ESAM Security Module-Fornitore globale

402, Gate A, Building A, Xinyuan Science and Technology Park, Shahe Town, Changping District, Beijing

The ESAM security module is a secure access module that encapsulates a security chip with an operating system (COS) in a DIP8 or SOP8 module. Embedding it into smart (card) meters for water, electricity, gas, and heating, set-top boxes, smart appliances, or other specialized devices can complete various functions such as data encryption and decryption, two-way identity authentication, access control, communication line protection, temporary key export, and data file storage.

The security chips used in the ESAM security module of Rongtong High tech are all CIU51G16B chips with independent intellectual property rights certified by the National Commercial and Information Commission.

The Rongtong ESAM security module is safeguarding the information and payment security of over 300 million households' water, electricity, and gas meters.

hardware features

8-bit HC8051 CPU core, fully compatible with the standard 8051 instruction set

The CPU operates under an internal clock with a frequency of 3.5MHz or 7MHz

256 byte internal data RAM, 1.7K external data XRAM

44K bytes ROM, 16K bytes EEPROM

25 years of data retention time

Many 500000 repeated erasures, unlimited read times

Two 8051 compatible 16 bit timers

Two Timer interrupt sources

Supports two power-saving modes: Standby and Stop Clock

Power supply voltage: 2.7V~5.5V, optional 1.8V~5.5V

Support external clock: 1MHz~5MHz

Supports page writing of 1-64 bytes (PAGE Write), typical time: 5ms

Supports Chip Erase, typical time: 23ms, supports Chip Write, typical time: 23ms

Support Page Write Only, typical time: 2.5ms, support Page Erase Only, typical time: 2.5ms

ISO 7816-3 serial interface (T=0), supports multiple baud rates (9.77kbps~161kbps at an external clock frequency of 5MHz)

Temperature: -40 ° C~+85 ° C, ESD greater than 3000V

Security features

Support national security SM1 algorithm, optional support for 3DES algorithm

Hardware DES coprocessor capable of resisting SPA and DPA attacks

A true random number generator that meets the FIPS140-2 standard

The internal clock oscillator of the chip provides a clock to the system, ensuring that the CPU operation is not affected by external environmental interference

External voltage detection mechanism

External frequency detection mechanism

Internal voltage detection and Power On protection mechanism

Memory protection mechanism

Address scrambling

data encryption

Application industry

Smart meters, water and electricity meters, gas meters, heating meters

Security certification for financial terminal devices and smart home appliances; Set top box for pay TV

Software protection, fuel dispenser, encrypted keyboard