ispMACH4000 器件包括3.3V、2.5V和1.8V三个系列。4000C是世界上第一款1.8V 在系统可编程 CPLD 系列。ispMACH 4000 系列器件集业界领先的速度性能和最低动态功耗于一身，其支持的 I/O电压标准为：3.3V、2.5V、1.8V。-ispMACH4000 devices include 3.3V, 2.5V and 1.8V three series. 4000C is the world' s first 1.8V in-system programmable CPLD family. ispMACH 4000 family of devices set the speed of industry-leading performance and the lowest dynamic power consumption in one of its support of the I/O voltage standard: 3.3V, 2.5V, 1.8V.