AT89C5122D-RDRIM Atmel, AT89C5122D-RDRIM Datasheet - Page 176
![IC MCU 80C51 W/SMART CARD 64VQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
AT89C5122D-RDRIM
Manufacturer Part Number
AT89C5122D-RDRIM
Description
IC MCU 80C51 W/SMART CARD 64VQFP
Manufacturer
Atmel
Series
89Cr
Specifications of AT89C5122D-RDRIM
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-TQFP, 64-VQFP
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C5122DRDRIMTR
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AT83R5122, AT8xC5122/23
Table 109. Watchdog Timer Out Register - WDTPRG (0A7h)
Reset Value = XXXX X000b
The three lower bits (S0, S1, S2) located into WDTPRG register enables to program the
WDT duration.
Table 110. Machine Cycle Count
To compute WD Timeout, the following formula must be applied:
Note:
Number
7 - 3
Bit
7
2
1
0
-
S2
0
0
0
0
1
1
1
1
Svalue represents the decimal value of (S2 S1 S0)
Mnemonic
Bit
6
S2
S1
S0
-
-
S1
0
0
1
1
0
0
1
1
Time Out = 6 * (2
Description
Reserved
The value read from this bit is indeterminate. Do not change these bits.
WDT Time-out select bit 2
WDT Time-out select bit 1
WDT Time-out select bit 0
5
-
S0
0
1
0
1
0
1
0
1
4
-
14
* 2
Svalue
3
-
- 1 ) / F
Machine Cycle Count
CK_WD
S2
2
2
2
2
2
2
2
2
2
14
15
17
18
19
20
21
16
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
S1
1
4202F–SCR–07/2008
S0
0
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