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General-purpose transceivers

SN74LS245

ACTIVE

Octal bus transceivers

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Data sheet

SN74LS245

ACTIVE
Data sheet Order now

Product details

Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Input type TTL Output type TTL Features High speed (tpd 10-50ns) Technology family LS Rating Catalog Operating temperature range (°C) 0 to 70
Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Input type TTL Output type TTL Features High speed (tpd 10-50ns) Technology family LS Rating Catalog Operating temperature range (°C) 0 to 70
SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm) SSOP (DB) 20 56.16 mm² (7.2 mm × 7.8 mm) PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm)
  • 3-State Outputs Drive Bus Lines Directly
  • PNP Inputs Reduce DC Loading on Bus Lines
  • Hysteresis at Bus Inputs Improves Noise Margins
  • Typical Propagation Delay Times Port to Port, 8 ns
  • 3-State Outputs Drive Bus Lines Directly
  • PNP Inputs Reduce DC Loading on Bus Lines
  • Hysteresis at Bus Inputs Improves Noise Margins
  • Typical Propagation Delay Times Port to Port, 8 ns

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

The SNx4LS245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the device so that the buses are effectively isolated.

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

The SNx4LS245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the device so that the buses are effectively isolated.
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* Data sheet SNx4LS245 Octal Bus Transceivers With 3-State Outputs datasheet (Rev. B) PDF | HTML Sep 28, 2016

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