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器件3D模型￥ 0.741
SN74HCT245 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
封装:
TSSOP-20
描述:
具有三态输出的八路总线收发器
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P1P9P10P11
原理图在P9
封装尺寸在P14P15P18P19P21
焊盘布局在P22
标记信息在P14P15P16
封装信息在P13P14P15P16P17P18P19
技术参数、封装参数在P4
应用领域在P1P17P31
电气规格在P5
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SN74HCT245数据手册
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DIR
OE
A1
B1
1
2
18
19
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Copyright © 2016, Texas Instruments Incorporated
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
SN54HCT245
,
SN74HCT245
SCLS020F –MARCH 1984–REVISED AUGUST 2016
SNx4HCT245 Octal Bus Transceivers With 3-State Outputs
1
1 Features
1
• Operating Voltage Range of 4.5 V to 5.5 V
• High-Current 3-State Outputs Drive Bus Lines
Directly or up To 15-LSTTL Loads
• Low Power Consumption, 80-µA Maximum I
CC
• Typical t
pd
= 14 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Maximum
• Inputs Are TTL-Voltage Compatible
2 Applications
• Factory Automation and Control
• Grid Infrastructure
• Electronic Point of Sale
• Multi-Function Printers
• Motor Drives
• Storage
• Telecom Infrastructure
3 Description
The SNx4HCT245 octal bus transceivers are
designed for asynchronous two-way communication
between data buses. The control-function
implementation minimizes external timing
requirements.
The SNx4HCT245 devices allow data transmission
from the A bus to the B bus or from the B bus to the
A bus, depending upon the logic level at the direction-
control (DIR) input. The output-enable (OE) input can
be used to disable the device so that the buses are
effectively isolated.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
SN54HCT245J CDIP (20) 24.20 mm × 6.92 mm
SN54HCT245FK LCCC (20) 8.89 mm × 8.89 mm
SN54HCT245W CFP (20) 13.09 mm × 6.92 mm
SN74HCT245DW SOIC (20) 12.80 mm × 7.50 mm
SN74HCT245N PDIP (20) 24.33 mm × 6.35 mm
SN74HCT245NS SOP (20) 12.60 mm × 5.30 mm
SN74HCT245PW TSSOP (20) 6.50 mm × 4.40 mm
SN74HCT245DB SSOP (20) 7.80 mm × 7.20 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Logic Diagram (Positive Logic)
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