AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 92
AT89C5122D-PSTUM
Manufacturer Part Number
AT89C5122D-PSTUM
Description
IC 8051 MCU FLASH 32K 64QFN
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
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
-
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DC/DC Converter register
Table 61. DC/DC Converter Control Register - DCCKPS (S:BFh)
Reset Value = 0000 0000b
92
Bit Number
MODE
5 - 4
3 - 0
7
7
6
AT83R5122, AT8xC5122/23
Bit Mnemonic
DCCKPS[3:0]
OVFADJ
BOOST[1:0]
OVFADJ
MODE
6
Description
Regulation mode
0 : Pump mode (External Inductance required)
1 : Regulator mode (No External inductance required if VCC > CVCC+0.3V)
Current Overflow Adjustment on Smart Card terminal
0 : normal: 100 mA average
1 : normal + 20%
VCARDOK=0
Maximum Startup Current drawn from power supply
00 : Normal: 30 mA average
01 : Normal + 30%
10 : Normal + 50%
11 : Normal + 80%
DC/DC Clock Prescaler Value
0000 : Division factor: 2 (reset value)
0001 : Division factor: 3
0010 : Division factor: 4
0011 : Division factor: 5
0100 : Division factor: 6
0101 : Division factor: 8
0110 : Division factor: 10
0111 : Division factor: 12
1000 : Division factor: 24
Other values are reserved
BOOST1
5
BOOST0
4
DCCKPS3
3
DCCKPS2
VCARDOK=1
Current Overflow Level on Smart Card terminal
00 : Normal = OVFADJ
01 : Normal + 30%
10 : Normal + 50%
11 : Normal + 80%
2
DCCKPS1
1
4202F–SCR–07/2008
DCCKPS0
0
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