
-
-0.3
4.95
-
-
9.95
-
-
14.95
-
-
-
-
0.05
-
-
0.05
-
-
0.05
-0.16
-
-
-0.4
-
-
-1.2
-
-
0.44
-
-
1.1
-
-
3.0
-
-
-
-
20
-
-
40
-
-
80
Unit
V
V
μA
μA
V
V
mA
mA
μA
VDD[V]
5
10
15
5
10
15
15
15
5
10
15
5
10
15
5
5
15
5
10
15
5
10
15
Switching Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃],CL=50[pF])
Limits
Parameter
Symbol
Unit
Min
Typ
Max
VDD[V]
-
180
-
5
Output rising time
tTLH
-
90
-
ns
10
-
65
-
15
-
100
-
5
Output falling time
tTHL
-
50
-
ns
10
-
40
-
15
-
400
-
5
“L” to ”H”
-
170
-
10
Propagation delay time
tPLH
ns
CLOCK→Q P/S→Q
-
115
-
15
-
400
-
5
“H” to ”L”
-
170
-
10
Propagation delay time
tPHL
ns
CLOCK→Q P/S→Q
-
115
-
15
-
150
-
5
Set up time
tsu
-
50
-
ns
10
-
30
-
15
-
150
-
5
Minimum clock pulse
tW(CLK)
ns
-
75
-
10
width
-
40
-
15
-
3.0
-
5
Maximum clock
f (CLK)
MHz
-
6.0
-
10
frequency
Max.
-
8.0
-
15
-
-
15
5
Maximum clock
tr(CLK)
μs
-
-
5.0
10
rising/falling time
tf(CLK)
-
-
4.0
15
-
150
-
5
Minimum P/S
tw(P/S)
ns
-
75
-
10
Control pulse width
-
40
-
15
Input capacitance
CIN
-
5
-
pF
-
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© 2009 ROHM Co., Ltd. All rights reserved.
4/17
Condition
Fig.No
-
-
-
-
VIH=15[V]
VIL=0[V]
-
-
IO=0[mA]
11
IO=0[mA]
12
VOH=4.6[V]
VOH=9.5[V]
VOH=13.5[V]
VOL=0.4[V]
VOL=0.5[V]
VOL=1.5[V]
VI=VDD or GND
11
12
-
Condition
Fig.No
-
-
-
-
-
13・15
-
14・16
-
17
-
19
-
-
-
-
-
20
-
-
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics(BU4094BC)
DC Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃])
Limits
Parameter
Symbol
Min
Typ
Max
3.5
-
-
Input ‘H’ voltage
VIH
7.0
-
-
11.0
-
-
-
-
1.5
Input ‘L’ voltage
VIL
-
-
3.0
-
-
4.0
Input ‘H’ current
IIH
-
-
0.3
Input ‘L’ current
IIL
-
-
-0.3
4.95
-
-
Output ‘H’ voltage
VOH
9.95
-
-
14.95
-
-
-
-
0.05
Output ‘L’ voltage
VOL
-
-
0.05
-
-
0.05
-0.44
-
-
Output ‘H’ current
IOH
-1.1
-
-
-3.0
-
-
0.44
-
-
Output ‘L’ current
IOL
1.1
-
-
3.0
-
-
-
-
5
Static supply current
IDD
-
-
10
-
-
20
Unit
V
V
μA
μA
V
V
mA
mA
μA
VDD[V]
5
10
15
5
10
15
15
15
5
10
15
5
10
15
5
5
15
5
10
15
5
10
15
Switching Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃],CL=50[pF])
Limits
Parameter
Symbol
Unit
Min
Typ
Max
VDD[V]
-
100
200
5
Output rising time
tTLH
-
50
100
ns
10
-
40
80
15
-
100
200
5
Output falling time
tTHL
-
50
100
ns
10
-
40
80
15
-
350
600
5
Propagation delay time
tPLH
-
125
250
ns
10
CLOCK→QS
tPHL
-
95
190
15
-
230
460
5
Propagation delay time
tPLH
-
110
220
ns
10
CLOCK→Q’S
tPHL
-
75
150
15
-
420
840
5
Propagation delay time
tPLH
-
195
390
10
ns
CLOCK→QN
tPHL
-
135
270
15
-
290
580
5
Propagation delay time
tPLH
-
145
290
ns
10
STROBE→QN
tPHL
-
100
200
15
-
140
280
5
3state
tPHZ
Propagation delay time
-
75
150
ns
10
tPZH
Output Enable→QN
-
55
110
15
-
140
280
5
3 state
tPLZ
Propagation delay time
-
75
150
ns
10
tPZL
Output Enable→QN
-
55
110
15
-
20
125
5
Minimum set up time
tsu
-
8
55
ns
10
DATA→CLOCK
-
6
35
15
-
10
40
5
Minimum hold time
tH
-
10
20
ns
10
CLOCK →DATA
-
5
15
15
-
100
200
5
Minimum clock pulse
tW(CLK)
-
50
100
ns
10
width
-
40
80
15
5
Maximum clock
tr(CL)
NO Limit
μs
10
rising/falling time
tf(CL)
15
1.25
2.5
-
-
Maximum clock
f
CL
2.5
5
-
MHz
-
frequency
3.0
12.5
-
-
-
100
200
-
Minimum
TwH
-
40
80
ns
-
strobe pulse width
-
35
70
-
Input capacitance
CIN
-
5
-
pF
-
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© 2009 ROHM Co., Ltd. All rights reserved.
