SN54LS640 Series
Octal Bus Transceivers
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Octal Bus Transceivers
| Part | Voltage - Supply [Max] | Voltage - Supply [Min] | Number of Bits per Element | Number of Elements [custom] | Logic Type | Current - Output High, Low [custom] | Current - Output High, Low [custom] | Supplier Device Package | Package / Case | Package / Case | Package / Case | Mounting Type | Operating Temperature [Min] | Operating Temperature [Max] | Output Type | Supplier Device Package [y] | Supplier Device Package [x] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments SN54LS640J | 5.5 V | 4.5 V | 8 | 1 | Inverting, Transceiver | 12 mA | 12 mA | 20-CDIP | 7.62 mm | 0.3 in | 20-CDIP | Through Hole | -55 C | 125 °C | 3-State | ||
Texas Instruments 84161012A | 5.5 V | 4.5 V | 8 | 1 | Inverting, Transceiver | 12 mA | 12 mA | 20-LCCC | 20-CLCC | Surface Mount | -55 C | 125 °C | 3-State | 8.89 | 8.89 | ||
Texas Instruments 8416101RA |
Key Features
• SN74LS64X-1 Versions Rated at IOLof 48 mABi-directional Bus Transceivers in High-Density 20-Pin PackagesHysteresis at Bus Inputs Improves Noise MarginsChoice of True or Inverting LogicChoice of 3-State or Open-collector OutputsSN74LS64X-1 Versions Rated at IOLof 48 mABi-directional Bus Transceivers in High-Density 20-Pin PackagesHysteresis at Bus Inputs Improves Noise MarginsChoice of True or Inverting LogicChoice of 3-State or Open-collector Outputs
Description
AI
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so the buses are effectively isolated.
The -1 versions of the SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are identical to the standard versions except that the recommended maximum IOLis increased to 48 milliamperes. There are no -1 versions of the SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645.
The SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645 are characterized for operation over the full military tempearture range of –55°C to 125°C. The SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are characterized for operation from 0°C to 70°C.
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so the buses are effectively isolated.
The -1 versions of the SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are identical to the standard versions except that the recommended maximum IOLis increased to 48 milliamperes. There are no -1 versions of the SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645.
The SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645 are characterized for operation over the full military tempearture range of –55°C to 125°C. The SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are characterized for operation from 0°C to 70°C.