IW4028B

TECHNICAL DATA
BCD-TO-DECIMAL DECODER
HIGH-VOLTAGE SILICON-GATE CMOS
IW4028B
The IW4028B types are BCD-to-decimal or binary-tooctal decoders consisting of buffering on all 4 inputs,
decoding-logic gates, and 10 output buffers. A BCD code
applied to the four inputs, A0 to A3 results in a high level
at the selected one of 10 decimal decoded outputs.
Similarly, a 3-bit binary code applied to inputs A0 through
A2 is decoded in octal code at output 0 to7 if A3=“0”.
High drive capability is provided at all outputs to enhance
dc and dynamic performance in high fan-out applications.
FEATURES
 BCD-to-decimal decoding or binary-to-octal decoding
 Operating Voltage Range: 3.0 to 18 V
 Maximum input current of 1 A at 18 V over full
package-temperature range; 100 nA at 18 V and 25C
 Noise margin (over full package temperature range):
1.0 V min @ 5.0 V supply
2.0 V min @ 10.0 V supply
2.5 V min @ 15.0 V supply
ORDERING INFORMATION
IW4028BN Plastic
IW4028BD SOIC
TA = -55 to 125 C for all packages
PIN ASSIGNMENT
ORDERING INFORMATION
Device
IW4028BN
IW4028BD
IW4028BDT
Operating
Temperature Range
Package
Packing
ТА = - 55 ... + 125 С
DIP 16
SOP16
SOP16
Tube
Tube
Tape & Reel
LOGIC DIAGRAM
PIN 16=VCC
PIN 8= GND
1
2013 February, Ver. 00
IW4028B
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
-0.5 to +20
V
VCC
DC Supply Voltage (Referenced to GND)
VIN
DC Input Voltage (Referenced to GND)
-0.5 to VCC +0.5
V
DC Output Voltage (Referenced to GND)
-0.5 to VCC +0.5
V
VOUT
IIN
DC Input Current, per Pin
10
mA
PD
Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
750
500
mW
PD
Power Dissipation per Output Transistor
100
mW
-65 to +150
C
260
C
Tstg
TL
Storage Temperature
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
*
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those
indicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
+ Derating - Plastic DIP: - 10 mW/C from 65 to 125C
SOIC Package: - 7 mW/C from 65 to 125C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VIN, VOUT
TA
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Min
Max
Unit
3.0
18
V
0
VCC
V
-55
+125
C
This device contains protection circuitry to guard against damage due to high static voltages or
electric fields. However, precautions must be taken to avoid applications of any voltage higher than
maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be
constrained to the range GND  (VIN or VOUT)  VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V CC).
Unused outputs must be left open.
2
2013 February, Ver. 00
IW4028B
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Symbol
Parameter
Test Conditions
Guaranteed Limit
VCC
V
-55C
25C
125
C
Unit
VIH
Minimum High-Level
Input Voltage
VOUT= 0.5 V or VCC - 0.5V
VOUT= 1.0 V or VCC - 1.0 V
VOUT= 1.5 V or VCC - 1.5V
5.0
10
15
3.5
7
11
3.5
7
11
3.5
7
11
V
VIL
Maximum Low -Level
Input Voltage
VOUT= 0.5 V or VCC - 0.5V
VOUT= 1.0 V or VCC - 1.0 V
VOUT= 1.5 V or VCC - 1.5V
5.0
10
15
1.5
3
4
1.5
3
4
1.5
3
4
V
VOH
Minimum High-Level
Output Voltage
VIN=GND or VCC
5.0
10
15
4.95
9.95
14.95
4.95
9.95
14.95
4.95
9.95
14.95
V
VOL
Maximum Low-Level
Output Voltage
VIN=GND or VCC
5.0
10
15
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
V
IIN
Maximum Input
Leakage Current
VIN= GND or VCC
18
0.1
0.1
1.0
A
ICC
Maximum Quiescent
Supply Current
(per Package)
VIN= GND or VCC
5.0
10
15
20
5
10
20
100
5
10
20
100
150
300
600
3000
A
IOL
Minimum Output Low
(Sink) Current
VIN= GND or VCC
VOL=0.4 V
VOL=0.5 V
VOL=1.5 V
5.0
10
15
0.64
1.6
4.2
0.51
1.3
3.4
0.36
0.9
2.4
Minimum Output High
(Source) Current
VIN= GND or VCC
VOH=2.5 V
VOH=4.6 V
VOH=9.5 V
VOH=13.5 V
5.0
5.0
10
15
-2
-0.64
-1.6
-4.2
-1.6
-0.51
-1.3
-3.4
-1.15
-0.36
-0.9
-2.4
IOH
mA
mA
3
2013 February, Ver. 00
IW4028B
AC ELECTRICAL CHARACTERISTICS (CL=50pF, RL=200k, Input tr = tf = 20 ns)
Symbol
tPHL, tPLH
Maximum Propagation Delay,
Input A to Output Y (Figure 1)
tTHL, tTLH
Maximum Output Transition Time,
Any Output (Figure 1)
CIN
Guaranteed Limit
VCC
Parameter
V
-55C
25C
125C
Unit
5.0
10
15
350
160
120
350
160
120
700
320
240
ns
5.0
10
15
200
100
80
200
100
80
400
200
160
ns
Maximum Input Capacitance
-
7.5
pF
FUNCTION TABLE
Inputs
Outputs
A3
A2
A1
A0
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
H
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
H
L
L
L
L
L
L
H
L
H
L
L
L
L
L
H
L
L
L
L
L
H
H
L
L
L
L
L
L
L
H
L
L
L
L
H
H
H
L
L
L
L
L
L
L
H
L
L
H
L
L
L
L
L
L
L
L
L
L
L
H
L
H
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
H
L
L
L
L
L
L
L
L
L
L
L
H
L
H
H
L
L
L
L
L
L
L
L
L
L
H
H
L
L
L
L
L
L
L
L
L
L
L
L
H
H
L
H
L
L
L
L
L
L
L
L
L
L
H
H
H
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
L
L
L
4
2013 February, Ver. 00
IW4028B
Figure 1. Switching Waveforms
EXPANDED LOGIC DIAGRAM
Figure 2.
5
2013 February, Ver. 00
IW4028B
PACKAGE DIMENSION
N SUFFIX PLASTIC
(MS - 001BB)
A
9
16
Dimensions, mm
B
1
8
F
Symbol
MIN
MAX
A
18.67
19.69
B
6.10
7.11
C
L
C
-T- SEATING
PLANE
N
G
K
M
J
H
D
0.25 (0.010) M T
NOTES:
1. imensions “A”, “B” do not include mold flash or protrusions.
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
5.33
D
0.36
0.56
F
1.14
1.78
G
2.54
H
7.62
J
0
10
K
2.92
3.81
L
7.62
8.26
M
0.20
0.36
N
0.38
D SUFFIX SOIC
(MS - 012AC)
A
16
9
H
Dimensions, mm
B
1
G
P
8
R x 45
C
-TK
D
SEATING
PLANE
J
F
0.25 (0.010) M T C M
NOTES:
1.Dimensions A and B do not include mold flash or protrusion.
2.Maximum mold flash or protrusion 0.15 mm (0.006) per side for A, for
B - 0.25 mm (0.010) per side.
6
M
Symbol.
MIN
MAX
A
9.80
10.0
B
3.80
4.00
C
1.35
1.75
D
0.33
0.51
F
0.40
1.27
G
1.27
H
5.72
J
0
8
K
0.10
0.25
M
0.19
0.25
P
5.80
6.20
R
0.25
0.50
2013 February, Ver. 00