ISL6296DH-T Intersil, ISL6296DH-T Datasheet

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ISL6296DH-T

Manufacturer Part Number
ISL6296DH-T
Description
IC BATT AUTHENTICATION SOT-23
Manufacturer
Intersil
Series
FlexiHash™r
Datasheet

Specifications of ISL6296DH-T

Function
Battery Authentication
Battery Type
Li-Ion, Li-Pol, NiMH
Voltage - Supply
2.6 V ~ 4.8 V
Operating Temperature
-25°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SC-74A, SOT-753
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FlexiHash™ For Battery Authentication
The ISL6296 is a highly cost-effective fixed-secret hash
engine based on Intersil’s FlexiHash™ technology. The
device authentication is achieved through a
challenge-response scheme 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 ISL6296
offers the same level of effectiveness as other significantly
more expensive high maintenance monetary-grade hash
algorithm and authentication schemes.
The ISL6296 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 ISL6296 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 non-crystal 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 UART’s or a single
GPIO (general purpose input and output) pin of a
microprocessor.
A clone prevention solution utilizing the ISL6296 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.
Pinouts
VDD
VSS
VDD
VSS
NC
NC
N/C
1
2
3
4
1
2
3
(8 LD 2X3 TDFN)
(5 LD SOT-23)
TOP VIEW
TOP VIEW
ISL6296
ISL6296
®
1
Data Sheet
5
4
8
7
6
5
XSD
TIO
XSD
NC
NC
TIO
FlexiHash is a trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Challenge-response based authentication scheme using
• Fast and flexible authentication process. Multi-pass
• 16x8 OTP ROM stores up to three sets of 32-Bit
• FlexiHash engine uses two sets of 32-Bit secrets for
• Non-unique mapping of the secret key to an 8-Bit
• Supports 1-cell Li-ion/Li-Poly and 3-cell series NiMH
• XSD single-wire host bus interface communicates with all
• True “Zero Power” Sleep mode - (automatically entered
• 5 Ld SOT-23 and 8 Ld TDFN (2mmx3mm) packages
• -25°C to +85°C operating temperature range
• Pb-free available (RoHS compliant)
Applications
• Battery Pack Authentication
• Printer Cartridges
• Add-on Accessories
• Other Non-Monetary Authentication Applications
Related Literature
• Application Note AN1165 “ISL6296 Evaluation Kit”
• Application Note AN1166 “FlexiHash™ Engine Algorithm”
• Application Note AN1167 “Implementing XSD Host Using
• Technical Brief TB363 “Guidelines for Handling and
32-Bit challenge code and 8-Bit authentication code.
authentication can be used to achieve the highest security
level if necessary.
host-selectable secrets with additional programmable
memory for storage of up to 48 bits of ID code and/or pack
information.
authentication code generation.
authentication code maximizes hacking difficulty due to
need for exhaustive key search (superior to SHA-1).
battery packs (2.6V ~ 4.8V operation), or powered by the
XSD bus.
8250-compatible UART’s or a single GPIO. Supports CRC
on read data and transfer bit-rate up to 23kbps.
after a bus inactivity time-out period)
a GPIO”
Processing Moisture Sensitive Surface Mount Devices
(SMDs)
March 21, 2008
Copyright © Intersil Americas Inc. 2005, 2007, 2008. All Rights Reserved.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
ISL6296
FN9201.2

Related parts for ISL6296DH-T

ISL6296DH-T Summary of contents

Page 1

... TIO ” CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 FlexiHash is a trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. ISL6296 FN9201.2 | Intersil (and design registered trademark of Intersil Americas Inc. ...

Page 2

... PART (Note 1) MARKING ISL6296DHZ-T 296Z ISL6296DRZ-T 96Z ISL6296DH-T 296D ISL6296EVAL1 ISL6296 Evaluation Kit * Please refer to TB347 for details on reel specifications. NOTES: 1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...

Page 3

... Thermal Resistance (Typical) SOT-23 Package (Note 2x3 TDFN Package (Notes Maximum Junction Temperature (Plastic Package +125°C Maximum Storage Temperature Range . . . . . . . . . .-40°C to +125°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = -25°C to +85° SYMBOL TEST CONDITIONS V During normal operation ...

