HITACHI HD74LV138A

HD74LV138A
3-to-8 line Decoder / Demultiplexers
ADE-205-261 (Z)
1st Edition
March 1999
Description
The HD74LV138A is designed to be used in high-performance memory-decoding or data-routing
applications requiring very short propagation delay times. The conditions at the binary-select inputs and
the three enable inputs select one of eight input lines.
Two active-low and one active-high enable inputs reduce the need for external gates or inverters when
expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder
requires only one inverter.
An enable input can be used as a data input for demultiplexing applications.
Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook
computers), and the low-power consumption extends the battery life.
Features
•
•
•
•
•
•
VCC = 2.0 V to 5.5 V operation
All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
All outputs VO (Max.) = 5.5 V (@VCC = 0 V)
Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C)
Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V)
HD74LV138A
Function Table
Enable Inputs
Select Inputs
Outputs
G1
G2A
G2B
C
B
A
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
H
X
X
X
X
H
H
H
H
H
H
H
H
X
X
H
X
X
X
H
H
H
H
H
H
H
H
L
X
X
X
X
X
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
H
H
L
H
H
H
H
H
H
H
L
L
L
H
L
H
H
L
H
H
H
H
H
H
L
L
L
H
H
H
H
H
L
H
H
H
H
H
L
L
H
L
L
H
H
H
H
L
H
H
H
H
L
L
H
L
H
H
H
H
H
H
L
H
H
H
L
L
H
H
L
H
H
H
H
H
H
L
H
H
L
L
H
H
H
H
H
H
H
H
H
H
L
Note: H: High level
L: Low level
X: Immaterial
Pin Arrangement
A 1
16 VCC
B 2
15 Y0
C 3
14 Y1
G2A 4
13 Y2
G2B 5
12 Y3
G1 6
11 Y4
Y7 7
10 Y5
GND 8
9 Y6
(Top view)
2
HD74LV138A
Absolute Maximum Ratings
Item
Supply voltage range
Input voltage range*
1
Output voltage range*
1, 2
Symbol
Ratings
Unit
VCC
–0.5 to 7.0
V
VI
–0.5 to 7.0
V
VO
–0.5 to VCC + 0.5
V
–0.5 to 7.0
Conditions
Output: H or L
VCC: OFF
Input clamp current
I IK
–20
mA
VI < 0
Output clamp current
I OK
±50
mA
VO < 0 or VO > VCC
Continuous output current
IO
±25
mA
VO = 0 to VCC
Continuous current through
VCC or GND
I CC or IGND
±50
mA
Maximum power dissipation
at Ta = 25°C (in still air)*3
PT
785
mW
500
Storage temperature
Tstg
–65 to 150
SOP
TSSOP
°C
Notes: The absolute maximum ratings are values which must not individually be exceeded, and furthermore,
no two of which may be realized at the same time.
1. The input and output voltage ratings mayÇΩ be exceeded if the input and output clamp-current
ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The maximum package power dissipation was calculated using a junction temperature of 150°C.
3
HD74LV138A
Recommended Operating Conditions
Item
Symbol
Min
Max
Unit
Supply voltage range
VCC
2.0
5.5
V
Input voltage range
VI
0
5.5
V
Output voltage range
VO
0
VCC
V
H or L
Output current
I OH
—
–50
µA
VCC = 2.0 V
—
–2
mA
VCC = 2.3 to 2.7 V
—
–6
VCC = 3.0 to 3.6 V
—
–12
VCC = 4.5 to 5.5 V
—
50
µA
VCC = 2.0 V
—
2
mA
VCC = 2.3 to 2.7 V
—
6
VCC = 3.0 to 3.6 V
—
12
VCC = 4.5 to 5.5 V
0
200
0
100
VCC = 3.0 to 3.6 V
0
20
VCC = 4.5 to 5.5 V
–40
85
I OL
Input transition rise or fall rate
Operating free-air temperature
∆t/∆v
Ta
Note: Unused or floating inputs must be held high or low.
