89C5121-SK1 Atmel, 89C5121-SK1 Datasheet - Page 2

• Manufacturer Part Number: 89C5121-SK1
• Description: KIT SMART CARD FOR AT89C5121
• Manufacturer: Atmel
• Type: Smart Cardr

Specifications of 89C5121-SK1

• Contents: Board
• For Use With/related Products: AT89C5121
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: T89C5121-SK1; T89C5121-SK1

Description
Block Diagram
Figure 1. Block Diagram
2
A/T8xC5121
XTAL1
XTAL2
PSEN
ALE
EA
Prescaler
Clock
:1-16
Xtal
Osc
T8xC5121 is a high performance CMOS ROM/CRAM derivative of the 80C51 CMOS
single chip 8-bit microcontrollers.
T8xC5121 retains the features of the Atmel 80C51 with extended ROM capacity (16
Kbytes), 512 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, the T8xC5121 have, a Multi protocol Smart Card Interface, a dual data
pointer, 2 programmable LED current sources (2-4-10 mA) and a hardware Watchdog.
T89C5121 Flash RAM version and T85C5121 Code RAM version can be loaded by In-
System Programming (ISP) software residing in the on-chip ROM from a low-cost exter-
nal serial EEPROM or from R232 interface.
T8xC5121 have 2 software-selectable modes of reduced activity for further reduction in
power consumption.
Notes:
X2
(4)
1. Alternate function of Port 1
2. Alternate function of Port 3
3. Only for the Code RAM version
4. Only for PLCC52
CPU
(2) (2)
(2) (2)
Timer 0
Timer 1
EUART
BRG
CORE
C51
(2) (2)
256 x8
RAM
INT
Ctrl
(1):
IB-bus
Watchdog
16K x8
ROM
POR
PFD
16K x8
CRAM
6 I/Os
Parallel I/O Ports
(3)
XRAM
8 I/Os
256
x8
(2)
Voltage
Output
Direct
Drive
LED
Reg.
(2)
Alternate
Card
DC/DC
Converter
SCIB
Level
Shifters
4164G–SCR–07/06
(1)
(1)
(2)
(2)
(2)
(1)
(1)
(1)
(1)
CRST1
CCLK1
CPRES
C
CCLK
CRST
V
CIO1
CC4
CC8
CIO
CC