general description deepcover ? embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible. the deepcover secure microcontroller (max32550) pro - vides an interoperable, secure, and cost-effective solution to build new generations of trusted devices such as mobile chip and pin pads. the max32550 is based on a cortex m3 processor with 1mb of embedded flash, 256kb of system ram, 8kb of battery-backed aes self-encrypted nvsram. it includes all the essential functions of mobile pos terminal including a cryptographic engine, a true random number generator, battery-backed rtc, environ - mental and tamper detection circuitry, a magnetic stripe reader, a smart card controller with embedded transceiver to directly support 1.8v, 3.3v, and 5v cards, and an inte - grated secure keypad controller. it also provides a seam - less interface to tft displays and includes a vast array of peripherals, spis, uarts, dma, adc, and dac that add flexibility to control and differentiate the system design. applications pci mobile payment terminals (mpos) atm keyboards emv card reader beneits and features arm? cortex? m3 processor core allows for easy integration into applications ? 108mhz core operating frequency through pll ? 1mb dual-bank flash memory with cache ? 256kb system sram ? 8kb aes self-encrypted nvsram security features facilitate system-level protection ? secure boot loader with public key authentication ? aes, des and sha hardware accelerators ? modulo arithmetic hardware accelerator (maa) supporting rsa, dsa, and ecdsa ? 8-line secure keypad controller ? hardware true random-number generator ? die shield with dynamic fault detection ? 6 external tamper sensors with independent random dynamic patterns ? 256-bit flip-flop-based battery-backup aes key storage ? temperature and voltage tamper monitor ? real-time clock integrated peripherals reduce external component count ? triple-track magnetic stripe head interface ? one iso 7816 smart card interface with integrated transceiver (1.8v, 3v, and 5v) ? usb 2.0 device with internal transceiver and dedicated pll ? 3 spi ports, 2 uart ports, and 1 i 2 c controller ? 6 timers, 4 with pwm capability ? up to 70 general-purpose i/o pins ? 2-channel, 10-bit adc and 1-channel, 8-bit dac ? color/monochrome lcd tft controller ? 4-channel dma controller power management optimizes battery life and reduces active power consumption ? single 3.3v supply operation* ? integrated battery-backup switch ? clock gating function ? low-current battery-backup operation *5v smart card support requires external 5.0v supply. deepcover is a registered trademark of maxim integrated products, inc. arm and cortex are registered trademarks and arm is a service mark of arm limited. 19-7145; rev 5; 1/16 ahb rom 64kb sram 256kb nvsram 8kb* trng usb device flash 1mb apb osc/pll (2) gpio timers (6) uart (2) spi (3) i 2 c otp rtc* crypto smart card keypad adc dma security monitor* watchdog apb bridge apb peripherals ahb peripherals arm cortex m3 mpu nvic i d max32550 s mono lcd dac msr code space ahb tft * battery-backed blocks i i i i max32550 deepcover secure cortex-m3 flash microcontroller functional diagram evaluation kit available abridged data sheet downloaded from: http:///
additional documentation designers must have the following documents to fully use all the features of this device. this data sheet contains pin descriptions, feature overviews, and electrical specifi- cations. errata sheets contain deviations from published specifications. user guides contain detailed descriptions of device features and peripherals from a programming perspective. this max32550 data sheet, which contains electrical/ timing speciications, package information, and pin descriptions. the max32550 revision-speciic errata sheet. the max32550 user guide, which contains detailed information and programming guidelines for core fea- tures and peripherals. development and technical support visit https://support.maximintegrated.com/micro for technical support. note to readers: this document is an abridged version of the full data sheet. to request the full data sheet, go to www.maximintegrated.com/max32550 and click on request full data sheet . + denotes a lead(pb)-free/rohs-compliant package. part pin-package ice max32550-lns+ 121 ctbga (8mm x 8mm, 0.65mm pitch) no max32550-lnj+ 121 ctbga (8mm x 8mm, 0.65mm pitch) yes max32550-lbs+ 121 ctbga (8mm x 8mm, 0.65mm pitch) no max32550-lbj+ 121 ctbga (8mm x 8mm, 0.65mm pitch) yes package type package code outline no. land pattern no. 121 ctbga x12188+2c 21-0680 90-0451 max32550 deepcover secure cortex-m3 flash microcontroller www.maximintegrated.com maxim integrated 2 package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. ordering information abridged data sheet downloaded from: http:///
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