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莱迪思半导体公司2001年12月3日 宣布其ispMACH4000超快（SuperFAST）系列的首批器件-256个 宏单元的ispMACH4256器件和512个宏 单元的ispMACH4512器件面市。这两种 器件均有支持2.5V和1.8V伏电压的版 本,分别属于isoMACH4000B和ispMACH4000C系列。 ispMACH4000C是业界第一个1.8V 的在系统可编程（ISP）复杂可编程逻辑器 件系列,它延续了莱迪思的传统,第一个 向市场推出新的低电压标准的器件。 ispMACH4000器件以最低的动态 功耗实现了在工业界领先的速度性能, 同时支持界于3.3V与1.8V之间的I/O
Lattice Semiconductor announced the first of its ispMACH4000 superfast (SuperFAST) family of devices on December 3, 2001, the 256 ispMACH4256 devices with 256 macrocells and the ispMACH4512 device with 512 macrocells. Both devices have versions that support 2.5V and 1.8V volts, belonging to the isoMACH4000B and ispMACH4000C families respectively. The ispMACH4000C is the industry’s first family of 1.8V in-system programmable (ISP) programmable logic devices that continues Lattice’s tradition of being the first to introduce new low-voltage devices to the market. The ispMACH4000 devices deliver industry-leading speed performance with the lowest dynamic power while supporting I / O between 3.3V and 1.8V