Page 4

Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature range of the device as follows: T PARAMETER XSD Input Deglitch Time Device Wake-Up Time Device Sleep Wait Time Auto-Sleep Time-Out Period OTP ROM ...

Page 5

Typical Applications PACK+ XSD PACK- FIGURE 1. TYPICAL APPLICATION WITH THE ISL6296 POWERED BY THE BATTERY PACK+ XSD PACK- FIGURE 2. TYPICAL APPLICATION WITH THE ISL6296 POWERED BY THE XSD BUS Block Diagram XSD 5 ISL6296 ...

Page 6

Theory of Operation The ISL6296 contains all circuitry required to support battery pack authentication based on a challenge-response scheme. It provides a 16-Byte One-Time Programmable Read-Only Memory (OTPROM) space for the storage 96-Bit of secret for the ...

Page 7

OTP ROM The 16-Byte OTP ROM memory is based on EEPROM technology and is incorporated into the ISL6296 for storage of non-volatile information. OTP ROM contents (refer to Table 8) can include but not limited to: 1) Device default settings ...

Page 8

Secret 64-bit Secret 32-bit Hash Function 32-bit Hash Function FlexiHash FlexiHash Engine Engine 32-bit Hash Seed 32-bit Hash Seed FIGURE 4. AUTHENTICATION PROCESS FLOW DIAGRAM It is recommended that device authentication be done once in a while to maximize ...

Page 9

8-bit CRC Calculator 8-bit CRC Calculator 8-bit CRC Calculator MA[7:6] MA[7:6] MA[7:6] Polynom = Polynom = Polynom = ...

Page 10

... XSD Host Bus Interface Communication with the host is achieved through XSD, a light-weight subset of Intersil’s ISD single-wire bus interface. XSD is a programmable-rate pseudo-synchronous bidirectional host-initiated instruction-based serial communication interface that allows up to two slave devices to be attached and addressed separately. It includes features to enable quick and reliable communication ...

Page 11

HOST Open-Drain Port Pin TX RX FIGURE 7. THE CIRCUIT MODEL FOR THE XSD SERIAL BUS XSD TABLE 2. HOST TIMING DEFINITIONS OF SYMBOLS AND BUS SIGNALING PARAMETER SYM Bit Time 0. ...

Page 12

BYTES BYTES BYTES FIGURE 9. THE 16-BIT INSTRUCTION FRAME FIELD DEFINITION OPCODE DESCRIPTION 00 Write Operation 01 Read Operation (normal) 10 Read Operation (with CRC) Read from device register. Append 1-Byte CRC to the end of the ...

Page 13

Bus Transaction Protocol The XSD bus for the ISL6296 defines three types of bus transactions. Figure 10 shows the bus transaction protocol. The blue color represents the signal sent by the host and the green color stands for the signal ...

Page 14

... Table 10 describes DD the mapping of the Authentication registers. Bank 3 is reserved for Intersil production testing only, and will not be accessible during normal operation. Accessing the Test and Trim Registers when not in test mode will result in a bus error. ...

Page 15

TABLE 9. CONTROL AND STATUS REGISTERS (BANK 1) ADDRESS NAME DESCRIPTION 1-00 MSCR Master Control 1-01 STAT Device Status ADDRESS NAME DESCRIPTION 2-00 SESL Secrets Selection 2-01 CHLG Challenge Code Register 2-05 AUTH Authentication Code Register TABLE 11. DEFAULT CONFIGURATION ...

Page 16

ADDRESS 0-06/07/08/09: AUTHENTICATION SECRET SET #2 (SE2A/B/C/D) These address locations store the second set of secrets to be used for hash calculation. Reading and writing to this register can be disabled by setting the SLO[1] bit at OTP ROM location ...

Page 17

... One way is to use a spare Universal Asynchronous Receiver/Transmitter (UART). A general purpose input/output (GPIO) can be used if no UART is available for the XSD communication. Refer to application note AN1167 available from Intersil for more information regarding how to implement the XSD bus within a microprocessor. Pull-Up Resistor Selection ...

Page 18

Small Outline Transistor Plastic Packages (SOT23- 0.20 (0.008 0.10 (0.004 WITH PLATING b1 c BASE METAL ...

Page 19

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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