IN74LV245 [INTEGRAL]
OCTAL BUS TRANSCEIVER (3-STATE); 八路总线收发器（三态）
| 型号： | IN74LV245 |
| 厂家： | 
INTEGRAL CORP. |
| 描述： | OCTAL BUS TRANSCEIVER (3-STATE) |
| 文件： | 总6页 (文件大小：144K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IN74LV245
OCTAL BUS TRANSCEIVER (3-STATE)
By pinning IN74LV245 are compatible with IN74HC245A and
IN74HCT245A series. Input voltage levels are compatible with
standard CMOS levels.
N SUFFIX
PLASTIC
• Output voltage levels are compatible with input levels of CMOS,
NMOS and TTL ICS
• Supply voltage range: 2.0 to 3.2 V
20
• Low input current: 1.0 µА; 0.1 µА at Т = 25 °С
1
D SUFFIX
SOIC
• Output current 8 mА
20
• Latch current value: not less 150 mА at Т = 125 °С
1
• ESD acceptable values: not less than 2000 V as per HBM and
ORDERING INFORMATION
IN74LV245N Plastic DIP
IN74LV245D SOIC
not less 200 V as per ММ
•
TA = -40° to 125° C
for all packages
PIN ASSIGNMENT
BLOCK DIAGRAM
DIR
DIR
A0
VCC
OE
B0
01
02
03
04
05
06
07
08
09
10
20
19
18
17
16
15
14
13
12
11
01
OE
19
A1
A0
A1
A2
A3
A4
A5
A6
A7
02
03
04
05
06
07
08
09
A2
B1
B0
B1
B2
B3
B4
B5
B6
B7
18
17
16
15
14
13
12
11
A3
B2
245
A4
B3
A5
B4
A6
B5
A7
B6
GND
B7
FUNCTION TABLE
Inputs
Inputs/Output
s
OE
DIR
L
А
A=B
input
Z
В
input
B=A
Z
L
L
Pin 20=VCC
H
X
Pin 10 = GND
H
1
IN74LV245
ABSOLUTE MAXIMUM RATINGS*
Symbol
Parameter
Rating
-0.5 to +5.0
±20
Unit
V
VCC
Supply voltage
IIK *1
Input diode current
Output diode current
mА
mА
mА
mА
mА
mW
2
IOK
*
±50
IO *3
ICC
IGND
PD
Output source or sink current
VCC current
±35
±70
GND current
±70
Power
Plastic
SOIC *4
dissipation
per
DIP
package:
4
*
750
500
-65 to +150
Tstg
Storage temperature range
°C
*
In absolute maximum 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°С to 125°C power dissipation value
decreases:
- for Plastic DIP by 12 mW/°C
- for SOIC by 8 mW/°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Min
1.2
0
Max
3.6
VCC
VCC
125
Unit
V
Supply voltage
Input voltage
Output voltage
VIN
V
VOUT
TA
0
V
Operating ambient temperature range. For all
package types
-40
°C
tLH, tHL
Input rise and fall times
VCC =1.2 V
0
1000
700
500
400
ns
VCC =2.0 V
VCC =3.0 V
VCC =3.6 V
2
IN74LV245
DC CHARACTERISTICS
Symbol Parameter
Test
VCC,
Limits
-40°C to
85°C
conditions
V
Uni
t
25°C
125°C
min max min max min max
VIH
VIL
HIGH
level VO
0.1 V
=
VCC- 1.2 0.9
2.0 1.4
-
0.9
1.4
2.1
2.5
-
-
0.9
1.4
2.1
2.5
-
-
V
V
V
input voltage
-
-
-
3.0 2.1
-
-
-
-
-
-
3.6 2.5
LOW
level VO =0.1 V
1.2
2.0
3.0
3.6
-
-
-
-
0.3
0.6
0.9
1.1
-
0.3
0.6
0.9
1.1
-
0.3
0.6
0.9
1.1
-
output voltage
-
-
-
-
