
SL74LV245
OCTAL BUS TRANSCEIVER (3-State)
By pinning SL74LV245 are compatible with SL74HC245 and SL74HCT245 series. Input voltage levels
are compat ible with standard CMOS levels.
• Output voltage levels are compatible with input levels of CMOS,
NMOS and TTL ICS
• Supply voltage range: 2.0 to 3.2 V
• Low input current: 1.0 µÀ; 0.1 µÀ at Ò = 25 °Ñ
• Output current 8 mÀ
• Latch current value: not less 150 mÀ at Ò = 125 °Ñ
• ESD acceptable values: not less than 2000 V as per HBM and
not less 200 V as per ÌÌ
•
BLOCK DIAGRAM
20
1
20
ORDERING INFORMATION
SL74LV245N Plastic DIP
SL74LV245D SOIC
TA = -40° to 125° C
for all packages
N SUFFIX
PLASTIC
D SUFFIX
SOIC
1
DIR
01
OE
PIN ASSIGNMENT
19
02
03
04
05
06
07
08
09
A
0
B
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
18
B
1
17
B
2
16
B
3
15
B
4
14
B
5
13
B
6
12
B
7
11
Pin 20=VCC
Pin 10 = GND
DIR 01
A
02
0
A
03
1
A
04
2
A
05
GND
3
A
06
4
A
07
5
A
08
6
A
09
7
10
245
FUNCTION TABLE
Inputs Inputs/Outputs
OE DIR À Â
L L A=B input
L H input B=A
H X Z Z
20
V
CC
OE
19
B
18
0
B
17
1
B
16
2
15
B
3
B
14
4
B
13
5
B
12
6
B
11
7
SLS
System Logic

SL74LV245
ABSOLUTE MAXIMUM RATINGS*
Symbol Parameter Rating Unit
VCC Supply voltage -0.5 to +5.0 V
IIK *1 Input diode current ±20 mÀ
IOK *2 Output diode current ±50 mÀ
IO *3 Output source or sink current ±35 mÀ
ICC VCC current ±70 mÀ
I
GND current ±70 mÀ
GND
PD Power dissipation per package:
Plastic DIP *4
SOIC *4
Tstg Storage temperature range -65 to +150 °C
*
In absolute max imum ratings modes functioning is not guaranteed. Vpon lifting the absolute
maximum ratings functioning is guaranteed at the recommended operating conditions.
*1 Provided VI < -0.5 V or VI > VCC + 0.5 V.
*2 Provided VO < -0.5 V or VO > VCC + 0.5 V.
*3 Provided -0.5 V < VO < VCC + 0.5 V.
*4 When operating in the temperature range of 70°Ñ to 125°C power dissipation value decreases:
- for Plastic DIP by 12 mW/°C
- for SOIC by 8 mW/°C
750
500
mW
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
VCC Supply voltage 1.2 3.6 V
VIN Input voltage 0 VCC V
V
Output voltage 0 VCC V
OUT
TA Operating ambient temperature range. For all
package types
tLH, tHL Input rise and fall times VCC =1.2 V
VCC =2.0 V
VCC =3.0 V
V
=3.6 V
CC
-40 125 °C
0 1000
700
500
400
ns
SLS
System Logic

SL74LV245
DC CHARACTERISTICS
Test VCC, Limits
Symbol Parameter conditions V 25°C -40°C to
85°C
min max min max min max
VIH HIGH level input
voltage
VIL LOW level output
voltage
VOH HIGH level output
voltage
VI = VIH or VIL
VOL LOW level output
voltage
VI = VIH or VIL
VO = VCC-0.1 V 1.2
2.0
3.0
3.6
VO =0.1 V 1.2
2.0
3.0
3.6
VI = VIH or VIL
IO = -50 µÀ
IO = -8 mÀ
VI = VIH or VIL
IO = 50 µÀ
IO = 8 mÀ
1.2
2.0
3.0
3.6
3.0 2.48 - 2.34 - 2.20 - V
1.2
2.0
3.0
3.6
3.0 - 0.33 - 0.4 - 0.5 V
0.9
1.4
2.1
2.5
-
-
-
-
1.1
1.92
2.92
3.52
-
-
-
-
-
-
-
-
0.3
0.6
0.9
1.1
-
-
-
-
0.09
0.09
0.09
0.09
0.9
1.4
2.1
2.5
-
-
-
-
1.0
1.9
2.9
3.5
-
-
-
-
-
-
-
-
0.3
0.6
0.9
1.1
-
-
-
-
0.1
0.1
0.1
0.09
125°C Unit
0.9
1.4
2.1
2.5
-
-
-
-
1.0
1.9
2.9
3.5
-
-
-
-
-
-
-
-
0.3
0.6
0.9
1.1
-
-
-
-
0.1
0.1
0.1
0.09
V
V
V
V
II Input current VI = VCC or 0 V 3.6 - ±0.1 - ±1.0 - ±1.0 µÀ
IOZ OFF-state current 3-state outputs
VI = V
VO =VCC or 0 V
ICC Supply current VI =VCC or 0 V
IO = 0 µÀ
System Logic
SLS
IL
or V
3.6 - ±0.5 - ±5 - ±10 µÀ
IH
3.6 - 8.0 - 80 - 160 µÀ

