AT80C51RD2-SLSUM Atmel, AT80C51RD2-SLSUM Datasheet - Page 72

• 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

17.3.8
17.3.9
17.3.10
4113D–8051–01/09
Shift Register Timing Waveforms
External Clock Drive Waveforms
AC Testing Input/Output Waveforms
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
INPUT DATA
CLEAR RI
Table 17-9.
AC inputs during testing are driven at V
measurement are made at V
T
QVXH
0
INPUT/OUTPUT
0.45V
T
XHDV
V
CC
1
-0.5V
0
AC Parameters for a Variable Clock
VALID
T
XLXL
T
XHQX
2
1
0.2V
VALID
0.7V
Symbol
CC
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
IH
XLXL
CC
-0.1
T
V
CHCL
T
CC
min for a logic “1” and V
3
XHDX
2
0.45V
-0.5V
VALID
Type
Max
Min
Min
Min
Min
4
CC
3
VALID
- 0.5 for a logic “1” and 0.45V for a logic “0”. Timing
Standard
10 T - x
10 T - x
Clock
2 T - x
T
12 T
CLCX
x
5
4
VALID
IL
0.2 V
0.2 V
X2 Clock
5 T - x
max for a logic “0”.
5 T- x
T - x
T
6 T
6
x
5
CLCL
CC
CC
VALID
+ 0.9
- 0.1
T
CLCH
X Parameter for -
T
7
6
CHCX
VALID
M Range
AT80C51RD2
133
50
20
0
SET TI
SET RI
8
7
VALID
Units
ns
ns
ns
ns
ns
69