TS80C51RA2-VCA Atmel, TS80C51RA2-VCA Datasheet - Page 68

• Manufacturer Part Number: TS80C51RA2-VCA
• Description: IC MCU 8BIT 256BYTE 40MHZ 40-DIP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of TS80C51RA2-VCA

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/30MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

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