R5F524TEADFP: 5 V Motor Silicon In LQFP100

The R5F524TEADFP is a member of Renesas’ RX24T group: an RXv2 32-bit CISC core at 80 MHz on 5 V, with 512 KB of flash and 64 KB of SRAM in a LQFP100. A services desk performs the package work and issues the checked file for the R5F524TEADFP.

Where The Read Protection Lives

The R5F524TEADFP protects its code with a debug ID code in the option-setting memory, compared against a value the debugger presents. Access to the R5F524TEADFP is gated by an ID code in the option area area, checked each time the background debug interface connects. Our readout-protection note covers the general case for the RXv2 32-bit CISC @80 MHz, 5 V family.

Peripheral Set

The RX24T silicon in the R5F524TEADFP is built for motors: MTU3 complementary PWM, a GPT unit and a 12-bit ADC near 0.5 us. What distinguishes the R5F524TEADFP is its peripheral mix aimed at drives: MTU3 PWM, GPT timers, a fast 12-bit ADC and a 10-bit DAC. The STM32H7 memory note illustrates the same volatile-context hazard on a newer Cortex-M7.

Bench Routine

We read 512 KB of flash, then the 8 KB data flash, then the option area memory, then a live RAM snapshot, and repeat for a checksum. The capture order on the R5F524TEADFP is code flash, data flash, option memory, then a confirming second pass on the 5 V rail.

Flash And Working Memory

Three memory types share the R5F524TEADFP: 512 KB of flash for the program, an 8 KB data flash for EEPROM emulation, and 64 KB of SRAM. The R5F524TEADFP splits storage into 512 KB of flash, a dedicated 8 KB data flash and 64 KB of SRAM for runtime state. The related STM32 readout case is a useful contrast on a different Cortex-M vendor.

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 R5F524TEADFP LQFP100. Our connected R5F524TAADFP article handles a neighbouring variant of the R5F524TEADFP group.

A LQFP100 R5F524TEADFP sent cold in foam reads more reliably than one that travelled powered and warm.

The 64 KB of SRAM on the R5F524TEADFP is captured live only when the hardware still comes up on power.

Where a bootloader stage exists that region is captured in full for the R5F524TEADFP, the usual third-party omission.

The RXv2 32-bit CISC @80 MHz, 5 V on the R5F524TEADFP is documented in the report so a replacement part boots identically.

Where decapsulation was needed the bare die of the R5F524TEADFP is photographed before the lid is fully removed.

A R5F524TEADFP that has been partially read elsewhere often arrives with the option area region already corrupted.

On the R5F524TEADFP the reset behaviour is captured, since a copy must match the original boot to run.

We separate the 512 KB of flash from working memory in the archive, since mixing them hides the read lock state.

Our report flags any external memory the LQFP100 board carried, since the R5F524TEADFP image may span parts.

We note the batch code on the LQFP100 R5F524TEADFP, which sometimes explains a quirk in the silicon revision.

The customer receives the files with a short note on reflashing the LQFP100 without tripping the read lock again.

A recovered R5F524TEADFP is cross-checked against the order photo so the marking matches the report.

For field units the R5F524TEADFP usually has no source; the captured image is the only copy that survives.

The 100-pin R5F524TEADFP is logged against its order code so a repeat job reuses the same bench setup.

We keep the capture bench notes with the order so the R5F524TEADFP protection level is never lost between reads.

Our turnaround notes record the socket used, because the LQFP100 R5F524TEADFP rarely sits in a standard adapter.

The customer gets a plain summary with the R5F524TEADFP files, written for a non-engineer to follow.

We note any CAN or USB use on the LQFP100, because the R5F524TEADFP peripheral setup lives in the flash.

A small reference card travels with the R5F524TEADFP so the capture bench knows the expected die orientation.

We confirm the 100-pin count against the marking so the captured R5F524TEADFP netlist lines up with the board.

The LQFP100 outline of the R5F524TEADFP matches other group members, so the marking confirms the exact die fitted.