74LV245
Octal bus transceiver; 3-state
Rev. 4 — 9 March 2016
Product data sheet
1. General description
The 74LV245 is a low-voltage Si-gate CMOS device that is pin and function compatible
with 74HC245 and 74HCT245.
The 74LV245 is an octal transceiver with non-inverting 3-state bus compatible outputs in
both send and receive directions. A send/receive (DIR) input controls direction, and an
output enable (OE) input makes easy cascading possible. Pin OE controls the outputs so
that the buses are effectively isolated.
2. Features and benefits
Wide operating voltage: 1.0 V to 5.5 V
Optimized for low voltage applications: 1.0 V to 3.6 V
Accepts TTL input levels between V
CC
= 2.7 V and V
CC
= 3.6 V
Typical output ground bounce < 0.8 V at V
CC
= 3.3 V and T
amb
= 25
C
Typical HIGH-level output voltage (V
OH
) undershoot: > 2 V at V
CC
= 3.3 V and
T
amb
= 25
C
ESD protection:
HBM JESD22-A114E exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from
40 C
to +85
C
and from
40 C
to +125
C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range
74LV245D
74LV245DB
74LV245PW
40 C
to +125
C
40 C
to +125
C
40 C
to +125
C
Name
SO20
SSOP20
TSSOP20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
Version
SOT163-1
SOT339-1
SOT360-1
Type number
Nexperia
74LV245
Octal bus transceiver; 3-state
4. Functional diagram
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
74LV245
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 4 — 9 March 2016
2 of 15
Nexperia
74LV245
Octal bus transceiver; 3-state
5. Pinning information
5.1 Pinning
Fig 3.
Pin configuration SO20
Fig 4.
Pin configuration SSOP20, TSSOP20
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
6. Functional description
Table 3.
Input
OE
L
L
H
[1]
Function selection
[1]
Output/input
DIR
L
H
X
An
A=B
input
Z
Bn
input
B=A
Z
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
74LV245
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 4 — 9 March 2016
3 of 15
Nexperia
74LV245
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
V
CC
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
T
amb
=
40 C
to +125
C
SO20, SSOP20, TSSOP20
[1]
[2]
[2]
Conditions
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
O
<
0.5
V or V
O
> V
CC
+ 0.5 V
V
O
=
0.5
V to (V
CC
+ 0.5 V)
[1]
[1]
Min
0.5
-
-
-
-
70
65
-
Max
+7.0
20
50
35
70
-
+150
500
Unit
V
mA
mA
mA
mA
mA
C
mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SO20 packages: above 70
C
the value of P
tot
derates linearly with 8 mW/K.
For (T)SSOP20 packages: above 60
C
the value of P
tot
derates linearly with 5.5 mW/K.
8. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
V
I
V
O
T
amb
t/V
Parameter
supply voltage
[1]
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CC
= 1.0 V to 2.0 V
V
CC
= 2.0 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
CC
= 3.6 V to 5.5 V
[1]
Conditions
Min
1.0
0
0
40
-
-
-
-
Typ
3.3
-
-
+25
-
-
-
-
Max
5.5
V
CC
V
CC
+125
500
200
100
50
Unit
V
V
V
C
ns/V
ns/V
ns/V
ns/V
The static characteristics are guaranteed from V
CC
= 1.2 V to V
CC
= 5.5 V, but LV devices are guaranteed to function down to
V
CC
= 1.0 V (with input levels GND or V
CC
).
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
= 2.0 V
V
CC
= 2.7 V to 3.6 V
V
CC
= 4.5 V to 5.5 V
74LV245
40 C
to +85
C
Min
0.9
1.4
2.0
0.7V
CC
Typ
[1]
-
-
-
-
Max
-
-
-
-
40 C
to +125
C
Unit
Min
0.9
1.4
2.0
0.7V
CC
©
Max
-
-
-
-
V
V
V
V
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 4 — 9 March 2016
4 of 15
Nexperia
74LV245
Octal bus transceiver; 3-state
Table 6.
Static characteristics
…continued
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
IL
LOW-level input voltage
Conditions
V
CC
= 1.2 V
V
CC
= 2.0 V
V
CC
= 2.7 V to 3.6 V
V
CC
= 4.5 V to 5.5 V
V
OH
HIGH-level output voltage
V
I
= V
IH
or V
IL
I
O
=
100 A;
V
CC
= 1.2 V
I
O
=
100 A;
V
CC
= 2.0 V
I
O
=
100 A;
V
CC
= 2.7 V
I
O
=
100 A;
V
CC
= 3.0 V
I
O
=
100 A;
V
CC
= 4.5 V
I
O
=
8
mA; V
CC
= 3.0 V
I
O
=
16
mA; V
CC
= 4.5 V
V
OL
LOW-level output voltage
V
I
= V
IH
or V
IL
I
O
= 100
A;
V
CC
= 1.2 V
I
O
= 100
A;
V
CC
= 2.0 V
I
O
= 100
A;
V
CC
= 2.7 V
I
O
= 100
A;
V
CC
= 3.0 V
I
O
= 100
A;
V
CC
= 4.5 V
I
O
= 8 mA; V
CC
= 3.0 V
I
O
= 16 mA; V
CC
= 4.5 V
I
I
I
OZ
input leakage current
OFF-state output current
V
I
= V
CC
or GND;
V
CC
= 5.5 V
V
I
= V
IH
or V
IL
;
V
O
= V
CC
or GND;
V
CC
= 5.5 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
per input; V
I
= V
CC
0.6 V;
V
CC
= 2.7 V to 3.6 V
-
-
-
-
-
-
-
-
-
0
0
0
0
0
0.25
0.35
-
-
-
0.2
0.2
0.2
0.2
0.40
0.55
1.0
5
-
-
-
-
-
-
-
-
-
-
0.2
0.2
0.2
0.2
0.50
0.65
1.0
10
V
V
V
V
V
V
V
A
A
-
1.8
2.5
2.8
4.3
2.4
3.6
1.2
2.0
2.7
3.0
4.5
2.82
4.2
-
-
-
-
-
-
-
-
1.8
2.5
2.8
4.3
2.2
3.5
-
-
-
-
-
-
-
V
V
V
V
V
V
V
40 C
to +85
C
Min
-
-
-
-
Typ
[1]
-
-
-
-
Max
0.3
0.6
0.8
0.3V
CC
40 C
to +125
C
Unit
Min
-
-
-
-
Max
0.3
0.6
0.8
V
V
V
0.3V
CC
V
I
CC
I
CC
C
I
C
I/O
[1]
supply current
additional supply current
input capacitance
input/output capacitance
-
-
-
-
-
-
3.5
10
20
500
-
-
-
-
-
-
160
850
-
-
A
A
pF
pF
Typical values are measured at T
amb
= 25
C.
74LV245
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 4 — 9 March 2016
5 of 15
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