OPERATION

1 ) STRUCTURE OF MOS NOR ROM ?2 ) HOW Precharged MOS NOR ROM WORKS ?

MOS NOR ROM

WL[0]

WL[1]

WL[2]

WL[3]

BL[0] BL[1] BL[2] BL[3]

GND

GND

VDD

Pull-up devices

Precharged MOS NOR ROMVDD

precharge

WL(0)

WL(1)

WL(2)

WL(3)

GND

GND

BL(0) BL(1) BL(2) BL(3)

Row

D

eco

der

A1

A2

enable

0 1

0

0

0

0

1on on

1 1 1 10 1 1

0

1

0