T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 37

• 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

DC/DC Converter
4164G–SCR–07/06
The Smart Card supply voltage (C
It is controlled by several registers:
•
•
•
•
The register described in Section “SCICR Register” controls the CVCC voltage with
bits CVcc0, CVcc1
The register described in Section “SCCON Register”, switches ON/OFF the DC/DC
converter with bit CARDV
After the selection of the card voltage (CVcc[1:0]), the CARV
on the DC\DC converter. The CVccOK bit indicates that the card voltage is within
It is mandatory to switch off the CV
the voltage range.
CC
V
CC
) is generated by the integrated DC/DC converter.
CC
before entering in power-down mode.
A/T8xC5121
CC
bit is used to switch
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