ST23 Contact Secure MCU with 4 Kbytes EEPROM, enhanced security

SB23ZE04 devices are secure microcontrollers specially designed for secure smartcard applications.

They are based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes of linear addressing space. SB23ZE04 devices are manufactured using an advanced highly reliable ST CMOS EEPROM technology.

An ISO/IEC 7816-3 EMV-compliant asynchronous receiver transmitter (IART) communication peripheral is available.

Key Features

  • Hardware features
    • Enhanced 8/16-bit ST23 CPU core with 16 Mbytes of linear addressable memory
    • 140 Kbytes of User ROM
    • 4 Kbytes of User RAM
    • 4 Kbytes of User EEPROM including 128 bytes of User OTP area:
      • Highly reliable CMOS EEPROM submicron technology
      • 30-year data retention at 25°C
      • 500,000 Erase/Write cycles endurance at 25° C
      • 1 to 32 byte Erase or Program in 1.0 ms
    • Operating temperature: –25° to +85°C
    • Three 8-bit timers with watchdog and interrupt capability
    • 1.62 to 5.5V supply voltages
    • External clock frequency up to 10 MHz
    • High performance provided by:
    • CPU clock frequency up to 28 MHz
    • Power-saving Standby state
    • Contact assignment compatible with ISO/IEC 7816-3 standards
    • Asynchronous receiver transmitter (IART) for high speed serial data support (ISO/IEC 7816-3 T=0/T=1 and EMV™ compliant)
    • ESD protection greater than 5 kV (HBM)
  • Security features
    • Active shield
    • Memory protection unit (MPU)
    • Protection mechanisms against faults
    • True random number generator (TRNG) (AIS-31 Class P2 compliant)
    • 16-bit Cyclic Redundancy Check (CRC) calculation block (ISO/IEC 13239)
    • Unique serial number on each die
    • Three-key Triple DES accelerator (EDES+)
  • Development environment
    • Software development and firmware generation are supported by a comprehensive set of development tools dedicated to software design and validation: C compiler, simulator and emulator
  • アプリケーション
    • Banking



Description バージョン サイズ
DB1952 DB1952: Secure MCU with enhanced security and 4-Kbyte EEPROM 1.1 237 KB
サポート & コミュニティ

サンプル & 購入

製品型番 Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
SB23ZE04 Active - - NEC 3A991A2 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
SB23ZE04 アクティブDICE-N/A

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.