ISPLSI1048E-50LQ

Product Overview

ISPLSI1048E-50LQ is a Lattice ispLSI CPLD device from Lattice Semiconductor, providing 48 macrocells for nonvolatile control, decode, sequencing and interface integration. Its instant-on or in-system-programmable architecture makes it suitable for deterministic board management and legacy logic replacement. The complete code fixes the density, voltage option, speed, package and temperature/qualification grade and must be matched during sourcing.

This ordering variant belongs to the ispLSI generation-specific supply family. The -50 speed token identifies its timing grade. Package and pin count must be confirmed from the exact ordering table. These suffix details affect PCB footprint, I/O availability, timing closure and environmental qualification; they are not cosmetic ordering differences.

Architecture and Technical Characteristics

The ispLSI architecture combines generic logic blocks, product-term logic and a global routing pool to implement wide combinational equations and registered state machines. E2CMOS nonvolatile cells retain configuration, while IEEE 1149.1 JTAG supports in-system programming and boundary scan on supported members. Global clock, reset and output-enable resources, I/O voltage and programming voltage vary among 1000, 2000, VE/VL and 5000 derivatives, so the exact base number must be targeted in the Lattice design software.

Key Features

• Manufacturer: Lattice Semiconductor
• Full part number: ISPLSI1048E-50LQ
• Device family: Lattice ispLSI CPLD
• Logic capacity: 48 macrocells
• Architecture: family-specific logic blocks and programmable interconnect
• Configuration technology: E2CMOS in-system-programmable nonvolatile CPLD
• Voltage class: ispLSI generation-specific supply family
• Speed-grade designator: -50; guaranteed timing must be taken from the exact device speed table
• Programming and design file: verify the exact Lattice tool, JEDEC/bitstream format, JTAG chain and programmer support
• User I/O: package- and family-dependent; confirm with the exact pin-out table

Applications

• Address decoding and chip-select generation
• Reset, power sequencing and supervisory control
• Bus bridging, protocol glue and interface qualification
• Deterministic finite-state machines
• Industrial, communications and legacy platform maintenance

Design and Replacement Considerations

Before replacing this device, compare macrocell capacity, usable I/O for the selected package, core and I/O rails, input tolerance, global clock and reset resources, power-up behavior, JTAG pinout and guaranteed propagation/setup/clock-to-output timing. Preserve the original project and programming file. A blank CPLD does not contain the customer function, and a JEDEC or SVF file compiled for a related density or package must not be assumed compatible. When migrating to another family, recompile, rerun fitter constraints and perform timing and board-level voltage validation.

Quality & Sourcing

For ISPLSI1048E-50LQ, Antrex Electronics can support stock and lead-time checks, full-suffix confirmation, package and date-code review, product photographs, label inspection and shipment planning. Buyers should state whether blank or pre-programmed parts are required and provide the target quantity, acceptable date code, packaging form and inspection requirements. For discontinued or long-stored CPLDs, recommended controls include traceability review, marking comparison, lead and ball-condition inspection, solderability evaluation and third-party electrical or X-ray testing when risk warrants it. OEMs, EMS providers, repair centers and component buyers may submit BOM lists and hard-to-find programmable-logic requirements for sourcing support.