Jameco Electronics Rabbit 3000 User Manual

Page 227

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218

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°C/3.0 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

Max. clock to address delay (T

adr

)

6 ns

8 ns

11 ns

Max. clock to memory chip select delay (T

CSx

)

6 ns

8 ns

11 ns

Max. clock to memory read strobe delay (T

OEx

)

6 ns

8 ns

11 ns

Min. data setup time (T

setup

)

1 ns

Min. data hold time (T

hold

)

0 ns

Table 16-4. Memory Write Time Delays

Time Delay

Output Capacitance

30 pF

60 pF

90 pF

Max. clock to address delay (T

adr

)

6 ns

8 ns

11 ns

Max. clock to memory chip select delay (T

CSx

)

6 ns

8 ns

11 ns

Max. clock to memory write strobe delay (T

WEx

)

6 ns

8 ns

11 ns

Max. high Z to data valid rel. to clock (T

DHZV

)

10 ns

12 ns

15 ns

Max. data valid to high Z rel. to clock (T

DVHZ

)

10 ns

12 ns

15 ns

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