Secure 2 Click Board™

Product Code: MIKROE-2760

The Secure 2 Click Board™ carries the ATAES132A, a cryptographic coprocessor with secure hardware-based key storage from Microchip. The click is designed to run on either 3.3V or 5V power supply. Secure 2 click communicates with the target microcontroller over SPI and I2C interface, with additional functionality provided by the INT pin on the mikroBUS™ line. The click comes with stackable headers so you can put another click on the top of it. NOTE: The Secure 2 Click Board™comes with stacking headers which allow you to combine it with other clicks more easily by using just one mikroBUS™ socket. ATAES132A FEATURES The ATAES132A is a high-security, Serial Electrically-Erasable and Programmable Read-Only Memory (Serial EEPROM) providing both authentication and confidential nonvolatile data storage capabilities. Access restrictions for the 16 user zones are independently configured, and any key can be used with any zone. In addition, keys can be used for standalone authentication. The AES-128 cryptographic engine operates in AES-CCM mode to provide authentication, stored data encryption/decryption, and Message Authentication Codes.

Data encryption/decryption can be performed for internally stored data or for small external data packets, depending upon the configuration. Data encrypted by one ATAES132A device can be decrypted by another, and vice versa. SPECIFICATIONS Type Encryption Applications The Secure 2 Click Board™ can store up to 16 keys, certificates, miscellaneous read/write, read-only or secret data, consumption logging, and security configurations On-board modules ATAES132A - a cryptographic coprocessor with secure hardware-based key storage from Microchip Key Features Crypto element device with secure hardware-based key storage, 512 bit OTP (One Time Programmable) Bits for Fixed Information Interface I2C,SPI Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout of the Secure 2 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC NC 2 RST INT 15 AUTH Auth signaling Chip select CS 3 CS TX 14 NC SPI clock SCK 4 SCK RX 13 NC Slave data out for SPI SDO 5 MISO SCL 12 SCL I2C clock Slave data in for SPI SDI 6 MOSI SDA 11 SDA I2C data Power supply +3.3V 7 3.3V 5V 10 +5V Power supply Ground GND 8 GND GND 9 GND Ground