74AC244

Octal Buffer/Line Driver with 3-STATE Outputs

The AC/ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus-oriented transmitter/receiver which provides improved PC board density.

Features

  • ICC and IOZ reduced by 50%
  • 3-STATE outputs drive bus lines or buffer memory address registers
  • Outputs source/sink 24 mA
  • ACT244 has TTL-compatible inputs
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Product Product &
Eco Status
Unit Price/
1K Order
Packing Method Convention Package Marking
Convention*
Qualification
Support
Compliance
Certificates
74AC244SC Full Production
Green as of Dec 2015
 China RoHS
$0.38

SO 20L WB  -  Details
2.337 x 7.468 x 15.342mm,  RAIL

PDF SO 20L WB  Drawing
Last Update: Feb 2013 PDF M20B SOW20, Packing Drawing
Last Update: Jan 2016 PDF SOIC Tape And Reel Packing Drawing
Last Update: Jun 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 274AC244

FIT [Calculate] 0.61 @55°C
MTBF 1.64E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
74AC244SCX Full Production
Green as of Dec 2015
 China RoHS
$0.3616

SO 20L WB  -  Details
2.337 x 7.468 x 15.342mm,  TAPE REEL

PDF SO 20L WB  Drawing
Last Update: Feb 2013 PDF M20B SOW20, Packing Drawing
Last Update: Jan 2016 PDF SOIC Tape And Reel Packing Drawing
Last Update: Jun 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 274AC244

FIT [Calculate] 0.61 @55°C
MTBF 1.64E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
74AC244SJ Full Production
ROHS Compliant as of 27-Feb-2006
 China RoHS
$0.5569

SOP 20L  -  Details
1.8 x 5.3 x 12.6mm,  RAIL

PDF SOP 20L  Drawing
Last Update: Nov 2015 PDF M20D SOP EIAJ 20L, Packing Drawing
Last Update: Jan 2016 PDF SOIC TUBE Packing Drawing
Last Update: Dec 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 274AC244

FIT [Calculate] 0.61 @55°C
MTBF 1.64E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
74AC244MTC Full Production
Green as of Aug 2011
 China RoHS
$0.2439

TSSOP 20L  -  Details
1.2 x 4.4 x 6.5mm,  RAIL

PDF TSSOP 20L  Drawing
Last Update: Jan 2015 PDF MTC20 TSSOP20 Leads, Packing Drawing
Last Update: Jan 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2AC244

FIT [Calculate] 0.61 @55°C
MTBF 1.64E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
74AC244SJX Full Production
ROHS Compliant as of 27-Feb-2006
 China RoHS
$0.5655

SOP 20L  -  Details
1.8 x 5.3 x 12.6mm,  TAPE REEL

PDF SOP 20L  Drawing
Last Update: Nov 2015 PDF M20D SOP EIAJ 20L, Packing Drawing
Last Update: Jan 2016 PDF SOIC TUBE Packing Drawing
Last Update: Dec 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 274AC244

FIT [Calculate] 0.61 @55°C
MTBF 1.64E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
74AC244MTCX Full Production
Green as of Aug 2011
 China RoHS
$0.2754

TSSOP 20L  -  Details
1.2 x 4.4 x 6.5mm,  TAPE REEL

PDF TSSOP 20L  Drawing
Last Update: Jan 2015 PDF MTC20 TSSOP20 Leads, Packing Drawing
Last Update: Jan 2016
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2AC244

FIT [Calculate] 0.61 @55°C
MTBF 1.64E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
Show discontinued variants ...

If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
* Click here for further top mark packaging information for 74AC244

This product is general usage and suitable for many different applications.
Package Condition Temperature Range Vcc Range Software Version Revision Date
HSPICE
SO 20L WB Slow -55°C to 125°C 4.5V to 5.5V 97.1 28-Feb-2012
Typical -55°C to 125°C 4.5V to 5.5V 97.1 28-Feb-2012
Fast -55°C to 125°C 4.5V to 5.5V 97.1 28-Feb-2012
IBIS
SO 20L WB Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 3V to 3.6V 2.1 28-Feb-2012
Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 4.5V to 5.5V 2.1 28-Feb-2012
TSSOP 20L Electrical;Fast;Slow;Thermal;Typical -40°C to 80°C 3V to 3.6V 2.1 28-Feb-2012
Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 4.5V to 5.5V 2.1 28-Feb-2012

For additional information please visit the Models page.

Distributor Inventory

Product Distributor Quantity Cart RFQ Inventory Date

Fairchild Product Availability (Projected Cumulative Factory Inventory)

Product Product Availability Date Total Projected Inventory
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Product
Ea
(0.3 - 1.4)
Confidence
(0.6-0.9)
T use (°C)
T Stress (°C)
Kt (eV/K)
Device Hours
@ T Stress
(devices*hours)
Rejects
(devices)
Chi
Square
Acceleration
Factor
FIT @ T use
MTBF @ T
use (hours)
74AC244SC 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244CW 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244PC 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244SCX 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244SJ 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244MTC 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244SJX 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9
74AC244MTCX 0.7 0.6 55 150 8.62E-05 5781000 0 1.83 259.24 0.61
Run new FIT calculation
1.64E9