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IDT79R3041-20JG8

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34
19
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
Figure 11. Mode Selection and Negation of Reset
SysClk
Reset
t
25
t
26
Mode Vector Inputs:
SInt(2:0), Int(5:3)
t
27
Mode Vector Inputs:
Addr(3:0), BE16(1:0)
t
4
CPU DrivesExternal Device Drives Signals
2905 drw 12
Figure 10(b). Warm Reset Sequence (Internal Pull-Ups Used)
Figure 10(a). Warm Reset Sequence
Figure 9. Power-On Reset Sequence
Figure 8. RISController Family Clocking
ClkIn
t
20
t
21
t
22
t
32
t
sys
t
33
2905 drw 08
V
CC
ClkIn
t
23
2905 drw 09
ClkIn
t
24
2905 drw 10
ClkIn
t
23
2905 drw 11
20
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
Figure 12(a). Start of Read Timing with Non-Extended Address Hold Option
Figure 12(b). Start of Read Timing with Extended Address Hold Option
Addr
BE
SysClk
Rd
A/D(31:0)
ALE
Addr(3:2)
DataEn
Address
Memory
Turn
Bus
Sample
Data?
Cached? I/D
t
7
t
14
t
18
t
10
t
8
t
9
t
12
t
17
t
17
t
11
Diag
t
16
t
7a
2905 drw 13
Addr
BE
SysClk
Rd
A/D(31:0)
ALE
Addr(3:2)
DataEn
Address
Memory
Extend
Address
Sample
Data?
Cached? I/D
t
7
t
14
t
18
t
8
t
9
t
12
t
17
t
17
Diag
t
16
t
7a
2905 drw 14
t
48
21
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS COMMERCIAL TEMPERATURE RANGE
Figure 12(d). Start of Write Timing with Extended Address Hold Option
Addr
BE
SysClk
Wr
A/D(31:0)
ALE
Addr(3:2)
Address
Memory
Extended
Address
End
Write?
t
7
t
14
t
19
t
8
t
9
t
48
ExtDataEn
WrNear
t
7
Data
Out
t
7a
t
16
2905 drw 16
Figure 12(c). Start of Write Timing with Non-Extended Address Hold Option
Addr
BE
SysClk
Wr
A/D(31:0)
ALE
Addr(3:2)
Address
Memory
Data
Phase
End
Write?
t
7
t
14
t
19
t
10
t
8
t
9
t
48
ExtDataEn
WrNear
t
7
Data
Out
t
7a
t
16
2905 drw 15
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34

IDT79R3041-20JG8

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Buy IDT79R3041-20JG8
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Description:
IC MPU MIPS-I 20MHZ 84PLCC
Lifecycle:
New from this manufacturer.
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