General Features • High Performance, Low Power AVR® 8-Bit Microcontroller • Advanced RISC Architecture • • • • • • – 132 Powerful Instructions - Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Up to 16MIPS Throughput at 16Mhz – On-chip 2-cycle Multiplier Memories – 16K Bytes of ROM Program Memory – 768 Bytes Internal SRAM ISO7816 UART Interface Fully compliant with EMV, GIE-CB and WHQL Standards – Programmable ISO clock from 1 Mhz to 12 Mhz – Card insertion/removal detection with automatic deactivation sequence – Programmable Baud Rate Generator from 372 to 3 clock cycles – Synchronous/Asynchronous Protocols T=0 and T=1 with Direct or Inverse Convention – Automatic character repetition on parity errors – 32 Bit Waiting Time Counter – 16 Bit Guard Time Counter/Block Guard Time Counter – Internal Step Up/Down Converter with Programmable Voltage Output if DC/DC embedded: • Class A: 5V +/-8% at 60mA, Vcc>2.85 (50mA if Vcc >2.7) • Class B: 3V +/-8% at 60mA, Vcc>2.85 (50mA if Vcc >2.7) • Class C: 1.8V +/-8% at 35mA – 4 kV ESD (MIL/STD 833 Class 3) protection on whole Smart Card Interface USB 2.0 Full-speed Device Module – Complies fully with: • Universal Serial Bus Specification Rev 2.0 – Supports data transfer rates up to 12 Mbit/s – Endpoint 0 for Control Transfers : up to 64-bytes – 4 Programmable Endpoints with IN or OUT Directions and with Bulk, Interrupt or Isochronous Transfers – Suspend/Resume Interrupts, and Remote Wake-up Support – Power-on Reset and USB Bus Reset – 48 Mhz clock for Full-speed Bus Operation – USB Bus Disconnection on Microcontroller Request Peripheral Features – One 8-bit Timer/Counter with Separate Prescaler and Compare Mode – One 16-bit Timer/Counter with Compare Mode – Hardware Watchdog Communication Peripherals – USART interface (up to 2Mbps) – USART in SPI mode Special Microcontroller Feature – Power-on Reset and Brown-out Detection – External and Internal Interrupt Sources – Three Sleep Modes: Idle, Power-down and Standby 8-bit Microcontroller for Smart Card Readers AT90SCR050 Datasheet Summary TPG0450X–SMS–09Nov09 • Up to 4 x I/O Programmable Pins • One LED Output with Programmable Current Sources: 2 or 4 mA • Operating Temperature – Industrial (-40°C to +85°C) • Core Operating Voltages – 2.4 - 5.5V • DC/DC Operating Voltages – 2.7 - 5.5V • Maximum Frequency – 8MHz Clock Input 2 AT90SCR050 TPG0450X–SMS–09Nov09 AT90SCR050 1. Block Diagram USB device Standard ISO7816 Supply Monitor LED port PORT C PC2, LED0 Vc c D+ D- Smart Card Interface UC ap Block Diagram CP CCRES L CR K ST CI O CC 4 CC 8 Figure 1-1. USB DMA Watchdog PORT D Pin Change IT PD1, TXD, PCINT17 PD0, RXD, PCINT16 Interrupt Controller cpu USART (in SPI mode) PORT B Power Management Pin Change IT ROM 16 KB SRAM 768 Bytes PB0, T0, XCK, PCINT8 USB 8bit T/C 0 16bit T/C 1 Clock Management XT AL 1 XT AL 2 Timers/Counters 48MHz 1 TPG0450X–SMS–09Nov09 Headquarters International Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Asia Unit 01-05 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon Hong Kong Tel: (852) 2245-6100 Fax: (852) 2722-1369 Atmel Europe Le Krebs 8, Rue Jean-Pierre Timbaud BP 309 78054 Saint-Quentin-enYvelines Cedex France Tel: (33) 1-30-60-70-00 Fax: (33) 1-30-60-71-11 Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Technical Support [email protected] Sales Contact www.atmel.com/contacts Product Contact Web Site www.atmel.com Literature Requests www.atmel.com/literature Disclaimer: The information in this document is provided in connection with Atmel products. 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