74LVC245A-Q100;
74LVCH245A-Q100
Octal bus transceiver; 3-state
Rev. 2 — 10 February 2014
Product data sheet
1. General description
The 74LVC245A-Q100; 74LVCH245A-Q100 are 8-bit transceivers featuring non-inverting
3-state bus compatible outputs in both send and receive directions. The device features
an output enable (OE) input for easy cascading and a send/receive (DIR) input for
direction control. OE controls the outputs so that the buses are effectively isolated.
Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be
applied to the outputs. These features allow the use of these devices in mixed
3.3 V and 5 V applications.
The 74LVCH245A-Q100 bus hold on data inputs eliminates the need for external pull-up
resistors to hold unused inputs.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from
40 C
to +85
C
and from
40 C
to +125
C
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Inputs accept voltages up to 5.5 V
High-impedance when V
CC
= 0 V
Bus hold on all data inputs (74LVCH245A-Q100 only)
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0
)
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
3. Ordering information
Table 1.
Ordering information
Package
Temperature range Name
74LVC245AD-Q100
74LVCH245AD-Q100
74LVC245APW-Q100
74LVCH245APW-Q100
74LVC245ABQ-Q100
74LVCH245ABQ-Q100
40 C
to +125
C
40 C
to +125
C
TSSOP20
40 C
to +125
C
SO20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic thin shrink small outline package;
20 leads; body width 4.4 mm
Version
SOT163-1
SOT360-1
SOT764-1
Type number
DHVQFN20 plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads;
20 terminals; body 2.5
4.5
0.85 mm
4. Functional diagram
DIR
OE
2
A0
B0
3
A1
B1
4
A2
B2
5
A3
B3
6
A4
B4
7
A5
4
B5
8
A6
6
B6
9
A7
8
B7
11
9
mna175
1
19
18
17
19
16
1
G3
3EN1
3EN2
15
2
14
3
1
2
18
17
16
15
14
13
12
11
13
5
12
7
mna174
Fig 1.
Logic diagram
Fig 2.
IEC logic symbol
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 10 February 2014
2 of 16
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
5. Pinning information
5.1 Pinning
74LVC245A-Q100
74LVCH245A-Q100
terminal 1
index area
20 V
CC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
GND
(1)
GND 10
B7 11
13 B5
12 B6
aaa-003143
©
74LVC245A-Q100
74LVCH245A-Q100
DIR
A0
A1
A2
A3
A4
A5
A6
A7
1
2
3
4
5
6
7
8
9
20 V
CC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
aaa-003142
A0
A1
A2
A3
A4
A5
A6
A7
2
3
4
5
6
7
8
9
GND 10
Transparent top view
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 3.
Pin configuration for SO20 and TSSOP20
Fig 4.
Pin configuration for DHVQFN20
5.2 Pin description
Table 2.
Symbol
DIR
A0 to A7
GND
B0 to B7
OE
V
CC
Pin description
Pin
1
2, 3, 4, 5, 6, 7, 8, 9
10
18, 17, 16, 15, 14, 13, 12, 11
19
20
Description
direction control
data input/output
ground (0 V)
data input/output
output enable input (active LOW)
supply voltage
1
DIR
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 10 February 2014
3 of 16
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
6. Functional description
Table 3.
Inputs
OE
L
L
H
[1]
Function selection
[1]
Inputs/outputs
DIR
L
H
X
An
An = Bn
inputs
Z
Bn
inputs
Bn = An
Z
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high impedance OFF-state.
7. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
[3]
Parameter
supply voltage
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
V
I
< 0 V
[1]
Min
0.5
50
0.5
-
[2]
[2]
Max
+6.5
-
+6.5
50
V
CC
+ 0.5
+6.5
50
100
-
+150
500
Unit
V
mA
V
mA
V
V
mA
mA
mA
C
mW
V
O
> V
CC
or V
O
< 0 V
output HIGH or LOW
output 3-state
V
O
= 0 V to V
CC
0.5
0.5
-
-
100
65
T
amb
=
40 C
to +125
C
[3]
-
The minimum input voltage ratings may be exceeded if the input current ratings are observed.
The output voltage ratings may be exceeded if the output current ratings are observed.
For SO20 package: above 70
C
derate linearly with 8 mW/K.
For TSSOP20 package: above 60
C
derate linearly with 5.5 mW/K.
For DHVQFN20 package: above 60
C
derate linearly with 4.5 mW/K.
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 10 February 2014
4 of 16
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
8. Recommended operating conditions
Table 5.
Symbol
V
CC
V
I
V
O
T
amb
t/V
Recommended operating conditions
Parameter
supply voltage
functional
input voltage
output voltage
ambient temperature
input transition rise and fall rate
output HIGH or LOW
output 3-state
in free air
V
CC
= 1.2 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
Conditions
Min
1.65
1.2
0
0
0
40
0
0
Typ
-
-
-
-
-
-
-
-
Max
3.6
3.6
5.5
V
CC
5.5
+125
20
10
Unit
V
V
V
V
V
C
ns/V
ns/V
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
IH
HIGH-level
input voltage
Conditions
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
IL
LOW-level
input voltage
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
OH
HIGH-level
output
voltage
V
I
= V
IH
or V
IL
I
O
=
100 A;
V
CC
= 1.65 V to 3.6 V
I
O
=
4
mA; V
CC
= 1.65 V
I
O
=
8
mA; V
CC
= 2.3 V
I
O
=
12
mA; V
CC
= 2.7 V
I
O
=
18
mA; V
CC
= 3.0 V
I
O
=
24
mA; V
CC
= 3.0 V
V
OL
LOW-level
output
voltage
V
I
= V
IH
or V
IL
I
O
= 100
A;
V
CC
= 1.65 V to 3.6 V
I
O
= 4 mA; V
CC
= 1.65 V
I
O
= 8 mA; V
CC
= 2.3 V
I
O
= 12 mA; V
CC
= 2.7 V
I
O
= 24 mA; V
CC
= 3.0 V
I
I
input leakage V
I
= 5.5 V or GND;
current
V
CC
= 3.6 V
[2]
40 C
to +85
C
Min
1.08
1.7
2.0
-
-
-
-
V
CC
0.2
1.2
1.8
2.2
2.4
2.2
-
-
-
-
-
-
Typ
[1]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.1
-
-
-
-
0.12
0.7
0.8
-
-
-
-
-
-
0.2
0.45
0.6
0.4
0.55
5
Max
40 C
to +125
C
Min
1.08
1.7
2.0
-
-
-
V
CC
0.3
1.05
1.65
2.05
2.25
2.0
-
-
-
-
-
-
-
-
-
0.12
0.7
0.8
-
-
-
-
-
-
0.3
0.65
0.8
0.6
0.8
20
0.65
V
CC
-
Max
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
0.65
V
CC
-
0.35
V
CC
-
0.35
V
CC
V
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 2 — 10 February 2014
5 of 16
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