74LVC245A-Q100;
74LVCH245A-Q100
Octal bus transceiver; 3-state
Rev. 3 — 11 September 2018
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 Ω)
•
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
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
Name
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
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
1
DIR
OE
2
A0
B0
3
A1
B1
4
A2
B2
5
A3
B3
6
A4
B4
7
A5
B5
8
A6
B6
9
A7
B7
11
12
13
14
15
2
3
4
5
6
7
8
9
mna175
19
18
17
19
G3
3EN1
3EN2
1
2
18
17
16
15
14
13
12
11
16
1
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. 2018. All rights reserved
Product data sheet
Rev. 3 — 11 September 2018
2 / 15
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
5. Pinning information
5.1. Pinning
74LVC245A-Q100
74LVCH245A-Q100
terminal 1
index area
A0
A1
A2
2
3
4
5
6
7
8
9
GND 10
B7 11
GND
(1)
20 V
CC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
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
A3
A4
A5
A6
A7
Transparent top view
GND 10
Fig. 3.
Pin configuration SOT163-1 (SO20)
and SOT360-1 (TSSOP20)
(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. 4.
Pin configuration SOT764-1 (DHVQFN20)
5.2. Pin description
Table 2. Pin description
Symbol
DIR
A0, A1, A2, A3, A4, A5, A6, A7
GND
B0, B1, B2, B3, B4, B5, B6, B7
OE
V
CC
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
6. Functional description
Table 3. Function selection
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high impedance OFF-state.
Inputs
OE
L
L
H
DIR
L
H
X
Inputs/outputs
An
An = Bn
inputs
Z
Bn
inputs
Bn = An
Z
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
1
DIR
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 11 September 2018
3 / 15
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-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 Parameter
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
[3]
Conditions
V
I
< 0 V
[1]
V
O
> V
CC
or V
O
< 0 V
output HIGH or LOW
output 3-state
V
O
= 0 V to V
CC
[2]
[2]
Min
-0.5
-50
-0.5
-
-0.5
-0.5
-
-
-100
-65
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
supply voltage
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
ground current
storage temperature
total power dissipation
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 packages: above 70 °C derate linearly with 8 mW/K.
For TSSOP20 packages: above 60 °C derate linearly with 5.5 mW/K.
For DHVQFN20 packages: above 60 °C derate linearly with 4.5 mW/K.
8. Recommended operating conditions
Table 5. Recommended operating conditions
Symbol Parameter
V
CC
V
I
V
O
T
amb
Δt/ΔV
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
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 11 September 2018
4 / 15
Nexperia
74LVC245A-Q100; 74LVCH245A-Q100
Octal bus transceiver; 3-state
9. Static characteristics
Table 6. Static characteristics
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
T
amb
= -40 °C to +85 °C
Min
V
IH
HIGH-level input V
CC
= 1.2 V
voltage
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 μA;
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 V
I
= V
IH
or V
IL
voltage
I
O
= 100 μA;
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
I
OZ
input leakage
current
V
I
= 5.5 V or GND;
V
CC
= 3.6 V
[2]
[3]
V
CC
- 0.2
1.2
1.8
2.2
2.4
2.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
±0.1
±0.1
-
-
-
-
-
-
0.2
0.45
0.6
0.4
0.55
±5
±5
V
CC
- 0.3
1.05
1.65
2.05
2.25
2.0
-
-
-
-
-
-
-
-
-
-
-
-
-
0.3
0.65
0.8
0.6
0.8
±20
±20
V
V
V
V
V
V
V
V
V
V
V
μA
μA
1.08
0.65V
CC
1.7
2.0
-
-
-
-
Typ
[1]
-
-
-
-
-
-
-
-
Max
-
-
-
-
0.12
0.35V
CC
0.7
0.8
T
amb
=
Unit
-40 °C to +125 °C
Min
1.08
0.65V
CC
1.7
2.0
-
-
-
-
Max
-
-
-
-
0.12
0.7
0.8
V
V
V
V
V
V
V
0.35V
CC
V
OFF-state output V
I
= V
IH
or V
IL
;
current
V
O
= 5.5 V or GND;
V
CC
= 3.6 V
power-off
leakage current
supply current
V
I
or V
O
= 5.5 V; V
CC
= 0.0 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 3.6 V
I
OFF
I
CC
ΔI
CC
C
I
C
I/O
-
-
-
-
-
±0.1
0.1
5
4.0
10
±10
10
500
-
-
-
-
-
-
-
±20
40
5000
-
-
μA
μA
μA
pF
pF
additional supply per input pin; V
I
= V
CC
- 0.6 V;
current
I
O
= 0 A; V
CC
= 2.7 V to 3.6 V
input capacitance V
CC
= 0 V to 3.6 V;
V
I
= GND to V
CC
input/output
capacitance
V
CC
= 0 V to 3.6 V;
V
I
= GND to V
CC
74LVC_LVCH245A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 11 September 2018
5 / 15
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