AT80C51SND1C-ROTIL Atmel, AT80C51SND1C-ROTIL Datasheet - Page 12

• Manufacturer Part Number: AT80C51SND1C-ROTIL
• Description: IC MCU FLASH MP3 DECODER 80-TQFP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of AT80C51SND1C-ROTIL

• 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 Type: ROMless
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 2x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: AT80C51SND1CROTIL

4.3
12
Internal Pin Structure
AT8xC51SND1C
Table 15. Detailed Internal Pin Structure
Notes:
1. For information on resistors value, input/output levels, and drive capability, refer to the
2. When the Two Wire controller is enabled, P
3. In Port 2, P
Section “DC Characteristics”, page 181.
pseudo open-drain structure.
Latch Output
Watchdog Output
1
transistor is continuously driven when outputting a high level bit address (A15:8).
VDD
periods
2 osc
Circuit
VSS
VSS
(1)
VDD
P
N
VDD
P
N
P
VDD
VSS
N
1
VSS
D+
D-
VDD
P
P
VDD
2
1
, P
P
2
VDD
, and P
3
3
transistors are disabled allowing
Input/Output
Input/Output
Input/Output
Input/Output
Output
Type
Input
4109L–8051–02/08
MCMD
MDAT
PSEN
DOUT
MCLK
P53:0
SCLK
DCLK
DSEL
Pins
RST
P1
P2
TST
ALE
ISP
P3
P4
P0
D+
D-
(2)
(3)