5/17
Condition
Fig.No
-
-
-
-
VIH=15[V]
VIL=0[V]
-
-
IO=0[mA]
21
IO=0[mA]
22
VOH=4.6[V]
VOH=9.5[V]
VOH=13.5[V]
VOL=0.4[V]
VOL=0.5[V]
VOL=1.5[V]
21
22
VI=VDD or GND
-
Condition
Fig.No
-
-
-
-
-
23
-
24
-
25
-
26
RL=1[kΩ]
27
RL=1[kΩ]
28
-
29
-
30
-
31
-
-
-
-
-
-
-
-
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics(BU4538B)
DC Characteristics (Unless otherwise noted
Parameter
Symbol
Input ‘H’ voltage
VIH
Input ‘L’ voltage
VIL
Input ‘H’ current
Input ‘L’ current
IIH
IIL
Output ‘H’ voltage
VOH
Output ‘L’ voltage
VOL
Output ‘H’ current
IOH
Output ‘L’ current
IOL
Static supply current
IDD
VSS=0[V],Ta=25[℃])
Limits
Min
Typ
Max
3.5
-
-
7.0
-
-
11.0
-
-
-
-
1.5
-
-
3.0
-
-
4.0
-
-
0.3
-
-
-0.3
4.95
-
-
9.95
-
-
14.95
-
-
-
-
0.05
-
-
0.05
-
-
0.05
-0.16
-
-
-0.4
-
-
-1.2
-
-
0.44
-
-
1.1
-
-
3.0
-
-
-
-
20
-
-
40
-
-
80
Unit
V
V
μA
μA
V
V
mA
mA
μA
VDD[V]
5
10
15
5
10
15
15
15
5
10
15
5
10
15
5
5
15
5
10
15
5
10
15
Switching Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃],CL=50[pF])
Limits
Parameter
Symbol
Unit
Min
Typ
Max
VDD[V]
Output rising time
Output falling time
Propagation delay time
A,B→Q,Q
Propagation delay time
CD→Q,Q
Minimum input pulse
width
Output pulse width 1
Output pulse width 2
Minimum trigger time
Input capacitance
tTLH
tTHL
-
100
-
-
50
-
10
-
40
-
15
-
100
-
5
-
50
-
-
40
-
ns
10
300
-
150
-
-
100
-
15
tPLH
tPHL
-
250
-
5
-
125
-
-
95
-
-
50
-
tWIN
-
30
-
tWOUT2
trr
CIN
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© 2009 ROHM Co., Ltd. All rights reserved.
-
-
-
VIH=15[V]
VIL=0[V]
-
-
IO=0[mA]
-
IO=0[mA]
-
VOH=4.6[V]
VOH=9.5[V]
VOH=13.5[V]
VOL=0.4[V]
VOL=0.5[V]
VOL=1.5[V]
VI=VDD or GND
-
-
-
Condition
Fig.No
-
-
-
-
-
32・33
-
34・35
-
36
5
ns
ns
10
10
15
5
ns
10
-
25
-
15
185
200
215
5
185
200
215
185
200
215
8.8
9.4
10.0
8.8
9.4
10.0
8.8
9.4
10.0
15
-
0
-
5
-
0
-
-
0
-
-
5
-
6/17
-
15
-
tWOUT1
Fig.No
5
ns
-
tPLH
tPHL
Condition
μs
10
15
5
ms
ns
10
10
CX=2000[pF]
RX=100[kΩ]
38
CX=0.1[uF]
RX=100[kΩ]
39
-
-
-
-
15
pF
-
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
●Electrical Characteristics(BU4028B)
DC Characteristics (Unless otherwise noted
Parameter
Symbol
Input ‘H’ voltage
VIH
Input ‘L’ voltage
VIL
Input ‘H’ current
Input ‘L’ current
IIH
IIL
Output ‘H’ voltage
VOH
Output ‘L’ voltage
VOL
Output ‘H’ current
IOH
Output ‘L’ current
IOL
Static supply current
IDD
Technical Note
VSS=0[V],Ta=25[℃])
Limits
Min
Typ
Max
3.5
-
-
7.0
-
-
11.0
-
-
-
-
1.5
-
-
3.0
-
-
4.0
-
-
0.3
-
-
-0.3
4.95
-
-
9.95
-
-
14.95
-
-
-
-
0.05
-
-
0.05
-
-
0.05
-0.16
-
-
-0.4
-
-
-1.2
-
-
0.44
-
-
1.1
-
-
3.0
-
-
-
-
1
-
-
2
-
-
4
Unit
V
V
μA
μA
V
V
mA
mA
μA
VDD[V]
5
10
15
5
10
15
15
15
5
10
15
5
10
15
5
5
15
5
10
15
5
10
15
Switching Characteristics (Unless otherwise noted VSS=0[V],Ta=25[℃],CL=50[pF])
Limits
Parameter
Symbol
Unit
Min
Typ
Max
VDD[V]
-
180
-
5
Output rising time
tTLH
-
90
-
ns
10
-
65
-
15
-
100
-
5
Output falling time
tTHL
-
50
-
ns
10
-
40
-
15
-
300
-
5
“L” to ”H”
tPLH
ns
-
130
-
10
Propagation delay time
-
90
-
15
-
300
-
5
“H” to ”L”
tPHL
ns
-
130
-
10
Propagation delay time
-
90
-
15
Input capacitance
CIN
-
5
-
pF
-
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© 2009 ROHM Co., Ltd. All rights reserved.
