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SSX35 trusted platform module (tpm) datasheet april 2005 revision 1.6 .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 2 contents 1. general d escription ............................................................... 4 2. product pa ramete rs............................................................... 4 3. main functions ....................................................................... 5 4. pin and signa l overvi ew ....................................................... 6 5. absolute ma ximum ra tings .................................................. 8 6. typical app lication .............................................................. 11 7. package dr awing ................................................................. 12 8. chip mark ............................................................................. 14 .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 3 revision history revision date description rev1.6 april 2005 4.7k resistor is provided on pp pin by liud .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 4 1. general description ? 1 ? fully compatible with tcg v1.2 specification .1 . ? 2 ? sinosun 8-bits cpu core. ? 3 ? embedded 16kb secure data flash memory and 16kb ram. ? 4 ? 128kb program flash memory supporting online update of firmware. ? 5 ? rsa engine supports up to 2048 bits rsa algorithm. ? 6 ? embedded sha-1 algorithm engine. ? 7 ? integrated rng for key generation and encryption transmission. ? 8 ? lpc interface and serial interface in conformance to iso 7816 standard. figure 1-1 SSX35acb structure 2. product parameters ? 1 ? supply voltage: 3.3v 10% ? 2 ? frequency: 33mhz ? 3 ? program space: 128kb flash memory and 64kb rom ? 4 ? data space: 16kb flash memory and 16kb ram .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 5 ? 5 ? work current: < 30ma ? 6 ? idle current: < 0.1ma ? 7 ? speed: rsa 2048 bits signature (decryption): <300ms rsa 2048 bits verification (encryption): <40ms rsa 1024 bits signature (decryption): <120ms rsa 1024 bits verification (encryption): <15ms sha-1(1m bits) computing speed: <258ms 2048 bits rsa key pair generation: <10 seconds ? 8 ? package: tssop28 3. main functions ? 1 ? measure, store and report on the integrity of platform using sha-1 hash function, SSX35 can measure, store and report the platform integrity. ? 2 ? identity verification use aik generated inside the chip to complete digital signature of the data ? 3 ? encrypt and store the sensitive data SSX35 stores the sensitive data in the shielded area of the chip, or it can encrypt the data with storage key and store them in the generic memory on the platform. ? 4 ? authorized access to internal info: access to resources (include keys, sensitive data encrypted) managed by SSX35 must be authorized by SSX35. ? 5 ? encrypted transmission of commands and data while the SSX35 exchanges commands and data with external entity, it not only verifies the user?s id, but also prevents the key data of id verification from being stolen, replayed or attacked .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 6 through the communication line. ? 6 ? provide secure administration mechanism for trusted platform SSX35 can protect the platform from illegal remote access through physical presence. 4. pin and signal overview pinout description as figure4-1and table 4-1 figure 4-1 SSX35acb pinout description 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 gpio gpio dc gnd 3vsb gpio6 pp testi testbi/gpio 3v gnd vbat dc dc lpcpd# serirq lad0 gnd 3v lad1 lframe# lclk lad2 3v gnd lad3 lreset# clkrun#/gpio .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 7 table 4-1 signal pin(s) type description lad[3:0] 26, 23, 20, 17 bi multiplexed command, address and data bus (see lpc interface spec) lpcpd# 28 i power down lclk 21 i 33mhz clock (see lpc interface spec). lframe# 22 i frame indicates start of a new lpc cycle, termination of broken cycle (see lpc interface spec) lreset# 16 i system reset signal (see lpc interface spec) serirq 27 bi serialized irq is used to handle interrupt support (see lpc interface spec) clkrun#/gpio 15 bi same as pci clkrun#. active low. internal pull-down gpio will default to low. pp 7 i,bi physical presence, active high, internal pull-down. used to indicate physical presence to the tpm. dc 3,13,14 i do not connect gpio 1 bi defaults high. (weak internal pull-up) gpio 2 bi defaults high (weak internal pull-up) gpio6 6 bi gpio defaults high (weak internal pull-up) testi 8 i this pin will be pulled low on motherboard. assuming: pull high to enable test mode. pull low to disable test mode and enable gpio on pin 9(testbi) testbi/gpio 9 bi testbi: test port. if testi is pulled low acts as a gpio. gpio will default high(weak internal pull-up) power 3v 10, 19 24 i this is a 3.3 volt dc power. the maximum power for this interface is 250 ma. .