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158
Rabbit 2000 Microprocessor
The following I/O read time delays were measured.
The measurements were taken at the 50% points under the following conditions.
•
T = -40°C to 85°C, V = 5.0 V ±10%
•
Internal clock to nonloaded CLK pin delay
≤
1 ns @ 85°C/4.5 V
The following I/O write time delays were measured.
The measurements were taken at the 50% points under the same conditions that the I/O
read delays were measured.
Table 15-5. I/O Read Time Delays
Time Delay
Output Capacitance
20 pF
70 pF
min.
max.
min.
max.
Clock to address delay (T
adr
)
—
8 ns
—
14 ns
Clock to memory chip select delay (T
CSx
)
—
8 ns
—
14 ns
Clock to I/O chip select delay (T
IOCSx
)
—
8 ns
—
14 ns
Clock to I/O read strobe delay (T
IORD
)
—
6 ns
—
12 ns
Clock to I/O buffer enable delay (T
BUFEN
)
—
8 ns
—
14 ns
Data setup time (T
setup
)
3 ns
—
3 ns
—
Data hold time (T
hold
)
0 ns
—
0 ns
—
Table 15-6. I/O Write Time Delays
Time Delay
Output Capacitance
20 pF
70 pF
min.
max.
min.
max.
Clock to address delay (T
adr
)
—
8 ns
—
14 ns
Clock to memory chip select delay (T
CSx
)
—
8 ns
—
14 ns
Clock to I/O chip select delay (T
IOCSx
)
—
8 ns
—
14 ns
Clock to I/O write strobe delay (T
IOWR
)
—
6 ns
—
12 ns
Clock to I/O buffer enable delay (T
BUFEN
)
—
8 ns
—
14 ns
High Z to data valid relative to clock (T
DHZV
)
—
11 ns
—
17 ns
Data valid to high Z relative to clock (T
DVHZ
)
—
11 ns
—
17 ns
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