7/17
Condition
Fig.No
-
-
-
-
VIH=15[V]
VIL=0[V]
-
-
IO=0[mA]
40
IO=0[mA]
41
VOH=4.6[V]
VOH=9.5[V]
VOH=13.5[V]
VOL=0.4[V]
VOL=0.5[V]
VOL=1.5[V]
VI=VDD or GND
40
41
-
Condition
Fig.No
-
42
-
43
-
44
-
45
-
-
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics Curves(BU4015B)
600
50
50
40
VDD=15[V]
-40[℃]
25[℃]
85[℃]
VDD=10[V]
-40[℃]
25[℃]
85[℃]
-40[℃]
20
10
25[℃]
40
VDD=15[V]
-40[℃]
30
25[℃]
85[℃]
20
-40[℃]
25[℃] VDD=10[V]
85[℃]
10
-40[℃]
25[℃] VDD=5[V]
85[℃]
85[℃]
VDD=5[V]
0
0
0
5
10
15
0
20
5
Propagation Delay Time (RESET→Q) [ns]
[BU4015B/F]
VDD=3[V]
400
Operating Temperature Range
VDD=5[V]
200
VDD=10[V]
100
VDD=16[V]
0
-25
0
25
10
15
50
75
600
Operating Temperature Range
300
VDD=5[V]
200
VDD=10[V]
100
VDD=16[V]
0
-50
-25
0
25
50
75
75
VDD=5[V]
50
VDD=10[V]
80
60
500
50
75
Operating Temperature Range
400
VDD=5[V]
300
200
VDD=10[V]
100
VDD=16[V]
0
-50
-25
25
50
75
100
Fig.6 Propagation delay tPHL
RESET→Q
[BU4015B/F]
VDD=5[V]
40
20
VDD=10[V]
100
0
Ambient Temperature [℃]
VDD=3[V]
VDD=16[V]
0
25
VDD=3[V]
600
100
Operating Temperature Range
VDD=16[V]
0
100
500
25
0
75
[BU4015B/F]
Hold Time (CLK→Q) [ns]
100
50
[BU4015B/F]
Fig.5 Propagation delay tPLH
RESET→Q
Operating Temperature Range
VDD=3[V]
25
700
Ambient Temperature [℃]
150
0
800
100
-25
-25
Fig.3 Propagation delay tPLH
CLK→Q
VDD=3[V]
[BU4015B/F]
Setup Time (Q→CLK) [ns]
VDD=16[V]
Ambient Temperature [℃]
400
100
200
-50
VDD=10[V]
100
-50
500
Fig.4 Propagation delay tPHL
CLK→Q
125
VDD=5[V]
200
20
[BU4015B/F]
Ambient Temperature [℃]
175
Operating Temperature Range
300
Minimum Clock Pulse Width [ns]
Propagation Delay Time (CLK→Q) [ns]
600
-50
VDD=3[V]
400
Fig.2 Output sink
current-voltage
Fig.1 Output source
current-voltage
300
500
Output Voltage [V]
Output Voltage [V]
500
[BU4015B/F]
0
Propagation Delay Time (RESET→Q) [ns]
30
Propagation Delay Time (CLK→Q) [ns]
[BU4015B/F]
Output Sink Current [mA]
Output Source Current [mA]
[BU4015B/F]
-50
-25
0
25
50
75
Ambient Temperature [℃]
Ambient Temperature [℃]
Fig.7Set up time tsu
Q→CLK
Fig.8 Hold time th
CLK→Q
Operating Temperature Range
400
VDD=3[V]
300
200
VDD=5[V]
100
VDD=10[V]
VDD=16[V]
0
-50
100
-25
0
25
50
75
100
Ambient Temperature [℃]
Fig.9 Minimum CLK pulse width
200
Minimum Reset Pulse Width [ns]
[BU4015B/F]
175
○Switching characteristics
Operating Temperature Range
20[ns]
150
VDD=3[V]
125
20[ns]
D (入力データ)
(Input data)
100
50%
10%
tsu
75
VDD=5[V]
VDD=10[V]
20[ns]
tPLH
0
-25
0
25
50
75
100
Q0(Output
(出力データ)
Q0
data)
Ambient Temperature [℃]
tTLH
Fig.10Minimum RESET
pulse width
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© 2009 ROHM Co., Ltd. All rights reserved.
50%
10%
8/17
th
GND(VSS)
VDD
tWH
25
VDD=16[V]
20[ns]
90%
50%
10%
CLOCK
50
-50
VDD
90%
GND(VSS)
tWL
tPHL
90%
VOH
VOL
tTHL
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics Curves(BU4021B)
50
40
VDD=15[V]
-40[℃]
25[℃]
85[℃]
20
VDD=10[V]
-40[℃]
25[℃]
85[℃]
10
-40[℃]
25[℃]
85[℃]
VDD=5[V]
0
0
5
40
VDD=15[V]
-40[℃]
30
25[℃]
85[℃]
20
-40[℃]
25[℃] VDD=10[V]
85[℃]
10
-40[℃]
25[℃] VDD=5[V]
85[℃]
0
10
15
20
0
5
Output Voltage [V]
VDD=3[V]
Operating Temperature Range
400
VDD=5[V]
300
200
VDD=10[V]
100
VDD=16[V]
0
-25
0
25
50
75
15
20
-50
VDD=3[V]
600
500
Operating Temperature Range
400
VDD=5[V]
300
200
VDD=10[V]
100
VDD=16[V]
VDD=3[V]
100
75
VDD=5[V]
25
VDD=10[V]
VDD=16[V]
-25
0
25
50
75
-25
0
25
50
75
100
140
VDD=3[V]
100
80
VDD=5[V]
60
40
VDD=10[V]
20
VDD=16[V]
-25
0
25
120
100
CLOCK
or
P/S
80
VDD=5[V]
40
20
VDD=16[V]
-25
0
25
50
75
VDD=5[V]
300
200
VDD=10[V]
100
VDD=16[V]
-25
0
25
50
75
100
[BU4021B/F]
VDD=3[V]
160
140
Operating Temperature Range
120
100
VDD=5[V]
80
60
VDD=10[V]
40
VDD=16[V]
20
75
-50
100
-25
0
25
50
75
100
Ambient Temperature [℃]
Fig.19 Minimum CLK
pulse width
20[ns]
tsu
10%
tf
th
GND(VSS)
VDD
GND(VSS)
50%
10%
tTLH
100
tr
tW
90%
50%
tPLH
OUTPUT
VDD
90%
50%
10%
0
-50
50
20[ns]
VDD=10[V]
Operating Temperature Range
400
○Switching characteristics
Parallel Data
or
Serial Data
VDD=3[V]
60
500
0
-50
Operating Temperature Range
