AT83C5127XXX-PURIM ATMEL [ATMEL Corporation], AT83C5127XXX-PURIM Datasheet - Page 2

• Manufacturer Part Number: AT83C5127XXX-PURIM
• Description: MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
• Manufacturer: ATMEL [ATMEL Corporation]

Product description
Block Diagram
2
X TAL1
X TAL2
PLLF
RS T
AT83C5127
WATCH-DOG
Oscillator
8 MHz
RESET
P O R
PLL
P FD
Regulator
256 x 8
3.3 V
RAM
AT83C5127 product is high-performance CMOS derivatives of the 80C51 8-bit micro-
controllers designed for USB smart card reader applications.
The AT83C5127 is a low pin count of the AT8xC5122 and is proposed in ROM version.
The ROM device is only factory programmable.
256 x 8
16K x 8
RAM
RO M
512 x 8
X RAM
Interface
UART
INTERNAL ADDRESS AND DATA BUS
P O RT
3-BIT
TIMERS
16-BIT
P O RT
8-BIT
Parallel I/O Ports
P O RT
Controller
1-BIT
Interrupt
LED's
Alternate
Card
Converter
Interface
DC/DC
US B
Regulator
3.3V
7519A–SCR–04/05
CP RE S
CRS T
CCLK
CIO
CC4
CC8