ETC HMS88T4804

HMS88T4804
HMS88T4804
New 80C52 Based High Security Smart Card IC
General Features
• TurboCore : High Security 8-bit 80C52 compatible CPU
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Multiple source vectorized interrupt system with two priority levels
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Multiple source reset system
• High reliable EEPROM for data storage
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4KB high reliability EEPROM
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1 to 32 bytes per a page
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64 bytes security area (OTP : One Time Programmable)
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Bytewise EEPROM programming and read access
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EEPROM endurance: 300,000 cycles at 25℃
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EEPROM data retention: min. 10 years
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EEPROM management library (EML) with intelligent write algorithm
• 1MHz to 6MHz operating clock frequency range for program execution from ROM
• Integrated On-Chip Memory
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48KB User ROM : non-visible & scramble ROM code
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256B IRAM
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1KB XRAM
• Integrated Peripherals
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Interrupt module for I/O interface and peripherals
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UART supporting ISO standard protocols T = 0 and T = 1
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True random number generator in hardware
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CRC module : 16 bit checksum according to ISO3309
2.7V to 5.5V extended operating voltage range
Power saving IDLE mode
Low power SLEEP mode
Pad configuration according to ISO/IEC 7816: VDD, VSS, CLK, RST and I/O1
Serial interface according to ISO/IEC 7816-3
Meets GSM 11.11 and 11.12 Specifications
High Security Smart Card IC
HMS88T4804
Security Features
• Data encryption according to T-DES standard
• ROM code not visible due to implantation
• Low/High supply voltage detector
• Low/High clock frequency detector
• Metal shield detector
• Internal power-on-reset
• Unique chip identification number for each chip
• Memory data / address encryption & scrambling
• Memory segmentation
• Random waitstate generator
ROM
48KB
EEPROM
4KB
XRAM
1KB
Instruction Bus
SECURITY
SENSORS
INTERRUPT
External Bus
CPU
(TurboCore)
MEU
IRAM
SFR Bus
IO
RST
CLK
UART
TIMER0/1
CRC
TDES
RNG
Block Diagram
High Security Smart Card IC