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Features
* Full Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 * * * * * * * * * * * *
Compatibility Single-chip Turnkey Solution Hardware Asymmetric Crypto Engine 2048-bit RSA Sign in 500 ms AVR(R) RISC Microprocessor Internal EEPROM Storage for RSA Keys 100 kHz System Management Bus (SMBusTM) Two-wire Interface Secure Hardware and Firmware Design and Chip Layout True Random Number Generator (RNG) - FIPS 140-2 Compliant NV Storage Space for 1280 bytes of user defined data 3.3V 10% Supply Voltage 28-lead TSSOP Package or 40-lead QFN Package 0-70C Temperature Range
Trusted Platform Module AT97SC3203S SMBus Two-Wire Interface Summary
Description
The AT97SC3203S is a fully integrated security module designed to be integrated into embedded systems. It implements version 1.2 of the Trusted Computing Group (TCG) specification for Trusted Platform Modules (TPM). The TPM includes a cryptographic accelerator capable of computing a 2048-bit RSA signature in 500 ms and a 1024-bit RSA signature in 100 ms. Performance of the SHA-1 accelerator is 50 s per 64-byte block. In most cases, TCG key generation operations will be completed using a proprietary mechanism in less than 1 msec. Table 1. Pin Configurations
Pin Name VCC SB3V VBAT GND RESET# SMBDAT SMBCLK AVRCLK Xtall/32K in XtalO GPIO6 TestI TestBI NC NBO Description 3.3V (10%) Supply Voltage Standby 3.3V ( 10%) Supply Voltage 2.5-4.0V Battery Input Ground Reset Input Active Low SMBus Data Input/Output SMBus Clock Input 33-MHz AVR Clock Input 32.768 kHz Crystal Input 32.768 kHz Crystal Output General Purpose Input/Output Test Input (disabled) Test Input (disabled) No Connect Not Bonded Out
5132AS-TPM-1/07
Note: This is a summary document. A complete document is available through your local Atmel sales office.
Figure 1. Pin Configurations
28-pin TSSOP 6.1 mm x 9.7 mm Body 0.65 mm Pitch
SMBCLK
40-pin QFN 6.0 mm x 6.0 mm Body 0.50 mm Pitch
SMBDAT
NBO
NBO
NBO
NBO
NBO
SMBDAT SMBCLK NC GND SB3V GPIO6 NC TestI TestBI VCC GND VBAT Xtall/32K in XtalO
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
NC NC NC GND VCC NC NC AVRCLK NC VCC GND NC RESET# NC
NC GND SB3V GPIO6 NC TestI TestBI VCC GND VBAT
1 2 3 4 5 6 7 8 9
40 39 38 37 36 35 34 33 32 31
NBO
30 29 28 27 26 25 24 23 22
NC
NC
NC GND VCC NC NC AVRCLK NC VCC GND NC
10
21 11 12 13 14 15 16 17 18 19 20
XTALO
XTALI/32K in
NBO
NC
Figure 2. AT97SC3203S Block Diagram
ROM Program
EEPROM Program
33 MHz AVR Clock Input SMBDAT SMBCLK GPIO6 VBAT 32.768 kHz RTC
(Optional)
AVR 8-Bit RISC CPU
RESET#
NBO
NBO
NBO
NBO
NBO
SRAM
SMBus Interface GPIO RNG
EEPROM Data CRYPTO Engine
Timer Physical Security Circuitry
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AT97SC3203S
5132AS-TPM-1/07
AT97SC3203S
Description (continued)
Communication to and from the TPM occurs through a modified 100-kHz SMBus twowire interface. The TPM includes a hardware random number generator, including a FIPS-approved Pseudo Random Number Generator, that is used for key generation and TCG protocol functions. The RNG is also available to the system to generate random numbers that may be needed during normal operation. The chip uses a dynamic internal memory management scheme to store multiple RSA keys. Other than the standard TCG commands (TPM_FlushSpecific, TPM_Loadkey2), no system intervention is required to manage this internal key cache. Full documentation for TCG primitives can be found on the TCG Web site located at www.trustedcomputinggroup.org. This specification includes only mechanical, electrical and SMBus protocol information
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5132AS-TPM-1/07
Table 2. Ordering Information
Ordering Code AT97SC3203S-X5A40 AT97SC3203S-X5M40 Package 28A3 (28-pin TSSOP) 40ML1 (40-pin QFN) lead-free, RoHS lead-free, RoHS Operation Range Commercial (0 to 70 C) Commercial (0 to 70 C)
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AT97SC3203S
5132AS-TPM-1/07
AT97SC3203S
Package Drawing
28A3 - TSSOP
b
L L1 E E1
e
Top View
End View
COMMON DIMENSIONS (Unit of Measure = mm)
A
D
A2
SYMBOL D E E1
MIN 9.60
NOM 9.70 8.10 BSC
MAX 9.80
NOTE 2, 5
6.00 - 0.80 0.19
6.10 - 1.00 - 0.65 BSC
6.20 1.20 1.05 0.30
3, 5
Side View
A A2 b e L L1
4
0.45
0.60 1.00 REF
0.75
Notes:
1. This drawing is for general information only. Please refer to JEDEC Drawing MO-153, Variation DB for additional information. 2. Dimension D does not include mold Flash, protrusions or gate burrs. Mold Flash, protrusions and gate burrs shall not exceed 0.15 mm (0.006 in) per side. 3. Dimension E1 does not include inter-lead Flash or protrusions. Inter-lead Flash and protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.08 mm total in excess of the b dimension at maximum material condition. Dambar cannot be located on the lower radius of the foot. Minimum space between protrusion and adjacent lead is 0.07 mm. 5. Dimension D and E1 to be determined at Datum Plane H. 1/8/02
R
2325 Orchard Parkway San Jose, CA 95131
TITLE 28A3, 28-lead, 6.1 x 9.7 mm Body, 0.65 pitch, Thin Shrink Small Outline Package (TSSOP)
DRAWING NO. 28A3
REV. A
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5132AS-TPM-1/07
40ML1 - QFN
A D N A2 A3 1 2 3 E
Pin 1 Indicator
A1
Top View
L 0
Side View
D2
SYMBOL COMMON DIMENSIONS (Unit of Measure = mm) MIN NOM 6.00 BSC 6.00 BSC 3.95 3.95 0.0 4.10 4.10 0.85 0.01 0.65 0.20 REF 0.30 0.40 0.50 BSC 0.18 0.23 0.30 2 0.50 4.25 4.25 0.90 0.05 0.70 MAX NOTE
E2 1 2 3 b
D E D2 E2 A A1 A2
Notes:
1. This drawing is for general information only. Refer to JEDEC Drawing MO-220, Variation WJJD-2, for proper dimensions, tolerances, datums, etc. 2. Dimension b applies to metallized terminal and is measured between 0.15 mm and 0.30 mm from the terminal tip. If the terminal has the optional radius on the other end of the terminal, the dimension should not be measured in that radius area.
R
2325 Orchard Parkway San Jose, CA 95131
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AT97SC3203S
5132AS-TPM-1/07
N e PIN1 ID
A3 L e b
Bottom View
3/9/04 TITLE 40ML1, 40-lead 6.0 x 6.0 mm Body, 0.50 mm Pitch, Molded Quad Flat No Lead Package (MLF2) DRAWING NO. 40ML1 REV. A
AT97SC3203S
Revision History
Doc. Rev. 5132AS
Date 1/2007
Comments Implemented revision history Added `Summary' to page 1 Revised summary disclaimer text on page 1
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5132AS-TPM-1/07
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5132AS-TPM-1/07

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