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March 2016

DocID027118 Rev 2

1/6

ST33GxxxA

Secure MCU with 32-bit ARM® SecurCore® SC300™ CPU,

SWP interface and high-density Flash memory, automotive grade

Data brief

Features

Hardware features

 ARM® SecurCore® SC300™ 32-bit RISC core

cadenced at 25 MHz

 30 Kbytes of user RAM

 Up to 1280 Kbytes of user Flash memory with

OTP area

 Asynchronous receiver transmitter supporting

ISO/IEC 7816-3 T=0 and T=1 protocols (Slave

mode supported)

 Single wire protocol (SWP) interface for

communications with NFC router (ETSI

102-613 compliant)

 Serial peripheral interface (SPI) master/slave

interface

 Three 16-bit timers with interrupt capability

 Seven general-purpose I/Os enabling

proprietary protocol implementation

 1.8 V, 3 V and 5 V supply voltage ranges

 External clock frequency from 1 up to 10 MHz

 Current consumption compatible with GSM

and ETSI specifications

 Power-saving standby state

 Contact assignment compatible with

ISO/IEC 7816-2

 ESD protection greater than 4 kV (HBM)

Security features

 Active shield

 Memory protection unit (MPU)

 Monitoring of environmental parameters

 Protection against faults

 16- and 32-bit CRC calculation block (ISO

13239, IEEE 802.3, etc.)

 True random number generator

 Unique serial number on each die

 Hardware security-enhanced DES accelerator

 Hardware security-enhanced AES accelerator

 NESCRYPT coprocessor for public key

cryptography algorithm

Applications

Major ST33G1M2A applications include:

 Mobile communications (Automotive grade)

 Java Card™ applications

 AECQ100 compliant

DFN8 6 × 5 mm

Table 1. Device summary

Part number

Memory size in Kbytes

ST33G1M2A

1280

ST33G1M0A

1024

ST33G896A

896

ST33G768A

768

ST33G640A

640

ST33G512A

512

ST33G384A

384

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