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AT89C5122

AT89C5122 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

AT89C5122 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.

AT89C5122 订购型号

Standard Part Number	Lead free/ RoHS Part Number	Memory Size (bytes)	Supply Voltage (V)	Temperature Range	Max Frequency (MHz)	Package	Packing
AT89C5122D-RDTIM	AT85C5122D-RDTUM	32K CRAM	3.0 - 5.5	Industrial	48 MHz / X1	VQFP64	Tray
AT89C5122D-RDRIM	AT85C5122D-RDRUM	32K CRAM	3.0 - 5.5	Industrial	48 MHz / X1	VQFP64	Tape Reel
AT89C5122D-SISIM	AT85C5122D-SISUM	32K CRAM	3.0 - 5.5	Industrial	48 MHz / X1	PLCC28	Tray
AT89C5122D-SIRIM	AT85C5122D-SIRUM	32K CRAM	3.0 - 5.5	Industrial	48 MHz / X1	PLCC28	Tape Reel

AT89C5122 应用技术支持与电子电路设计开发资源下载

1. AT89C5122 数据资料 DataSheet 下载. PDF
2. AT89C5122 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