These quadruple bus transceivers are designed for asynchronous
two-way communication 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 
)
inputs. The output-enable inputs can be used to disable the device so
that the buses are effectively isolated.
The dual-enable configuration gives the quadruple bus transceivers
the capability to store data by simultaneously enabling OEBA and . Each output reinforces its input
in this transceiver configuration. 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) retain their
states. The 4-bit codes appearing on the two sets of buses are
identical.
The SN54ALS243A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS243A is characterized for operation from 0°C to 70°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Quadruple Bus Transceivers With 3-State Outputs datasheet (Rev. B) | 01 Dec 1994 | |
| * | SMD | SN54ALS243A SMD 84013022A | 21 Jun 2016 | |
| Selection guide | Logic Guide (Rev. AB) | 12 Jun 2017 | ||
| Application note | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 02 Dec 2015 | ||
| User guide | LOGIC Pocket Data Book (Rev. B) | 16 Jan 2007 | ||
| Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 08 Jul 2004 | ||
| Application note | TI IBIS File Creation, Validation, and Distribution Processes | 29 Aug 2002 | ||
| Application note | Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) | 01 Aug 1997 | ||
| Application note | Designing With Logic (Rev. C) | 01 Jun 1997 | ||
| Application note | Input and Output Characteristics of Digital Integrated Circuits | 01 Oct 1996 | ||
| Application note | Live Insertion | 01 Oct 1996 | ||
| Application note | Advanced Schottky (ALS and AS) Logic Families | 01 Aug 1995 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| LCCC (FK) | 20 | View options |
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