TS80C51RA2-VCA Atmel, TS80C51RA2-VCA Datasheet - Page 65

• 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: -

11.5.3
Figure 11-6. External Program Memory Read Cycle
4188F–8051–01/08
External Program Memory Read Cycle
PORT 0
PORT 2
PSEN
ALE
INSTR IN
OR SFR-P2
ADDRESS
Table 11-7.
Symbol
T
T
T
T
T
T
T
T
T
T
T
PLPH
LHLL
AVLL
LLAX
PLAZ
LLPL
PXIX
PXIZ
AVIV
LLIV
PLIV
T
LHLL
T
T
AC Parameters for a Variable Clock: derating formula
LLAX
AVLL
A0-A7
Type
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
T
AVIV
ADDRESS A8-A15
T
LLIV
T
LLPL
TPLAZ
T
Standard
PLIV
2 T - x
4 T - x
3 T - x
3 T - x
5 T - x
Clock
T - x
T - x
T - x
T - x
x
x
T
PLPH
INSTR IN
T
PXIX
X2 Clock
0.5 T - x
0.5 T - x
0.5 T - x
1.5 T - x
1.5 T - x
0.5 T - x
2.5 T - x
12 T
2 T - x
T - x
x
x
CLCL
T
PXIZ
T
-M
10
15
15
30
10
20
40
40
10
PXAV
0
7
A0-A7
ADDRESS A8-A15
13
13
22
15
25
30
10
AT/TS8xC51Rx2
-V
8
8
0
5
INSTR IN
15
20
20
35
15
25
45
15
45
10
-L
0
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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