ISPLSI 2128VE-135LTN176

Complex Programmable Logic Devices Overview

The ispLSI 2128VE-135LTN176 is a high-density, in-system programmable logic device from Lattice Semiconductor. It features 6000 PLD gates, 128 macrocells, and 28 I/O pins housed in a 176-pin TQFP package. Operating at 3.3V with a maximum frequency of 135 MHz and propagation delay of 4.0 ns, it utilizes E2CMOS technology for non-volatile reprogrammability. The architecture includes 32 Generic Logic Blocks (GLBs), three dedicated clock inputs, and eight dedicated input pins.

Complex Programmable Logic Devices Feature Summary

• SuperFAST High Density Architecture: 6000 PLD gates, 128 registers, and wide input gating for fast counters and state machines.
• In-System Programmability: Supports 3.3V ISP via IEEE 1149.1 Boundary Scan Test Access Port (TAP).
• High Performance: Achieves 135 MHz operating frequency with 4.0 ns propagation delay using E2CMOS technology.
• Flexible I/O Configuration: Features individually programmable open-drain or totem-pole outputs and 5V tolerant I/Os.

Complex Programmable Logic Devices Applications

• Complex address decoding and bus arbitration logic
• State machine implementation and counter circuits
• Mixed-voltage system interface bridging between 3.3V and 5V TTL devices

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific -135 speed grade and LTN176 package suffix match design requirements. Check for end-of-life status or obsolescence notices prior to procurement planning.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring high-speed logic density with non-volatile reconfigurability. Ensure the 176-pin TQFP footprint fits the PCB layout constraints. Verify that the 3.3V supply voltage aligns with the system power architecture and that 28 I/Os meet the pin count requirements.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 2128VE family, which offers JEDEC and pinout compatibility with the older ispLSI 2128V series. It serves as a drop-in replacement for legacy designs while providing enhanced performance and lower voltage operation capabilities within the same logical framework.

Complex Programmable Logic Devices Replacement Considerations

The ispLSI 2128VE-135LTN176 is functionally compatible with the ispLSI 2128V-135LTN176. Designers migrating from the V series can utilize this VE version without schematic changes, benefiting from improved speed and power characteristics.

Complex Programmable Logic Devices FAQ

What is the maximum operating frequency for the -135 speed grade?

The maximum operating frequency for the ispLSI 2128VE-135 variant is 135 MHz.

How many Generic Logic Blocks (GLBs) are contained in this device?

The ispLSI 2128VE contains a total of 32 Generic Logic Blocks (GLBs).

Is the device compatible with 5V signals on its I/O pins?

Yes, the device features 5V tolerant I/Os, allowing safe interfacing with standard 5V TTL devices despite operating at 3.3V.