Features
- Challenge-response based authentication scheme using 32-bit challenge code and 8-bit authentication code
- Fast and flexible authentication process. Multipass authentication can be used to achieve the highest security level if necessary
- 16x8 OTP ROM stores up to three sets of 32-bit host selectable secrets with additional programmable memory for storage of up to 48 bits of ID code and/or pack information
- FlexiHash engine uses two sets of 32-bit secrets for authentication code generation
- Nonunique mapping of the secret key to an 8-bit authentication code maximizes hacking difficulty due to need for exhaustive key search (superior to SHA-1)
- Supports 1-cell Li-ion/Li-Poly and 3-cell series NiMH battery packs (2.6V ~ 4.8V operation), or powered by the XSD bus
- XSD single-wire host bus interface communicates with all 8250-compatible UARTs or a single GPIO. Supports CRC on read data and transfer bit-rate 5.78kbps
- True "Zero Power" sleep mode - automatically entered after a bus inactivity time-out period
- 5 Ld SOT-23, 8 Ld TDFN and 8 Ld µTQFN packages
- -25°C to +85°C operating temperature range
- Pb-free (RoHS compliant)
Description
Support is limited to customers who have already adopted these products.
The ISL6296A is a highly cost-effective fixed-secret hash engine based on Intersil’s FlexiHash™ technology. The device's authentication is achieved through a challenge response scheme, which is customized for low-cost applications where cloning via eavesdropping without knowledge of the device's secret code is not economically viable. When used for its intended applications, the ISL6296A offers the same level of effectiveness as other significantly more expensive high maintenance monetary-grade hash algorithm and authentication schemes. The ISL6296A has a wide operating voltage range and is suitable for direct powering from a 1-cell Li-ion/Li-Poly or a 3-cell series NiMH battery pack. The ISL6296A can also be powered by the XSD bus when the bus pull-up voltage is 3. 3V or higher. The device connects directly to the cell terminals of a battery pack and includes on-chip voltage regulation circuit, POR and a noncrystal based oscillator for bus timing reference. Communication with the host is achieved through a single-wire XSD interface (a light-weight subset of Intersil’s ISD bus interface). The XSD bus is compatible for use with serial ports offered by all 8250 compatible UARTs or a single GPIO (General Purpose Input and Output) pin of a microprocessor. A clone prevention solution utilizing the ISL6296A offers safety and revenue protection at the lowest cost and power and is suitable for protection against after-market replacement for a wide variety of low-cost applications.
Applications
- Battery Pack Authentication
- Printer Cartridges
- Add-on Accessories
- Other Non-Monetary Authentication Applications
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- Product AdvisoryPDF 33 KB PA10039 Apr 14, 2010
- Application NotePDF 397 KB an1684 Jan 19, 2004AI-generated Summary: The document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages, and clarifies no intellectual property licenses are granted. Products are categorized by quality grades with specific application recommendations. Users must comply with laws, avoid unauthorized modifications, and ensure safe use within specified conditions. Contact details for Renesas Electronics sales offices worldwide are provided.
- Application NotePDF 509 KB an1681 Jan 19, 2004AI-generated Summary: The document explains grounding techniques for PCB layouts using a dual op amp example on a single-layer copper board. It compares three grounding schemes: a center spine ground trace, an outer ground plane, and a split/star ground plane, highlighting the benefits of single-point grounding to minimize noise and antenna effects. It emphasizes following current paths, minimizing loop lengths, and ensuring close forward and return paths to reduce interference. The document also includes disclaimers on product use, quality grades, safety, and legal compliance.
- Application NotePDF 536 KB an1167 Aug 28, 2003AI-generated Summary: The document explains how to implement an XSD bus host using a single GPIO pin, detailing byte transmission and reception with error checking. It specifies timing requirements for bit writing and reading, describes the instruction frame structure, and provides procedures for writing to and reading from EEPROM. The authentication process involves selecting secrets, sending a challenge code, and reading the hash result. Example C code snippets illustrate bus communication and error handling.
- DocumentPDF 293 KB tb363 May 04, 2018
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- Application NotePDF 397 KB an1684 Jan 19, 2004AI-generated Summary: The document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages, and clarifies no intellectual property licenses are granted. Products are categorized by quality grades with specific application recommendations. Users must comply with laws, avoid unauthorized modifications, and ensure safe use within specified conditions. Contact details for Renesas Electronics sales offices worldwide are provided.
- Application NotePDF 509 KB an1681 Jan 19, 2004AI-generated Summary: The document explains grounding techniques for PCB layouts using a dual op amp example on a single-layer copper board. It compares three grounding schemes: a center spine ground trace, an outer ground plane, and a split/star ground plane, highlighting the benefits of single-point grounding to minimize noise and antenna effects. It emphasizes following current paths, minimizing loop lengths, and ensuring close forward and return paths to reduce interference. The document also includes disclaimers on product use, quality grades, safety, and legal compliance.
- Application NotePDF 536 KB an1167 Aug 28, 2003AI-generated Summary: The document explains how to implement an XSD bus host using a single GPIO pin, detailing byte transmission and reception with error checking. It specifies timing requirements for bit writing and reading, describes the instruction frame structure, and provides procedures for writing to and reading from EEPROM. The authentication process involves selecting secrets, sending a challenge code, and reading the hash result. Example C code snippets illustrate bus communication and error handling.
Application Notes & White Papers (3)
- Product AdvisoryPDF 33 KB PA10039 Apr 14, 2010
Product Notices (PCN, EOL, etc) (1)
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