SN74AHC245 Transceivers Datasheet

SN74AHC245 Datasheet, PDF, Equivalent


Part Number

SN74AHC245

Description

Octal Bus Transceivers

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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SN74AHC245
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SN54AHC245, SN74AHC245
SCLS230J – OCTOBER 1995 – REVISED JULY 2014
SNx4AHC245 Octal Bus Transceivers With 3-State Outputs
1 Features
1 Operating Range 2-V to 5.5-V VCC
• Latch-Up Performance Exceeds 250 mA
Per JESD 17
• On Products Compliant to MIL-PRF-38535,
All Parameters Are Tested Unless Otherwise
Noted. On All Other Products, Production
Processing Does Not Necessarily Include Testing
of All Parameters.
2 Applications
• Servers
• PCs and Notebooks
• Network Switches
• Wearable Health and Fitness Devices
• Telecom Infrastructures
• Electronic Points of Sale
3 Description
The SNx4AHC245 octal bus transceivers are
designed for asynchronous two-way communication
between data buses. This part operates from 4.5 V to
5.5 V.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PDIP (20)
25.40 mm x 6.35 mm
SSOP (20)
7.50 mm x 5.30 mm
SNx4AHC245
TSSOP (20)
6.50 mm x 4.40 mm
TVSOP (20)
5.00 mm x 4.40 mm
SOIC (20)
12.80 mm x 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified Schematic
1
DIR
19
OE
2
A1
18
B1
To Seven Other Channels
1
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.

SN74AHC245
SN54AHC245, SN74AHC245
SCLS230J – OCTOBER 1995 – REVISED JULY 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Simplified Schematic............................................. 1
5 Revision History..................................................... 2
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 Handling Ratings....................................................... 4
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Switching Characteristics, VCC = 3.3 V ± 0.3 V ....... 6
7.7 Switching Characteristics, VCC = 5 V ± 0.5 V ........... 7
7.8 Noise Characteristics ................................................ 7
7.9 Operating Characteristics.......................................... 7
7.10 Typical Characteristics ............................................ 8
8 Parameter Measurement Information .................. 9
9 Detailed Description ............................................ 10
9.1 Overview ................................................................. 10
9.2 Functional Block Diagram ....................................... 10
9.3 Feature Description................................................. 10
9.4 Device Functional Modes........................................ 10
10 Application and Implementation........................ 11
10.1 Application Information.......................................... 11
10.2 Typical Application ............................................... 11
11 Power Supply Recommendations ..................... 12
12 Layout................................................................... 12
12.1 Layout Guidelines ................................................. 12
12.2 Layout Example .................................................... 12
13 Device and Documentation Support ................. 13
13.1 Related Links ........................................................ 13
13.2 Trademarks ........................................................... 13
13.3 Electrostatic Discharge Caution ............................ 13
13.4 Glossary ................................................................ 13
14 Mechanical, Packaging, and Orderable
Information ........................................................... 13
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision I (July 2003) to Revision J
Page
• Updated document to new TI data sheet format. ................................................................................................................... 1
• Removed Ordering Information table. .................................................................................................................................... 1
• Added Military Disclaimer to Features list. ............................................................................................................................. 1
• Added Applications. ............................................................................................................................................................... 1
• Added Device Information table. ............................................................................................................................................ 1
• Added Handling Ratings table. .............................................................................................................................................. 4
• Changed MAX ambient temperature to 125°C in Recommended Operating Conditions....................................................... 5
• Added Typical Characteristics. ............................................................................................................................................... 8
• Added Detailed Description section...................................................................................................................................... 10
• Added Application and Implementation section.................................................................................................................... 11
• Added Power Supply Recommendations and Layout sections............................................................................................ 12
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Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN54AHC245, SN74AHC245 SCLS2 30J – OCTOBER 1995 – REVISED JULY 2 014 SNx4AHC245 Octal Bus Transceivers W ith 3-State Outputs 1 Features •1 Op erating Range 2-V to 5.5-V VCC • Latc h-Up Performance Exceeds 250 mA Per JES D 17 • On Products Compliant to MIL-P RF-38535, All Parameters Are Tested Unl ess Otherwise Noted. On All Other Produ cts, Production Processing Does Not Nec essarily Include Testing of All Paramet ers. 2 Applications • Servers • PCs and Notebooks • Network Switches • Wearable Health and Fitness Devices Telecom Infrastructures • Electroni c Points of Sale 3 Description The SNx 4AHC245 octal bus transceivers are desi gned for asynchronous two-way communica tion between data buses. This part oper ates from 4.5 V to 5.5 V. Device Infor mation(1) PART NUMBER PACKAGE BODY S IZE (NOM) PDIP (20) 25.40 mm x 6.35 m m SSOP (20) 7.50 mm x 5.30 mm SNx4AHC245 TSSOP (20) 6.50 mm x 4.40 mm TVSOP (20.
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