IK Semicon IN74VHCT126D Quad 3-state noninverting buffer Datasheet

TECHNICAL DATA
Quad 3-State Noninverting Buffers
IN74VHCT126 is high-speed logic IC made by CMOS
technology and designed for use in high-performance
calculating systems with a wide supply voltage range.
As for operation speed, IN74VHCT126 can be compared
with equivalent bipolar ICs based on Schottky TTL and two
times surpasses ICs of IN74НС series.
IN74VHCT126 tolerates operation under conditions when
voltage on input & output is exceeded up to 7V without
affecting characteristics and IC reliability. This possibility
allows to use IN74VHCT126 in radio-electronic devices for
interfacing with supply voltages 5V and 3V, eliminate IC
failure under supply voltage source emergency outage.
Use of output edge shaping block in the microcircuit
allows to reduce noise amplitude of noises when switching
outputs into the same state simultaneously.
Input levels of IN74VHCT126 are compatible with TTL level
and output levels with CMOS levels.
IN74VHCT126
ORDERING INFORMATION
IN74VHCT126N Plastic
IN74VHCT126D SOIC
TA = -40° to 85° C for all
packages
Features:
•
•
•
•
•
•
•
•
•
•
Supply voltage range 4.5 to 5.5 V.
Output current 8 mA.
Low consumption current: 0.2 mkA (typical value) at Та = 25 °С.
Latchup current not less than 300 mA at Та = 85 °С.
Tolerable value of static potential not less than 2000 V as per human body model
(HBM) and not less than 200 V as per machine model (ММ).
Ambient operation temperature minus 40 to plus 85 °С.
Balanced signal propagation delay.
Ensures voltage exceeding mode on input
Low noise level at the simultaneous switching of outputs in the same state:
VOLP = 0.8 V (max).
For pins and functions, compatible with IN74HCT126.
.
1
IN74VHCT126
IN74VHCT126 truth table
Input
Output
G
A
Y
L
X
Z
H
L
L
H
H
H
Note – H - high voltage level;
L – low voltage level;
X - any voltage level (low or high);
Z - output in the third
Pinout
G1
01
14
VCC
A1 02
13
G4
Y1 03
12
A4
G2 04
11
Y4
A2 05
10
G3
Y2 06
09
A3
GND 07
08
Y3
Pins description in IN74VHCT126
Pin No.
01
02
03
04
05
06
07
08
09
10
11
12
13
14
Symbol
G1
A1
Y1
G2
A2
Y2
GND
Y3
A3
G3
Y4
A4
G4
VCC
Description
Input ENABLE OUTPUT
Input
Output
Input ENABLE OUTPUT
Input
Output
Common output
Output
Input
Input ENABLE OUTPUT
Output
Input
Input ENABLE OUTPUT
Supply output from voltage source
2
IN74VHCT126
Absolute maximum conditions*
Parameter, unit
Supply voltage, V
Input voltage, V
Output voltage, V
Output voltage, V
Input diode current, mA
Current of common output and supply
output, mA
Output current, mA
Output diode current, mA
Dissipated power, mW
Symbol
VCC
Vin
Vout
Vout1
Iik
Icc
Value
min
-0.5
-0.5
-0.5
-0.5
-
max
7.0
7.0
VCC + 0.5B
7.0
-20
±50
±25
±20
180
Iout
Iok
Pd
*Under absolute maximum conditions operation of microcircuit is not guaranteed. Operation is
guaranteed under maximum conditions
Maximum conditions
Parameter, unit
Supply voltage, V
Input voltage,V
Output voltage, V
Output voltage, V
