AT80C51RD2-SLSUM Atmel, AT80C51RD2-SLSUM Datasheet - Page 68

• Manufacturer Part Number: AT80C51RD2-SLSUM
• Description: MCU, 8BIT, 8051, 5V, SPI, 20MHZ, 44PLCC
• Manufacturer: Atmel

Specifications of AT80C51RD2-SLSUM

• Controller Family/series: (8051) 8052
• No. Of I/o's: 32
• Ram Memory Size: 1280Byte
• Cpu Speed: 40MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 5
• Core Size: 8bit
• Oscillator Type: External Only
• Processor Series: AT80x
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Type: ROMLess
• Data Ram Size: 1280 B
• Interface Type: UART, SPI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Cpu Family: AT80
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 40MHz
• Program Memory Size: Not Required
• Total Internal Ram Size: 1.25KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.5.7
68
Symbol
Speed
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
AT/TS8xC51Rx2
Serial Port Timing - Shift Register Mode
PORT 0
PORT 2
Min
300
200
ALE
PSEN
30
0
RD
40 MHz
-M
Figure 11-8. External Data Memory Read Cycle
Table 11-10. AC Parameters for a Fix Clock
Symbol
T
T
T
T
T
XLXL
QVHX
XHQX
XHDX
XHDV
OR SFR-P2
ADDRESS
Max
117
Min
60 MHz equiv.
200
117
13
0
X2 mode
30 MHz
-V
Max
34
A0-A7
T
LLAX
T
AVWL
standard mode 40
T
Min
300
200
30
LLWL
0
T
MHz
AVDV
-V
T
LLDV
ADDRESS A8-A15 OR SFR P2
Max
117
T
T
RLAZ
RLDV
40 MHz equiv.
Min
300
200
30
Parameter
Serial port clock cycle time
Output data set-up to clock rising edge
Output data hold after clock rising edge
Input data hold after clock rising edge
Clock rising edge to input data valid
0
X2 mode
20 MHz
-L
T
Max
RLRH
117
DATA IN
standard mode
Min
400
283
47
0
T
T
30 MHz
WHLH
RHDX
-L
Max
200
T
RHDZ
4188F–8051–01/08
Units
ns
ns
ns
ns
ns