DS89C420 Dallas Semiconducotr, DS89C420 Datasheet - Page 29

• Manufacturer Part Number: DS89C420
• Description: Ultra-High-Speed Microcontroller
• Manufacturer: Dallas Semiconducotr

Table 9. Page Mode 1, Data Memory Cycle Stretch Values
(Pages1:Pages0 = 01)
Table 10. Page Mode 1, Data Memory Cycle Stretch Values
(Pages1:Pages0 = 10)
MD2:MD0
MD2:MD0
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
STRETCH
STRETCH
CYCLES
CYCLES
10
10
0
1
2
3
7
8
9
0
1
2
3
7
8
9
RD
RD
4X/2X, CD1,
4X/2X, CD1,
CD0 = 100
CD0 = 100
/
/
0.25
0.75
1.75
2.75
3.75
4.75
5.75
6.75
WR
WR
0.5
1
2
3
4
5
6
7
PULSE WIDTH (IN NUMBER OF OSCILLATOR CLOCKS)
PULSE WIDTH (IN NUMBER OF OSCILLATOR CLOCKS)
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4X/2X, CD1,
4X/2X, CD1,
CD0 = 000
CD0 = 000
11.5
13.5
0.5
1.5
3.5
5.5
7.5
9.5
10
12
14
1
2
4
6
8
4X/2X, CD1,
4X/2X, CD1,
CD0 = X10
CD0 = X10
11
15
19
23
27
12
16
20
24
28
1
3
7
2
4
8
4X/2X, CD1,
4X/2X, CD1,
CD0 = X11
CD0 = X11
12,288
16,384
20,480
24,576
28,672
11,264
15,360
19,456
23,552
27,648
2048
4096
8192
1024
3072
7168