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AT85EC5122

AT85EC5122 特性

• Clock Controller
  80C51 core with 6 clocks per instruction
  8 MHz On-Chip Oscillator
  PLL for generating clock to supply CPU core, USB and Smart Card Interfaces
  Programmable CPU clock from 500 KHz / X1 to 48 MHz / X1
• Reset Controller
  Power On Reset (POR) feature avoiding an external reset capacitor
  Power Fail Detector (PFD)
  Watch-Dog Timer
• Power Management
  Two power saving modes : Idle and Power Down
  Four Power Down Wake-up Sources : Smart Card Detection, Keyboard Interrupt, USB
  Resume, External Interrupt
  Input Voltage Range : 3.0V - 5.5V
  Core’s Power Consumption (Without Smart Card and USB) :
  30 mA Maximum Operating Current @ 48 MHz / X1
  200 μA Maximum Power-down Current @ 5.5V
• Interrupt Controller
  up to 9 interrupt sources
  up to 4 Level Priority
• Memory Controller
  Internal Program memory :
  •up to 32KB of Flash or CRAM or ROM for AT8xC5122
  •up to 30KB of ROM for AT83C5123
  Internal Data Memory : 768 bytes including 256 bytes of data and 512 bytes of XRAM
  Optional : internal data E2PROM 512 bytes
• Two 16-bit Timer/Counters
• USB 2.0 Full Speed Interface
  48 MHz DPLL
  On-Chip 3.3V USB voltage regulator and transceivers
  Software detach feature
  7 endpoints programmable with In or out directions and ISO, Bulk or Interrupt Transfers :
  •Endpoint 0: 32 Bytes Bidirectionnal FIFO for Control transfers
  •Endpoint 1,2,3: 8 bytes FIFO
  •Endpoint 4,5: 64 Bytes FIFO
  •Endpoint 6: 2*64 bytes FIFO with Pin-Pong feature
• ISO 7816 UART Interface Fully Compliant with EMV, GIE-CB and WHQL Standards
  Programmable ISO clock from 1 MHz to 4.8 MHz
  Card insertion/removal detection with automatic deactivation sequence
  Programmable Baud Rate Generator from 372 to 11.625 clock pulses
  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
  Internal Step Up/Down Converter with Programmable Voltage Output:
  •VCC = 4.0V to 5.5V, 1.8V-30 mA, 3V-60 mA and 5V-60 mA
  •VCC = 3.0V, 1.8V-30 mA, 3V-30 mA and 5V-30 mA
  Current overload protection
  6 kV ESD (MIL/STD 833 Class 3) protection on whole Smart Card Interface
• Alternate Smart Card Interface with CLK, IO and RST
• UART Interface with Integrated Baud Rate Generator (BRG)
• Keyboard interface with up to 20x8 matrix management capability
• Master/Slave SPI Interface
• Four 8 bit Ports, one 6 bit port, one 3-bit port
  Up to Seven LED outputs with 3 level programmable current source : 2, 4 and 10 mA
  Two General Purpose I/O programmable as external interrupts
  Up to 8 input lines programmable as interrupts
  Up to 30 output lines

AT85EC5122 概述

AT8xC5122/23 products are high-performance CMOS derivatives of the 80C51 8-bit
microcontrollers designed for USB smart card reader applications.
The AT8xC5122 is proposed in four versions :
- ROM version with or without internal data E2PROM. The ROM device is only factory
programmable.
- CRAM version without internal data E2PROM. The CRAM device implements a volatile
program memory which is programmed by means of an embedded ROMed
bootloader which transfers the code from a remote software programming tool called
FLIP through UART or USB interfaces.
- Flash version without internal data E2PROM. At power-up, the program located in the
flash memory is transferred into the CRAM then executed.
The AT83C5123 is a low pin count of the AT8xC5122 and is proposed in ROM version
with or without internal data E2PROM. The ROM device is only factory programmable.
The AT8xC5122DS is a secure version of the AT8xC5122 on which the external program
memory access mode is disabled.

AT85EC5122 应用技术支持与电子电路设计开发资源下载

1. AT85EC5122 数据资料 DataSheet 下载. PDF
2. AT85EC5122 数据手册DataSheet 下载. PDF
3. 《新闻报道》Atmel 新的單周期8051核心帶來顯著的性能提高與低能耗