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CUI Wei, WU Si-liang. Small Area ROM Design for Embedded Applications[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2007, 16(4): 460-464.
Citation: CUI Wei, WU Si-liang. Small Area ROM Design for Embedded Applications[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2007, 16(4): 460-464.

Small Area ROM Design for Embedded Applications

Funds:the National“863”Program Project (2006AA801302)
  • Received Date:2007-01-26
  • The compact full custom layout design of a 16 kbit mask-programmable complementary metal oxide semiconductor (CMOS) read only memory (ROM) with low power dissipation is introduced. By optimizing storage cell size and peripheral circuit structure, the ROM has a small area of 0.050 mm2 with a power-delay product of 0.011 pJ/bit at +1.8 V. The high packing density and the excellent power-delay product have been achieved by using SMIC 0.18 μm 1P6M CMOS technology. A novel and simple sense amplifier/driver structure is presented which restores the signal full swing efficiently and reduces the signal rising time by 2.4 ns, as well as the memory access time. The ROM has a fast access time of 8.6 ns. As a consequence, the layout design not only can be embedded into microprocessor system as its program memory, but also can be fabricated individually as ROM ASIC.
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