TS87C51RD2 ATMEL Corporation, TS87C51RD2 Datasheet - Page 65

• Manufacturer Part Number: TS87C51RD2
• Description: (TS8xC51Rx2) High Performance 8-bit Microcontroller
• Manufacturer: ATMEL Corporation

11.5.3
Figure 11-6. External Program Memory Read Cycle
4188E–8051–08/06
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
LHLL
AVLL
LLAX
PLPH
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
Clock
2 T - x
4 T - x
3 T - x
3 T - x
5 T - x
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
65