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参数资料
| 型号： | MC74ACT245MR1 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 总线收发器 |
| 英文描述： | ACT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封装： | EIAJ, SO-20 |
| 文件页数： | 1/10页 |
| 文件大小： | 112K |
| 代理商： | MC74ACT245MR1 |
Semiconductor Components Industries, LLC, 2006
November, 2006 Rev. 7
1
Publication Order Number:
MC74AC245/D
MC74AC245, MC74ACT245
Octal Bidirectional
Transceiver with 3State
Inputs/Outputs
The MC74AC245/74ACT245 contains eight noninverting
bidirectional buffers with 3state outputs and is intended for
busoriented applications. Current sinking capability is 24 mA at both
the A and B ports. The Transmit/Receive (T/R) input determines the
direction of data flow through the bidirectional transceiver. Transmit
(activeHIGH) enables data from A ports to B ports; Receive
(activeLOW) enables data from B ports to A ports. The Output
Enable input, when HIGH, disables both A and B ports by placing
them in a High Z condition.
Features
Noninverting Buffers
Bidirectional Data Path
A and B Outputs Source/Sink 24 mA
′ACT245 has TTL Compatible Inputs
PbFree Packages are Available
PIN ASSIGNMENT
PIN
FUNCTION
OE
Output Enable Input
T/R
Transmit/Receive Input
A0A7
Side A 3State Inputs or 3State Outputs
B0B7
Side B 3State Inputs or 3State Outputs
TRUTH TABLES
Inputs
Outputs
OE
T/R
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
High Z State
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Figure 1.
19
20
18
17
16
15
14
2
1
34567
VCC
13
8
12
9
11
10
OE
B0
B1
B2
B3
B4
B5
B6
B7
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
http://onsemi.com
SOIC20W
DW SUFFIX
CASE 751D
TSSOP20
DT SUFFIX
CASE 948E
SOEIAJ20
M SUFFIX
CASE 967
1
PDIP20
N SUFFIX
CASE 738
1
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
DEVICE MARKING INFORMATION
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC74ACT245N | 功能描述:总线收发器 Octal Bidirectional 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 |
| MC74ACT245NG | 功能描述:总线收发器 Octal Bidirectional 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 |
| MC74ACT245NG | 制造商:ON Semiconductor 功能描述:Logic - Transceiver IC |
| MC74ACT245SD | 制造商:Motorola 功能描述:MOTOROLA NXF8B |
| MC74ACT251D | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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