AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 219

• 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

24.3
24.3.1
24.3.1.1
24.3.1.2
4341H–MP3–10/07
AC Characteristics
External Program Bus Cycles
Definition of Symbols
Timings
Table 24-9.
Test conditions: capacitive load on all pins= 50 pF.
Table 24-10. External Program Bus Cycle - Read AC Timings
V
A
I
L
P
Symbol
DD
T
T
T
T
T
T
T
T
T
T
T
CLCL
AVLL
LLAX
PLPH
PLAZ
LHLL
PXIX
PXIZ
AVIV
LLIV
PLIV
= 2.7 to 3.3 V, T
Clock Period
ALE Pulse Width
Address Valid to ALE Low
Address hold after ALE Low
ALE Low to Valid Instruction
PSEN Pulse Width
PSEN Low to Valid Instruction
Instruction Hold After PSEN High
Instruction Float After PSEN High
Address Valid to Valid Instruction
PSEN Low to Address Float
External Program Bus Cycles Timing Symbol Definitions
Signals
Address
Instruction In
ALE
PSEN
Parameter
A
= -40 to +85°C
2·T
4·T
3·T
T
T
CLCL
CLCL
Min
CLCL
CLCL
CLCL
50
0
Standard Mode
Variable Clock
-20
-20
-15
-35
-25
AT8xC51SND2C/MP3B
3·T
5·T
T
CLCL
Max
CLCL
CLCL
10
H
L
V
X
Z
-10
-35
-35
0.5·T
0.5·T
1.5·T
2·T
T
CLCL
Min
CLCL
50
CLCL
CLCL
CLCL
0
Variable Clock
Conditions
-15
-35
-20
-20
-25
X2 Mode
High
Low
Valid
No Longer Valid
Floating
1.5·T
0.5·T
2.5·T
Max
10
CLCL
CLCL
CLCL
-35
-10
-35
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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