140
VDD=3[V]
600
180
120
Fig.18 Hold time th
CLK→Q
160
[BU4021B/F]
Fig.16 Propagation delay tPHL
P/S→QS
Operating Temperature Range
160
Fig.17 Set up time tsu
Q→CLK
[BU4021B/F]
100
200
Ambient Temperature [℃]
180
75
Ambient Temperature [℃]
[BU4021B/F]
180
Ambient Temperature [℃]
200
50
700
-50
100
0
-50
25
0
Minimum CLK Pulse Width [ns]
Operating Temperature Range
150
0
Fig.13 Propagation delay tPLH
CLK→QS
200
50
-25
Ambient Temperature [℃]
Fig.15 Propagation delay tPLH
P/S→QS
[BU4021B/F]
125
VDD=16[V]
800
-50
Hold Time (CLK→DATA) [ns]
Setup Time (DATA→CLK) [ns]
100
Ambient Temperature [℃]
0
Hold Time (CLK→DATA) [ns]
10
700
100
Fig.14 Propagation delay tPHL
CLK→QS
175
VDD=10[V]
200
0
[BU4021B/F]
Ambient Temperature [℃]
200
VDD=5[V]
300
0
-50
Operating Temperature Range
400
800
Propagation Delay Time (P/S→QS) [ns]
Propagation Delay Time (CLK→QS) [ns]
700
500
500
Fig.12 Output sink
current-voltage
[BU4021B/F]
600
VDD=3[V]
600
Output Voltage [V]
Fig.11 Output source
current-voltage
800
[BU4021B/F]
700
Propagation Delay Time (P/S→QS) [ns]
30
800
[BU4021B/F]
Propagation Delay Time (CLK→QS) [ns]
[BU4021B/F]
Output Sink Current [mA]
Output Source Current [mA]
50
90%
tPHL
VOH
VOL
tTHL
Ambient Temperature [℃]
Fig.20 Minimum P/S
pulse width
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© 2009 ROHM Co., Ltd. All rights reserved.
9/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics Curves(BU4094BC)
50
40
VDD=15[V]
-40[℃]
30
25[℃]
85[℃]
20
VDD=10[V]
-40[℃]
25[℃]
-40[℃]
85[℃]
25[℃]
10
40
VDD=15[V]
-40[℃]
25[℃]
30
85[℃]
-40[℃]
20
25[℃] VDD=10[V]
85[℃]
10
-40[℃]
25[℃] VDD=5[V]
85[℃]
85[℃]
VDD=5[V]
10
15
0
20
5
Fig.21 Output source
current-voltage
300
[BU4094BC/F/FV]
tPHL
VDD=3[V]
tPLH
VDD=5[V]
VDD=3[V]
VDD=10[V]
VDD=5[V]
VDD=16[V]
VDD=10[V]
VDD=16[V]
200
100
Operating Temperature Range
0
-50
-25
0
25
50
75
500
400
VDD=3[V]
VDD=5[V]
VDD=10[V]
VDD=16[V]
200
100
Operating Temperature Range
0
-50
VDD=10[V]
VDD=16[V]
50
Operating Temperature Range
0
-25
0
25
50
75
100
Propagation Delay Time (Output Enable →QN)
[ns]
Propagation Delay Time (Output Enable→QN)
[ns]
VDD=5[V]
VDD=5[V]
-50
25
150
Minimum CLK Pulse Width [ns]
150
VDD=3[V]
100
VDD=5[V]
VDD=10[V]
50
75
100
tPLH
tPHL
VDD=3[V]
VDD=3[V]
VDD=5[V]
VDD=5[V]
VDD=10[V]
VDD=16[V]
400
300
VDD=10[V]
VDD=16[V]
200
100
Operating Temperature Range
0
-50
100
-25
0
25
50
75
100
Ambient Temperature [℃]
Fig.26 Propagation delay
STROBE→QN
[BU4094BC/F/FV]
[BU4094BC/F/FV]
tPHL
VDD=3[V]
VDD=5[V]
VDD=3[V]
VDD=5[V]
tPLH
VDD=10[V]
VDD=16[V]
VDD=10[V]
VDD=16[V]
100
50
Operating Temperature Range
Operating Temperature Range
40
30
VDD=3[V]
20
VDD=5[V]
10
VDD=10[V]
VDD=16[V]
0
0
-50
-25
0
25
200
Operating Temperature Range
25
50
200
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature [℃]
[BU4094BC/F/FV]
[BU4094BC/F/FV]
50
75
Fig.28 Propagation delay tPLZ
Output Enable→QN
Fig.27 Propagation delay tPHZ
Output Enable→QN
200
50
Ambient Temperature [℃]
Ambient Temperature [℃]
Hold Time (CLK→DATA) [ns]
0
0
[BU4094BC/F/FV]
Fig.25 Propagation delay
CLK→QN
tPLH
VDD=3[V]
VDD=10[V]
VDD=16[V]
-25
-25
500
Ambient Temperature [℃]
[BU4094BC/F/FV]
100
-50
Fig.23 Propagation delay CLK→QS
VDD=3[V]
VDD=5[V]
VDD=10[V]
VDD=16[V]
tPHL
300
100
200
VDD=3[V]
100
Ambient Temperature [℃]
tPLH
Fig.24 Propagation delay
CLK→Q’S
150
200
20
[BU4094BC/F/FV]
Ambient Temperature [℃]
tPHL
15
Fig.22 Output sink
current-voltage
Propagation Delay Time (CLK→QN) [ns]
Propagation Delay Time (CLK→Q'S) [ns]
500
10
Output Voltage [V]
Output Voltage [V]
Propagation Delay Time (STROBE→QN) [ns]
5
300
0
Setup Time (DATA→CLK) [ns]
0
400
tPLH
[BU4094BC/F/FV]
VDD=3[V]
tPHL
VDD=5[V]
VDD=3[V]
VDD=10[V]
VDD=5[V]
VDD=16[V]
VDD=10[V]
VDD=16[V]
Operating Temperature Range
0
0
400
500
[BU4094BC/F/FV]
Propagation Delay (CLK →Qs) [ns]
[BU4094BC/F/FV]
Output Sink Current [mA]
Output Source Current [mA]
50
Operating Temperature Range
150
Fig.29 Set up time tsu
DATA→CLK
○Switching characteristics are
stated on page 14.
