AT89C51SND1C-7HTUL Atmel, AT89C51SND1C-7HTUL Datasheet - Page 17
AT89C51SND1C-7HTUL
Manufacturer Part Number
AT89C51SND1C-7HTUL
Description
IC MCU 64KB FLASH MEM 81-CBGA
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT80C51SND1C-ROTIL.pdf
(213 pages)
Specifications of AT89C51SND1C-7HTUL
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
81-CBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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4109L–8051–02/08
Reset Value = 0000 1000b
Table 18. PLLNDIV Register
PLLNDIV (S:EEh) – PLL N Divider Register
Reset Value = 0000 0000b
Table 19. PLLRDIV Register
PLLRDIV (S:EFh) – PLL R Divider Register
Reset Value = 0000 0000b
Number
Number
Number
6 - 0
7 - 0
Bit
Bit
Bit
R9
2
1
0
7
7
7
-
Mnemonic Description
Mnemonic Description
Mnemonic Description
PLOCK
PLLEN
N6:0
R9:2
Bit
N6
Bit
R8
Bit
6
6
-
-
Reserved
The value read from this bit is always 0. Do not set this bit.
PLL Enable Bit
Set to enable the PLL.
Clear to disable the PLL.
PLL Lock Indicator
Set by hardware when PLL is locked.
Clear by hardware when PLL is unlocked.
Reserved
The value read from this bit is always 0. Do not set this bit.
PLL N Divider
7 - bit N divider.
PLL Most Significant Bits R Divider
8 MSB of the 10-bit R divider.
N5
R7
5
5
N4
R6
4
4
N3
R5
3
3
AT8xC51SND1C
N2
R4
2
2
N1
R3
1
1
N0
R2
0
0
17
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