AT83C5122 Datasheet, PDF (5/213 Pages) ATMEL Corporation – MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES

AT8xC5122 Block Diagram
AT8xC5122/23
3.3 V
Regulator
XTAL1
XTAL2
PLLF
RST
8 MHz
Oscillator
PLL
WATCH-DOG
POR
PFD
RESET
256 x 8
RAM
256 x 8
RAM
512 x 8
XRAM
UART
Interf ace
16-BIT
TIMERS
Interrupt
Controller
Alternate
Card
DC/DC
Conv erter
INTERNALADDRESSANDDATABUS
32K x 8
ROM (1)
32K x 8
CRAM (1)
32K x 8
E2PROM(1)
512 x 8
E2PROM(1)
SPI
Interf ace
ExternalMemory
Controller
USB
Interf ace
3.3V
Regulator
CPRES
CRST
CCLK
CIO
CC4
CC8
8-BIT
PORT
3-BIT
PORT
8-BIT
PORT
ParallelI/OPorts
8-BIT
PORT
6-BIT
PORT
8-BIT
PORT
LED's
KBD
Interf ace
Note 1 : the implementation of these f eatures depends on product v ersions
AT83C5123 Block Diagram
3.3 V
Regulator
XTAL1
XTAL2
PLLF
RST
8 MHz
Oscillator
PLL
WATCH-DOG
POR
PFD
RESET
256 x 8
RAM
256 x 8
RAM
512 x 8
XRAM
UART
Interf ace
16-BIT
TIMERS
Interrupt
Controller
Alternate
Card
DC/DC
Conv erter
INTERNALADDRESSANDDATABUS
30K x 8
ROM
512 x 8
E2PROM(1)
USB
Interf ace
3.3V
Regulator
3-BIT
PORT
ParallelI/OPorts
8-BIT
PORT
1-BIT
PORT
LED's
Note 1 : the implementation of these f eatures depends on product v ersions
CPRES
CRST
CCLK
CIO
CC4
CC8
5
4202D–SCR–06/05