公开(公告)号：US20020097605A1

公开(公告)日：2002-07-25

申请号：US10033718

申请日：2001-12-28

Applicant: STMicroelectronics S.r.I.

Inventor： Roberto Ravazzini

IPC: G11C011/34

CPC classification number: G11C16/12 ,  G11C16/08

Abstract: Presented is an EEPROM circuit comprising: a program array of a matrix of EEPROM cells arranged in columns and rows, a data array of a matrix of EEPROM cells arranged in columns and rows, the cells of the program and data array capable of being written, read, and erased; a reference voltage circuit coupled to the program array capable of producing voltages used to write to and erase data from the program array; a current generation circuit coupled to the program array for supplying current to the program array in operation. Advantageously according to the invention, the reference voltage circuit and the current generation circuit are additionally coupled to the data array. Moreover, the EEPROM circuit further comprises means for selectively connecting at least one of the rows of the program array to one of the rows of the data array, and for selectively connecting at least one of the columns of the program array to one of the columns of the data array.

Abstract translation: 提出了一种EEPROM电路，包括：排列成列和行的EEPROM单元的矩阵的程序阵列，排列成列和行的EEPROM单元的矩阵的数据阵列，能够被写入的程序和数据阵列的单元， 阅读和删除; 耦合到所述程序阵列的参考电压电路，其能够产生用于写入和擦除来自所述程序阵列的数据的电压; 耦合到程序阵列的电流产生电路，用于在操作中向程序阵列提供电流。 有利的是，根据本发明，参考电压电路和电流产生电路另外耦合到数据阵列。 此外，EEPROM电路还包括用于选择性地将程序阵列的行中的至少一个连接到数据阵列的行之一的装置，并且用于选择性地将程序阵列的列中的至少一个连接到列之一 的数据数组。