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Digital Interconnect Devices from Lattice

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Digital Interconnect Devices from Lattice Semiconductor Generic Digital Crosspoint (GDX) devices represent a class of high-density programmable component, distinct from complex programmable logic devices (CPLDs) and field programmable gate arrays (FPGAs). The diagram below shows the evolution of these devices. Each successive family built on the previous concepts: starting from initial GDX family to latest high speed Switching and interfacing ispGDX2 family. Digital Crosspoint devices are available to support 5.0V, 3.3V, 2.5V and 1.8V designs and have been optimized for fast, cost-effective integration of complex interface logic and signal routing applications.

The ispGDX2 family consists of devices with up to 16 high speed (800 MHz) SERDES, up to four 360MHz sysCLOCK PLLs, sysIO interface capability and is available in 64, 128 and 256 I/Os. With blazing fast 3.0ns input-to-output speeds and versatile sysIO buffers, the ispGDX2 family supports the most demanding interfacing and interconnect needs of next-generation system designs.

The ispGDXV (3.3V) family consists of devices with 80, 160 and 240 I/Os. The original 5V ispGDX Family is available in 80, 120 and 160 I/O versions.

ispGDX product evolution

Digital Interconnect Product Family Selector Guide

1.8 volt Device Families

Family Registers Fastest Speed sysCLOCK PLL sysIO Interfaces sysHSI Block I/Os
tPD (ns) Fmax (MHz)
ispGDX2C 64-256 3.0 360 Yes Yes Yes 64-256

2.5 volt Device Families

Family Registers Fastest Speed sysCLOCK PLL sysIO Interfaces sysHSI Block I/Os
tPD (ns) Fmax (MHz)
ispGDX2B 64-256 3.0 360 Yes Yes Yes 64-256

3.3 volt Device Families

Family Registers Fastest Speed sysCLOCK PLL sysIO Interfaces sysHSI Block I/Os
tPD (ns) Fmax (MHz)
ispGDX2V 64-256 3.0 360 Yes Yes Yes 64-256
ispGDXV 80-240 3 250 No No No 80-240

5.0 volt Device Families

Family Registers Fastest Speed sysCLOCK PLL sysIO Interfaces sysHSI Block I/Os
tPD (ns) Fmax (MHz)
ispGDX 80-160 5 143 No No No 80-160

 

Mature Devices Click here for information on related older device families