1.
Features
• Full Trusted Computing Group (TCG) Trusted Platform Module (TPM) Version 1.2 Compatibility • Compliant with TCG PC Client Specific TPM Interface Specification Version 1.2 • Single-chip Turnkey Solution • Hardware Asymmetric Crypto Engine • 2048-bit RSA® Sign in 200ms • AVR® RISC Microprocessor • Internal EEPROM Storage for RSA Keys • 33MHz LPC (Low Pin Count) Bus for Easy PC 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 Supply Voltage • 28-lead Thin TSSOP, Wide TSSOP or 40-lead QFN Packages • Offered in both Commercial (0 to 70°C) and Industrial (-40 to +85°C) Temperature Ranges
Trusted Platform Module
Atmel AT97SC3204 LPC Interface Summary
* See the full data sheet for detailed design information
2.
Description
The Atmel® AT97SC3204 is a fully integrated security module designed to be integrated into personal computers and other 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 200ms and a 1024-bit RSA signature in 40ms. Performance of the SHA-1 accelerator is 20µs per 64-byte block. The chip communicates with the PC through the LPC interface. The TPM supports SIRQ (for interrupts) and CLKRUN to permit clock stopping for power savings in mobile computers.
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Note: This is a summary document. A complete document is available under NDA. For more information, please contact your local Atmel sales office.
Table 1-1. Pin Name VCC SB3V GND LRESET# LAD0 LAD1 LAD2 LAD3 LCLK LFRAME# CLKRUN# LPCPD# SERIQ GPIO6 TestI TestBI ATest NC NBO
Pin Configurations
Function 3.3V Supply Voltage Standby 3.3V Supply Voltage Ground PCI Reset Input Active Low LPC Command, Address, Data Line Input/Output LPC Command, Address, Data Line Input/Output LPC Command, Address, Data Line Input/Output LPC Command, Address, Data Line Input/Output 33MHz PCI Clock Input LPC FRAME Input PCI Clock Run Input/Output LPC Power Down Input Serialized Interrupt Request Input/Output General Purpose Input/Output Test Input (disabled) Test Input (disabled) Atmel Test Pin No Connect Not Bounded out
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Atmel AT24C256C
Figure 2-1. Pinout Diagrams
28-pin Thin TSSOP 4.4 mm x 9.7 mm Body 0.65 mm Pitch 28-pin TSSOP 6.1 mm x 9.7 mm Body 0.65 mm Pitch
40 ATest 39 ATest
40-pin QFN 6.0 mm x 6.0 mm Body 0.50 mm Pitch
38 LPCPD# 37 SERIRQ
36 NBO
35 NBO
34 NBO
33 NBO
32 NBO CLKRUN# 19
ATest ATest ATest GND SB3V GPIO6 NC TestI TestBI
1 2 3 4 5 6 7 8 9
28 LPCPD# 27 SERIRQ 26 LAD0 25 GND 24 VCC 23 LAD1 22 LFRAME# 21 LCLK 20 LAD2 19 VCC 18 GND 17 LAD3 16 LRESET# 15 CLKRUN#
ATest GND SB3V GPIO6 NC TestI TestBI VCC GND
1 2 3 4 5 6 7 8 9
NBO 11
NBO 12
NBO 13
NBO 14
NBO 15
NBO 16
NBO 17
NBO 18
NBO 12 NBO 13 NBO 14
LRESET# 20
VCC 10 GND 11
NBO 10
31 NBO
30 LAD0 29 GND 28 VCC 27 LAD1 26 LFRAME# 25 LCLK 24 LAD2 23 VCC 22 GND 21 LAD3
3
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Figure 2-2.
Atmel AT97SC3204 Block Diagram
ROM Program
EEPROM Program
33MHz LPC Interface
AVR 8-bit RISC CPU
SRAM
GPIO6
GPIO RNG
EEPROM Data
CRYPTO Engine Timer Physical Security Circuitry
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. The TPM is offered to OEM and ODM manufacturers as a turnkey solution, including the firmware integrated on the chip. In addition, Atmel provides the necessary device driver software for integration into certain operating systems, along with BIOS drivers. Atmel will also provide manufacturing support software for use by OEMs and ODMs during initialization and verification of the TPM during board assembly. Full documentation for TCG primitives can be found in the TCG TPM Main Specification, Parts 1 to 3, on the TCG Web site located at https://www.trustedcomputinggroup.org. TPM features specific to PC Client platforms are specified in the “TCG PC Client Specific TPM Interface Specification, Version 1.2”, also available on the TCG web site. Implementation guidance for 32-bit PC platforms is outlined in the “TCG PC Client Specific Implementation Specification for Conventional BIOS for TCG Version 1.2”, also available on the TCG web site.
