ISPPAC20-01JI

Overview

The ISPPAC20-01JI is an analog programmable component from Lattice Semiconductor's ispPAC family, designed for general-purpose analog signal processing. It utilizes in-system programmability (ISP) technology, allowing circuit characteristics and topology to be modified directly on the printed circuit board via PAC-Designer software. Configuration data is stored in non-volatile E2CMOS memory, retaining designs when power is off while enabling dynamic changes during operation. This device serves as a flexible analog front-end solution without fixed internal digital logic structures typical of FPGAs.

Feature Summary

• In-system programmability allows real-time modification of circuit response and function on the PCB.
• Non-volatile E2CMOS memory retains circuit design configurations without external power.
• Supports dynamic access to configuration memory for changing circuit topology in milliseconds.
• Designed for use with Windows-based PAC-Designer software for simulation and download.

Applications

• Analog-to-digital converter (ADC) front-end conditioning
• General-purpose analog signal processing
• Field upgrades for installed hardware requiring analog parameter adjustment

Procurement Notes

Verify the specific suffix '01JI' against official Lattice documentation to confirm package type and temperature range. Ensure compatibility with the required PAC-Designer software version for configuration file generation. Confirm that the target application does not require high-risk safety certifications, as Lattice products are generally not qualified for such uses.

Selection Notes

Select this component when analog flexibility and field reconfigurability are prioritized over fixed-function analog ICs. The ispPAC20 series is suitable for applications requiring precise analog filtering or signal conditioning that may need post-manufacturing tuning. Compare with other ispPAC variants based on the number of required analog inputs/outputs and specific performance metrics like bandwidth or noise.

Part Context

The ISPPAC20-01JI belongs to the ispPAC family, which bridges the gap between fixed analog circuits and programmable logic by offering analog programmability. Unlike the FPGA families mentioned in general Lattice product guides (such as ICE40 or MachXO), this device focuses on analog signal paths. It shares the ISP technology foundation with other programmable devices but applies it to continuous-time analog circuits rather than digital logic.

Replacement Considerations

No direct public substitute part numbers are identified in the provided reference material. Designers should consult Lattice's official cross-reference tools or datasheets for equivalent ispPAC models with similar analog specifications if the ISPPAC20-01JI is unavailable.