7519A–SCR–04/05

1

Features

– 80C51 core with 6 clocks per instruction

– 8 MHz On-Chip Oscillator

– PLL for generating 96 MHz clock to supply CPU core, USB and Smart Card Interfaces

– Programmable CPU clock from 500 kHz / X1 to 48 MHz / X1

– Power On Reset (POR) feature avoiding an external reset capacitor

– Power Fail Detector (PFD)

– Watch-Dog Timer

– 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: 4.5V - 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

– up to 7 interrupt sources

– up to 4 Level Priority

– Internal Program memory: up to 16 Kbytes of ROM

– Internal Data Memory : 768 bytes including 256 bytes of data and 512 bytes of XRAM

– 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

– 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-30mA, 3V-50mA and 5V-60mA

– Current overload protection

– 6 kV ESD (MIL/STD 833 Class 3) protection on whole Smart Card Interface

– Up to four LED outputs with 3 level programmable current source: 2, 4 and 10 mA

– Two General Purpose I/O programmable as external interrupts

– VQFP32, QFN32, Die

C51

Microcontroller

with USB and

Smart Card

Reader

Interfaces

AT83C5127

Summary

For detailed functional description,

please refer to the AT8xC5122/23

datasheet.