Datasheet
Serial-in / Parallel-out Driver Series
2-input I C-bus
Serial in/Parallel out Drivers
BU2098F
Description
BU2098F is an open drain output driver.It incorporates a
built-in shift register and a latch circuit to control a
maximum of 8 outputs by a 2-line interface, linked to a
microcontroller.
An open drain output provides maximum 25mA current.
2
Key Specifications
Power supply voltage range:
Output voltage:
Operating temperature range:
2.7V to 5.5V
0V to 15V
-40℃ to +85℃
Features
LED can be driven directly
8 Bit parallel output
This product can be operated on low voltage
2
Compatible with I C-bus
2
*I C-bus is a trademark of NXP Semiconductors.
Package
SOP16
W(Typ) x D(Typ) x H(Max)
10.00mm x 6.20mm x 1.71mm
Applications
Drive of LED
Drive of Solenoid
Drive of Relay
Pin Configurations
(Top View)
A0 1
A1 2
A2 3
Q0 4
Q1 5
Q2 6
Q3 7
VSS 8
16 VDD
15 SDA
14 SCL
13 N.C.
12 Q7
11 Q6
10 Q5
9 Q4
Block Diagrams
Power-On
Reset
SDA
SCL
A0
A1
A2
I C-bus
Controller
2
Shift
Register
8bit
Latch
Write Buffer
Q0½Q7
○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
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BU2098F
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
A0
A1
A2
Q0
Q1
Q2
Q3
V
SS
Q4
Q5
O
Q6
Q7
N.C.
SCL
SDA
V
DD
-
I
I/O
-
Non connected
Serial clock input
Serial data input/output
Power supply
Open drain output
-
Ground
O
Open drain output
I/O
I
I
I
Address input (internally pull-up)
Function
Absolute Maximum Ratings
Parameter
Power Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Storage Temperature
Power Dissipation
Symbol
V
DD
V
IN
V
O
T
opr
T
stg
P
D
Limits
-0.5 to +7.0
-0.5 to V
DD
+0.5
V
SS
to +18.0
-40 to +85
-55 to +125
0.30
(Note 1)
Unit
V
V
V
°C
°C
W
(Note 1) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 3.0mW 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 +15
Unit
V
V
.
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BU2098F
Electrical Characteristics
(unless otherwise noted, V
DD
=5V, V
SS
=0V, T
A
=25℃)
Parameter
Input High-level voltage
Input Low-level voltage
Output Low-level voltage
Input Low-level current
Input High-level current
Output leakage current
Static dissipation current
Symbol
V
IH
V
IL
V
OL
I
IL
I
IH
I
OZ
I
DD
Limits
Min
0.7V
DD
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
Max
-
0.3V
DD
0.4
2.0
-2.0
±5.0
2.0
Unit
V
V
V
μA
μA
μA
μA
I
OUT
=10mA
V
IN
=0
V
IN
=V
DD
Output=High impedance
V
OUT
=V
DD
Condition
Timing Characteristics
(Unless otherwise noted, V
DD
=5V, V
SS
=0V, T
A
=25℃)
Parameter
SCL clock frequency
Bus free time between start-stop condition
Hold time start condition
Low period of the SCL clock
High period of the SCL clock
Set up time Re-start condition
Data hold time
Data set up time
Rise time of SDA and SCL
Fall time of SDA and SCL
Set up time stop condition
Capacitive load for SDA line and SCL line
Symbol
f
SCL
t
BUS
t
HD:STA
t
LOW
t
HIGH
t
SU:STA
t
HD:DAT
t
SU:DAT
t
R
t
F
t
SU:STO
C
b
Fast mode I C-bus
Min
0
1.3
0.6
1.3
0.6
0.6
0
100
20+0.1×C
b
20+0.1×C
b
0.6
-
Max
400
-
-
-
-
-
-
-
300
300
-
400
2
Standard mode I C-bus
Min
0
4.7
4.0
4.7
4.0
4.7
0
250
-
-
4.0
-
Max
100
-
-
-
-
-
-
-
1000
300
-
400
2
Unit
kHz
μs
μs
μs
μs
μs
μs
ns
ns
ns
μs
pF
Waveform of Timing Characteristics
90%
SD
A
t
BUS
10%
t
HD:STA
t
R
t
LOW
90%
10%
t
SU:STA
t
F
t
HD:STA
t
SU:STO
SCL
P
S
t
HIGH
t
HD:DAT
t
SU:DAT
S
P
S:Start Condition
P:Stop Condition
Figure 1. Timing chart (SDA, SCL)
.
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BU2098F
Test Circuits
V
DD
R
L
=10kΩ
R
L
R
L
R
L
R
L
+15V
PatternGenerator
V
IH
V
IL
V
SS
R
L
R
L
R
L
R
L
V
SS
Figure 2. Test Circuit of Input H/LVoltage
V
DD
8
SW
V
SS
PatternGenerator
1
I
OUT
V
OL
V
SS
Figure 3. Test Circuit of Output L Voltage
V
DD
V
SS
I
IH
I
IL
+
V
IN
A
V
SS
Figure 4. Test Circuit of Input H/LCurrent
.
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BU2098F
Test Circuit - continued
V
DD
V
DD
+
I
DD
A
+
I
OZ
A
8
SW
V
SS
PatternGenerator
1
Figure 5. Test Circuit of Output Leak Current / Static Dissipation Current
V
DD
R
L
=10kΩ
R
L
R
L
R
L
R
L
+15V
PatternGenerator
V
DD
V
SS
R
L
R
L
R
L
R
L
V
SS
Figure 6. Test Circuit of
Timing Characteristics
.
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/14
TSZ02201-0RHR1GZ00100-1-2
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