The PIC16F15225 is the largest member of the 14-pin 152xx tier: 14 KB of flash, 1024 bytes of SRAM and the family’s memory access partition, all on the same pinout as its 3.5 KB and 7 KB siblings. Applications that outgrow the smaller parts land here without a board respin, which also means fleet-wide firmware in this package is often the most valuable single file a service shop holds. When protection is engaged, our readout protected PIC16F15225 binary service recovers it from hardware you own.

Mapping a three-block array

The partition divides program flash into an application block, a boot block and a storage area flash block, each with its own code-protection and write-protection settings, while the device information area holds factory reference measurements and a unique identifier. Reading the part starts with those configuration words: they say which blocks are closed and which still answer. A careful readout protected PIC16F15225 binary job captures every recoverable region in its locked state and never issues the bulk erase that clearing protection would demand.

Fleet standardisation makes this file count

Because the package is pin-compatible down the tier, many manufacturers standardise on one board and fit the 14 KB part everywhere, tuning behaviour in software. The recovered binary then encodes product variants that were never separate products at all, and losing it means losing the whole range at once. We treat that case explicitly: the report records which regions differ between multiple donors when customers send more than one unit, which quickly reveals whether variants live in the application block or in storage-area parameter tables. That step has settled more than one internal debate about which unit represented the current release. The internal-layout reasoning behind this is in the microcontroller internal storage structure analysis reference, and the commercial boundary of the work is set out in the reverse engineering integrated circuit legitimate foundation article.

Multi-donor comparison as standard practice

When customers can send more than one locked unit, we read all of them and diff the results before delivering anything. The practice costs little and answers questions a single donor cannot: which regions are variant data, which are per-unit serialisation, and which represent the current release versus an older one. Divergent storage-area tables, for example, usually mark parameters someone tuned on the bench – exactly the bytes a service organisation wants in its master image, and exactly the bytes a single-donor job would freeze at whatever state that one unit happened to hold. The comparison table ships with the delivery, and where donors disagree we recommend which unit’s values to keep and why.

Why the 14 KB tier anchors product ranges

Fourteen kilobytes on a 14-pin package is where manufacturers consolidate: one board, one programming fixture, several product grades distinguished by parameters rather than by schematic revisions. The consequence for recovery work is that a single image can represent an entire range, and its loss is a range-level event rather than a product-level one. We treat these jobs with the corresponding care – capture, annotation, and a layout report that records how grades are encoded – because the file’s value justifies the extra documentation. Customers have used those annotations to rebuild grade tables for new production, which is the strongest version of a recovery: not just the old range restored, but the range’s logic made explicit.

From annotations to grade tables

The layout report’s annotations do more than document – they reconstruct how the manufacturer encoded product grades. Where grades differ by storage-area tables, the report lists each grade’s values side by side, effectively handing back the factory’s option matrix. Service teams use it to configure spares for the correct grade without owning a donor of each kind, and production teams have used it to reinstate discontinued mid-range variants that the standard image had quietly absorbed. The reconstruction takes hours, not weeks, because the partition layout constrains where grade data can live to a handful of plausible regions.

Duplication

Verified images are written into blank 14-pin parts with configuration words restored and read-back comparison on every unit, through the MCU flash EEPROM data cloning pipeline.

Family links

The 7 KB sibling is on the PIC16F15224 code page, and the 28-pin flagship of the family on the PIC16F15255 firmware recovery.

Scope and contact

We accept only units you own or are authorised to service. Send the locked PIC16F15225 and we will confirm the package, quote a fixed fee, and return a verified binary with its protection map and region notes.