KODENSHI KK74LV138

TECHNICAL DATA
KK74LV138
3-to-8 line decoder/demultiplexer;
inverting
N SUFFIX
PLASTIC
The KK74LV138 is a low-voltage Si-gate CMOS device and is pin
and function compatible 74HCT138.
The74LV138 accepts three binary weighted address inputs (A0,A1,A2) and when enabled, provide 8 - mutually exclusive active
LOW outputs (Y0 to Y7).
The “138” features three enable inputs: two active LOW (CS2,CS3
and one active HIGH (CS1).Every output will be HIGH unless CS2, and
CS3 are LOW and CS1 is HIGH.
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•
•
•
•
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16
1
D SUFFIX
SOIC
16
1
ORDERING INFORMATION
KK74LV138N Plastic
KK74LV138D SOIC
Optimized for Low Voltage applications:1.2 to 3.6 V
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Active LOW mutually exclusive outputs
Output capability: standard
TA = -40° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
PIN 16 =VCC
PIN 8 = GND
Outputs
CS1 CS2 CS3
A2 A1 A0
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X X H
X H X
L X X
X X X
X X X
X X X
H H H H H H H H
H H H H H H H H
H H H H H H H H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
H
L
H
L
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
H
L
L
H
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H = high level (steady state)
L = low level (steady state)
X = don’t care
1
KK74LV138
*
MAXIMUM RATINGS
Symbol
Parameter
Value
Conditions
Uni
t
VCC
DC supply voltage
-0.5 to +7.0
IIK
DC input diode current
±20
VI< - 0.5 or VI> Vcc+0.5V
mA
IOK
DC output diode current
±50
mA
IO
DC output source or sink current
±25
VO< - 0.5 or VO> Vcc+0.5V
-0.5В<Vo<Vcc+0.5B
ICC
DC VCC or GND current for types with
standard outputs
±50
mA
Tstg
Storage Temperature
-65 to +150
°C
PD
Power Dissipation per package
Plastic DIP+
SOIC Package+
TL
Lead temperature, 1.5 mm from Case for
4 seconds
(Plastic DIP ), 0.3 mm (SOIC Package)
V
mA
mW
750
500
°C
260
*
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: - 12 mW/°C from 70° to 125°C
SOIC Package: : - 8 mW/°C from 70° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
VCC
DC supply voltage
1.0
5.5
V
VIN,
DC input voltage,
0
VCC
V
VO
DC output voltage
0
VCC
V
TA
Operating ambient temperature range in free air
-40
+125
°C
tr, tf
Input rise and fall times except for
Schmitt-trigger inputs
0
0
0
500
200
100
50
ns/B
Vcc= 1.0 ÷ 2.0В
Vcc= 2.0 ÷ 2.7В
Vcc= 2.7 ÷ 3.6В
Vcc= 3.6 ÷ 5.5В
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.
2
KK74LV138
DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test
Conditions
Guaranteed Limit
VCC,
В
25°C
min
VIH
High-level input
voltage
1.2
2.0
2.7 to 3.6
4.5 to 5.5
0.9
1.4
2.0
0.7 Vcc
VIL
Low -level input
voltage
1.2
2.0
2.7 to 3.6
4.5 to 5.5
VOH
High-level
output voltage
VOL
Low-level
output voltage
max
от -40°C to
85°C
min
max
Unit
от -40°C to
125°C
min
max
0.9
0.9
1.4
1.4
2.0
2.0
0.7 Vcc
0.7 Vcc
0.3
0.3
0.3
0.6
0.6
0.6
0.8
0.8
0.8
0.3 Vcc
0.3 Vcc
0.3 Vcc
1.8
1.8
2.5
2.5
2.8
2.8
3.4
3.4
4.3
4.3
5.3
5.3
2.40
2.20
3.60
3.50
В
-I0=100µA
VIH or VIL
1.2
2.0
2.7
3.0
3.6
4.5
5.5
1.85
2.55
2.85
3.45
4.35
5.35
VIH or VIL
-IO=6.0 mA
-IO=12.0 mA
3.0
4.5
2.48
3.70
VIH or VIL
I0=100µA
1.2
2.0
3.0
-
0.15
0.15
0.15
-
0.2
0.2
0.2
-
0.2
0.2
0.2
B
VIH or VIL
IO=6.0 mA
IO=12.0 mA
3.0
4.5
-
0.33
0.40
-
0.40
0.55
-
0.50
0.65
B
В
В
B
II
Input leakage
current
VCC or GND
5.5
-
±0.1
-
±1.0
-
±1.0
мкА
ICC
Quiescent
supply current
VCC or GND
IO=0
5.5
-
8.0
-
80
-
160
мкА
3
KK74LV138
AC ELECTRICAL CHARACTERISTICS (CL=50 pF, tLH = tHL = 2.5 nc, VIL=0B, VIH=VCC)
Symbol
Parameter
VCC
Guaranteed Limit
V
tPLH, tPHL Propagation delay,
input A to output Y
(Figures 1)
tPLH, tPHL Propagation delay ,
CS1 to
output Y
(Figures 2)
1.2
2.0
2.7
3.0
4.5
1.2
2.0
2.7
3.0
4.5
tPLH, tPHL Output transition
time, CS2 or CS3 to
output Y (Figures 3)
CIN
Input capacitance
25°C
min
max
-
150
33
23
19
14
170
35
26
21
17
170
35
26
21
17
7.0
-
-
5.0
Т=+25 оС
от -40°C to
85°C
max
min
от -40°C to
125°C
min
max
150
36
26
21
16
170
39
29
23
19
170
39
29
23
19
-
-
-
-
-
-
50%
tPLH
tPHL
OUTPUT
Y
50%
Figure 1. Switching Waveforms
GND
ns
ns
90
INPUT
CS1
tPHL
OUTPUT
Y
pF
tf
tr
Vcc
ns
Typical @25°C,VCC=5.5 V
Used to determine the no-load dynamic power
consumption:
PD=CPDVCC2f+ICCVCC
INPUT
A
180
44
33
26
20
200
49
36
29
24
200
49
36
29
24
pF
Power dissipation capacitance (per enabled
output)
CPD
Unit
90%
50%
10%
Vcc
GND
tPLH
90%
50%
10%
Figure 2. Switching Waveforms
4
KK74LV138
tr
INPUT
CS2,CS3
TEST POINT
tPHL
OUTPUT
Y
Vcc
90%
50%
10%
GND
DEVICE
UNDER
TEST
OUTPUT
tPLH
90%
50%
10%
*
C
L
* Includes all prode and jig capacitance
Figure 3. Switching Waveforms
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
5
KK74LV138
N SUFFIX PLASTIC DIP
(MS - 001BB)
A
Dimension, mm
9
16
B
1
8
Symbol
MIN
MAX
A
18.67
19.69
B
6.1
7.11
5.33
C
F
L
C
-T- SEATING
PLANE
N
G
K
D
M
H
J
0.25 (0.010) M T
NOTES:
1. Dimensions “A”, “B” do not include mold flash or protrusions.
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
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
0.2
0.36
N
0.38
D SUFFIX SOIC
(MS - 012AC)
Dimension, mm
A
16
9
H
B
1
G
P
8
R x 45
C
-TK
D
SEATING
PLANE
J
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.
F
M
Symbol
MIN
MAX
A
9.8
10
B
3.8
4
C
1.35
1.75
D
0.33
0.51
F
0.4
1.27
G
1.27
H
5.72
J
0°
8°
K
0.1
0.25
M
0.19
0.25
P
5.8
6.2
R
0.25
0.5
6