The R5F524T8ADFM is a member of Renesas’ RX24T group: an RXv2 32-bit CISC core at 80 MHz on 5 V, with 256 KB of flash and 32 KB of data memory in a LQFP64. The contact desk handles decapsulation and the checked archive for the R5F524T8ADFM LQFP64.
Flash And Working Memory
Three memory types share the R5F524T8ADFM: 256 KB of flash for the program, an 8 KB data flash for EEPROM emulation, and 32 KB of data memory. The R5F524T8ADFM splits storage into 256 KB of flash, a dedicated 8 KB data flash and 32 KB of data memory for runtime state. A PIC clone example shows how timer configuration lives in a few registers a hex can rebuild.
Where The Read Protection Lives
The R5F524T8ADFM protects its code with a debug ID code in the option-setting memory, compared against a value the debugger presents. Access to the R5F524T8ADFM is gated by an ID code in the option bytes area, checked each time the background debug interface connects. The memory-type comparison explains why flash and option regions are archived separately on the LQFP64.
Reporting And Hand-Off
Delivery is one Intel HEX at the true addresses, a binary per region, and a report listing the ID state and data-flash counts. Customers get an Intel HEX merging all regions at real addresses, separate binaries, and a short report for the R5F524T8ADFM LQFP64. A related write-up on the R5F524TEADFP covers the rest of this part family.
Peripheral Set
The RX24T silicon in the R5F524T8ADFM is built for motors: MTU3 complementary PWM, a GPT unit and a 12-bit ADC near 0.5 us. What distinguishes the R5F524T8ADFM is its peripheral mix aimed at drives: MTU3 PWM, GPT timers, a fast 12-bit ADC and a 10-bit DAC. The STM32 readout case shows how a cloned board must reconstruct the clock source for the R5F524T8ADFM.
Bench Routine
We read 256 KB of flash, then the 8 KB data flash, then the option bytes memory, then a live RAM snapshot, and repeat for a checksum. The capture order on the R5F524T8ADFM is code flash, data flash, option memory, then a confirming second pass on the 5 V rail.
A R5F524T8ADFM recovered for a warranty claim ships with the evidence package the LQFP64 board provides.
The customer receives the files with a short note on reflashing the LQFP64 without tripping the debug lock again.
A LQFP64 R5F524T8ADFM that locked mid-project is common; the code array is intact, only the debug path is closed.
For a 64-pin R5F524T8ADFM the alternate-function pins are decoded from the dump, not guessed from the silk.
Our turnaround notes record the socket used, because the LQFP64 R5F524T8ADFM rarely sits in a standard adapter.
We store the LQFP64 board in anti-static foam until the read is done and the files are handed over.
We separate the 256 KB of flash from working memory in the archive, since mixing them hides the debug lock state.
Where the R5F524T8ADFM arrived with corroded pins, we clean the LQFP64 before the first bench attempt.
Photographs of the 64-pin board are filed with the write-up so the R5F524T8ADFM package can be audited later.
A recovered R5F524T8ADFM is cross-checked against the order photo so the marking matches the report.
A small reference card travels with the R5F524T8ADFM so the read bench knows the expected die orientation.
The RXv2 32-bit CISC @80 MHz, 5 V on the R5F524T8ADFM runs the read-back code in place, so the write-up notes the boot setup for a spare LQFP64.
Where a bootloader stage exists that region is captured in full for the R5F524T8ADFM, the usual third-party omission.
A second confirming read is offered when a customer wants proof no weak cell moved on the R5F524T8ADFM LQFP64.
The 256 KB of flash on the R5F524T8ADFM is read at the true addresses, not a relocated image a tool might invent.
The report includes the option bytes or signature contents so the R5F524T8ADFM lock can be re-applied if required.
The delivery keeps the original protection state of the R5F524T8ADFM, so a later comparison reuses the same settings.
For field units the R5F524T8ADFM usually has no source; the read-back image is the only copy that survives.
A LQFP64 R5F524T8ADFM sent cold in foam reads more reliably than one that travelled powered and warm.
We confirm the 64-pin count against the marking so the read-back R5F524T8ADFM netlist lines up with the board.