Rainbow Electronics AT90SCR050 User Manual

General Features

• High Performance, Lo w 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 T e mpe r ature

– 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