AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 63
AT89C51SND1C-ROTUL
Manufacturer Part Number
AT89C51SND1C-ROTUL
Description
IC 8051 MCU FLASH 64K MP3 80TQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT80C51SND1C-ROTIL.pdf
(213 pages)
Specifications of AT89C51SND1C-ROTUL
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, IDE/ATAPI, MMC, SPI, UART/USART, USB
Peripherals
Audio, I²S, MP3, PCM, POR, WDT
Number Of I /o
44
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 2x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TQFP, 80-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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12.4
4109L–8051–02/08
Registers
Table 68. WDTRST Register
WDTRST (S:A6h Write only) – Watchdog Timer Reset Register
Reset Value = XXXX XXXXb
Figure 12-4. WDTPRG Register
WDTPRG (S:A7h) – Watchdog Timer Program Register
Reset Value = XXXX X000b
Number
Number
7 - 0
7 - 3
2 - 0
Bit
Bit
7
7
-
-
Mnemonic Description
Mnemonic Description
WTO2:0
Bit
Bit
6
6
-
-
-
-
Watchdog Control Value
Reserved
The value read from these bits is indeterminate. Do not set these bits.
Watchdog Timer Time-Out Selection Bits
Refer to Table 67 for time-out periods.
5
5
-
-
4
4
-
-
3
3
-
-
AT8xC51SND1C
WTO2
2
2
-
WTO1
1
1
-
WTO0
0
0
-
63
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