IDT74FCT16952ATEB 查看數據表（PDF） - Integrated Device Technology
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IDT74FCT16952ATEB Datasheet PDF : 8 Pages
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IDT73720 /A16-BIT TRI-PORT BUS EXCHANGER
Clk2xIn
IDT R3051 FAMILY
RISController
ADDRESS/DATA
R305x
LOCAL BUS
IDT79R3721
DRAM
CONTROLLER
COMMERCIAL TEMPERATURE RANGE
CONTROL
DRAM
DRAM
IDT73720
BUS EXCHANGER
(2)
CPU
4 x (74FCT373)
Figure 2. Bus Exchanger Used in R3051 Family System
32
2 x (73720)
CPU
4 x (74FCT373)
2527 drw 04
32
2 x (73720)
Address
DRAM 1 DRAM 2
Data Bus Chip Count = 2 Pin Count = 136
Address
DRAM 1 DRAM 2
Data Bus Chip Count = 2 Pin Count = 136
CPU
CPU
32
32
4 x (74FCT373)
4 x (74FCT245) 4 x (74FCT245)
4 x (74FCT373)
4 x (74FCT543) 4 x (74FCT543)
Address
DRAM 1
DRAM 2
Address
DRAM 1
DRAM 2
Data Bus Chip Count = 8 Pin Count = 160
2527 drw 05
Figure 3. CPU System with Transparent Data Path
(2-way Interleaving)
Data Bus Chip Count = 8 Pin Count = 192
2527 drw 06
Figure 4. CPU System with Latched Data Path
(2-way Interleaving)
11.5
5
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