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SN74LS642N ACTIVE

Octal bus transceivers with open collector outputs

Inventory: 4,065  
 

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow N/A for Pkg Type
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
PDIP (N) | 20 20 | TUBE
0 to 70
Package | Pins PDIP (N) | 20
Package qty | Carrier: 20 | TUBE
Operating temperature range (℃) 0 to 70
View TI packaging information

Features for the SN74LS642

  • SN74LS64X-1 Versions Rated at IOL of 48 mA
  • Bi-directional Bus Transceivers in High-Density 20-Pin Packages
  • Hysteresis at Bus Inputs Improves Noise Margins
  • Choice of True or Inverting Logic
  • Choice of 3-State or Open-collector Outputs

Description for the SN74LS642

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 IOL is 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.

Pricing


Qty Price (USD)
1-99 6.182
100-249 5.04
250-999 3.961
1,000+ 3.36