T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 112

• Manufacturer Part Number: T89C5121-ICUIL
• Description: IC 8051 MCU W/SMART CARD 24SSOP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of T89C5121-ICUIL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SmartCard, UART/USART
• Peripherals: LED, POR, WDT
• Number Of I /o: 14
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: Flash RAM
• Eeprom Size: 16K x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 5.4 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: Q1468934; T89C5121-ICSIL; T89C5121-ICSIL

Table of
Contents
i
A/T8xC5121
Features ................................................................................................. 1
Description ............................................................................................ 2
Block Diagram ...................................................................................... 2
Pin Description ..................................................................................... 3
SFR Mapping ....................................................................................... 12
PowerMonitor ...................................................................................... 14
Power Monitoring and Clock Management ...................................... 16
Clock Management............................................................................. 22
DC/DC Clock ....................................................................................... 27
Smart Card Interface Block (SCIB) ................................................... 29
Interrupt System ................................................................................. 47
LED Ports Configuration .................................................................... 57
Dual Data Pointer ................................................................................ 58
Signals ...................................................................................................................5
Port Structure Description....................................................................................10
Description.......................................................................................................... 14
PowerMonitor Diagram ....................................................................................... 14
Idle Mode ............................................................................................................ 16
Power-down Mode.............................................................................................. 16
Functional Block Diagram................................................................................... 22
X2 Feature ........................................................................................................... 23
Clock Prescaler.................................................................................................... 24
Clock Control Registers ...................................................................................... 24
Clock Control Register........................................................................................ 27
Clock Prescaler................................................................................................... 27
Introduction ......................................................................................................... 29
Main Features..................................................................................................... 29
Block Diagram .....................................................................................................30
Functional Description ........................................................................................ 30
Other Features.....................................................................................................35
DC/DC Converter.................................................................................................37
Registers Description...........................................................................................38
INT1 Interrupt Vector .......................................................................................... 48
Registers Definition............................................................................................. 57
4164G–SCR–07/06