-
-
VOH HIGH
level VI = VIH or VIL 1.2 1.1
1.0
1.9
2.9
3.5
2.34
1.0
1.9
2.9
3.5
2.20
output voltage
2.0 1.92
3.0 2.92
3.6 3.52
-
-
-
IO = -50 µА
-
-
-
-
-
-
VI = VIH or VIL 3.0 2.48
-
-
-
V
V
IO = -8 mА
VOL
LOW
level VI = VIH or VIL 1.2
-
-
-
-
-
0.09
0.09
0.09
0.09
0.33
-
-
-
-
-
0.1
0.1
-
-
-
-
-
0.1
0.1
output voltage
2.0
3.0
3.6
IO = 50 µА
0.1
0.1
0.09
0.4
0.09
0.5
VI = VIH or VIL 3.0
IO = 8 mА
V
II
Input current
VI = VCC or 3.6
0 V
-
-
-
-
-
-
±0.1
±0.5
±1.0
±5
±1.0 µА
±10 µА
IOZ
OFF-state
current
3-state
3.6
outputs
VI = VIL or VIH
VO =VCC or
0 V
ICC
Supply current VI =VCC or 3.6
-
8.0
-
80
-
160
µА
0 V
IO = 0 µА
3
IN74LV245
AC CHARACTERISTICS(CL=50 pF, tLH = tHL = 6.0 ns)
Test
VCC,
V
Limits
-40°C to
85°C
Symbol
Parameter condition
s
Uni
t
25°C
125°C
max
min ma min max mi
x
n
-
tPHL, tPLH
Propagation
Figure 1
1.2
2.0
3.0
-
-
-
100
23
-
-
-
125
28
140
34
ns
ns
from An to delay
-
Bn,
from Bn to
An
14
18
-
21
tPHZ tPLZ
3-state output Figure 2
1.2
2.0
3.0
-
-
-
120
30
-
-
-
140
37
-
-
-
160
43
from OE, enable time
DIR to An,
Bn
20
24
28
tPZH tPZL
3-state output Figure 2
1.2
2.0
3.0
1.2
2.0
3.0
-
-
-
-
-
-
120
28
17
60
15
10
-
-
-
-
-
-
140
35
21
75
20
13
-
-
-
-
-
-
160
43
26
90
24
15
from OE to disable time
An, Bn
tTHL, tTLH
HIGH-to-LOW Figure 1
and LOW-to
HIGH
transition time
Input
CI
For inputs 3.0
01,19
7
-
-
-
-
-
-
-
-
pF
-
-
capacitance
Input
CI/О
For
3.0
20
capacitance
inputs/
outputs
02-09,
11-18
CPD
Power
VI = 0 V or 3.0
VCC
50
-
-
-
-
-
dissipation
capacitance
(per
one
channel)
4
IN74LV245
tLH
tHL
VCC
0.9
0.9
V1
An, Bn
V1
GND
0.1
0.1
tPL
tPH
H
L
0.9
0.9
V1
V1
0.1
Bn, An
0 V
0.1
tTHL
tTLH
V1 = 0.5VCC
Figure 1 -Time diagram of AC parameters control tPLH, tPHL.
tHL
tLH
VCC
0.9
0.9
OE, DIR
V1
V1
GND
0.1
tPZ
0.1
VOH
0.9
tPH
H
V1
Z
An, Bn
An, Bn
0 V
VCC
tPLZ
V1
tPZL
0.1
VOL
V1 = 0.5VCC
Figure 2 - Time diagram of tPLZ, tPHZ, tPZL, tPZH. AC parameters control
5
IN74LV245
Drawing of the chip
2.3mm
16
17
15
18
14
13
19
12
11
On-chip marking
74LV245
10
9
1
2
7
4 5
6
3
8
Pads allocation Table
Pad
coordinates (counted from lower left corner),
mm
Pad size, mm
number
X
Y
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
0.140
0.140
0.370
0.790
1.000
1.200
1.417
1.833
2.060
2.060
2.060
2.060
1.833
1.415
1.000
0.790
0.580
0.370
0.140
0.140
0.573
0.315
0.140
0.140
0.140
0.140
0.140
0.140
0.354
0.760
1.340
1.520
1.750
1.750
1.750
1.750
1.750
1.750
1.544
1.375
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
0.108 x 0.108
6
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