DC and Switching Characteristics
Table 5–22. Routing Delay Internal Timing Microparameters
–3 Speed
Grade
–4 Speed
Grade
–5 Speed
Grade
–6 Speed
Grade
–7 Speed
Grade
Routing
Unit
Min
Max
429
326
330
Min
Max
556
423
429
Min
Max
Min
Max
(1)
Min
Max
(1)
tC4
tR4
tLOCAL
—
—
—
—
—
—
—
—
—
687
521
529
—
—
—
—
—
—
ps
ps
ps
(1)
(1)
(1)
(1)
Note to Table 5–22:
(1) The numbers will only be available in a later revision.
External Timing Parameters
External timing parameters are specified by device density and speed
grade. All external I/O timing parameters shown are for the 3.3-V LVTTL
I/O standard with the maximum drive strength and fast slew rate. For
external I/O timing using standards other than LVTTL or for different
drive strengths, use the I/O standard input and output delay adders in
Tables 5–27 through 5–31.
f
For more information about each external timing parameters symbol,
refer to the Understanding Timing in MAX II Devices chapter in the
MAX II Device Handbook.
Altera Corporation
July 2008
5–21
MAX II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
