Document
Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
SN54AHC244, SN74AHC244
SCLS226K – OCTOBER 1995 – REVISED JULY 2014
SNx4AHC244 Octal Buffers/Drivers 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
• Network Switches • Power Infrastructures • PCs and Notebooks • Wearable Health and Fitness Devices • Tests and Measurements
3 Description
These octal buffers and drivers are designed specifically to improve the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SSOP (20)
7.20 mm × 5.30 mm
SOIC (20)
12.80 mm × 7.50 mm
SNx4AHC244 PDIP (20)
24.33 mm × 6.35 mm
TSSOP (20)
12.60 mm × 5.30 mm
VQFN (20)
4.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
4 Simplified Schematic
1 1OE
19 2OE
2 1A1
18 1Y1
11 2A1
9 2Y1
4 1A2
16 1Y2
13 2A2
7 2Y2
6 1A3
14 1Y3
15 2A3
5 2Y3
8 1A4
12 1Y4
17 2A4
3 2Y4
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.
SN54AHC244, SN74AHC244
SCLS226K – 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....................... 4 7.4 Thermal Information .................................................. 5 7.5 Electrical Characteristics........................................... 5 7.6 Switching Characteristics .......................................... 6 7.7 Switching Characteristics .......................................... 6 7.8 Noise Characteristics ................................................ 7 7.9 Operating Characteristics.......................................... 7 7.10 Typical Characteristics ............................................ 7 8 Parameter Measurement Information .................. 8
9 Detailed Description ........................