5132as?tpm?1/07 features ? full trusted computing group (tcg) trus ted platform module (tpm) version 1.2 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 generato r (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 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 prop rietary mechanism in less than 1 msec. table 1. pin configurations pin name description v cc 3.3v (10%) supply voltage sb3v standby 3.3v ( 10%) supply voltage v bat 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) te s t b i te s t i n p u t ( d i s a b l e d ) nc no connect nbo not bonded out trusted platform module AT97SC3203S smbus two-wire interface summary note: this is a summary docu ment. a complete document is available through your local atmel sales office.
2 AT97SC3203S 5132as?tpm?1/07 figure 1. pin configurations figure 2. AT97SC3203S block diagram 1 2 3 4 5 6 7 8 9 10 nc gnd sb3v gpio6 nc testi testbi v cc gnd v bat 30 29 28 27 26 25 24 23 22 21 nc gnd v cc nc nc avrcl k nc v cc gnd nc 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 nbo xtali/32k in xtalo nbo nbo nbo nbo nbo nc reset# smbclk smbdat nc nc nbo nbo nbo nbo nbo nbo 40-pin qfn 6.0 mm x 6.0 mm body 0.50 mm pitch 1 2 3 4 5 6 7 8 9 10 11 12 13 14 smbdat smbclk nc gnd sb3v gpio6 nc testi testbi v cc gnd v bat xtall/32k in xtalo 28 27 26 25 24 23 22 21 20 19 18 17 16 15 nc nc nc gnd v cc nc nc avrclk nc v cc gnd nc reset# nc 28-pin tssop 6.1 mm x 9.7 mm body 0.65 mm pitch 33 mhz avr clock input avr 8-bit risc cpu physical security circuitry s mbdat smbus interface gpio rtc (optional) v bat 32.768 khz rng timer rom program eeprom program eeprom data crypto engine sram gpio6 s mbclk
3 AT97SC3203S 5132as?tpm?1/07 description (continued) communication to and from the tpm occurs through a modified 100-khz smbus two- wire 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
4 AT97SC3203S 5132as?tpm?1/07 table 2. ordering information 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)
5 AT97SC3203S 5132as?tpm?1/07 package drawing 28a3 ? tssop 2325 orchard parkway san jose, ca 95131 title drawing no. r rev. 1/8/02 common dimensions (unit of measure = mm) symbol min nom max note d 9.60 9.70 9.80 2, 5 e 8.10 bsc e1 6.00 6.10 6.20 3, 5 a ?? 1.20 a2 0.80 1.00 1.05 b 0.19 ? 0.30 4 e 0.65 bsc l 0.45 0.60 0.75 l1 1.00 ref 28a3 , 28-lead, 6.1 x 9.7 mm body, 0.65 pitch, thin shrink small outline package (tssop) notes: 1. this drawing is for general information only. please refer to jedec drawing mo-153, variation db for additional informa tion. 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 (0.0 10 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. 28a3 a l1 a l d a2 e e1 e b top view side view end view
6 AT97SC3203S 5132as?tpm?1/07 40ml1 - qfn 2325 orchard parkway san jose, ca 95131 title drawing no. r rev. a1 a3 a a2 0 side view 40ml1 , 40-lead 6.0 x 6.0 mm body, 0.50 mm pitch, molded quad flat no lead package (mlf2) a 40ml1 3/9/04 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. common dimensions (unit of measure = mm) symbol min nom max note d 6.00 bsc e 6.00 bsc d2 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 a3 0.20 ref l 0.30 0.40 0.50 e 0.50 bsc b 0.18 0.23 0.30 2 d e top view n 2 3 1 pin 1 indicator l pin1 id b n d2 3 2 1 e bottom view e2
7 AT97SC3203S 5132as?tpm?1/07 revision history doc. rev. date comments 5132as 1/2007 implemented revision history added ?summary? to page 1 revised summary disclaimer text on page 1
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