Integral IW4028BN Bcd-to-decimal decoder high-voltage silicon-gate cmo Datasheet

TECHNICAL DATA
IW4028B
BCD-to-Decimal Decoder
High-Voltage Silicon-Gate CMOS
The IW4028B types are BCD-to-decimal or binary-to-octal
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.
• BCD-to-decimal decoding or binary-to-octal decoding
• Operating Voltage Range: 3.0 to 18 V
• Maximum input current of 1 µA at 18 V over full packagetemperature 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
LOGIC DIAGRAM
PIN 16=VCC
PIN 8= GND
59
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)
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+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 VCC).
Unused outputs must be left open.
60
IW4028B
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
VCC
Guaranteed Limit
V
≥-55°C
25°C
≤125
°C
Unit
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 VOUT= 0.5 V or VCC - 0.5V
Input Voltage
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
µA
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
µA
IOL
Minimum Output Low VIN= GND or VCC
(Sink) Current
UOL=0.4 V
UOL=0.5 V
UOL=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
VIN= GND or VCC
High (Source) Current UOH=2.5 V
UOH=4.6 V
UOH=9.5 V
UOH=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
Symbol
Parameter
VIH
Minimum High-Level
Input Voltage
IOH
Test Conditions
mA
mA
61
IW4028B
AC ELECTRICAL CHARACTERISTICS(CL=50pF, RL=200kΩ, Input tr=tf=20 ns)
Guaranteed Limit
VCC
Symbol
Parameter
V
≥-55°C
25°C
≤125°C
Unit
tPHL, tPLH
Maximum Propagation Delay, Input A to Output
Y (Figure 1)
5.0
10
15
350
160
120
350
160
120
700
320
240
ns
tTHL, tTLH
Maximum Output Transition Time, Any Output
(Figure 1)
5.0
10
15
200
100
80
200
100
80
400
200
160
ns
CIN
Maximum Input Capacitance
-
7.5
pF
FUNCTION TABLE
Inputs
62
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
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L
H
H
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L
L
H
L
L
L
L
L
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L
H
L
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L
L
L
L
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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
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L
L
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L
L
L
L
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L
L
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L
L
H
L
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L
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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
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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
IW4028B
Figure 1. Switching Waveforms
EXPANDED LOGIC DIAGRAM
63
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