4
ns/V
°C
Conditions
VCC = 2.3 to 2.7 V
HD74LV138A
Logic Diagram
A
1
15 Y0
14 Y1
13 Y2
Select
inputs
B
2
12
11
C
Data
outputs
Y4
3
10
9
G2A
Enable G2B
inputs
G1
Y3
4
5
6
7
Y5
Y6
Y7
5
HD74LV138A
DC Electrical Characteristics
• Ta = –40 to 85°C
Item
Symbol
VCC (V)*
Min
Typ
Max
Unit
Input voltage
VIH
2.0
1.5
—
—
V
2.3 to 2.7
VCC × 0.7
—
—
3.0 to 3.6
VCC × 0.7
—
—
4.5 to 5.5
VCC × 0.7
—
—
2.0
—
—
0.5
2.3 to 2.7
—
—
VCC × 0.3
3.0 to 3.6
—
—
VCC × 0.3
4.5 to 5.5
—
—
VCC × 0.3
Min to
Max
VCC – 0.1
—
—
2.3
2.0
—
—
IOH = –2 mA
3.0
2.48
—
—
IOH = –6 mA
4.5
3.8
—
—
IOH = –12 mA
Min to
Max
—
—
0.1
IOL = 50 µA
2.3
—
—
0.4
IOL = 2 mA
3.0
—
—
0.44
IOL = 6 mA
4.5
—
—
0.55
IOL = 12 mA
VIL
Output voltage
VOH
VOL
V
Test Conditions
IOH = –50 µA
Input current
IIN
0 to 5.5
—
—
±1
µA
VI = 5.5 V or GND
Quiescent
supply current
ICC
5.5
—
—
20
µA
VI = VCC or GND, IO = 0
Output leakage
current
IOFF
0
—
—
5
µA
VI or VO = 0 V to 5.5 V
Input
capacitance
CIN
3.3
—
1.7
—
pF
VI = VCC or GND
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
6
HD74LV138A
Switching Characteristics
• VCC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
Propagation
delay
time
tPLH
tPHL
—
11.7
17.6
1.0
21.0
ns
CL = 15 pF
—
14.9
21.4
1.0
25.0
CL = 50 pF
—
12.3
19.2
1.0
22.0
CL = 15 pF
—
15.7
22.6
1.0
26.0
CL = 50 pF
—
11.4
18.2
1.0
21.0
CL = 15 pF
—
14.8
22.0
1.0
25.0
CL = 50 pF
FROM
(Input)
TO
(Output)
A, B,
C
Y
G1
G2A,
G2B
• VCC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
Propagation
delay
time
t PLH
t PHL
—
8.1
11.4
1.0
13.5
ns
CL = 15 pF
—
10.3
15.8
1.0
18.0
CL = 50 pF
—
8.4
12.8
1.0
15.0
CL = 15 pF
—
10.6
16.3
1.0
18.5
CL = 50 pF
—
7.8
11.4
1.0
13.5
CL = 15 pF
—
10.0
14.9
1.0
17.0
CL = 50 pF
FROM
(Input)
TO
(Output)
A, B,
C
Y
G1
G2A,
G2B
7
HD74LV138A
Switching Characteristics (cont)
• VCC = 5.0 ± 0.5 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
Propagation
delay
time
t PLH
t PHL
—
5.6
8.1
1.0
9.5
ns
CL = 15 pF
—
7.0
10.1
1.0
11.5
CL = 50 pF
—
5.7
8.1
1.0
9.5
CL = 15 pF
—
7.1
10.1
1.0
11.5
CL = 50 pF
—
5.4
8.1
1.0
9.5
CL = 15 pF
—
6.8
10.1
1.0
11.5
CL = 50 pF
FROM
(Input)
TO
(Output)
A, B,
C
Y
G1
G2A,
G2B
Operating Characteristics
• CL = 50 pF
Ta = 25°C
Item
Symbol
VCC (V)
Min
Typ
Max
Unit
Test Conditions
Power
dissipation
capacitance
CPD
3.3
—
16.8
—
pF
f = 10 MHz
5.0
—
19.1
—
8
HD74LV138A
Test Circuit
Measurement point
CL*
Note: C L includes the probe and jig capacitance.
• Waveform
tr
Input
10%
tf
90%
50% VCC
90%
50% VCC
VCC
10%
t PHL
t PLH
0V
VOH
In phase output
50% VCC
50% VCC
VOL
t PHL
t PLH
VOH
Out of phase output
50% VCC
50% VCC
VOL
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, t r ≤ 3 ns, tf ≤ 3 ns
2. The output is measured one at a time with one transition per measurement.
9
HD74LV138A
Package Dimensions
10.06
10.5 Max
9
1
8
1.27
0.42 ± 0.08
0.40 ± 0.06
0.10 ± 0.10
0.80 Max
0.22 ± 0.05
0.20 ± 0.04
2.20 Max
5.5
16
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
Dimension including the plating thickness
Base material dimension
10
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-16DA
—
Conforms
0.24 g
HD74LV138A
Unit: mm
9.9
10.3 Max
9
1
8
0.635 Max
0.42 ± 0.08
0.40 ± 0.06
0.15
*0.22 ± 0.03
0.20 ± 0.03
1.27
0.11
0.14 +– 0.04
1.75 Max
3.95
16
0.10
6.10 +– 0.30
1.08
0° – 8°
+ 0.67
0.60 – 0.20
0.25 M
Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-16DN
Conforms
Conforms
0.15 g
11
HD74LV138A
5.0
5.3 Max
9
1
8
4.40
16
0.65
0.13 M
1.10 Max
0.65 Max
0.10
Dimension including the plating thickness
Base material dimension
12
6.40 ± 0.20
0.07 +0.03
–0.04
0.20 ± 0.06
1.0
0.17 ± 0.05
0.15 ± 0.04
0.08
0.22 +– 0.07
0° – 8°
0.50 ± 0.10
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
TTP-16DA
—
—
0.05 g
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
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written approval from Hitachi.
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products.
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