AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 18

• Manufacturer Part Number: AT89C51SND1C-ROTUL
• Description: IC 8051 MCU FLASH 64K MP3 80TQFP
• Manufacturer: Atmel
• Series: 89Cr

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: -

6. Program/Code Memory
Figure 6-1.
6.1
18
FFFFh
0000h
ROMLESS Memory Architecture
AT8xC51SND1C
AT80C51SND1C
Program/Code Memory Organization
External Code
64K Bytes
The AT8xC51SND1C execute up to 64K Bytes of program/code memory. Figure 6-1 shows the
split of internal and external program/code memory spaces depending on the product.
The AT83SND1C product provides the internal program/code memory in ROM memory while
the AT89C51SND1C product provides it in Flash memory. These 2 products do not allow exter-
nal code memory execution. External code memory execution is achieved using the
AT80C51SND1C product which does not provide any internal program/code memory.
The Flash memory increases EPROM and ROM functionality by in-circuit electrical erasure and
programming. The high voltage needed for programming or erasing Flash cells is generated on-
chip using the standard V
AT89C51SND1C can be programmed using only one voltage and allows In-application software
programming. Hardware programming mode is also available using common programming
tools. See the application note ‘Programming T89C51x and AT89C51x with Device
Programmers’.
The AT89C51SND1C implements an additional 4K Bytes of on-chip boot Flash memory pro-
vided in Flash memory. This boot memory is delivered programmed with a standard boot loader
software allowing In-System Programming (ISP). It also contains some Application Program-
ming Interface routines named API routines allowing In Application Programming (IAP) by using
user’s own boot loader.
As shown in Figure 6-2 the AT80C51SND1C external memory is composed of one space
detailed in the following paragraph.
FFFFh
0000h
AT83SND1C
Code ROM
64K Bytes
DD
voltage, made possible by the internal charge pump. Thus, the
FFFFh
F000h
0000h
AT89C51SND1C
Code Flash
64K Bytes
FFFFh
F000h
4109L–8051–02/08
Boot Flash
4K Bytes