AT83C5122_08 ATMEL [ATMEL Corporation], AT83C5122_08 Datasheet - Page 3
AT83C5122_08
Manufacturer Part Number
AT83C5122_08
Description
C51 Microcontroller with USB and Smart Card Reader Interfaces
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT83C5122_08.pdf
(208 pages)
- Current page: 3 of 208
- Download datasheet (3Mb)
Product Description
4202F–SCR–07/2008
Table 1. Product versions
Features
Packages
Program memory
Internal Data E2PROM
Embedded bootloader
Features
VQFP64,QFN64
packages
packages
VQFP32,
PLCC68,
QFN32
AT83C5122
AT83R5122
32KB ROM
Die Form
VQFP64
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 referenced AT83R5122 is only factory programmable.
- CRAM version without internal data E2PROM. The CRAM device implements a vola-
tile 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 pro-
gram memory access mode is disabled.
QFN64
No
No
All features are available
AT85C5122
32KB CRAM
Die Form
PLCC68
VQFP64
Yes
No
32KB E2PROM
AT89C5122
AT83R5122, AT8xC5122/23
VQFP64
QFN64
Yes
No
Program Memory
AT89C5122DS
32KB E2PROM
except External
All features are
available
VQFP64
QFN64
Access
Yes
No
to 4 LED Outputs with
- Keyboard Interface
- Only 12 I/O with up
Reduced features :
- Master/Slave SPI
- External Program
Memory Access
Programmable
Features not
AT83C5123
30KB ROM
available :
Die Form
Interface
VQFP32
Current
QFN32
No
No
3
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