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The 55500EFD/BZA is an AC plasma display driver manufactured by Rochester Electronics. It features a BICMOS technology design housed in a CDIP-40 ceramic package. The device supports 32-segment operation with serial data input and dot matrix display modes. It operates within a supply voltage range of 10.8 V to 13.2 V, with a nominal voltage of 12 V. The component is characterized for military temperature ranges from -55°C to 125°C.
Verify the specific suffix BZA against official manufacturer documentation to confirm exact testing or screening requirements. Ensure compatibility with existing CDIP-40 footprints and verify that the serial input logic levels match the system design specifications before integration.
Select this component when a ruggedized AC plasma driver is required for harsh environments. The BICMOS process offers robust performance. Confirm that the 32-segment capacity aligns with the display resolution needs and that the serial interface protocol is supported by the host controller.
Rochester Electronics specializes in sustaining legacy semiconductor products. This part belongs to their portfolio of licensed manufacturing services, ensuring availability of components that are otherwise obsolete. The company maintains quality standards including AS9120 certification for such critical parts.
Direct substitutes include other SN55500 variants from original manufacturers if pin-compatible. Verify electrical parameters and package dimensions carefully. Cross-referencing with SN54H55 series documents may provide context on related logic families but does not indicate functional interchangeability.