MM74HCT245

Octal 3-STATE Transceiver

The MM74HCT245 3-STATE bi-directional buffer utilizes advanced silicon-gate CMOS technology and is intended for two-way asynchronous communication between data buses. It has high drive current outputs which enable high speed operation even when driving large bus capacitances. This circuit possesses the low power consumption of CMOS circuitry, yet has speeds comparable to low power Schottky TTL circuits.     This device is TTL input compatible and can drive up to 15 LS-TTL loads, and all inputs are protected from damage due to static discharge by diodes to VCC and ground.     The MM74HCT245 has one active low enable input (G#), and a direction control (DIR). When the DIR input is HIGH, data flows from the A inputs to the B outputs. When DIR is LOW, data flows from B to A.     MM74HCT devices are intended to interface between TTL and NMOS components and standard CMOS devices. These parts are also plug-in replacements for LS-TTL devices and can be used to reduce power consumption in existing designs.

Features

  • TTL input compatible
  • 3-STATE outputs for connection to system busses
  • High output drive current: 6 mA (min)
  • High speed: 16 ns typical propagation delay
  • Low power: 80 µA (74HCT Series)
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Product Product &
Eco Status
Unit Price/
1K Order
Packing Method Convention Package Marking
Convention*
Qualification
Support
Compliance
Certificates
MM74HCT245MTCX Full Production
Green as of Aug 2011
 China RoHS
$0.2217

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 2HCT245

FIT [Calculate] 0.92 @55°C
MTBF 1.09E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
MM74HCT245WM Full Production
Green as of Dec 2015
 China RoHS
$0.3

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 2MM74HCT

Line 3245WM

FIT [Calculate] 0.92 @55°C
MTBF 1.09E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
MM74HCT245SJ Full Production
ROHS Compliant as of 27-Feb-2006
 China RoHS
$0.4938

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: Sep 2015
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2HCT245SJ

FIT [Calculate] 0.92 @55°C
MTBF 1.09E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
MM74HCT245MTC Full Production
Green as of Aug 2011
 China RoHS
$0.199

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 2HCT245

FIT [Calculate] 0.92 @55°C
MTBF 1.09E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
MM74HCT245SJX Full Production
ROHS Compliant as of 27-Feb-2006
 China RoHS
$0.4938

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: Sep 2015
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2HCT245SJ

FIT [Calculate] 0.92 @55°C
MTBF 1.09E9

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
PDF China RoHS
MM74HCT245WMX Full Production
Green as of Dec 2015
 China RoHS
$0.2325

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 2MM74HCT

Line 3245WM

FIT [Calculate] 0.92 @55°C
MTBF 1.09E9

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 MM74HCT245

This product is general usage and suitable for many different applications.
Application Note Description
AN-313 PDF
Last Update : 05-Mar-2011
AN-310 PDF
Last Update : 05-Mar-2011
AN-368 PDF
Last Update : 05-Mar-2011
Package Condition Temperature Range Vcc Range Software Version Revision Date
IBIS
SO 20L WB 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 85°C 4.5V to 5.5V 2.1 28-Feb-2012

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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)
MM74HCT245MTCX 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9
MM74HCT245WM 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9
MM74HCT245SJ 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9
MM74HCT245MTC 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9
MM74HCT245N 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9
MM74HCT245SJX 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9
MM74HCT245WMX 0.7 0.6 55 150 8.62E-05 3850000 0 1.83 259.24 0.92
Run new FIT calculation
1.09E9