AT83EC5122 Datasheet PDF - ATMEL Corporation

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AT83EC5122
ATMEL Corporation

Part Number AT83EC5122
Description (AT8xx512x) Smart Card Reader ICs
Page 30 Pages


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Features
80C51 Core :
– 6 Clocks per Instruction
– Speed up to 16 MHz
768 Bytes RAM
AT83C5122: 32 Kbytes ROM
AT83C5123: 30 Kbytes ROM
AT85C5122: 32 Kbytes Code RAM and 32 Kbytes ROM
AT89C5122 : 32 Kbytes Flash
AT85EC5122, AT83EC5123, AT83EC5122: Additional 512 Bytes EEPROM (AT24C04)
Multi-protocol Smart Card Interface
Certified According to ISO7816, EMV2000, GIE-CB and WHQM Standards
Asynchronous Protocols T = 0 and T = 1, with Direct and Inverse Modes
Step-up/Down Converter with Programmable Voltage Output: 5V and 3V (60 mA),
1.8V (20 mA)
4 kV ESD Protection (MIL/STD 833 Class 3)
Alternate Card Support with CLK, IO and RST
USB Module with 7 Endpoints Programmable with In or Out Directions and with ISO,
Bulk or Interrupt Transfers
UART with Integrated Baud Rate Generator (BRG)
8 MHz On-chip Oscillator Analog PLL for 96 MHz Synthesis, Possible 48 MHz Clock
Input
Two 16-bit Timer/Counters: T0 and T1
Hardware Watchdog and Power-fail Detector (PFD)
Idle and Power-down Modes
Self Powered USB
Low Power
30 mA Maximum Operating Current (at 32 MHz X1)
100 µA Maximum Power-down Current at 5.4V (without Smart Card and USB)
Voltage Range: 3.6 to 5.5V
For AT8xC5122 version:
Keyboard Interrupt Interface on Port 5 (8 Bits)
Five 8-bit I/O Ports, One 6-bit
SPI Interface (Master Slave)
Packages: VQFP64, PLCC28
Seven LED Outputs with Programmable Current Sources: 2-4-10 mA
For AT8xC5123 version:
Four LED Outputs with Programmable Current Sources: 2-4-10 mA
Two 8-bit I/O Ports, One 6-bit I/O port, One I/O bit (on LQP32 package)
Packages: LQFP32, PLCC28
C51
Microcontroller
with USB and
Smart Card
Reader
Interfaces
AT83C5122
AT83EC5122
AT85C5122
AT85EC5122
AT89C5122
AT83C5123
AT83EC5123
Preliminary
Rev. 4202B–SCR–07/03
1



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Description
AT8xC5122 is a high-performance CMOS derivative of the 80C51 8-bit microcontrollers
optimized for USB keyboard with smart card reader applications.
AT8xC5122 retains the features of the Atmel 80C51 with 32 Kbytes ROM capacity, 768
bytes of internal RAM, a 4-level interrupt system, two 16-bit timer/counters (T0/T1), a full
duplex enhanced UART (EUART) with baud rate generator (BRG) and an on-chip
oscillator.
In addition, AT8xC5122 has a USB 2.0 full-speed function controller with seven End-
points, a multi-protocol smart card interface, a dual data pointer, seven programmable
LED current sources (2-4-10 mA) and a hardware watchdog.
AT8xC5122 Flash RAM version and AT8xC5122 Code RAM version with 32 Kbytes
memory can be loaded by In-System Programming (ISP) software residing in the on-
chip ROM from USB or UART.
AT8xC5122 have 2 software-selectable modes of reduced activity for further reduction
in power consumption.
AT8xC5123 is a low pin count of the AT8xC5122. This version doesnt have the key-
board and the SPI interfaces. The PLCC28 packages for AT8xC5122 and AT8xC5123
have the same pinout. The AT8xC5123 is also proposed in a VQFP32 package.
AT8xC5122 and AT8xC5123 are proposed with a 512 bytes EEPROM (AT24C04) and
respectively named AT8xEC5122 and AT8xEC5123.
2 AT8xC5122/23
4202BSCR07/03



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AT8xC5122 Block Diagram
AT8xC5122/23
XTAL1
XTAL2
PLLF
RST
EA
PSEN
ALE
* see versions
DC/DC
Xtal
Osc
RAM
EUART 256 x 8
BRG
ROM*
32K x8
CRAM*
32K x8
Flash*
32K x8
XRAM
512
x8
KB
Converter
PLL
CPU
C51
CORE
IB-bus
Level
SCIB Shifters
Alternate
card
(1)
External
Memory
and Ports
Timer 0
Timer 1
INT
Ctrl
Watchdog Parallel I/O Ports
POR
8 8 68
USB
PFD
I/Os I/Os I/Os I/Os
LED
Out
SPI
CVCC
CC4
CC8
CIO
CRST
CCLK
CPRES
CIO1
CCLK1
CRST1
VSS
VCC
AVSS
AVCC
DVCC
AT8xC5123 Block Diagram
XTAL1
XTAL2
PLLF
RST
Xtal
Osc
RAM
EUART 256 x 8
BRG
ROM
30K x8
PLL
CPU
C51
CORE
IB-bus
XRAM
512
x8
DC/DC
Converter
Level
SCIB Shifters
CVCC
CC4
CC8
CIO
CRST
CCLK
CPRES
Alternate
card
Timer 0
Timer 1
INT
Ctrl
Watchdog Parallel I/O Ports
POR
PFD
882 1
I/Os I/Os I/Os I/Os
USB
LED
Out
CIO1
CCLK1
CRST1
VSS
VCC
AVSS
AVCC
DVCC
4202BSCR07/03
3



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Pin Description
Figure 1. VQFP64 Pinout (only for AT8xC5122)
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
DVCC 1
P1.2/CPRES 2
P1.1/CC8 3
P5.7/KB7 4
P5.6/KB6 5
P1.5/CRST 6
P5.5/KB5
P5.4/KB4
P1.3/CC4
P5.3/KB3
7
8
9
10
P5.2/KB2 11
P1.4/CCLK 12
P5.1/KB1 13
P5.0/KB0 14
PSEN 15
VSS 16
VQFP64
48 P3.1/TxD
47 P1.6/SS
46 P2.7/A15
45 P3.0/RxD
44 P3.5/T1/CRST1
43 P3.2/INT0/LED0/CIO1
42 P4.0/MISO
41 P3.3/INT1
40 P4.1/MOSI
39 P3.4/T0/LED1
38 P4.2/SCK
37 P4.3/LED4
36 P3.6/WR/LED2
35 P4.4/LED5
34 RST
33 P4.5/LED6
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Figure 2. PLCC28 Pinout
4 3 2 1 28 27 26
DVCC
P1.2/CPRES
P1.1/CC8
P1.5/CRST
P1.3/CC4
P1.4/CCLK
VSS
5 25
6 24
7 23
8 PLCC28 22
9 21
10 20
11 19
12 13 14 15 1617 18
P3.1/TxD
P3.0/RxD
P3.2/INT0/LED0
P3.3/INT1
P3.4/T0/LED1
P3.6/LED2
RST
4 AT8xC5122/23
4202BSCR07/03



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