VDD=3[V]
VDD=5[V]
100
VDD=10[V]
VDD=16[V]
50
VDD=16[V]
0
0
-50
-25
0
25
50
75
100
Ambient Temperature [℃]
Fig.30 Hold time tH
CLK→DATA
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© 2009 ROHM Co., Ltd. All rights reserved.
-50
-25
0
25
50
75
100
Ambient Temperature [℃]
Fig.31 Minimum CLK pulse width
tW(CLK)
10/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Electrical Characteristics Curves(BU4538B)
1000
Operating Temperature Range
800
VDD=3[V]
600
400
VDD=5[V]
200
VDD=10[V]
800
VDD=3[V]
600
-50
-25
0
25
50
75
VDD=5[V]
VDD=10[V]
200
VDD=16[V]
-25
25
50
75
600
VDD=3[V]
400
300
VDD=5[V]
200
200
VDD=10[V]
100
-25
0
25
50
75
5
120
VDD=3[V]
100
80
VDD=5[V]
60
40
VDD=10[V]
VDD=16[V]
-25
Normalized Pulse Width Change [%]
-1
VDD=10[V]
-2
VDD=16[V]
-3
Operating Voltage Range
-4
100
[BU4538B]
140
VDD=3[V]
120
100
80
VDD=5[V]
60
40
VDD=10[V]
20
VDD=16[V]
25
50
75
-50
100
-25
0
25
50
75
100
Ambient Temperature [℃]
Fig.37 Minimum RESET pulse width
tRESET
5
VDD=5[V]
0
0
Fig.36 Minimum input pulse width
tWIN
VDD=3[V]
1
75
Operating Temperature Range
160
Ambient Temperature [℃]
3
2
50
0
-50
[BU4538B]
4
25
180
140
Ambient Temperature [℃]
Fig.35 Propagation delay tPLH
CD→Q
0
Fig.34 Propagation delay tPHL
CD→Q
Operating Temperature Range
160
100
-25
Ambient Temperature [℃]
0
-50
VDD=16[V]
200
20
VDD=16[V]
VDD=10[V]
100
-50
Minimum RESET Pulse Width [ns]
Minimum Input Pulse Width [ns]
Operating Temperature Range
VDD=5[V]
300
100
[BU4538B]
180
0
Normalized Pulse Width Change [%]
0
200
[BU4538B]
500
Operating Temperature Range
400
Fig.33 Propagation delay tPHL
A→Q
800
700
500
Ambient Temperature [℃]
Fig.32 Propagation delay tPLH
A→Q
VDD=3[V]
600
0
-50
100
[BU4538B]
700
0
Ambient Temperature [℃]
Propagation Delay Time (CD→Q) [ns]
Operating Temperature Range
400
VDD=16[V]
0
800
[BU4538B]
Propagation Delay Time (CD→Q) [ns]
[BU4538B]
Propagation Delay Time (A→Q) [ns]
Propagation Delay Time (A→Q) [ns]
1000
[BU4538B]
4
3
VDD=16[V]
VDD=10[V]
2
1
0
-1
VDD=3[V]
-2
VDD=5[V]
-3
Operating Voltage Range
-4
-5
-5
-50
-25
0
25
50
75
-50
100
-25
0
25
50
75
100
Ambient Temperature [℃]
Ambient Temperature [℃]
Fig.38 Output pulse width tWOUT1
(CX=2000[pF],RX=100[kΩ])
Fig.39 Output pulse width tWOUT2
(CX=0.1[μF],RX=100[kΩ])
20[ns]
○ Switching Characteristics
20[ns]
90%
50%
A
50%
10%
20[ns]
20[ns]
B
90%
50%
10%
20[ns]
20[ns]
90%
90%
50%
CD
tPLH
Q
50%
tPLH
90%
50%
tPLH
tPLH
50%
50%
tTLH
10%
90%
10%
trr
tPHL
50%
10%
10%
tWOUT
Q
tTHL
90%
50%
tPLH
50%
10%
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© 2009 ROHM Co., Ltd. All rights reserved.
