AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 3
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
AT83EC5123
Manufacturer Part Number
AT83EC5123
Description
(AT8xx512x) Smart Card Reader ICs
Manufacturer
ATMEL Corporation
Datasheet
1.AT83EC5123.pdf
(187 pages)
- Current page: 3 of 187
- Download datasheet (3Mb)
AT8xC5122 Block Diagram
AT8xC5123 Block Diagram
4202B–SCR–07/03
XTAL1
XTAL2
XTAL1
XTAL2
PSEN
PLLF
PLLF
RST
ALE
RST
EA
and Ports
External
Memory
PLL
PLL
Xtal
Xtal
Osc
Osc
(1)
CPU
CPU
Timer 0
Timer 1
Timer 0
Timer 1
EUART
EUART
BRG
BRG
CORE
CORE
C51
C51
256 x 8
256 x 8
RAM
RAM
Ctrl
Ctrl
INT
INT
IB-bus
IB-bus
Watchdog
Watchdog
32K x8
ROM*
POR
POR
PFD
PFD
30K x8
ROM
* see versions
CRAM*
32K x8
I/Os
I/Os
8
8
Parallel I/O Ports
Parallel I/O Ports
I/Os
I/Os
8
8
32K x8
Flash*
I/Os
I/Os
6
2
I/Os
I/Os
8
1
XRAM
512
x 8
XRAM
USB
USB
512
x 8
KB
LED
LED
Out
Out
SCIB
SCIB
DC/DC
Converter
DC/DC
Converter
Alternate
Alternate
card
card
AT8xC5122/23
Shifters
Shifters
Level
Level
SPI
VSS
DVCC
VSS
DVCC
CVCC
CC4
CC8
CIO
CRST
CCLK
CPRES
CIO1
CCLK1
CRST1
VCC
AVSS
AVCC
CVCC
CC4
CC8
CIO
CRST
CCLK
CPRES
CIO1
CCLK1
CRST1
VCC
AVSS
AVCC
3
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