CY7C341B-25JC

Product Overview

The CY7C341B-25JC is a Cypress high-density legacy programmable logic ordering code. It belongs to an erasable PLD generation used to consolidate board-level decoding, sequencing and interface logic; density, pinout and timing must be taken from the exact CY7C3xx ordering table rather than inferred from a nearby member.

Architecture and Logic Role

This Cypress PLD generation uses nonvolatile programmable logic resources and macrocell/interconnect structures sized for more integration than a simple fixed-output PAL. Exact macrocell count, usable I/O, clock resources and programming algorithm vary by base device and revision, so those values are not generalized across CY7C330, CY7C332 and related codes.

Device-Specific Identification

• Ordering-code propagation-delay grade: 25 ns; validate in the exact speed table
• J/LJ suffix: J-leaded chip-carrier package family; verify terminal count and body outline

Design and Replacement Considerations

Compare the complete suffix, pinout, supply range, input thresholds, output drive, propagation delay, clock behavior, power-up state and programming algorithm before substitution. A blank device with the same base number will not reproduce a programmed part without the correct JEDEC data. Even architecturally compatible replacements may require recompilation and timing review.

Typical Applications

• Board-level state and sequence control
• Address decoding and chip-select generation
• Interface and glue-logic consolidation
• Legacy equipment repair

Quality and Sourcing

For CY7C341B-25JC, request photographs of the full top and underside markings, manufacturer traceability, date code, package condition and programming status. Confirm whether the requirement is blank or preprogrammed. For obsolete stock, evaluate lead condition, storage history and solderability; for military-numbered material, require the applicable compliance and traceability documents rather than relying on a shortened marking.