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TMS6789-20N is listed in the Memory IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is STANDARD SRAM, 16KX4. Review the specifications below when checking this part for your BOM.
Memory IC specifications for TMS6789-20N
- Description：STANDARD SRAM, 16KX4
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Memory Type：-
- Memory Format：-
- Technology：-
- Memory Size：-
- Memory Organization：-
- Memory Interface：-
- Clock Frequency：-
- Write Cycle Time - Word, Page：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Access Time：-
Memory IC datasheet and documents for TMS6789-20N
Memory IC Overview
The TMS6789-20N is a standard Static Random Access Memory (SRAM) integrated circuit manufactured by Texas Instruments. It features a memory configuration of 16K x 4 bits, providing a total storage capacity of 64 kilobits. The device operates with a maximum access time of 20 nanoseconds. It is housed in a 24-pin Dual In-line Package (PDIP), designed for through-hole mounting on printed circuit boards. This component serves as a volatile memory solution for digital logic applications requiring fast read and write cycles.
Memory IC Feature Summary
- Standard SRAM architecture for reliable data retention during power
- Fast 20ns access time for high-speed digital processing
- 16Kx4 bit organization suitable for address/data bus interfacing
- 24-pin PDIP package for robust through-hole PCB integration
Memory IC Applications
- Digital logic systems requiring temporary data storage
- Microprocessor-based control units needing fast buffer memory
- Industrial automation equipment with legacy DIP requirements
- Test and measurement instruments utilizing static RAM
Memory IC Procurement Notes
Verify the specific suffix 'N' indicates the lead-free or commercial grade variant if required by your assembly process. Confirm the 24-pin PDIP package matches your existing footprint, as some listings may confuse it with other pin counts. Check RoHS compliance status against current environmental regulations, as older TI batches may not meet modern directives. Ensure the 20ns speed grade meets your system timing constraints before finalizing procurement.
Memory IC Selection Notes
Select this component when a non-volatile alternative is unnecessary and low cost per bit is prioritized over power efficiency. The 16Kx4 density is ideal for small-scale buffering rather than large data logging. Consider the 20ns access time against your clock cycle requirements to ensure signal integrity. The PDIP form factor is selected specifically for prototyping or repair scenarios where surface-mount technology is not feasible.
Memory IC Part Context
This part belongs to Texas Instruments' historical line of standard SRAM devices, widely used in the 1980s and 1990s. The TMS prefix denotes Texas Instruments Semiconductor products. While largely superseded by modern CMOS technologies, these parts remain relevant for maintaining legacy industrial equipment and educational hardware that relies on established DIP interfaces.
Memory IC Replacement Considerations
Direct replacements include other 16Kx4 SRAMs in 24-pin DIP packages from manufacturers like Intel or AMD. Verify pin compatibility and voltage levels carefully. Modern equivalents often come in smaller surface-mount packages, requiring adapter solutions or board redesigns for direct substitution.
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