SN54HC244 Drivers Datasheet

SN54HC244 Datasheet, PDF, Equivalent


Part Number

SN54HC244

Description

Octal Buffers and Line Drivers

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download SN54HC244 Datasheet


SN54HC244
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SN54HC244, SN74HC244
SCLS130E – DECEMBER 1982 – REVISED MAY 2016
SNx4HC244 Octal Buffers and Line Drivers With 3-State Outputs
1 Features
1 Wide Operating Voltage Range of 2 V to 6 V
• High-Current Outputs Drive Up to 15 LSTTL
Loads
• 3-State Outputs Drive Bus Lines or Buffer Memory
Address Registers
• Low Power Consumption: ICC, 80-µA (Maximum)
• Typical tpd = 11 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA (Maximum)
• 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
• LED Displays
• Network Switches
• Telecom Infrastructure
• Motor Drivers
• I/O Expanders
3 Description
The SNx4HC244 octal buffers and line drivers are
designed specifically to improve both the
performance and density of 3-state memory address
drivers, clock drivers, and bus-oriented receivers and
transmitters. The SNx4HC244 devices are organized
as two 4-bit buffers and drivers with separate output-
enable (OE) inputs. When OE is low, the device
passes noninverted data from the A inputs to the Y
outputs. When OE is high, the outputs are in the
high-impedance state.
Device Information(1)
PART NUMBER PACKAGE (PINS) BODY SIZE (NOM)
CDIP (20)
6.92 mm × 24.38 mm
SN54HC244
CFP (20)
6.92 mm × 13.72 mm
LCCC (20)
8.89 mm × 8.89 mm
SN74HC244DB
SSOP (20)
5.30 mm × 7.25 mm
SN74HC244DW SOIC (20)
7.50 mm × 12.80 mm
SN74HC244N
PDIP (20)
6.30 mm × 25.40 mm
SN74HC244NS
SOP (20)
5.30 mm × 12.60 mm
SN74HC244PW TSSOP (20)
4.40 mm × 6.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Logic Diagram (Positive Logic)
1OE 1
2OE 19
2
1A1
18 1Y1
11
2A1
9 1Y1
4
1A2
16 1Y1
13
2A2
7 1Y1
6
1A3
14 1Y1
15
2A3
5 1Y1
8
1A4
12 1Y4
17
2A4
3 1Y4
Copyright © 2016, Texas Instruments Incorporated
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. PRODUCTION DATA.

SN54HC244
SN54HC244, SN74HC244
SCLS130E – DECEMBER 1982 – REVISED MAY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Electrical Characteristics – SN54HC244 .................. 5
6.7 Electrical Characteristics – SN74HC244 .................. 6
6.8 Switching Characteristics .......................................... 6
6.9 Switching Characteristics – CL = 50 pF .................... 7
6.10 Switching Characteristics – CL = 150 pF ................ 7
6.11 Typical Characteristic.............................................. 8
7 Parameter Measurement Information .................. 9
8 Detailed Description ............................................ 11
8.1 Overview ................................................................ 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 11
8.4 Device Functional Modes ....................................... 11
9 Application and Implementation ........................ 12
9.1 Application Information............................................ 12
9.2 Typical Application .................................................. 12
10 Power Supply Recommendations ..................... 13
11 Layout................................................................... 13
11.1 Layout Guidelines ................................................. 13
11.2 Layout Example .................................................... 13
12 Device and Documentation Support ................. 14
12.1 Related Links ........................................................ 14
12.2 Community Resources.......................................... 14
12.3 Trademarks ........................................................... 14
12.4 Electrostatic Discharge Caution ............................ 14
12.5 Glossary ................................................................ 14
13 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (August 2003) to Revision E
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section .................................................................................................. 1
• Added Military Disclaimer to Features section ....................................................................................................................... 1
• Added Applications section .................................................................................................................................................... 1
• Removed Ordering Information table ..................................................................................................................................... 1
• Added Device Information table ............................................................................................................................................. 1
2 Submit Documentation Feedback
Copyright © 1982–2016, Texas Instruments Incorporated
Product Folder Links: SN54HC244 SN74HC244


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN54HC244, SN74HC244 SCLS130 E – DECEMBER 1982 – REVISED MAY 201 6 SNx4HC244 Octal Buffers and Line Driv ers With 3-State Outputs 1 Features 1 Wide Operating Voltage Range of 2 V to 6 V • High-Current Outputs Drive U p to 15 LSTTL Loads • 3-State Outputs Drive Bus Lines or Buffer Memory Addre ss Registers • Low Power Consumption: ICC, 80-µA (Maximum) • Typical tpd = 11 ns • ±6-mA Output Drive at 5 V • Low Input Current of 1 µA (Maximum ) • On Products Compliant to MIL-PRF- 38535, All Parameters Are Tested Unless Otherwise Noted. On All Other Products , Production Processing Does Not Necess arily Include Testing of All Parameters . 2 Applications • Servers • LED Di splays • Network Switches • Telecom Infrastructure • Motor Drivers • I /O Expanders 3 Description The SNx4HC2 44 octal buffers and line drivers are d esigned specifically to improve both the performance and density of 3-state memory address drivers.
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