Product details

IOL (Max) (mA) 6 IOH (Max) (mA) -6 Technology Family HCT Rating Catalog Operating temperature range (C) -40 to 125, -40 to 85
IOL (Max) (mA) 6 IOH (Max) (mA) -6 Technology Family HCT Rating Catalog Operating temperature range (C) -40 to 125, -40 to 85
PDIP (N) 20 229 mm² 24.33 x 9.4 SOIC (DW) 20 132 mm² 12.8 x 10.3 SOP (NS) 20 98 mm² 12.6 x 7.8 SSOP (DB) 20 38 mm² 5.3 x 7.2 TSSOP (PW) 20 29 mm² 4.4 x 6.5 TSSOP (PW) 20 29 mm² 6.5 x 4.4 VSSOP (DGS) 20 15 mm² 5.1 x 3
  • Operating voltage range of 4.5 V to 5.5 V
  • High-Current 3-state outputs drive bus lines directly or up to 15-LSTTL loads
  • Low power consumption, 80-µA maximum ICC
  • Typical tpd = 14 ns
  • ±6-mA output drive at 5 V
  • Low input current of 1 µA maximum
  • Inputs are TTL-voltage compatible
  • Operating voltage range of 4.5 V to 5.5 V
  • High-Current 3-state outputs drive bus lines directly or up to 15-LSTTL loads
  • Low power consumption, 80-µA maximum ICC
  • Typical tpd = 14 ns
  • ±6-mA output drive at 5 V
  • Low input current of 1 µA maximum
  • Inputs are TTL-voltage compatible

The SNx4HCT245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SNx4HCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the device so that the buses are effectively isolated.

The SNx4HCT245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SNx4HCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the device so that the buses are effectively isolated.

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Technical documentation

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Type Title Date
* Data sheet SNx4HCT245 Octal Bus Transceivers With 3-State Outputs datasheet (Rev. H) PDF | HTML 01 Sep 2022
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note SN54/74HCT CMOS Logic Family Applications and Restrictions 01 May 1996
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 01 Apr 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

14-24-LOGIC-EVM — Generic Logic EVM Supporting 14 through 24 Pin PW, DB, D, DW, NS, DYY, and DGV Packages

This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, DYY or DGV package in a 14 to 24 pin count.

User guide: PDF | HTML
Not available on TI.com
Evaluation board

14-24-NL-LOGIC-EVM — Generic 14 through 24 pin non-leaded package evaluation module

Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
User guide: PDF | HTML
Not available on TI.com
Simulation model

SN74HCT245 IBIS Model (Rev. A)

SCLM097A.ZIP (10 KB) - IBIS Model
Package Pins Download
PDIP (N) 20 View options
SO (NS) 20 View options
SOIC (DW) 20 View options
SSOP (DB) 20 View options
TSSOP (PW) 20 View options
VSSOP (DGS) 20 View options

Ordering & quality

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  • Ongoing reliability monitoring

Support & training

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