features ! 8051 based mcu manufactured with cmos technology ! enhanced 16-bit arithmetic and 3 times faster than conven- tional 8051 ! single 2.7v to 5v power supply with vpp generated internally ! additional instructions optimized for chip card applications ! three 16-bit timers ! programmable watchdog timer ! two 16-bit data pointers ! five interrupt sources with three levels of priority ! on-chip oscillator and clock circuitry ! clock frequency: 1 to 5 mhz at 5v; 1 to 4 mhz at 3v ! 256 bytes internal ram ! 16k/32k bytes user rom for application program ! 2k/4k/8k/16k/32k bytes eeprom for application program and data ! minimum of 1 million write/erase cycles; 100 years data retention for eeprom ! os program storage and execution in eeprom area enables customized user applications security ! low/high voltages sensors ! low/high frequency sensors and filter ! internal power-on-reset ! 16 bytes security prom hardware protected ! unique chip id for each device ! memory address scrambling ! fast erase of internal ram triggered by security sensors ! encryption of data busses and memories with using one key ! true fips140-2 compiled random number generator for advanced authentication algorithm ! proprietary block cipher based on a digital chaotic function description is23sc44 series 8-bit mcu chips are based on issi?s advanced cmos technology. the fips140-2 compiled random number generator provides a cost-effective solution for advanced authentication. the crypto engine gives customers more security to protect the cos (chip operating system) and applications data. user friendly development tools (emulator) is available to shorten the product time to market for customers. integrated silicon solution, inc. 2231 lawson lane santa clara, ca 95054 tel: 408.588.0800 fax: 408.588.0806 email: sales@issi.com web: www.issi.com is23sc4402/04/08/16/32
issi r egional s ales o ffices headquarters & west coast office santa clara, california phone : 408-588-0800 fax : 408-588-0805 e - mail : sales@issi.com www.issi.com east coast office nashua, nh phone : 603-594-4176 fax : 603-594-4181 e - mail : gpolanec@msn.com central office dallas, tx phone : 972-488-9691 fax : 877-716-5582 e - mail : lzastrow@flash.net europe office devon, england phone : 44-1752-764285 fax : 44-1752-764289 e - mail : glouch@issi.com05 china offices shanghai phone : +86 21 5080 2288 fax : +86 21 5080 2028 e - mail : issish@sh163c.sta.net.cn shenzhen phone : 86755-663-3977 fax : 86755-663-3984 e - mail : issi@public.szptt.net.cn suzhou phone : 86512-725-0384 fax : 86512-725-0536 e - mail : issisz@public1.sz.js.cn beijing phone : 86-10-6824-3301 fax : 86-10-6816-9097 e - mail : issibj@public.bta.net.cn hong kong phone : 852-2319-2211 fax : 852-2319-2004 to order to order integrated silicon solution, inc. 2231 lawson lane santa clara, ca 95054 tel: 408.588.0800 fax: 408.588.0806 email: sales@issi.com web: www.issi.com iso contact pad description c1 vcc 5v power supply c2 rst reset c3 clk serial clock c4 n/c no connect c5 gnd ground c6 n/c no connect c7 i/o serial data i/o c8 n/c no connect is23sc4402/04/08/16/32
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