HITACHI HD74LV126

HD74LV126A
Quad. Bus Buffer Gates with 3-state Outputs
ADE-205-259 (Z)
1st Edition
March 1999
Description
The HD74LV126A features independent line drivers with three state outputs. Each output is disabled when
the associated output enable (OE) input is low. To ensure the high impedance state during power up or
power down, OE should be connected to GND through a pull-down resistor; the minimum value of the
resistor is determined by the current souring capability of the driver. 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 ±8 mA (@VCC = 3.0 V to 3.6 V), ±16 mA (@VCC = 4.5 V to 5.5 V)
Function Table
Inputs
OE
A
Output Y
H
H
H
H
L
L
L
X
Z
Note: H:
L:
X:
Z:
High level
Low level
Immaterial
High impedance
HD74LV126A
Pin Arrangement
1OE 1
14 VCC
1A 2
13 4OE
1Y 3
12 4A
2OE 4
11 4Y
2A 5
10 3OE
2Y 6
9 3A
GND 7
8 3Y
(Top view)
2
HD74LV126A
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 or Output: Z
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
±35
mA
VO = 0 to VCC
Continuous current through
VCC or GND
I CC or IGND
±70
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 may 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
HD74LV126A
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
0
5.5
—
–50
µA
VCC = 2.0 V
—
–2
mA
VCC = 2.3 to 2.7 V
—
–8
VCC = 3.0 to 3.6 V
—
–16
VCC = 4.5 to 5.5 V
—
50
µA
VCC = 2.0 V
—
2
mA
VCC = 2.3 to 2.7 V
—
8
VCC = 3.0 to 3.6 V
—
16
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
Output current
I OH
I OL
Input transition rise or fall rate
Operating free-air temperature
∆t /∆v
Ta
ns/V
°C
Logic Diagram
1A
2OE
2A
3OE
3A
4OE
4A
4
1
2
3
1Y
4
5
6
2Y
10
9
8
3Y
13
12
H or L
High impedance state
Note: Unused or floating inputs must be held high or low.
1OE
Conditions
11
4Y
VCC = 2.3 to 2.7 V
HD74LV126A
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 = –8 mA
4.5
3.8
—
—
IOH = –16 mA
Min to
Max
—
—
0.1
IOL = 50 µA
2.3
—
—
0.4
IOL = 2 mA
3.0
—
—
0.44
IOL = 8 mA
4.5
—
—
0.55
IOL = 16 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
Off-state
output current
IOZ
5.5
—
—
±5
µA
VO = VCC 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
—
3
—
pF
VI = VCC or GND
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
5
HD74LV126A
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
FROM
(Input)
TO
(Output)
Propagation
delay
time
tPLH
tPHL
—
7.1
13.0
1.0
15.5
ns
CL = 15 pF
A
Y
—
9.2
16.5
1.0
18.5
—
7.4
13.0
1.0
15.5
OE
Y
—
9.5
16.5
1.0
18.5
—
5.7
14.7
1.0
17.0
OE
Y
—
8.1
18.2
1.0
20.5
Enable
time
Disable
time
tZH
tZL
tHZ
tLZ
CL = 50 pF
ns
CL = 15 pF
CL = 50 pF
ns
CL = 15 pF
CL = 50 pF
• VCC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
FROM
(Input)
TO
(Output)
Propagation
delay
time
tPLH
tPHL
—
5.0
8.0
1.0
9.5
ns
CL = 15 pF
A
Y
—
6.4
11.5
1.0
13.0
—
5.1
8.0
1.0
9.5
OE
Y
—
6.6
11.5
1.0
13.0
—
4.4
9.7
1.0
11.5
OE
Y
—
6.1
13.2
1.0
15.0
Enable
time
Disable
time
6
tZH
tZL
tHZ
tLZ
CL = 50 pF
ns
CL = 15 pF
CL = 50 pF
ns
CL = 15 pF
CL = 50 pF
HD74LV126A
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
FROM
(Input)
TO
(Output)
Propagation
delay
time
tPLH
tPHL
—
3.5
5.5
1.0
6.5
ns
CL = 15 pF
A
Y
—
4.6
7.5
1.0
8.5
—
3.6
5.1
1.0
6.0
OE
Y
—
4.6
7.1
1.0
8.0
—
3.3
6.8
1.0
8.0
OE
Y
—
4.3
8.8
1.0
10.0
Enable
time
Disable
time
tZH
tZL
tHZ
tLZ
CL = 50 pF
ns
CL = 15 pF
CL = 50 pF
ns
CL = 15 pF
CL = 50 pF
7
HD74LV126A
Output-skew Characteristics
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol
VCC = (V)
Min
Max
Min
Max
Unit
Output skew
t sk (O)
2.3 to 2.7
—
2.0
—
2.0
ns
3.0 to 3.6
—
1.5
—
1.5
4.5 to 5.5
—
1.0
—
1.0
Note: Skew between any outputs of the same package switching in the same direction. This parameter is
warranted but not production tested.