11/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Reference data(BU4028B)
50
50
[BU4028B]
400
[BU4028B]
[BU4028B]
VDD=15[V]
-40[℃]
25[℃]
30
85[℃]
20
VDD=10[V]
-40[℃]
25[℃]
-40[℃]
85[℃]
25[℃]
85[℃]
VDD=5[V]
0
0
5
VDD=15[V]
-40[℃]
30
25[℃]
85[℃]
20
-40[℃]
25[℃] VDD=10[V]
85[℃]
10
15
0
20
5
150
VDD=10[V]
100
Operating Voltage Range
0
10
15
20
-50
-25
0
25
50
75
100
Output Voltage [V]
Ambient Temperature [℃]
Fig.40 Output source
current-voltage
Fig.41 Output sink
current-voltage
Fig.42 Propagation delay tTLH
500
500
350
Propagation Delay Time [ns]
VDD=3[V]
300
250
Operating Temperature Range
200
VDD=5[V]
150
100
VDD=10[V]
50
VDD=3[V]
400
Operating Temperature Range
200
VDD=5[V]
VDD=10[V]
100
VDD=16[V]
VDD=16[V]
25
50
75
100
300
Operating Temperature Range
200
VDD=5[V]
VDD=10[V]
100
VDD=16[V]
0
0
0
VDD=3[V]
400
300
0
-25
[BU4028B]
[BU4028B]
[BU4028B]
Output Fall Time [ns]
VDD=5[V]
200
Output Voltage [V]
400
-50
250
VDD=16[V]
0
10
VDD=3[V]
300
50
-40[℃]
25[℃] VDD=5[V]
85[℃]
Propagation Delay Time [ns]
10
40
Output Rise Time [ns]
40
Output Sink Current [mA]
Output Sourace Current [mA]
350
-50
-25
Ambient Temperature [℃]
0
25
50
75
-50
100
0
25
50
75
100
Fig.45 Propagation delay tPHL
Fig.44 Propagation delay tPLH
Fig.43 Propagation delay tTHL
-25
Ambient Temperature [℃]
Ambient Temperature [℃]
(*) Switching characteristics is shown in P15.
●Description of BU4015B series model
Function:Dual 4-bit static shift register
1) Description of operation
Dual 4-bit static shift register of BU4015B is configured with 2 independent serial input/parallel output registers of the same 4-state.
Each register is provided with an independent clock and reset input having one series data input. Register state is the D
type master/slave flip-flop. Data is shifted to the next stage during the rise time of the clock. Each register can be cleared
by addition of “H” level to reset.
PIN arrangement
Q0
CLOCK B
1
16
VDD
Q3B
2
15
D8
Q2B
3
14
RESET B
Q1A
4
13
Q0B
Q0A
5
12
Q1B
RESET A
6
11
Q2B
DA
7
10
Q3A
VSS
8
9
CLOCK A
CL
R
D
Q3 Q2 Q1 Q0
D
D
CL
CLOCK
R
D
R
Q1
Q
D
Q
CL
R
Q2
Q
D
Q
CL
R
Q3
Q
D
Q
Q
CL
R
Q
RESET
Q0 Q1 Q2 Q3
CL
PIN description
PIN No. Symbol
Block diagram
Truth table
CLOCK
X
D
RESET
Q0
Q1
Q2
L
L
L
Q0
Q1
Q3
Q2
H
L
H
Q0
Q1
Q2
X
L
L
X
H
L
No Change
L
L
L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I/O
CLOCKB I
Q3B
O
Q2A
O
Q1A
O
Q0A
O
RESETA I
DA
I
VSS
―
CLOCKA I
Q3A
O
Q2B
O
Q1B
O
Q0B
O
RESETB I
DB
I
VDD
―
Function
Clock input (CHB)
Output 3 (CHB)
Output 2 (CHA)
Output 1 (CHB)
Output 0 (CHA)
Reset input (CHA)
Data input (CHA)
Power supply(-)
Clock input (CHA)
Output 3 (CHA)
Output 2 (CHB)
Output 1 (CHB)
Output 0 (CHB)
Reset input (CHB)
Data input (CHB)
Power supply(+)
X:Don't Care
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© 2009 ROHM Co., Ltd. All rights reserved.
12/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Description of BU4021B series model
Function: 8-stage static shift register
1) Description of operation
BU4021B is an 8-bit static shift register capable of parallel input/series output and series input/series output. In parallel
operation, DS (data) being asynchronous with the clock is inputted into each F/F and obtained at output.
In series operation, DS (data) is triggered by clock.
When P/S input level is “H”, parallel operation is effective, and when P/S input level is “L”, series operation is effective.
PIN arrangement
P8
1
Q6
2
P8
3
P4
4
P3
5
P2
6
P1
7
VSS
8
16
VDD
15
P7
P7
Q6
Q8
Block diagram
P6
Q8
Q5
P4
Q7
P3
DS
P2
CLOCK
P1
P1
P2
P3
P4
P5
P6
P7
P8
D Q
D Q
D Q
D Q
D Q
C
C
C
C
D Q
CQ
D Q
CQ
D
C
P/S
D
CLOCK
14
P6
13
P5
12
Q7
11
DS
10
CLOCK
9
P/S
P/S
PIN description
PIN No. Symbol
Q
CQ
Q
Q
Truth table
CLOCK
X
D
RESET
Q0
Q1
Q2
Q3
DS
P/S
Dm
L
L
L
Q0
Q1
Q2
CLOCK
X
H
L
L
H
L
H
Q0
Q1
Q2
X
H
H
H
X
L
X
H
X:Don't Care
*:Q6,Q7,Q8: outside
*:Q6,Q7,Q8は外部
No Change
L
L
L
Qm*
L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P8
Q6
Q8
P4
P3
P2
P1
VSS
P/S
CLOCK
DS
Q7
P5
P6
P7
VDD
I/O
I
O
O
I
I
I
I
―
I
I
I
O
I
I
I
―
Function
Parallel data input 8
Output 6
Output 8
Parallel data input 4
Parallel data input 3
Parallel data input 2
Parallel data input 1
Power supply(-)
Parallel/Serial
Clock input
Serial data input
Output 7
Parallel data input 5
Parallel data input 6
Parallel data input 7
Power supply (+)
X:Don't Care
●Description of BU4094BC series model
Function: Dual 4-bit static shift register
1) Description of operation
BU4094BC is an 8-stage shift/store register provided in each stage with a data latch with 3-state output. Data read into
shift register is read into the latch during the fall time of asynchronous STROBE input, and in the data transfer mode,
output can be held. Data is passed through the latch and outputted when the STROBE is in “H” level. Because the parallel
output becomes high impedance when the OUTPUT ENABLE terminal is set to “L” level by 3-state, the parallel output can
be connected directly with the 8-bit pass line.
