AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 189

• 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: -

4109L–8051–02/08
Table 166. External Data 8-bit Bus Cycle - Write AC Timings
V
DD
= 2.7 to 3.3 V, T
Symbol
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
WHLH
QVWH
WHQX
RLRH
RHLH
AVDV
RHDX
RHDZ
AVWL
AVRL
RLDV
RLAZ
CLCL
LLWL
LHLL
AVLL
LLAX
RD Pulse Width
RD high to ALE High
Address Valid to Valid Data In
Address Valid to RD Low
RD Low to Valid Data
RD Low to Address Float
Data Hold After RD High
Data Float After RD High
Clock Period
ALE Pulse Width
Address Valid to ALE Low
Address hold after ALE Low
ALE Low to WR Low
WR Pulse Width
WR High to ALE High
Address Valid to WR Low
Data Valid to WR High
Data Hold after WR High
A
= -40 to +85°C
Parameter
Parameter
6·T
4·T
2·T
3·T
6·T
4·T
7·T
T
T
T
T
T
CLCL
CLCL
CLCL
CLCL
CLCL
Min
CLCL
CLCL
Min
CLCL
CLCL
CLCL
CLCL
CLCL
50
Standard Mode
0
Standard Mode
Variable Clock
Variable Clock
-20
-20
-20
-20
-15
-25
-30
-15
-30
-25
-30
-20
9·T
5·T
2·T
T
T
CLCL
CLCL
Max
Max
CLCL
CLCL
CLCL
0
+20
+20
-65
-30
-25
AT8xC51SND1C
0.5·T
0.5·T
0.5·T
1.5·T
0.5·T
3.5·T
0.5·T
3·T
2·T
3·T
2·T
T
CLCL
CLCL
CLCL
CLCL
CLCL
Min
Min
50
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0
Variable Clock
Variable Clock
-15
-25
-30
-25
-30
X2 Mode
-20 0.5·T
X2 Mode
-20
-20
-30
-20 0.5·T
-20
-15
4.5·T
2.5·T
T
CLCL
Max
Max
CLCL
CLCL
CLCL
CLCL
0
-25
+20
+20
-65
-30
Unit
Unit
189
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns