TS80C51RA2-VCB Atmel, TS80C51RA2-VCB Datasheet - Page 64

• Manufacturer Part Number: TS80C51RA2-VCB
• Description: IC MCU 8BIT 256BYTE 40MHZ 44PLCC
• Manufacturer: Atmel
• Series: 80Cr

Specifications of TS80C51RA2-VCB

• 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: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
10.5.3. External Program Memory Read Cycle
64
Symbol
T
T
T
T
T
T
T
T
T
T
T
AVLL
LLAX
LHLL
LLPL
PLPH
AVIV
PLAZ
LLIV
PLIV
PXIX
PXIZ
PORT 0
PORT 2
PSEN
ALE
INSTR IN
OR SFR-P2
ADDRESS
Type
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
Table 38. AC Parameters for a Variable Clock: derating formula
Figure 25. External Program Memory Read Cycle
Standard
Clock
T
2 T - x
4 T - x
3 T - x
3 T - x
5 T - x
T - x
T - x
T - x
T - x
LHLL
x
x
T
T
LLAX
AVLL
A0-A7
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
T
2 T - x
T - x
AVIV
x
x
ADDRESS A8-A15
T
LLIV
T
LLPL
TPLAZ
T
PLIV
T
PLPH
-M
10
15
15
30
10
20
40
40
10
0
7
INSTR IN
T
PXIX
12 T
CLCL
-V
13
13
22
15
25
30
10
8
8
0
5
T
PXIZ
T
PXAV
A0-A7
-L
15
20
20
35
15
25
45
15
45
10
0
ADDRESS A8-A15
Rev. C - 06 March, 2001
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
INSTR IN