Datasheet
Serial-in / Parallel-out Driver Series
2-input Serial- in / Parallel- out Drivers
BU2090F
Description
BU2090F/BU2090FS are an open drain output driver.It
incorporates a built-in shift register and a latch circuit to
turn on a maximum of 12 Outputs by a 2-line interface,
linked to a microcontroller.
An open-drain output provides maximum 25mA current.
BU2090FS
Key Specifications
Power supply voltage range:
Output voltage:
Operating temperature range:
2.7V to 5.5V
0V to 25V
-40℃ to +85℃
Features
LED can be driven directly
12 bit parallel output
This product can be operated on low voltage
Package
SOP16
SSOP-A16
W(Typ) x D(Typ) x H(Max)
10.00mm x 6.20mm x 1.71mm
6.60mm x 6.20mm x 1.71mm
Applications
Drive of LED
Drive of Solenoid
Drive of Relay
SOP16
BU2090F
SSOP-A16
BU2090FS
Pin Configurations
(Top View)
VSS
1
DATA
CLOCK
2
3
16
VDD
15
Q11
14
Q10
13
Q9
12
Q8
11
Q7
10
Q6
9
Q5
Block Diagrams
CLOCK
Shift
Controller
DATA
Register
Q0
4
Q1
5
Q2
6
Q3
7
Q4
8
12bit
Latch
Write Buffer
Q0½Q11
○Product
structure：Silicon monolithic integrated circuit
.
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© 2013 ROHM Co., Ltd. All rights reserved.
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○This
product has no designed protection against radioactive rays
1/12
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BU2090F
BU2090FS
Datasheet
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
VSS
DATA
CLOCK
Q0
Q1
Q2
Q3
Q4
Q5
O
Q6
Q7
Q8
Q9
Q10
Q11
VDD
-
Power supply
Parallel data output
(Nch Open-Drain )
I/O
-
I
I
Ground
Serial data input
Serial clock input
Function
Absolute Maximum Ratings
Parameter
Power Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Storage Temperature
Symbol
V
DD
V
IN
V
O
T
opr
T
stg
Limits
-0.3 to +7.0
V
SS
-0.3 to V
DD
+0.3
V
SS
-0.3 to +25
-40 to +85
-55 to +125
0.50
Power Dissipation
P
D
0.65
(Note 1)
Unit
V
V
V
°C
°C
(Note 2)
W
(Note 1) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 5.0mW per 1°C above 25°C.
(Note 2) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 6.5mW per 1°C above 25°C.
Caution:
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated
over the absolute maximum ratings.
Recommended Operating Conditions
(T
A
=25℃, V
SS
=0V)
Parameter
Power supply voltage
Output voltage
Symbol
V
DD
V
O
Limits
+2.7 to +5.5
0 to +25
Unit
V
V
.
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BU2090F
BU2090FS
Datasheet
Electrical Characteristics
DC Characteristics
(unless otherwise noted, V
DD
=5V, V
SS
=0V, T
A
=25℃)
Limits
Parameter
Input High-level voltage
Input Low-level voltage
Output Low-level voltage
Input High-level current
Input Low-level current
“H” output leak current
“L” output leak current
Static dissipation current
Symbol
Min
V
IH
V
IL
V
OL
I
IH
I
IL
I
OZH
I
OZL
I
DD
3.5
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
Max
-
1.5
2.0
2.0
-2.0
10
-5.0
5.0
V
V
V
μA
μA
μA
μA
μA
I
OL
=20mA
V
IN
=V
DD
V
IN
=0
V
O
=25V
V
O
=0V
Unit
Condition
Timing Characteristics
(Unless otherwise noted, V
DD
=5V, V
SS
=0V, T
A
=25℃)
Limits
Parameter
Minimum clock frequency
Data shift set up time
Data shift hold time
Data latch set up time
Data latch hold time
Data latch ”L”set up time
Data latch ”L”hold time
Symbol
Min
t
W
t
SU
t
H
t
LSUH
t
LHH
t
LSUL
t
LHL
500
200
200
50
250
200
250
Typ
-
-
-
-
-
-
-
Max
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
Unit
Condition
Waveform of Timing Characteristics
t
W
90%
CLOCK
10%
t
SU
t
H
t
LSUL
90%
10%
t
LHL
10%
t
LSUH
t
W
90%
10%
t
LHH
V
DD
V
DD
V
SS
90%
90%
10%
10%
90%
90%
DATA
V
SS
Figure 1. Waveform of Timing Characteristics
.
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BU2090F
Test Circuits
BU2090FS
Datasheet
V
DD
R
L
=10kΩ
R
L
R
L
R
L
R
L
R
L
R
L
R
L
+25V
V
SS
R
L
R
L
R
L
R
L
R
L
V
IH
V
IL
V
SS
PatternGenerator
Figure 2. Test Circuit of Input H/LVoltage
V
DD
12
SW
V
SS
1
I
OUT
V
OL
PatternGenerator
Figure 3. Test Circuit of Output L Voltage
V
DD
V
SS
V
SS
I
IH
I
IL
A
+
V
IN
V
SS
Figure 4. Test Circuit of Input H/LCurrent
.
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BU2090F
BU2090FS
Datasheet
Test Circuits - continued
V
DD
V
DD
+
I
DD
A
+
I
OZ
A
12
SW
V
SS
1
PatternGenerator
Figure 5. Test Circuit of Output Leak Current / Static Dissipation Current
V
DD
R
L
=10kΩ
R
L
R
L
R
L
R
L
R
L
R
L
R
L
+25V
V
SS
R
L
R
L
R
L
R
L
R
L
V
DD
PatternGenerator
V
SS
Figure 6. Test Circuit of
Timing Characteristics
.
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/12
TSZ02201-0RHR1GZ00110-1-2
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