Non-volatile semiconductor storage device performing ROM read operation upon power-on
4 Assignments
0 Petitions
Accused Products
Abstract
A power-on reset circuit has a power-on level detecting circuit which detects a power voltage to output a power-on reset signal and a delay circuit which delays the power-on reset signal output by the power-on level detecting circuit. Two chip address specifying pads are connected to the delay circuit. Delay time in the delay time is controlled according to a chip address supplied to these two pads.
105 Citations
30 Claims
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1-21. -21. (canceled)
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22. A data read method for a semiconductor device having a plurality of independently-controllable ROM regions;
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inputting a read command and a read address after a power supply voltage is applied, the read command and read address including information that corresponds to one of the ROM regions; and
reading data out of the ROM region specified by the information included in the read command and read address, after the read command and read address are input. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification