MM74HC245A − Octal 3-STATE Transceiver

The MM74HC245A 3-STATE bidirectional 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 and high noise immunity usually associated with CMOS circuitry, yet has speeds comparable to low power Schottky TTL circuits.     This device has an active LOW enable input G# and a direction control input, DIR. When DIR is HIGH, data flows from the A inputs to the B outputs. When DIR is LOW, data flows from the B inputs to the A outputs. The MM74HC245A transfers true data from one bus to the other.     This device can drive up to 15 LS-TTL Loads, and does not have Schmitt trigger inputs. All inputs are protected from damage due to static discharge by diodes to VCC and ground.

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Product Status/Pricing/Packaging

Product Product & Eco Status *Pricing Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
0 MM74HC245AMTCX Full Production
Green as of Aug 2011
$0.1798 TSSOP 20L Details TAPE REEL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC245A
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC245ASJX Full Production
ROHS Compliant
$0.2682 SOP 20L Details TAPE REEL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC245ASJ
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC245AWMX Full Production
ROHS Compliant
$0.2654 SO 20L WB Details TAPE REEL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:MM74HC
Line 3:245AWM
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC245ASJ Full Production
ROHS Compliant
$0.2682 SOP 20L Details RAIL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC245ASJ
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC245AWM Full Production
ROHS Compliant
$0.2654 SO 20L WB Details RAIL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:MM74HC
Line 3:245AWM
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC245AMTC Full Production
Green as of Aug 2011
$0.1798 TSSOP 20L Details RAIL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC245A
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
Show discontinued variants ...

Features

  • Typical propagation delay: 13 ns
  • Wide power supply range: 2-6V
  • Low quiescent current: 80 µA maximum (74 HC)
  • 3-STATE outputs for connection to bus oriented systems
  • High output drive: 6 mA (minimum)
  • Same as the 645

Applications

  • Server & Mainframe
  • Workstation
  • Desktop PC
  • Notebook PC
  • PC Server
  • Media Tablets
  • Storage & Peripherals
  • Printer
  • Graphic Card
  • LCD Monitor
  • CRT/RPTV
  • Other Data Processing
  • Routers & LAN Switches
  • SAN
  • Long-haul & Metro
  • Broadband Access
  • Broadband Modem
  • Enterprise Voice Network
  • Central Office
  • Broadcast & Studio
  • Other Wired Communications
  • Mobile Handsets
  • Wireless LAN Card & Broadband Access
  • Wireless LAN Access Point/Router
  • Mobile Comm Infrastructure
  • Other Wireless Communications
  • PMP/MP3 Players
  • Home Audio System Components
  • CRT/RPTV
  • LCD TV
  • PDP TV
  • Camcorder
  • DVD
  • Set Top Boxes
  • DSC
  • Video Game Console
  • E-book Reader
  • Consumer Appliances
  • Other Audio & Video
  • Other Consumer Electronics
  • Medical Electronics/Devices
  • Automation
  • Test and Measurement
  • Building & Home Control
  • Other Industrial

Application Notes

Models

For additional information please visit the Models page.

Package Condition Temperature Range Vcc Range Software Version Revision Date
IBIS
TSSOP 20L Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 4.5V to 5.5V 2.1 Feb 28, 2012
SO 20L WB Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 4.5V to 5.5V 2.1 Feb 28, 2012


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