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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Index Product Product &
Eco Status
Unit Price/
1K Order
Packing Method Convention Package Marking
Convention*
Qualification
Support
Compliance
Certificates
0 MM74HCT245MTCX Full Production
Green as of Aug 2011
$0.165

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: May 2014
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2HCT245

FIT 0.9 @55°C
change temp

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
0 MM74HCT245WM Full Production
ROHS Compliant as of 27-Feb-2006
$0.239

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

Line 2MM74HCT

Line 3245WM

FIT 0.9 @55°C
change temp

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
0 MM74HCT245SJ Full Production
ROHS Compliant as of 27-Feb-2006
$0.268

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

PDF SOP 20L  Drawing
Last Update: Jan 2015 PDF M20D SOP EIAJ 20L, Packing Drawing
Last Update: May 2014
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2HCT245SJ

FIT 0.9 @55°C
change temp

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
0 MM74HCT245MTC Full Production
Green as of Aug 2011
$0.163

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: May 2014
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2HCT245

FIT 0.9 @55°C
change temp

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
0 MM74HCT245SJX Full Production
ROHS Compliant as of 27-Feb-2006
$0.249

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

PDF SOP 20L  Drawing
Last Update: Jan 2015 PDF M20D SOP EIAJ 20L, Packing Drawing
Last Update: May 2014
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)
&K

Line 2HCT245SJ

FIT 0.9 @55°C
change temp

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
0 MM74HCT245WMX Full Production
ROHS Compliant as of 27-Feb-2006
$0.211

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

Line 2MM74HCT

Line 3245WM

FIT 0.9 @55°C
change temp

Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260

PDF RoHS IPC1752
XML RoHS IPC1752
PDF RoHS/REACH/JIG
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This product is general usage and suitable for many different applications.
Application Note Description
AN-313 PDFDC Electrical Characteristics of MM74HC High Speed CMOS Logic
Last Update : 05-Mar-2011
AN-310 PDFHigh Speed CMOS (MM74HC) Processing
Last Update : 05-Mar-2011
AN-368 PDFAn Introduction to and Comparison of 74HCT TTL Compatible CMOS Logic
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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