AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 21
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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6.3.1
6.3.2
6.3.3
6.3.4
6.4
4109L–8051–02/08
Hardware Security System
User Space
Boot Space
Hardware Security Space
Extra Row Space
Figure 6-6.
This space is composed of a 64K Bytes Flash memory organized in 512 pages of 128 Bytes. It
contains the user’s application code.
This space can be read or written by both software and hardware modes.
This space is composed of a 4K Bytes Flash memory. It contains the boot loader for In-System
Programming and the routines for In Application Programming.
This space can only be read or written by hardware mode using a parallel programming tool.
This space is composed of one Byte: the Hardware Security Byte (HSB see Table 23) divided in
2 separate nibbles. The MSN contains the X2 mode configuration bit and the Boot Loader Jump
Bit as detailed in Section “Boot Memory Execution”, page 22 and can be written by software
while the LSN contains the lock system level to protect the memory content against piracy as
detailed in Section “Hardware Security System”, page 21 and can only be written by hardware.
This space is composed of 2 Bytes:
•
•
The AT89C51SND1C implements three lock bits LB2:0 in the LSN of HSB (see Table 23) pro-
viding three levels of security for user’s program as described in
is always set in read disabled mode.
Level 0 is the level of an erased part and does not enable any security feature.
Level 1 locks the hardware programming of both user and boot memories.
The Software Boot Vector (SBV, see Table 24).
This Byte is used by the software boot loader to build the boot address.
The Software Security Byte (SSB, see
This Byte is used to lock the execution of some boot loader commands.
FFFFh
0000h
AT89C51SND1C Memory Architecture
Flash Memory
64K Bytes
Hardware Security
Extra Row
User
Table
25).
FFFFh
F000h
Flash Memory
4K Bytes
Table 23
AT8xC51SND1C
while the AT83SND1C
Boot
21
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