BQ26150 Datasheet, PDF (4/16 Pages) Texas Instruments – BATTERY PACK SECURITY AND AUTHENTICATION IC FOR PORTABLE APPLICATIONS (bqSECURE)

bq26150
SLUS641A – JANUARY 2005 – REVISED JULY 2005
PIN ASSIGNMENT
PWR HDQP
5
4
1 23
TERMINAL
NAME NO.
HDQ
1
VSS
2, 3
HDQP
4
PWR
5
HDQ V_SS V_SS
TERMINAL FUNCTIONS
I/O
DESCRIPTION
I/O Single-wire HDQ interface to host
I Ground
I/O Single-wire HDQ interface to 2nd HDQ device
I/O Power capacitor
FUNCTIONAL BLOCK DIAGRAM
Private Nonvolatile
Memory
96 bits
Plaintext ID
16 bits
Plaintext
Polynomial
16 bits
Plaintext Seed
Public Nonvolatile
Memory
16 bits
Encrypted
Polynomial
96 bits
Encrypted ID
16 bits
Encrypted Seed
128 bits
General Use
Authentication
CRC
Public RAM
8 bits
Control
32 bits
Message
16 bits
Auth Code
Power Control
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HDQ
Communication
4