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204
Rabbit 3000 Microprocessor
The following memory read time delays were measured.
The measurements were taken at the 50% points under the following conditions.
•
T = -40°C to 85°C, V = 3.3 V
•
Internal clock to nonloaded CLK pin delay
1 ns @ 85°V/4.5 V
The following memory write time delays were measured.
The measurements were taken at the 50% points under the same conditions that the mem-
ory read delays were measured.
See Table 16-2 for delays at other voltages.
Table 16-3. Memory Read Time Delays
Time Delay
Output Capacitance
30 pF
60 pF
90 pF
Clock to address delay (T
adr
)
6 ns
8 ns
11 ns
Clock to memory chip select delay (T
CSx
)
6 ns
8 ns
11 ns
Clock to memory read strobe delay (T
OEx
)
6 ns
8 ns
11 ns
Data setup time (T
setup
)
1 ns
Data hold time (T
hold
)
1 ns
Table 16-4. Memory Write Time Delays
Time Delay
Output Capacitance
30 pF
60 pF
90 pF
Clock to address delay (T
adr
)
6 ns
8 ns
11 ns
Clock to memory chip select delay (T
CSx
)
6 ns
8 ns
11 ns
Clock to memory write strobe delay (T
WEx
)
6 ns
8 ns
11 ns
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