SL74LV245
AC CHARACTERISTICS(C
=50 pF, tLH = tHL = 6.0 ns)
L
Test VCC, Limits
Symbol Parameter conditions V 25°C -40°C to
85°C
min max min max min max
t
PHL, tPLH
from An to
Bn,
Propagation
delay
Figure 1 1.2
2.0
3.0
-
100
-
23
-
14
-
-
-
from Bn to An
t
PHZ tPLZ
from OE, DIR
to An, Bn
t
PZH tPZL
from OE to
An, Bn
t
THL, tTLH
3-state output
enable time
3-state output
disable time
HIGH-to-LOW
and LOW -to
HIGH transition
Figure 2 1.2
2.0
3.0
Figure 2 1.2
2.0
3.0
Figure 1 1.2
2.0
3.0
-
120
-
30
-
20
-
120
-
28
-
17
-
60
-
15
-
10
-
-
-
-
-
-
-
-
-
time
CI Input
capacitance
For inputs
01,19
3.0 - 7 - - - - pF
125
28
18
140
37
24
140
35
21
75
20
13
125°C Unit
-
140
-
-
-
-
-
-
-
-
-
-
-
34
21
160
43
28
160
43
26
90
24
15
ns
ns
C
Input
I/Î
capacitance
CPD Power
dissipation
capacitance (per
one channel)
For inputs/
outputs
02-09,
11-18
VI = 0 V or
VCC
3.0 - 20 - - - -
3.0 - 50 - - - -
SLS
System Logic

SL74LV245
An, Bn
Bn, An
0.1
t
LH
0.9
V
1
t
PLH
V
1
t
HL
0.9
V
1
0.1
t
PHL
0.9
0.9
0.1
t
THL
V1 = 0.5V
CC
t
TLH
Figure 1 -Time diagram of AC parameters control t
V
CC
GND
V
1
0.1
0 B
V
, t
PHL.
PLH
OE, DIR
An, Bn
An, Bn
t
HL
0.9
V
1
0.1
0.1
t
PZH
V
1
t
LH
0.9
V
1
t
PHZ
0.9
V
GND
CC
V
OH
0 B
V
CC
V
OL
t
PZL
t
PLZ
V
1
0.1
SLS
V1 = 0.5V
CC
Figure 2 - Time diagram of t
System Logic
PLZ
, t
PHZ
, t
PZL
, t
AC parameters control
PZH.

SL74LV245
2.3mm
1718
16
131415
19
On-chip marking
74LV245
1.99 mm
1
2
3
4 5
6
Drawing of the chip
Pads allocation Table
coordinates (counted from lower left corner), mm Pad
number
01 0.140 0.573 0.108 x 0.108
02 0.140 0.315 0.108 x 0.108
03 0.370 0.140 0.108 x 0.108
04 0.790 0.140 0.108 x 0.108
05 1.000 0.140 0.108 x 0.108
06 1.200 0.140 0.108 x 0.108
07 1.417 0.140 0.108 x 0.108
08 1.833 0.140 0.108 x 0.108
09 2.060 0.354 0.108 x 0.108
10 2.060 0.760 0.108 x 0.108
11 2.060 1.340 0.108 x 0.108
12 2.060 1.520 0.108 x 0.108
13 1.833 1.750 0.108 x 0.108
14 1.415 1.750 0.108 x 0.108
15 1.000 1.750 0.108 x 0.108
16 0.790 1.750 0.108 x 0.108
17 0.580 1.750 0.108 x 0.108
18 0.370 1.750 0.108 x 0.108
X Y
7
8
Pad size, mm
12
11
10
9
SLS
System Logic

19 0.140 1.544 0.108 x 0.108
20 0.140 1.375 0.108 x 0.108
SL74LV245
SLS
System Logic