The PIC16F1765 doubles the 1764’s program flash to 14 KB while keeping the same 14-pin package, 1024 bytes of SRAM and the power-supply peripheral set: one op amp, two comparators, an eight-channel 10-bit ADC, a 5-bit and a 10-bit DAC, the programmable ramp generator and the complementary output generator. Fourteen kilobytes is where lighting and charger products start carrying a real protocol on top of the control loop, so this part’s protection is often provisioned deliberately. When it is engaged, our unlock encrypted PIC16F1765 code service recovers the image from hardware you own.

Recovering a provisioned part cleanly

Provisioned means the configuration words close some regions while others stay answerable – typically program flash protected, but the high-endurance 128-byte block left writable for counters. The first bench step is reading that policy, because it decides what a legitimate recovery can lift and what must be documented as sealed. Every unlock encrypted PIC16F1765 code job follows that order: map the configuration words, read every region that answers in its protected state, checksum per sector, and keep the bulk erase – the only path that clears protection, at the cost of the whole array – permanently out of the plan. The three configurable logic cells add a subtlety: their gate configurations are reprogrammed at runtime by constants in flash, and a clone verified only by checksum can boot fine while its CLC wiring – and therefore its control-loop gating – differs from the original. Our fixture compares the clone’s logic-cell outputs and analogue chain against the donor under representative load before anything ships. General bench discipline is in the how the MCU memory works guide, and remanence background for older storage technologies in the clone microcontroller memory content remanence reference.

The EUSART on this die usually carries a protocol – UART, LIN-framed messaging or a proprietary command set – and protocol state is the layer most often missed by casual copies. Framing constants, timeout windows and auto-baud expectations all live in flash, and a clone that answers a handshake with subtly wrong timing can sit invisible on a bench and fail on the customer’s line. Our fixture replays recorded sessions from the donor board against the clone, byte for byte, before delivery; the transcript travels with the image so your team can rerun it on their own bench.

Fleet strategy is the other recurring conversation around this part. Because the 7 KB and 14 KB members share a pinout, maintenance teams can standardise on the larger die and one image set, retiring the smaller part gradually. Customers planning that consolidation receive both recovered images side by side with a constants comparison, which converts an intimidating migration into a scheduled change with a known diff.

Duplication and delivery

Verified images go into matching 14-pin blanks with configuration words restored, through the MCU flash EEPROM data cloning pipeline with read-back comparison on every unit, and bounded-scope work is described on the partial microcontroller chip cloning page.

Reset behaviour is the last layer our verification examines on this part. Brown-out thresholds, the low-power BOR option and power-up timer settings are configuration-word fields that decide how the product survives a sagging rail, and a clone programmed with default configuration instead of the recovered words will pass every functional test on a healthy bench supply and fail the first time a customer’s mains dips. We therefore replay a brown-out profile – a controlled rail sag and recovery – against both the clone and the donor, and the comparison note records the trip points observed.

Family links

The 7 KB sibling is on the PIC16F1764 program page, the 20-pin 14 KB member on the PIC16F1769 software recovery, and the older mid-range generation on the PIC16F1454 flash code page.

Surface-mount donors arrive in SOIC and TSSOP bodies as well as PDIP, and the fine-pitch packages need different fixture handling than the through-hole parts most benches were designed around. Our sockets cover all three, and lead inspection under magnification precedes every fine-pitch capture – a bent lead on a TSSOP reads as an intermittent open that wastes more time than the inspection would have.

Scope

We accept only units you own or are authorised to service, with the entitlement recorded per job. Send the locked PIC16F1765 and we will confirm the package, quote a fixed fee, and return verified code with its protection map and CLC notes.