AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 197

• 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: -

23.4.2
23.4.2.1
23.4.2.2
23.4.2.3
4109L–8051–02/08
MMC Interface
Definition of symbols
Timings
Waveforms
Table 173. MMC Interface Timing Symbol Definitions
Table 174. MMC Interface AC timings
V
Figure 23-19. MMC Input-Output Waveforms
DD
= 2.7 to 3.3 V, T
C
D
O
T
T
T
T
T
T
T
T
T
CHCH
CHCX
CLCX
CLCH
CHCL
DVCH
CHDX
CHOX
OVCH
Symbol
MCMD Output
MDAT Output
MCMD Input
MDAT Input
A
= -40 to +85°C, CL ≤ 100pF (10 cards)
Signals
MCLK
Clock Period
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
Input Data Valid to Clock High
Input Data Hold after Clock High
Output Data Hold after Clock High
Output Data Valid to Clock High
Clock
Data In
Data Out
Parameter
T
CHIX
T
T
CHCX
CHOX
T
CHCL
T
CHCH
H
L
V
X
AT8xC51SND1C
T
CLCX
Min
T
50
10
10
3
3
5
5
OVCH
T
CLCH
T
Conditions
IVCH
Max
High
Low
Valid
No Longer Valid
10
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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