Output current, mA
Input rise and fall time, ns/V
* Outputs in the third state
Symbol
VCC
Vin
Vout
Vout1
Iout
tLH, tHL
Value
min
4.5
0
0
0
0
max
5.5
VCC
VCC
5.5*
±8.0
20
3
IN74VHCT126
DC electrical characteristics
Value
Symbol
Parameter
Test conditions
VIH
High input voltage
-
VIL
Low input voltage
-
VOH
High output voltage VI = VIH or VIL
IO = -50 mkA
VI = VIH or VIL;
IO = -8 mA
Low output voltage VI = VIH or VIL
IO = 50 mkA
VI = VIH or VIL
IO = 8 mA
Output current in VI = 2.0V
"off" state
VO = VCC or 0V
Input current
VI = 0 V or VCC
High level input VI = 5.5V
current
Consumption current VI =VCC or 0V
TTL-input
VI = 3.4 V
consumption current
VOL
IOZ
II
IIH1
ICC
ICCT
25 °C
VCC,
V
min
2.0
max
-
–40
to 85 °C
min
max
2.0
-
Unit
4.5 –
5.5
4.5 –
5.5
4.5
5.5
V
–
0.8
–
0.8
4.42
5.42
–
–
4.4
5.4
–
–
4.5
3.94
–
3.80
–
4.5
5.5
–
–
0.09
0.09
–
–
0.1
0.1
4.5
–
0.36
–
0.44
5.5
-
±0.25
-
±2.5
uA
5.5
0
-
±0.1
±0.1
-
±1.0
±1.0
uA
5.5
5.5
-
4.0
1.35
-
40.0
1.5
mA
4
IN74VHCT126
AC electrical characteristics (tLH = tHL = 3.0 ns)
Value
Symbol
Parameter
Test conditions
tPHL, tPLH Propagation delay time Fig 1
when switching "on",
"off"
tPHZ , tPLZ Propagation delay time Fig 2
under transition from
high , low level into "off"
state
tPZH , tPZL Propagation delay time Fig 2
under transition from
«off» state into high, low
level
delays tOSLH, Propagation
between
tOSHL difference
outputs
CL,
pF
VCC, V
25 °C
–40
to 85 °C
min max
–
6.5
–
8.5
Unit
5.0 ± 0.5 15
50
min
–
–
max
5.5
7.5
5.0 ± 0.5 50
–
8.8
–
10.0
ns
5.0 ± 0.5 15
50
–
–
5.1
7.1
–
–
6.0
8.0
ns
5.0 ± 0.5 50
–
1.0
–
1.0
ns
ns
Capacitance characteristics
Symbol
CI
CO
CРD
Parameter
Input capacity
Output capacity
Dynamic capacity
Test conditions
VI = 0 V orVCC
Value
25 °C
min
max
10
12
30
VCC, V
5.0
5.0
5.0
Unit
pF
pF
pF
Noise characteristics (CL = 50 pF)
Parameter
Symbol
VOLP
VOLV
VIHD
VILD
Positive noise of low output voltage
Negative noise of low output
voltage
Input dynamic high voltage
Input dynamic low voltage
Unit
Value
VCC, V
5.0
5.0
min
-0.8
5.0
5.0
3.5
max
0.8
-
V
1.5
5
IN74VHCT126
- Time diagram of input and output pulses
tHL
tLH
0.9
0.9
G
3.0 V
0.5
0.5
0V
0.1
0.1
tPZH
VOH
0.9
tPHZ
Y
1.5 V
0
V
VCC
tPLZ
Y
tPZL
1.5 V
0.1
VOL
Fig. 1
tLH
tHL
0.9
A
0.5
3.0 V
0.9
0.5
0.1
GND
0.1
tPHL
tPLH
VCC
Y
1.5 V
1.5 V
0V
Fig.2
6
IN74VHCT126
N SUFFIX PLASTIC DIP
(MS - 001AA)
A
Dimension, mm
8
14
B
7
1
Symbol
MIN
MAX
A
18.67
19.69
B
6.1
7.11
5.33
C
F
L
C
-T- SEATING
PLANE
N
G
M
K
J
H
D
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 - 012AB)
Dimension, mm
A
14
8
H
B
1
G
P
7
R x 45
C
-TK
D
SEATING
PLANE
M
Symbol
MIN
MAX
A
8.55
8.75
B
3.8
4
C
1.35
1.75
D
0.33
0.51
F
0.4
1.27
G
1.27
H
5.27
J
0°
8°
K
0.1
0.25
1. Dimensions A and B do not include mold flash or protrusion.
M
0.19
0.25
2. Maximum mold flash or protrusion 0.15 mm (0.006) per side
for A; for B ‑ 0.25 mm (0.010) per side.
P
5.8
6.2
R
0.25
0.5
J
0.25 (0.010) M T C M
NOTES:
F
7
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