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参数资料
| 型号： | SN74LS245DW |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封装： | PLASTIC, SOIC-20 |
| 文件页数： | 1/4页 |
| 文件大小： | 154K |
| 代理商： | SN74LS245DW |
5-398
FAST AND LS TTL DATA
OCTAL BUS TRANSCEIVER
The SN54 / 74LS245 is an Octal Bus Transmitter/Receiver designed for
8-line asynchronous 2-way data communication between data buses.
Direction Input (DR) controls transmission of Data from bus A to bus B or bus
B to bus A depending upon its logic level. The Enable input (E) can be used
to isolate the buses.
Hysteresis Inputs to Improve Noise Immunity
2-Way Asynchronous Data Bus Communication
Input Diodes Limit High-Speed Termination Effects
ESD > 3500 Volts
LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW)
18
17
16
15
14
13
1
2
3
4
5
6
7
20
19
8
VCC
DIR
E
B1
B2
B3
B5
B4
B6
A1
A2
A3
A4
A5
A6
A7
9
10
A8 GND
12
11
B7
B8
TRUTH TABLE
INPUTS
OUTPUT
E
DIR
OUTPUT
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
Isolation
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
– 55
0
25
125
70
°C
IOH
Output Current — High
54, 74
– 3.0
mA
OH
54
74
– 12
– 15
mA
IOL
Output Current — Low
54
74
12
24
mA
SN54/74LS245
OCTAL BUS TRANSCEIVER
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN
Plastic
SN74LSXXXDW SOIC
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LS245N | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20 |
| SN74LS245FN | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PQCC20 |
| SN74LS245NS | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20 |
| SN74LS247D | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| SN74LS247JDS | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, CDIP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS245DW | 制造商:Texas Instruments 功能描述:ICS UNIVERSAL BUS FUNCTIONS LOGIC ROHS |
| SN74LS245DWG4 | 功能描述:总线收发器 Octal bus Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN74LS245DWR | 功能描述:总线收发器 Octal Bus RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN74LS245DWR2 | 制造商:ON Semiconductor 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin SOIC W T/R |
| SN74LS245DWRG4 | 功能描述:总线收发器 Octal bus Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
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