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Atmel AT24C256C 3. Ordering Information
Table 1-2.
Atmel AT24C256C Ordering Information
Package 28A2 (28-pin Thin TSSOP) 28A3 (28-pin TSSOP) 40ML1 (40-pin QFN) (2) Lead-free, RoHS Lead-free, RoHS Lead-free, RoHS Operating Range Commercial (0°C to 70°C) Industrial (-40°C to 85°C) Commercial (0°C to 70°C) Industrial (-40°C to 85°C) Commercial (0°C to 70°C) Industrial (-40°C to 85°C)
(1)
Atmel Ordering Code AT97SC3204
AT97SC3204(1) AT97SC3204(1) Notes:
1. Please see the Atmel AT97SC3204 datasheet addendum for the complete catalog number ordering code
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4.
Package Drawing
28A2 – Thin TSSOP
b
L L1 E E1
e
A
D
A2
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX NOTE
1.
2.
3.
4.
Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusions and gate burrs shall not exceed .15mm (.006 in) per side. Dimension "E1" does not include inter-lead flash or protrusions. Inter-lead flash and protrusions shall not exceed .25mm (.010 in) per side. 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. Dimension 'D' and 'E1' to be determined at Datum Plane H.
D E E1 A A2 b e L L1
9.60 4.30 0.80 0.19
9.70 6.40 BSC 4.40 1.00 0.65 BSC
9.80 4.50 1.20 1.05 0.30
1,4 2,4
3
0.45
0.60 1.00 REF
0.75
This drawing is for general information only. Please refer to JEDEC Drawing MO-153, Variation AE for additional information. TITLE 28A2, 28-lead, 4.4x9.7 mm Body, 0.65 pitch, Thin Shrink Small Outline Package (TSSOP) GPC TFL
6/17/08 DRAWING NO. 28A2 REV. B
Package Drawing Contact: packagedrawings@atmel.com
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Atmel AT24C256C
28A3 – TSSOP
b
L L1 E E1
e
Top View
End View
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL D MIN 9.60 NOM 9.70 8.10 BSC 6.00
–
MAX 9.80
NOTE 2, 5
A
D
A2
E E1 A A2
6.10
–
6.20 1.20 1.05 0.30
3, 5
0.80 0.19
1.00
–
Side View
b e L L1
4
0.65 BSC 0.45 0.60 1.00 REF 0.75
Note: 1. 2. 3. 4.
5.
This drawing is for general information only. Please refer to JEDEC Drawing MO-153, Variation DB for additional information. 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. 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. 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. Dimension D and E1 to be determined at Datum Plane H. 1/8/02 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
R
7
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40ML1 – QFN
D N A2 A3 1 2 3 E
Pin 1 Indicator
A A1
Top View
L 0
Side View
D2
SYMBOL D E
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
3 2 1 N b
D2 E2 A A1 A2
e PIN1 ID
A3 L e b
Bottom View
Note: 1. 2.
This drawing is for general information only. Refer to JEDEC Drawing MO-220, Variation WJJD-2, for proper dimensions, tolerances, datums, etc. 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. 9/27/07 2325 Orchard Parkway San Jose, CA 95131
R
TITLE 40ML1, , 40-lead 6.0 x 6.0 mm Body, 0.50 mm Pitch, Molded Quad Flat No Lead Package (QFN) Punched
DRAWING NO. 40ML1
REV. C
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Atmel AT24C256C 5. Revision History
Doc. Rev. 5294BS 5294AS Date 10/2010 01/2008 Comments Added Industrial Grade support detail Initial document release
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Product Contact
Product Line
pcsecurity@atmel.com
Sales Contact
www.atmel.com/contacts
Literature Requests
www.atmel.com/literature
Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: (+1)(408) 441-0311 Fax: (+1)(408) 487-2600 www.atmel.com
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