PIN arrangement
STROBE
16
VDD
OUTPUT
ENABLE
15
OUTPUT
ENABLE
Q5
14
Q5
Q1
Q6
13
Q6
Q2
5
Q2
Q7
12
Q7
Q3
6
Q3
Q8
11
Q8
Q4
7
Q4
Q'S
10
Q'S
VSS
8
QS
9
QS
1
STROBE
SERIAL
IN
2
SERIA
IN
CLOCK
3
Q1
4
CLOCK
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© 2009 ROHM Co., Ltd. All rights reserved.
PIN description
PIN No.
Symbol
1
STROBE
2
SERIALIN
3
CLOCK
4
Q1
5
Q2
6
Q3
7
Q4
8
VSS
9
QS
10
Q’S
11
Q8
12
Q7
13
Q6
14
Q5
15
ENABLE
16
VDD
13/17
I/O
I
I
I
O
O
O
O
―
O
O
O
O
O
O
I
―
Function
Latch input
Data input
Clock input
Parallel data input Q1
Parallel data input Q2
Parallel data input Q3
Parallel data input Q4
Power supply(-)
Serial data output QS
Serial data output Q’S
Parallel data output Q8
Parallel data output Q7
Parallel data output Q6
Parallel data output Q5
Output enable
Power supply (+)
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Block diagram
Technical Note
Truth table
SERIAL IN
QS
8 STAGE
SHIFT REGISTER
CLOCK
Q'S
CLOCK
SERIAL
OUTPUT
STROBE
OUTPUT
SERIAL
STROBE
IN
ENABLE
8 BIT
LACTH
OUTPUT
ENABLE
3 STATE
OUTPUTS
Q1
Parallel Output
Serial Output
Q1
Qn
Qs
Q's
H
H
L
L
Qn-1
Q7
NC
H
H
H
H
Qn-1
Q7
NC
H
L
X
NC
NC
Q7
NC
L
X
X
Z
Z
Q7
NC
H
X
X
NC
NC
NC
Qs
H
H
X
Z
Z
NC
Qs
Q8
PARALLEL OUTPUTS
○ Switching characteristics
tr
tWH
CLOCK
50%
tf
90%
50%
50%
10%
DATA
tsu
th
tWL
STROBE
OUTPUT
ENABLE
50%
tPLH
Q1~Q7
50%
10%
90%
tTLH
QS
Q’S
QS'
tPLH
tPHL
90%
tPZL
tPHZ
50%
10%
tTHL
50%
tPZH
50%
90%
tPLZ
90%
10%
10%
tPHL
tpLH
50%
50%
tpLH
tpHL
50%
50%
●Description of BU4538B series model
Function: Dual high accuracy monostable multivibrator
1) Description of operation
BU4538B is a re-triggerable monostable multi vibrator. Triggering is possible from either edge of the rise time and fall time
of input pulse. Output pulse setting is determined by the time constant (Rx · Cx) of external Rx and Cx.
Recommended output pulse amplitude is 200[μs]~1[s].
(Cautions on use: In case of system power down, etc., electric charge accumulated in the capacity Cx is discharged to the
VDD terminal through protective diode of 2 pins of 14 pins. When the electric current due to accumulated electric charge
exceeds 10[mA], IC may be destructed. When a large capacity Cx is used, electric current flowing into the IC can be
restricted by inserting the diode Dx.)
PIN description
PIN No. Symbol I/O
Function
PIN arrangement
Block diagram
Passive component
1
T1A
―
T1A
connection pin 1(CHA)
VDD
VDD
VDD
Passive component
T2A
T1B
2
T2A
―
DX
RX
connection
pin 2(CHA)
CHA
CDA
T2B
3
CDA
I
Reset input (CHA)
R
Q
Q
CX
AA
CDB
Vref1
Vref2
Output
Enable
Enable
4
AA
I
Input A(CHA)
Latch
Q
BA
S
Q
AB
5
BA
I
Input B(CHA)
A
Control
QA
CHB
BB
6
QA
O
Output Q(CHA)
B
QA
7
QAB
O
Output
QB(CHA)
QB
Q
Q
Reset Latch
CD
S
R
8
VSS
―
Power supply(-)
9 QB
VSS
9
QBB
O
Output QB(CHB)
10
QB
O
Output Q(CHB)
Truth table
11
BB
I
Input B(CHB)
12
AB
I
Input A(CHB)
INPUT
OUTPUT
13
CCB
I
Reset input (CHB)
A
B
CD
Q
Q
Passive component
H
H
14
T2B
―
connection pin 1(CHB)
L
L
H
H
H
L
H
H
Passive component
15
T1B
―
L
H
connection pin 2(CHB)
X
L
H
L
H
16
VDD
―
Power supply (+)
1
16
BA
2
3
CD
Q
15
Q
T1
T2
4
14
13
5
12
BA
6
CD
Q
7
Q
T1
T2
11
10
8
X:Don't Care
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
14/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Description of BU4028B series model
Function: BCD to decimal decoder
1) Description of operation
BU4028B is a decoder to convert BCD signals into decimal signals. Out of 10 outputs of Q0~Q9, output applicable for the
input code of A~D becomes “H” level and all other outputs become “L” level. When the input of D is made to be inhibit input
by using 3 inputs of A~C, this product can be used as a 1-OF-8 decoder.