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 8 gnd 4, 11, 18, 25 i zero volts. vbat 12 i 3.3v battery input. 3vsb 5 i 3.3 volt standby dc power rail. 5. absolute maximum ratings operating temperature........................???...?.0c to +70c storage temperature (without bias).....?.?..?.-20c to +85c voltage on i/o pins...........................???...-0.1 to vcc +0.3v voltage on vcc with respect to ground.????..............6.0v maximum esd voltage.............................???...?.......2000v *notice: stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification may cause te mporary or permanent failure. exposure to absolute maximum rating conditions for extended periods may affect device reliability. table 5-1 . dc parameters v cc = 3.0 to 3.6v; temperature = 0 to 70c symbol parameter min nom max units vcc supply voltage 3.0 3.3 3.6 v icc operating current at fclk = 33 mhz 25 50 ma ist static current 5 10 ma isl static standby current, reset active 40 100 a ilio input leakage 0.1 3 a vih input high voltage 1.5 3.6 v vil input low voltage -0.5 0.8 v voh output high voltage 0.9 * vcc 0.98 * vcc v vol output low voltage 0.1 * vcc v iolcr output low current 7 ma ci input pin capacitance 6 pf .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 9 note: these parameters guaranteed but not tested. table 5-2 . ac parameters cl = 10pf. vcc = 3.0 to 3.6v; temperature = 0 to 70c symbol parameter min nom max units tval clk to signal valid delay ? lad0-3 2 5 10 ns ton float to active delay 2 4 ns toff active to float delay 28 ns figure 5-1 ac parameters table 5-3 lpc bus signal delay to pciclk symbol parameter min nom max units tsu input setup time to clk 7 ns th input hold time from clk 0 ns figure 5-2 ac parameters .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 10 table 5-4 reset signal character symbol parameter min nom max units notes trst reset active time after power stable 1 ms note 2 trst-clk reset active after clk stable 100 ms note 2 trst-off reset active to output float delay 40 ns note 2 table 5-5 clock signal character symbol parameter min nom max units notes tcyc clk period 29.5 30 31 ns note 3 t low clk low duration 13.4 18 ns note 1, note 3 thigh clk high duration 13.4 18 ns note 1, note 3 figure 5-3 clock signal character note: ? 1 ? all parameters measured with respect to signal crossing vtest = 0.4 * vcc unless otherwise noted. ? 2 ? these parameters guaranteed but not tested. ? 3 ? the minimum parameter must never be violated under any circumstances unless ireset# is asserted. .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 11 6. typical application figure 6-1 28pins typical application .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 12 figure 6-2 20pins connector typical application note: 1. 33mhz lclk and lreset# signals should have 20mil spacing. 2. lad[3:0] should have 5 mil between each other.10 mil for all other signals. 3. for dc pins, do not connect any signal on these pins. 4. gpio_on : the gpio signal on board , for the bios detect pp status from it. 7. package drawing tssop28 ? figure 7-1 ? .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 13 figure 7-1 package drawing 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 .com .com .com .com .com 4 .com u datasheet
SSX35 trusted platform module (tpm) 14 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. 8. chip mark figure 8-1 SSX35acb chip mark SSX35acb is our chip name and tpm0513 is our chip?s s/n number: 1 SSX35 is fully compatible with the commercial encryption lows and regulations in china and tcg standard. SSX35acb sc000001 tpm 0513 .com .com .com .com 4 .com u datasheet

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