ATMEL AT97SC3203S Trusted platform module Datasheet

Features
• Full Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2
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Compatibility
Single-chip Turnkey Solution
Hardware Asymmetric Crypto Engine
2048-bit RSA Sign in 500 ms
AVR® RISC Microprocessor
Internal EEPROM Storage for RSA Keys
100 kHz System Management Bus (SMBus™) 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
0–70°C Temperature Range
Trusted
Platform
Module
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).
AT97SC3203S
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 µs per 64-byte block. In most cases, TCG key generation
operations will be completed using a proprietary mechanism in less than 1 msec.
SMBus
Two-Wire
Interface
Table 1. Pin Configurations
Pin Name
Description
VCC
3.3V (±10%) Supply Voltage
SB3V
Standby 3.3V (± 10%) Supply Voltage
VBAT
2.5–4.0V Battery Input
GND
Ground
RESET#
Reset Input Active Low
SMBDAT
SMBus Data Input/Output
SMBCLK
SMBus Clock Input
AVRCLK
33-MHz AVR Clock Input
Xtall/32K in
32.768 kHz Crystal Input
XtalO
32.768 kHz Crystal Output
GPIO6
General Purpose Input/Output
TestI
Test Input (disabled)
TestBI
Test Input (disabled)
NC
No Connect
NBO
Not Bonded Out
Summary
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
NBO
NBO
NBO
NBO
NBO
NBO
NC
NC
40 39 38 37 36 35 34 33 32 31
NC
1
30
NC
GND
2
29
GND
SB3V
3
28
VCC
GPIO6
4
27
NC
NC
5
26
NC
TestI
6
25
AVRCLK
TestBI
7
24
NC
VCC
8
23
VCC
GND
9
22
GND
VBAT
10
NC
RESET#
NC
NBO
NBO
NBO
NBO
NBO
21
11 12 13 14 15 16 17 18 19 20
XTALO
NC
NC
NC
GND
VCC
NC
NC
AVRCLK
NC
VCC
GND
NC
RESET#
NC
XTALI/32K in
28
27
26
25
24
23
22
21
20
19
18
17
16
15
SMBCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NBO
SMBDAT
SMBCLK
NC
GND
SB3V
GPIO6
NC
TestI
TestBI
VCC
GND
VBAT
Xtall/32K in
XtalO
SMBDAT
40-pin QFN
6.0 mm x 6.0 mm Body
0.50 mm Pitch
28-pin TSSOP
6.1 mm x 9.7 mm Body
0.65 mm Pitch
Figure 2. AT97SC3203S Block Diagram
SMBDAT
SMBCLK
GPIO6
ROM
Program
EEPROM
Program
33 MHz
AVR
Clock Input
AVR
8-Bit RISC
CPU
EEPROM
Data
SMBus Interface
GPIO
RNG
VBAT
32.768 kHz
SRAM
RTC
CRYPTO
Engine
(Optional)
Timer
Physical
Security
Circuitry
2
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
3
5132AS–TPM–1/07
Table 2. Ordering Information
4
Ordering Code
Package
Operation Range
AT97SC3203S-X5A40
28A3 (28-pin TSSOP)
lead-free, RoHS
Commercial (0° to 70° C)
AT97SC3203S-X5M40
40ML1 (40-pin QFN)
lead-free, RoHS
Commercial (0° to 70° C)
AT97SC3203S
5132AS–TPM–1/07
AT97SC3203S
Package Drawing
28A3 – TSSOP
b
L
L1
E E1
e
End View
Top View
COMMON DIMENSIONS
(Unit of Measure = mm)
D
A
A2
SYMBOL
D
MIN
9.60
E
Side View
MAX
NOTE
9.70
9.80
2, 5
3, 5
8.10 BSC
E1
6.00
6.10
6.20
A
–
–
1.20
A2
0.80
1.00
1.05
b
0.19
–
0.30
e
L
L1
Notes:
NOM
4
0.65 BSC
0.45
0.60
0.75
1.00 REF
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
5
5132AS–TPM–1/07
40ML1 - QFN
A
A1
D
N
A2
A3
1
Pin 1 Indicator
2
3
E
Top View
L
0
Side View
COMMON DIMENSIONS
(Unit of Measure = mm)
D2
SYMBOL
E2
1
2
b
3
6.00 BSC
E
6.00 BSC
3.95
4.10
4.25
E2
3.95
4.10
4.25
A
-
0.85
0.90
A1
0.0
0.01
0.05
A2
-
0.65
0.70
b
NOTE
0.20 REF
0.30
N
e
Bottom View
MAX
D2
L
PIN1 ID
NOM
D
A3
e
Notes:
MIN
0.40
0.50
0.50 BSC
0.18
0.23
0.30
2
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.
3/9/04
R
6
2325 Orchard Parkway
San Jose, CA 95131
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
5132AS–TPM–1/07
AT97SC3203S
Revision History
Doc. Rev.
Date
Comments
5132AS
1/2007
Implemented revision history
Added ‘Summary’ to page 1
Revised summary disclaimer text on page 1
7
5132AS–TPM–1/07
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5132AS–TPM–1/07
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