| Core / Architecture | Arm Cortex-M33, single core |
| Clock | CASPER crypto/FFT accelerator and PRINCE on-the-fly flash encryption exceed even the LPC55S16's security feature set |
| Memory | 512 KB Flash; 256 KB SRAM |
| Interfaces | Flexcomm USART/SPI/I²C, ADC, timers, GPIO (LPC5500 family peripheral set) |
| Supply Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40°C to +105°C |
| Security Features | Full secure LPC55S variant: TrustZone, secure boot, PUF, CASPER crypto/FFT engine, PRINCE flash encryption, AES/SHA/RSA support |
| Package Details | 100-HTQFP, 14×14 mm |
NXP Semiconductors
