Electronic circuit device

Details Electronic circuit device Electronic circuit device

2008-01-29

2008-01-29

Everhart, Caridad (Department: 2891)

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

With contact or lead

C257SE23010, C257SE23016, C257SE23020, C257S723000

Reexamination Certificate

active

07323771

ABSTRACT:
An electronic circuit device has a high-density mount board (2), on which are disposed a microcomputer (3) and random access memory (7) which are connected to each other through an exclusive memory bus (12) for high-speed data transfer, a programmable device (8) which is a variable logic circuit represented by FPGA, and an electrically-rewritable nonvolatile memory (16) which can store the operation program of the microcomputer. The high-density mount board has external mounting pins on the bottom surface so that it can be mounted on a mother board in the same manner as a system on-chip multi-chip module. With an intended logic function being set on the programmable device, a hardware-based function to be realized by the electronic circuit device can be simulated. With an operation program being written to the nonvolatile memory, a software-based function to be realized can be simulated. Consequently, the device facilitates the debugging at early stages of system development, configures a prototype system, and contributes to the time reduction throughout the system development, prototype fabrication and large-scale production.

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