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SN74F243

Features: • Asynchronous Communication Between Data Buses• Local Bus-Latch Capability• True Logic• Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPsPinoutSpecificationsSupply voltage range, VCC . . ....

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SeekIC No. : 004498818 Detail

SN74F243: Features: • Asynchronous Communication Between Data Buses• Local Bus-Latch Capability• True Logic• Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carrie...

SN74F243 Data Sheet

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Part Number:
SN74F243
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/24

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Product Details

Description



Features:

• Asynchronous Communication Between
  Data Buses
• Local Bus-Latch Capability
• True Logic
• Package Options Include Plastic
  Small-Outline Packages, Ceramic Chip
  Carriers, and Standard Plastic and Ceramic
  300-mil DIPs


Pinout

Connection Diagram


Specifications

Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 mA to 5 mA
Voltage range applied to any output in the disabled or power-off state . . . . . . . . . . . . . . . . . . 0.5 V to 5.5 V
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to VCC
Current into any output in the low state: SN54F243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74F243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128 mA
Operating free-air temperature range: SN54F243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C
SN74F243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.


Description

These SN74F243 quadruple bus transceivers are designe for asynchronous communications between data buses. The control function implementation allows for maximum flexibility in timing. These 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 levels at the output-enable (OEBA and OEAB) inputs. The output-enable inputs can be used to disable the device so that the buses are effectively isolated.

The SN74F243 dual-enable configuration gives the quadruple bus transceivers the capability to store data by simultaneous enabling of OEBA and OEAB. Each output reinforces its input in this transceiver configuration. Thus, when both control inputs are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of bus lines (eight in all) remain at their states. The 4-bit codes appearing on the two sets of buses will be identical for the 4F243.

The SN54F243 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74F243 is characterized for operation from 0°C to 70°C.




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