Page 1
INTEGRATED CIRCUITS
74LV126
Quad buffer/line driver (3-State)
Product specification
Supersedes data of 1997 Feb 03
IC24 Data Handbook
1998 Apr 28
Page 2
Philips Semiconductors Product specification
74L V126Quad buffer/line driver (3-State)
FEA TURES
• Wide operating voltage: 1.0 to 5.5 V
• Optimized for low voltage applications: 1.0 to 3.6 V
• Accepts TTL input levels between V
• Typical V
T
amb
• Typical V
T
amb
(output ground bounce) < 0.8 V at V
OLP
= 25°C
(output VOH undershoot) > 2 V at V
OHV
= 25°C
= 2.7 V and V
CC
CC
CC
CC
= 3.3 V,
= 3.3 V,
• Output capability: bus driver
• I
category: MSI
CC
QUICK REFERENCE DATA
GND = 0 V; T
= 25°C; tr = t
amb
SYMBOL
t
PHL/tPLH
C
I
C
PD
NOTE:
is used to determine the dynamic power dissipation (PD in µW)
1. C
PD
P
= CPD × V
D
f
= input frequency in MHz; CL = output load capacitance in pF;
i
= output frequency in MHz; VCC = supply voltage in V;
f
o
× V
(C
L
2
× fi (CL × V
CC
2
× fo) = sum of the outputs.
CC
≤ 2.5 ns
f
PARAMETER CONDITIONS TYPICAL UNIT
Propagation delay
nA to nY
Input capacitance 3.5 pF
Power dissipation capacitance per buffer
2
× fo) where:
CC
= 3.6 V
DESCRIPTION
The 74LV126 is a low-voltage Si-gate CMOS device that is pin and
function compatible with 74HC/HCT126.
The 74LV126 consists of four non-inverting buffers/line drivers with
3-state outputs. The 3-state outputs (nY) are controlled by the output
enable input (nOE). A LOW at nOE causes the outputs to assume a
high impedance OFF-state.
CL = 15 pF;
VCC = 3.3 V
VCC = 3.3 V;
VI = GND to V
CC
1
9 ns
23 pF
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. #
14-Pin Plastic DIL –40°C to +125°C 74LV126 N 74LV126 N SOT27-1
14-Pin Plastic SO –40°C to +125°C 74LV126 D 74LV126 D SOT108-1
14-Pin Plastic SSOP Type II –40°C to +125°C 74LV126 DB 74LV126 DB SOT337-1
14-Pin Plastic TSSOP Type I –40°C to +125°C 74LV126 PW 74LV126PW DH SOT402-1
PIN DESCRIPTION
PIN
NUMBER
1, 4, 10, 13 1OE – 4OE Output enable inputs (active HIGH)
2, 5, 9, 12 1A – 4A Data inputs
3, 6, 8, 11 1Y – 4Y Data outputs
7 GND Ground (0 V)
14 V
SYMBOL FUNCTION
CC
Positive supply voltage
FUNCTION TABLE
INPUTS OUTPUTS
nOE nA nY
H L L
H H H
L X Z
NOTES:
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
1998 Apr 28 853–1902 19290
2
Page 3
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
PIN CONFIGURATION
1
1OE
2
1A
3
1Y
4
2OE
5
2A
6
2Y
GND
7
LOGIC SYMBOL (IEEE/IEC)
2
1
EN1
5
4
9
10
12
13
1
(a) (b)
3
6
8
11
14
V
CC
4OE
13
4A
12
11
4Y
3OE
10
9
3A
8
3Y
SV00483
2
1
EN
5
4
EN
9
10
EN
12
13
EN
11
SV00485
74LV126
LOGIC SYMBOL
3
1A
1OE
2A
2OE
3A
3OE
4A
4OE
1Y
2Y
3Y
4Y
SV00484
6
8
11
nYnA
SV00486
2
1
5
4
9
10
12
13
LOGIC DIAGRAM (ONE GATE)
3
nOE
6
8
RECOMMENDED OPERA TING CONDITIONS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
V
V
V
T
amb
tr, t
NOTE:
1. The LV is guaranteed to function down to V
1998 Apr 28
DC supply voltage See Note 1 1.0 3.3 5.5 V
CC
Input voltage 0 – V
I
Output voltage 0 – V
O
Operating ambient temperature range in free air
Input rise and fall times
f
CC
See DC and AC
characteristics
VCC = 1.0V to 2.0V
VCC = 2.0V to 2.7V
VCC = 2.7V to 3.6V
VCC = 3.6V to 5.5V
= 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC = 5.5V.
