IN74ACT245DW
更新时间：2024-09-18 02:21:05
品牌：INTEGRAL
描述：OCTAL 3-STATE NONINVERTING BUFFER/LINE DRIVER/LINE RECEIVER
概述
数据手册IN74ACT245DW 概述
OCTAL 3-STATE NONINVERTING BUFFER/LINE DRIVER/LINE RECEIVER 八路三态非反相缓冲器/线路驱动器/线接收器
IN74ACT245DW 数据手册
通过下载IN74ACT245DW数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载IN74ACT245
OCTAL 3-STATE NONINVERTING
BUS TRANSCEIVER
High-Speed Silicon-Gate CMOS
The IN74ACT245 is identical in pinout to the LS/ALS245,
HC/HCT245. The IN74ACT245 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS
inputs.
The IN74ACT245 is a 3-state noninverting transceiver that is
used for 2-way asynchronous communication between data
buses. The device has an active-low Output Enable pin, which is
used to place the I/O ports into high-impedance states. The
Direction control determines whether data flows from A to B or
from B to A.
• TTL/NMOS Compatible Input Levels
ORDERING INFORMATION
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA; 0.1 µA @ 25°C
• Outputs Source/Sink 24 mA
IN74ACT245N Plastic
IN74ACT245DW SOIC
TA = -40° to 85° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Control Inputs
Output Direction
Enable
Operation
Transmitted
PIN 20=VCC
PIN 10 = GND
L
L
H
X
Data
from Bus B to Bus A
L
Data
Transmitted
from Bus A to Bus B
Buses Isolated (High
Impedance State)
H
X = don’t care
1
IN74ACT245
MAXIMUM RATINGS*
Symbol
Parameter
Value
-0.5 to +7.0
-0.5 to VCC +0.5
-0.5 to VCC +0.5
±20
Unit
V
VCC
VIN
VOUT
IIN
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
V
V
mA
mA
mA
mW
IOUT
DC Output Sink/Source Current, per Pin
DC Supply Current, VCC and GND Pins
±50
ICC
PD
±50
750
Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
500
Tstg
TL
Storage Temperature
-65 to +150
°C
°C
Lead Temperature, 1 mm from Case for 10
Seconds
260
(Plastic DIP or SOIC Package)
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Min
4.5
0
Max
5.5
Unit
V
DC Supply Voltage (Referenced to GND)
VIN, VOUT DC Input Voltage, Output Voltage (Referenced to
GND)
VCC
V
TJ
TA
IOH
IOL
tr, tf
Junction Temperature (PDIP)
Operating Temperature, All Package Types
Output Current - High
140
+85
°C
°C
mA
mA
ns/V
-40
-24
24
Output Current - Low
*
Input Rise and Fall Time
(except Schmitt Inputs)
VCC =4.5 V
CC =5.5 V
0
0
10
V
8.0
* VIN from 0.8 V to 2.0 V
This device contains protection circuitry to guard against damage due to high static
voltages or electric fields. However, precautions must be taken to avoid applications of any voltage
higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and
V
OUT should be constrained to the range GND≤(VIN or VOUT)≤VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or
VCC). Unused outputs must be left open.
2
IN74ACT245
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
VCC
Guaranteed
Limits
25 °C -40°C to
85°C
Symbol Parameter
Test Conditions
V
Unit
V
VIH
VIL
Minimum High-
V
OUT=0.1 V or VCC-0.1 V 4.5
5.5
2.0
2.0
2.0
2.0
Level Input
Voltage
Maximum Low -
Level Input
Voltage
Minimum High-
Level Output
Voltage
V
OUT=0.1 V or VCC-0.1 V 4.5
5.5
0.8
0.8
0.8
0.8
V
V
VOH
4.5
5.5
4.4
5.4
4.4
5.4
I
OUT ≤ -50 µA
*VIN=VIH or VIL
IOH=-24 mA
IOH=-24 mA
4.5
5.5
4.5
5.5
3.86
4.86
0.1
3.76
4.76
0.1
VOL
Maximum Low-
Level Output
Voltage
V
I
OUT ≤ 50 µA
0.1
0.1
*VIN=VIH or VIL
IOL=24 mA
4.5
5.5
5.5
0.36
0.36
±0.1
0.44
0.44
±1.0
IOL=24 mA
IIN
Maximum Input
Leakage Current
Additional Max.
