DS5240 is a security IC with FIPS140 and Common Criteria certifications, and has a cryptographic boundary to prevent eavesdropping.
The DS5240 is a high‑speed 8051‑compatible security processor designed to meet FIPS‑140 and Common Criteria certifications. It incorporates a range of on‑chip security features such as a fine‑line top‑level metal grid, tamper‑detect sensors, rapid SRAM zeroization, and DES/3DES cryptographic engines.
The device is offered in several plastic MQFP packages with temperature ranges from 0 °C to +70 °C (or –40 °C to +85 °C for extended versions). Ordering information, block diagram, and detailed specifications are provided for designers integrating the DS5240 into secure applications.
| Maximum Clock Speed | 25 MHz |
|---|---|
| Internal SRAM | 5 kB |
| Stack Size | 1 kB |
| Package Type | 80‑pin Plastic MQFP |
| Operating Temperature Range | 0 °C to +70 °C |
It is designed to meet the physical security requirements of FIPS‑140 and Common Criteria certifications.
The chip uses a fine‑line top‑level metal grid, on‑chip environmental sensors, and rapid SRAM zeroization to detect and respond to tampering.
It includes DES and 112‑bit key triple‑DES engines for secret‑key cryptography.