- 您现在的位置：买卖IC网 > PDF目录8235 > MM74HC245AWMX (Fairchild Semiconductor)IC TRANSCVR TRI-ST 8BIT 20SOIC PDF资料下载
参数资料
| 型号： | MM74HC245AWMX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCVR TRI-ST 8BIT 20SOIC |
| 标准包装： | 1 |
| 系列： | 74HC |
| 逻辑类型： | 收发器，非反相 |
| 元件数： | 1 |
| 每个元件的位元数： | 8 |
| 输出电流高，低： | 7.8mA，7.8mA |
| 电源电压： | 2 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 标准包装 |
| 其它名称： | MM74HC245AWMXDKR |
2005 Fairchild Semiconductor Corporation
DS005165
www.fairchildsemi.com
September 1983
Revised May 2005
MM74HC245A
O
c
ta
l3-ST
A
T
E
T
ranscei
ver
MM74HC245A
Octal 3-STATE Transceiver
General Description
The MM74HC245A 3-STATE bidirectional buffer utilizes
advanced silicon-gate CMOS technology, and is intended
for two-way asynchronous communication between data
buses. It has high drive current outputs which enable high
speed operation even when driving large bus capaci-
tances. This circuit possesses the low power consumption
and high noise immunity usually associated with CMOS cir-
cuitry, yet has speeds comparable to low power Schottky
TTL circuits.
This device has an active LOW enable input G and a direc-
tion control input, DIR. When DIR is HIGH, data flows from
the A inputs to the B outputs. When DIR is LOW, data flows
from the B inputs to the A outputs. The MM74HC245A
transfers true data from one bus to the other.
This device can drive up to 15 LS-TTL Loads, and does not
have Schmitt trigger inputs. All inputs are protected from
damage due to static discharge by diodes to VCC and
ground.
Features
s Typical propagation delay: 13 ns
s Wide power supply range: 2–6V
s Low quiescent current: 80
PA maximum (74 HC)
s 3-STATE outputs for connection to bus oriented systems
s High output drive: 6 mA (minimum)
s Same as the 645
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Top View
Truth Table
H
HIGH Level
L
LOW Level
X
Irrelevant
Order Number
Package Number
Package Description
MM74HC245AWM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
MM74HC245ASJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC245AMTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HC245AN
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Control
Inputs
Operation
G
DIR
L
B data to A bus
L
H
A data to B bus
HX
Isolation
相关PDF资料 |
PDF描述 |
|---|---|
| OSTTJ167150 | TERM BLOCK PLUG 5MM 16POS |
| CD4075BEE4 | IC TRPL 3INPUT OR GATE 14-DIP |
| NLU1GT125MUTCG | IC BUFF TRI-ST TTL N-INV 6UDFN |
| EDSTL955/24 | TERMINAL BLOCK HDR 5MM 24POS PCB |
| EDSTL950/24 | TERMINAL BLOCK HDR 5MM 24POS PCB |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74HC245N | 制造商:National Semiconductor Corporation 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, DIP 制造商:Texas Instruments 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, DIP |
| MM74HC251 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:8-Channel 3-STATE Multiplexer |
| MM74HC251M | 功能描述:编码器、解码器、复用器和解复用器 8-Chan 3-STATE Multi RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| MM74HC251M | 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74HC CMOS SMD 74HC251 SOIC16 |
| MM74HC251M_Q | 功能描述:编码器、解码器、复用器和解复用器 8-Chan 3-STATE Multi RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。