ICC/Input
VIN=VCC or GND
µA
VIN=VCC - 2.1 V
5.5
5.5
1.5
mA
∆ICCT
IOZ
Maximum Three- VIN (OE)= VIH or VIL
±0.6
±6.0
µA
mA
mA
State Leakage
Current
VIN =VCC or GND
V
OUT =VCC or GND
OLD=1.65 V Max
IOLD
IOHD
ICC
+Minimum
V
5.5
5.5
5.5
75
Dynamic Output
Current
+Minimum
VOHD=3.85 V Min
-75
80
Dynamic Output
Current
Maximum
VIN=VCC or GND
8.0
µA
Quiescent Supply
Current
(per Package)
* All outputs loaded; thresholds on input associated with output under test.
+Maximum test duration 2.0 ms, one output loaded at a time.
3
IN74ACT245
AC ELECTRICAL CHARACTERISTICS(VCC=5.0 V ± 10%, CL=50pF, Input tr=tf=3.0 ns)
Guaranteed Limits
Symbol
Parameter
Unit
25 °C
-40°C to
85°C
Min Max Min Max
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay, A to B, B to A (Figure 1.5
7.5
1.5
8.0
ns
ns
ns
ns
ns
ns
1)
Propagation Delay, A to B, B to A (Figure 1.5
1)
8.0
1.0
9.0
Propagation Delay, Direction or Output 1.5 10.0 1.5
Enable to A or B (Figure 2)
11.0
12.0
11.0
11.0
Propagation Delay, Direction or Output 1.5 10.0 1.5
Enable to A or B (Figure 2)
Propagation Delay, Direction or Output 1.5 10.0 1.0
Enable to A or B (Figure 2)
Propagation Delay, Direction or Output 2.0 10.0 1.5
Enable to A or B (Figure 2)
CIN
COUT
Maximum Input Capacitance
Maximum Three-State I/O Capacitance
(I/O in High-Impedance State)
4.5
15
4.5
15
pF
pF
Typical @25°C,VCC=5.0
V
45
CPD
Power Dissipation Capacitance
pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
4
IN74ACT245
EXPANDED LOGIC DIAGRAM
5
IN74ACT245DW 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| IN74ACT245N | INTEGRAL | OCTAL 3-STATE NONINVERTING BUFFER/LINE DRIVER/LINE RECEIVER | 获取价格 |
|
| IN74ACT245N | IKSEMICON | Octal 3-State Noninverting Bus Transceiver High-Speed Silicon-Gate CMOS | 获取价格 |
|
| IN74ACT251 | INTEGRAL | 8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS | 获取价格 |
|
| IN74ACT251 | IKSEMICON | 8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS | 获取价格 |
|
| IN74ACT251D | INTEGRAL | 8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS | 获取价格 |
|
| IN74ACT251D | IKSEMICON | 8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS | 获取价格 |
|
| IN74ACT251N | INTEGRAL | 8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS | 获取价格 |
|
| IN74ACT251N | IKSEMICON | 8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS | 获取价格 |
|
| IN74ACT253 | INTEGRAL | DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS | 获取价格 |
|
| IN74ACT253 | IKSEMICON | Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS | 获取价格 |
|
IN74ACT245DW 相关文章
Bourns 密封通孔金属陶瓷微调电位计产品选型手册(英文版)
- 2024-09-20
- 6
Bourns 精密环境传感器产品选型手册(英文版)
- 2024-09-20
- 9
Bourns POWrTher 负温度系数(NTC)热敏电阻手册 (英文版)
- 2024-09-20
- 8
Bourns GMOV 混合过压保护组件产品选型手册(英文版)
- 2024-09-20
- 6
