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Part Number: AT89C5122DS
Description: AT8xC5122/23 products are high-performance CMOS derivatives of the 80C51 8-bit microcontrollers designed for USB smart ...
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AT89C5122DS
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DataSheet
General Description
AT89C5122DS General Description
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.
AT89C5122DS Features
• 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 : 3.6V - 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
•Endpoints 1,2,3: 8 bytes FIFO
•Endpoints 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 :
•1.8V-30 mA, 3V-60 mA and 5V-60 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
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 : 3.6V - 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
•Endpoints 1,2,3: 8 bytes FIFO
•Endpoints 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 :
•1.8V-30 mA, 3V-60 mA and 5V-60 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
AT89C5122DS Connection Diagram
AT89C5122DS
PDF/DataSheet Download
- Datasheet: AT89C5122DS
- File Size: 3165429 KB
- Manufacturer: ATMEL
- Click here to Download
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