Texas Instruments SHA-1/HMAC BASED SECURITY AND AUTHENTICATION IC BQ26100EVM BQ26100EVM Scheda Tecnica
Codici prodotto
BQ26100EVM
www.ti.com
FEATURES
APPLICATIONS
DESCRIPTION
SDQ
P–
C1
0.1 F
m
+
VSS
CO
BAT
OC
DO
bq26100
SDQ
VSS
VSS
PWR
VSS
VSS
R1
4.7 kW
4.7 kW
P+
Protector
SLUS696A – JUNE 2006 – REVISED FEBRUARY 2007
SHA-1/HMAC BASED SECURITY AND AUTHENTICATION IC WITH SDQ INTERFACE
•
Cellular Phones
•
Provides Authentication of Battery Packs
Through SHA-1 Engine Based HMAC
Through SHA-1 Engine Based HMAC
•
PDA and Smart Phones
•
MP3 Players
•
160 Bytes OTP, 16 Bytes EEPROM
•
Digital Cameras
•
Internal Time-Base Eliminates External Crystal
•
Internet Appliances
Oscillator
•
Handheld Devices
•
Low Power Operating Modes:
–
Active: < 50
µ
A
–
Sleep: 8
µ
A Typical
•
Single-Wire SDQ Interface
•
Powers Directly From the Communication Bus
•
6 Lead SON Package
The bq26100 provides a method to authenticate battery packs, ensuring that only packs manufactured by
authorized sub-contractors are used in the end application. The security is achieved using the SHA-1 hash
function inside the widely adopted HMAC construction. A unique 128-bit key is stored in each bq26100 device,
allowing the host to authenticate each pack.
authorized sub-contractors are used in the end application. The security is achieved using the SHA-1 hash
function inside the widely adopted HMAC construction. A unique 128-bit key is stored in each bq26100 device,
allowing the host to authenticate each pack.
The bq26100 communicates to the system over a simple one-wire bi-directional serial interface. The 5-kbits/s
SDQ bus interface reduces communications overhead in the external microcontroller. The bq26100 also derives
power over the SDQ bus line via an external capacitor.
SDQ bus interface reduces communications overhead in the external microcontroller. The bq26100 also derives
power over the SDQ bus line via an external capacitor.
TYPICAL APPLICATION
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.