On-system programmable and off-system programmable chip

Details On-system programmable and off-system programmable chip On-system programmable and off-system programmable chip

2005-04-19

2005-04-19

Phung, Anh (Department: 2824)

Static information storage and retrieval

Read/write circuit

C365S185010

Reexamination Certificate

active

06882577

ABSTRACT:
An on-system programmable and off-system programmable chip comprises a control circuit connected to an on-system programmable nonvolatile memory and an off-system programmable nonvolatile memory, and a pumping circuit connected to the on-system programmable nonvolatile memory. In a programming mode of the chip, external programming voltages are provided for programming the off-system programmable nonvolatile memory, and in an operation mode of the chip, the pumping circuit produces internal programming voltages for the on-system programmable nonvolatile memory for programming the on-system programmable nonvolatile memory.

REFERENCES:
patent: 5412260 (1995-05-01), Tsui et al.
patent: 5825199 (1998-10-01), Shelton et al.
patent: 20040109354 (2004-06-01), Wang et al.

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