–40
–40
–
–
–
–
–
–
–
–
3
CC
CC
+85
+125
500
200
100
50
ns/V
V
V
°C
Page 4
Philips Semiconductors Product specification
V
V
V
V
voltage all out uts
V
voltage; BUS driver
V
voltage all out uts
Quad buffer/line driver (3-State)
ABSOLUTE MAXIMUM RATINGS
1, 2
74LV126
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0 V).
SYMBOL
V
CC
"I
IK
"I
OK
"I
O
"I
GND
"I
CC
T
stg
P
TOT
DC supply voltage –0.5 to +7.0 V
DC input diode current VI < –0.5 or VI > VCC + 0.5V 20 mA
DC output diode current VO < –0.5 or VO > VCC + 0.5V 50 mA
DC output source or sink current
– bus driver outputs
DC VCC or GND current for types with
,
– bus driver outputs 70
Storage temperature range –65 to +150 °C
Power dissipation per package
– plastic DIL
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and TSSOP)
PARAMETER CONDITIONS RATING UNIT
–0.5V < VO < VCC + 0.5V
35
mA
mA
for temperature range: –40 to +125°C
above +70°C derate linearly with 12 mW/K
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
750
500
400
mW
NOTES:
1. Stresses beyond those listed 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 .
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions, voltages are referenced to GND (ground = 0 V)
SYMBOL P ARAMETER TEST CONDITIONS
MIN TYP
VCC = 1.2 V 0.9 0.9
HIGH level Input
IH
voltage
LOW level Input
IL
voltage
OH
HIGH level output
;
V
HIGH level output
OH
V
OL
;
outputs
LOW level output
;
VCC = 2.0 V 1.4 1.4
VCC = 2.7 to 3.6 V 2.0 2.0
VCC = 4.5 to 5.5 V 0.7<V
CC
VCC = 1.2 V 0.3 0.3
VCC = 2.0 V 0.6 0.6
VCC = 2.7 to 3.6 V 0.8 0.8
VCC = 4.5 to 5.5 0.3<V
VCC = 1.2 V; VI = VIH or V
VCC = 2.0 V; VI = VIH or V
VCC = 2.7 V; VI = VIH or V
p
VCC = 3.0 V; VI = VIH or V
VCC = 4.5 V; VI = VIH or V
VCC = 3.0 V; VI = VIH or V
VCC = 4.5 V; VI = VIH or V
VCC = 1.2 V; VI = VIH or V
VCC = 2.0 V; VI = VIH or V
VCC = 2.7 V; VI = VIH or V
p
VCC = 3.0 V; VI = VIH or V
VCC = 4.5 V; VI = VIH or V
–IO = 100µA 1.2
IL;
–IO = 100µA 1.8 2.0 1.8
IL;
–IO = 100µA 2.5 2.7 2.5
IL;
–IO = 100µA 2.8 3.0 2.8
IL;
–IO = 100µA 4.3 4.5 4.3
IL;
–IO = 8mA 2.40 2.82 2.20
IL;
–IO = 16mA 3.60 4.20 3.50
IL;
IO = 100µA 0
IL;
IO = 100µA 0 0.2 0.2
IL;
IO = 100µA 0 0.2 0.2
IL;
IO = 100µA 0 0.2 0.2
IL;
IO = 100µA 0 0.2 0.2
IL;
LIMITS
-40°C to +85°C -40°C to +125°C
1
MAX MIN MAX
0.7<V
CC
CC
0.3<V
UNIT
CC
V
V
1998 Apr 28
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Philips Semiconductors Product specification
V
voltage; BUS driver
V
CONDITION
P
nA to nY
3 state out ut
Y
3 state out ut
Y
Quad buffer/line driver (3-State)
DC ELECTRICAL CHARACTERISTICS (Continued)
Over recommended operating conditions, voltages are referenced to GND (ground = 0 V)
SYMBOL P ARAMETER TEST CONDITIONS
MIN TYP
LOW level output
OL
I
I
I
OZ
I
CC
;
outputs
Input leakage
current
3-State output
OFF-state current
Quiescent supply
current; MSI
VCC = 3.0 V; VI = VIH or V
VCC = 4.5 V; VI = VIH or V
VCC = 5.5 V; VI = VCC or GND 1.0 1.0 µA
VCC = 5.5 V; VI = VIH or V
VO = VCC or GND
VCC = 5.5 V; VI = VCC or GND; IO = 0 20.0 160 µA
Additional
CC
quiescent supply
current per input
VCC = 2.7 V to 3.6 V; VI = VCC – 0.6 V 500 850 µA
∆I
NOTE:
1. All typical values are measured at T
amb
= 25°C.
