FEATURES
• 8052 high speed CPU
• 100k-bytes EEPROM with 1 to 128 byte programming, mask ROM like protection for program area
• 256 plus 3K bytes RAM
• Operating voltages: 3V ±10% or 5V ±10%
• 12MHz maximum internal bus frequency for 3V and 5V operations
• GSM mode for power saving
• Random number generator
• One bidirectional I/O line (1-bit ISO 7816), with
internal pull-up and external interrupt capability
• Hardware high speed SCI with T=0 error
detection
• 16-bit programmable timer with prescaler
• Built-in RC clock of 12MHz
• Watchdog system
• Multi-bus speeds (÷1, ÷2, ÷4, or ÷16)
• High voltage protection
• Low-voltage reset
• Clock-high frequency filter
• Clock-low frequency reset
• Maximum operating current in GSM mode:
10mA at 5V and 6mA at 3V
• Low power Idle mode