AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 88

• Manufacturer Part Number: AT89C5122D-PSTUM
• Description: IC 8051 MCU FLASH 32K 64QFN
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-PSTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFN
• For Use With: AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Figure 45. Card Vcc = 1.8V Initialization Procedure
SCICR.7=Reset=1
SCICR.7=Reset=0
VCARD[1:0] = 01
Mode Regulation
DCCKPS[7]=1
BOOST[1:0]=01
SCCON CardVcc=1
Set Timeout to 3 ms
VCARDOK=1
DC/DC Initialization
successful
Timeout
Expired
DC/DC Initialization
Failure
AT83R5122, AT8xC5122/23
88
4202F–SCR–07/2008