Operating Characteristics
• CL = 50 pF
Ta = 25°C
Item
Symbol
VCC = (V)
Min
Typ
Max
Unit
Test Conditions
Power
dissipation
capacitance
CPD
3.3
—
23.0
—
pF
f = 10 MHz
5.0
—
27.0
—
Test Conditions
Noise Characteristics
• CL = 50 pF
Ta = 25°C
Item
Symbol
VCC = (V)
Min
Typ
Max
Unit
Quiet output,
maximum
dynamic VOL
VOL (P)
3.3
—
0.2
0.8
V
Quiet output,
minimum
dynamic VOL
VOL (V)
3.3
—
–0.2
–0.8
Quiet output,
minimum
dynamic VOH
VOH (V)
3.3
—
3.01
—
High-level
dynamic
input voltage
VIH (D)
3.3
2.31
—
—
Low-level
dynamic
input voltage
VIL (D)
3.3
—
—
0.99
8
V
HD74LV126A
Test Circuit
VCC
Input
Pulse Generator
Z OUT = 50 Ω
See Function Table
VCC
Output
1 k Ω S1
OPEN
See under table
GND
*1
CL =
15 or 50 pF
TEST
t PLH /tPHL
S1
OPEN
t ZH/tHZ
t ZL /tLZ
GND
VCC
Note: 1. C L includes probe and jig capacitance.
9
HD74LV126A
tf
tr
• Waveform-1
90 %
50 %VCC
Input A
VCC
90 %
50 %VCC
10 %
10 %
GND
t PHL
t PLH
VOH
50 %VCC
50 %VCC
Output Y
VOL
tr
• Waveform-2
tf
90 %
50 %VCC
Input OE
10 %
10 %
t ZL
Waveform - A
GND
t LZ
VCC
50 %VCC
t ZH
50 %VCC
Waveform - B
VCC
90 %
50 %VCC
VOL + 0.3 V
t HZ
VOH – 0.3 V
VOL
VOH
GND
Notes: 1. tr ≤ 3 ns, tf ≤ 3 ns
2. Input waveform: PRR ≤ 1 MHz, duty cycle 50%
3. Waveform-A is for an output with internal conditions such that the output is low except when
disabled by the output control.
4. Waveform-B is for an output with internal conditions such that the output is high except when
disabled by the output control.
10
HD74LV126A
Package Dimensions
Unit: mm
10.06
10.5 Max
8
5.5
14
1
0.10 ± 0.10
1.42 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
7
+ 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
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-14DA
—
Conforms
0.23 g
11
HD74LV126A
Unit: mm
8.65
9.05 Max
8
1
7
*0.22 ± 0.03
0.20 ± 0.03
0.635 Max
1.75 Max
3.95
14
0.10
6.10 +– 0.30
1.08
*0.42 ± 0.08
0.40 ± 0.06
0.11
0.14 +– 0.04
0° – 8°
1.27
0.67
0.60 +– 0.20
0.15
0.25 M
*Dimension including the plating thickness
Base material dimension
12
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-14DN
Conforms
Conforms
0.13 g
HD74LV126A
Unit: mm
4.40
5.00
5.30 Max
14
8
1
7
0.65
*0.22
0.20 ± 0.06
1.0
0.13 M
6.40 ± 0.20
0.10
*Dimension including the plating thickness
Base material dimension
*0.17 ± 0.05
0.15 ± 0.04
1.10 Max
0.83 Max
0.07 +0.03
–0.04
+0.08
–0.07
0° – 8°
0.50 ± 0.10
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
TTP-14D
—
—
0.05 g
13
Cautions
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copyright, trademark, or other intellectual property rights for information contained in this document.
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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.
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products.
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