PIN arrangement
Q4
1
Block diagram
16
Q4
Q0
VDD
Q1
Q2
2
Q2
Q3
15
Q0
3
Q0
Q1
14
Q1
Q7
4
Q7
B
13
B
Q9
5
Q9
C
12
C
Q5
6
Q5
D
11
D
Q6
7
Q6
A
10
A
VSS
8
9
Q8
Q3
A
Q8
Q2
Q3
B
Q4
Q5
IN
C
Q6
Q7
D
Q8
Q9
Truth table
C
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
B
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
20[ns]
OUTPUT
INPUT
D
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
Switching characteristics
A
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
20[ns]
90%
Input wave
50%
10%
tPHL
tPLH
90%
Neg.
PIN description
PIN
Symb
No.
ol
1
Q4
2
Q2
3
Q0
4
Q7
5
Q9
6
Q5
7
Q6
8
VSS
9
Q8
10
A
11
D
12
C
13
B
14
Q1
15
Q3
16
VDD
I/
O
O
O
O
O
O
O
O
―
O
I
I
I
I
O
O
―
Function
Output 4
Output 2
Output 0
Output 7
Output 9
Output 5
Output 6
Power supply(-)
Output 8
Input A
Input D
Input C
Input B
Output 1
Output 3
Power supply (+)
50%
Output wave
Pos.
10%
tTLH
tTHL
●Notes for use
1. Absolute maximum ratings
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break
down the devices, thus making impossible to identify breaking mode, such as a short circuit or an open circuit. If any over rated
values will expect to exceed the absolute maximum ratings, consider adding circuit protection devices, such as fuses.
2. Connecting the power supply connector backward
Connecting of the power supply in reverse polarity can damage IC. Take precautions when connecting the power supply
lines. An external direction diode can be added.
3. Power supply lines
Design PCB layout pattern to provide low impedance GND and supply lines. To obtain a low noise ground and supply line,
separate the ground section and supply lines of the digital and analog blocks. Furthermore, for all power supply terminals
to ICs, connect a capacitor between the power supply and the GND terminal. When applying electrolytic capacitors in the
circuit, not that capacitance characteristic values are reduced at low temperatures.
4. GND voltage
The potential of GND pin must be minimum potential in all operating conditions.
5. Thermal design
Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) in actual operating conditions.
6. Inter-pin shorts and mounting errors
Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any
connection error or if pins are shorted together.
7. Actions in strong electromagnetic field
Use caution when using the IC in the presence of a strong electromagnetic field as doing so may cause the IC to malfunction.
8. Testing on application boards
When testing the IC on an application board, connecting a capacitor to a pin with low impedance subjects the IC to stress.
Always discharge capacitors after each process or step. Always turn the IC's power supply off before connecting it to or
removing it from a jig or fixture during the inspection process. Ground the IC during assembly steps as an antistatic
measure. Use similar precaution when transporting or storing the IC.
9. Ground Wiring Pattern
When using both small signal and large current GND patterns, it is recommended to isolate the two ground patterns,
placing a single ground point at the ground potential of application so that the pattern wiring resistance and voltage
variations caused by large currents do not cause variations in the small signal ground voltage. Be careful not to change the
GND wiring pattern of any external components, either.
10. Unused input terminals
Connect all unused input terminals to VDD or VSS in order to prevent excessive current or oscillation
Insertion of a resistor (100kΩ approx.) is also recommended
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
15/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
●Ordering part number
B
U
4
Part No.
0
1
Part No.
4015B
4021B
4094BC
5
B
F
V
-
Package
None: DIP16
F
: SOP16
FV : SSOP-B16
4538B
4028B
E
2
Packaging and forming specification
E2: Embossed tape and reel
None:Tray,Tube
SOP16
<Tape and Reel information>
10 ± 0.2
(MAX 10.35 include BURR)
9
Embossed carrier tape
Quantity
2500pcs
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
0.3MIN
4.4±0.2
6.2±0.3
16
Tape
1
8
0.11
1.5±0.1
0.15 ± 0.1
1.27
0.4 ± 0.1
0.1
1pin
Reel
(Unit : mm)
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
SSOP-B16
<Tape and Reel information>
5.0±0.2
9
0.3Min.
4.4±0.2
6.4±0.3
16
1
Tape
Embossed carrier tape
Quantity
2500pcs
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
8
0.10
1.15±0.1
0.15±0.1
0.1
0.65
1pin
0.22±0.1
(Unit : mm)
Reel
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
.
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© 2009 ROHM Co., Ltd. All rights reserved.
16/17
2009.06 - Rev.A
BU4015B,BU4015BF,BU4021B,BU4021BF,
BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B
Technical Note
DIP16
<Tape and Reel information>
Container
Tube
Quantity
1000pcs
Direction of feed
Direction of products is fixed in a container tube
19.4±0.3
9
1
8
0.51Min.
3.2±0.2 4.25±0.3
6.5±0.3
16
7.62
0.3±0.1
2.54
0.5±0.1
0°−15°
∗ Order quantity needs to be multiple of the minimum quantity.
(Unit : mm)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
17/17
2009.06 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,
fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of
any of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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© 2009 ROHM Co., Ltd. All rights reserved.
R0039A
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