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Product Detailed Parameters
- Description：OT PLD, 9NS, PAL-TYPE
- Mfr：Texas Instruments
- Package：Bulk
- Series：*
- Programmable Type：-
- Number of Macrocells：-
- Voltage - Input：-
- Speed：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
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Overview
The TIBPAL20R4-7CNT is a simple programmable logic device (PLD) of the PAL type manufactured by Texas Instruments. It features an architecture with 16 inputs and 8 registered outputs, providing 64 product terms for logic implementation. The device operates on a single 5 V supply and utilizes a 24-pin plastic DIP package. Key electrical parameters include a maximum propagation delay of 7 ns and a maximum clock frequency of 143 MHz. It supports TTL input levels and is designed for industrial temperature ranges.
Feature Summary
- PAL-type architecture with 16 inputs and 8 registered outputs
- High-speed performance with 7 ns propagation delay
- Single 5 V power supply operation
- 24-pin Plastic DIP (PDIP) package
Applications
- Register file implementations
- State machine decoding
- Bus interface logic
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as older PAL devices may not meet current environmental standards. Ensure the specific suffix 'CNT' corresponds to the required package and temperature grade before ordering.
Selection Notes
Select this component when registered output storage is required within a simple PLD structure. The 7 ns speed grade suits high-frequency applications up to 143 MHz. Compare against other PAL variants if unregistered outputs or different I/O counts are sufficient for the design.
Part Context
This part belongs to the TI PAL20R4 family of complex programmable logic devices. These components were widely used in digital systems for implementing combinatorial and sequential logic functions before the prevalence of FPGAs. The registered variant specifically includes flip-flops at the output stage.
Replacement Considerations
Direct pin-to-pin replacements from other manufacturers should be verified for electrical compatibility. Check for equivalent speed grades and registered output configurations. Legacy support availability may vary for discontinued PAL technologies.