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 500Ω
SYMBOL PARAMETER WAVEFORM
t
PHL/tPLH
t
PZH/tPZL
t
PHZ/tPLZ
NOTES:
1. Unless otherwise stated, all typical values are measured at T
2. Typical values are measured at V
ropagation delay
3-state output
enable time
nOE to n
3-state output
disable time
nOE to n
Figures 1, 2
Figures 1, 2
Figures 1, 2
= 3.3 V.
CC
IO = 8mA 0.20 0.40 0.50
IL;
IO = 16mA 0.35 0.55 0.65
IL;
IL;
VCC(V) MIN TYP
1.2 55
2.0 19 24 31
2.7 14 18 23
3.0 to 3.6 10
4.5 to 5.5 12 15
1.2 75
2.0 26 31 39
2.7 19 23 29
3.0 to 3.6 14
4.5 to 5.5 15 19
1.2 65
2.0 24 32 39
2.7 28 24 29
3.0 to 3.6 14
4.5 to 5.5 17 21
= 25°C
amb
74LV126
LIMITS
-40°C to +85°C -40°C to +125°C
1
MAX MIN MAX
5 10 µA
LIMITS
–40 to +85 °C –40 to +125 °C
1
MAX MIN MAX
2
14 18
2
18 23
2
20 24
UNIT
UNIT
ns
ns
ns
1998 Apr 28
5
Page 6
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
AC WAVEFORMS
VM = 1.5 V at VCC ≥ 2.7 V and ≤ 3.6 V;
V
= 0.5 × VCC at VCC < 2.7 V and ≥ 4.5 V;
M
and VOH are the typical output voltage drop that occur with the
V
OL
output load.
VX = VOL + 0.3 V at VCC ≥ 2.7 V and ≤3.6 V;
V
= VOL + 0.1 × VCC at VCC < 2.7 V and ≥ 4.5 V.
X
V
= VOH – 0.3 V at VCC ≥ 2.7 V and ≤ 3.6 V;
Y
= VOH – 0.1 × VCC at VCC < 2.7 V and ≥ 4.5 V.
V
Y
V
I
CC
V
M
t
PHL
V
M
V
I
V
M
t
PLZ
V
t
PHZ
outputs
enabled
X
V
Y
outputs
disabled
t
PZH
t
PZL
V
M
V
M
outputs
enabled
SV00488
t
PLH
SV00487
nA INPUT
GND
V
OH
nY OUTPUT
V
OL
Figure 1. Input (nA, nB) to output (nY) propagation delays
nOE INPUT
GND
V
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
OL
V
OH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
Figure 2. 3-state enable and disable times.
TEST CIRCUIT
V
PULSE
GENERATOR
DEFINITIONS
RL = Load resistor
= Load capacitance includes jig and probe capacitiance.
C
L
RT = Termination resistance should be equal to Z
SWITCH POSITION
TEST
t
PLH/tPHL
t
PLZ/tPZL
t
PHZ/tPZH
Figure 3. Load circuitry for switching times.
I
R
T
Test Circuit for Outputs
S
1
Open
2 * V
CC
GND
V
CC
D.U.T.
V
CC
< 2.7V V
2.7–3.6V
4.5V
V
O
C
L
of pulse generators.
OUT
V
I
CC
2.7V
V
CC
74LV126
2 * V
Open
GND
R
= 1k
L
R
= 1k
50 pF
L
SV00896
CC
1998 Apr 28
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Page 7
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1
74LV126
1998 Apr 28
7
Page 8
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
SO14: plastic small outline package; 14 leads; body width 3.9 mm SOT108-1
74LV126
1998 Apr 28
8
Page 9
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
SSOP14: plastic shrink small outline package; 14 leads; body width 5.3 mm SOT337-1
74LV126
1998 Apr 28
9
Page 10
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
TSSOP14: plastic thin shrink small outline package; 14 leads; body width 4.4 mm SOT402-1
74LV126
1998 Apr 28
10
Page 11
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
74LV126
NOTES
1998 Apr 28
11
Page 12
Philips Semiconductors Product specification
Quad buffer/line driver (3-State)
74LV126
DEFINITIONS
Data Sheet Identification Product Status Definition
Objective Specification
Preliminary Specification
Product Specification
Formative or in Design
Preproduction Product
Full Production
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICA TIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code Date of release: 05-96
Document order number: 9397-750-04421
1998 Apr 28
12
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