Chapter 3: DC and Switching Characteristics for MAX V Devices
3–21
Timing Model and Specifications
Table 3–28 lists the external I/O timing parameters for the 5M570Z device.
Table 3–28. Global Clock External I/O Timing Parameters for the 5M570Z Device (Note 1)
C4
C5, I5
Symbol
tPD1
Parameter
Condition
Unit
Min
—
Max
9.5
5.7
—
Min
—
Max
17.7
8.5
—
Worst case pin-to-pin delay through one LUT
Best case pin-to-pin delay through one LUT
Global clock setup time
10 pF
10 pF
—
ns
ns
ns
ns
ns
ps
ps
tPD2
tSU
tH
—
—
2.2
0
4.4
0
Global clock hold time
—
—
—
tCO
tCH
tCL
Global clock to output delay
Global clock high time
10 pF
—
2.0
253
253
6.7
—
2.0
339
339
8.7
—
Global clock low time
—
—
—
Minimum global clock period for 16-bit
counter
tCNT
fCNT
—
—
5.4
—
—
8.4
—
—
ns
Maximum global clock frequency for 16-bit
counter
184.1
118.3
MHz
Note to Table 3–28:
(1) The maximum frequency is limited by the I/O standard on the clock input pin. The 16-bit counter critical delay performs faster than this global
clock input pin maximum frequency.
Table 3–29 lists the external I/O timing parameters for the 5M1270Z device.
Table 3–29. Global Clock External I/O Timing Parameters for the 5M1270Z Device (Note 1), (2)
C4
C5, I5
Symbol
tPD1
Parameter
Condition
Unit
Min
—
Max
8.1
4.8
—
Min
—
Max
10.0
5.9
—
Worst case pin-to-pin delay through one LUT
Best case pin-to-pin delay through one LUT
Global clock setup time
10 pF
10 pF
—
ns
ns
ns
ns
ns
ps
ps
tPD2
tSU
tH
—
—
1.5
0
1.9
0
Global clock hold time
—
—
—
tCO
tCH
tCL
Global clock to output delay
Global clock high time
10 pF
—
2.0
216
216
5.9
—
2.0
266
266
7.3
—
Global clock low time
—
—
—
Minimum global clock period for 16-bit
counter
tCNT
fCNT
—
—
4.0
—
—
5.0
—
—
ns
Maximum global clock frequency for 16-bit
counter
247.5
201.1
MHz
Notes to Table 3–29:
(1) The maximum frequency is limited by the I/O standard on the clock input pin. The 16-bit counter critical delay performs faster than this global
clock input pin maximum frequency.
(2) Not applicable to the F324 package of the 5M1270Z device.
May 2011 Altera Corporation
MAX V Device Handbook
ALTERA [ ALTERA CORPORATION ]
