AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 233

• Manufacturer Part Number: AT89C51SND2C-7FTUL
• Description: IC 8051 MCU FLASH 64K MP3 100BGA
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND2C-7FTUL

• 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: 32
• 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; D/A 2x20b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: ATAPI, I2S, IDE, SPI, UART, USB
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: AT89C51SND2C7FTUL

24.4.5.3
4341H–MP3–10/07
Waveforms
Figure 24-28. External Clock Waveform
Figure 24-29. AC Testing Input/Output Waveforms
Note:
Figure 24-30. Float Waveforms
Note:
1. During AC testing, all inputs are driven at V
2. Timing measurements are made on all outputs at V
For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage
occurs and begins to float when a 100 mV change from the loading V
I
OL
0.45 V
/I
OH
= ±20 mA.
V
DD
V
LOAD
- 0.5
V
DD
V
0.45 V
IL
V
- 0.5
V
IH1
V
LOAD
LOAD
+ 0.1 V
- 0.1 V
INPUTS
T
CHCL
0.7 V
0.3 V
DD
DD
Timing Reference Points
DD
AT8xC51SND2C/MP3B
-0.5 V for a logic 1 and 0.45 V for a logic 0.
T
CLCX
IH
T
CLCH
min for a logic 1 and V
T
CLCL
V
V
OH
OH
OL
V
V
T
IL
IH
/V
+ 0.1 V
- 0.1 V
CHCX
max
min
OL
OUTPUTS
IL
level occurs with
max for a logic 0.
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