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SN74HCT245

ACTIVE

Octal bus transceivers with tri-state outputs

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Data sheet

SN74HCT245

ACTIVE
Data sheet Order now

Product details

Number of channels 8 IOL (max) (mA) 6 IOH (max) (mA) -6 Input type TTL Output type CMOS Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Technology family HCT Rating Catalog Operating temperature range (°C) -40 to 125
Number of channels 8 IOL (max) (mA) 6 IOH (max) (mA) -6 Input type TTL Output type CMOS Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Technology family HCT Rating Catalog Operating temperature range (°C) -40 to 125
TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm) SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) SSOP (DB) 20 56.16 mm² (7.2 mm × 7.8 mm) VSSOP (DGS) 20 24.99 mm² (5.1 mm × 4.9 mm) SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm) PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm)
  • 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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SN74ACT245 ACTIVE Octal bus transceivers with TTL-compatible CMOS inputs and 3-state outputs Voltage range 4.5V to 5.5V, average propagation delay 8ns, average drive strength 24mA
SN74AHCT245 ACTIVE Octal bus transceivers with tri-state outputs Voltage range 4.5V to 5.5V, average propagation delay 9ns, average drive strength 8mA

Technical documentation

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* Data sheet SNx4HCT245 Octal Bus Transceivers With 3-State Outputs datasheet (Rev. H) PDF | HTML Sep 1, 2022

Design & development

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Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
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Evaluation board

14-24-NL-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin non-leaded packages

14-24-NL-LOGIC-EVM is a flexible evaluation module (EVM) designed to support any logic or translation device that has a 14-pin to 24-pin BQA, BQB, RGY, RSV, RJW or RHL package.

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Simulation model

SN74HCT245 IBIS Model (Rev. A)

SCLM097 (82 KB) - IBIS model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 20 Ultra Librarian
SOIC (DW) 20 Ultra Librarian
SSOP (DB) 20 Ultra Librarian
VSSOP (DGS) 20 Ultra Librarian
SOP (NS) 20 Ultra Librarian
PDIP (N) 20 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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