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AM186ED-20KC/W データシート(PDF) 70 Page - Advanced Micro Devices

部品番号 AM186ED-20KC/W
部品情報  High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers
PDF  88 Pages
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メーカー  AMD [Advanced Micro Devices]
ホームページ  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM186ED-20KC/W データシート(HTML) 70 Page - Advanced Micro Devices

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Am186ED/EDLV Microcontrollers
PRELI M INARY
D
RA
F T
SWITCHING CHARACTERISTICS over COMMERCIAL and INDUSTRIAL operating ranges
DRAM
As guaranteed by design, the following table shows the minimum time for RAS assertion to RAS assertion. These
minimums correlate to DRAM spec tRC.
Parameter
Preliminary
Unit
20 MHz
25 MHz
33 MHz
40 MHz
No.
Symbol
Description
Min
Max
Min
Max
Min
Max
Min
Max
General Timing Responses
101
tCHCAV
CLKOUTA Low to Column
Address Valid
0250
20015012
ns
102
tCLRA
CLKOUTA Low to RAS Active
3253
20315312
ns
103
tCHRX
CLKOUTA High to RAS Inactive
3253
20315312
ns
104
tCHCA
CLKOUTA High to CAS Active
3253
20315312
ns
105
tCLCX
CLKOUTA Low to CAS Inactive
3253
20315312
ns
106
tCHRA
CLKOUTA High to RAS Active
3253
20315312
ns
107
tCLRX
CLKOUTA Low to RAS Inactive
3253
20315312
ns
108
tRP0W
RAS Inactive Pulse Width with 0
Wait States
60
—
50
—
40
—
30
—
ns
109
tRP1W
RAS Inactive Pulse Width with 1 or
More Wait States
70
—
60
—
50
—
40
—
ns
110
tRD0W
RAS To Column Address Delay
Time with 0 Wait States
25
—
20
—
15
—
15
—
ns
111
tRD1W
RAS to Column Address Delay
Time with 1 or More Wait States
30
—
25
—
20
—
15
—
ns
Wait States
012
3
40 MHz
90
110
130
150
33 MHz
110
130
150
170
25 MHz
130
150
170
190
20 MHz
150
170
190
210



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