WidePort LANCAM® Family
OPERATIONAL CHARACTERISTICS Continued
SWITCHING CHARACTERISTICS (see Note 3)
-90
-12
-50
-70
Cycle Time
“A” Devices
“L” Devices
Available
Not Available
·
N/A
· · · ·
N/A
· · ·
Min
120
35
Min
50
15
30
45
5
Max
No
1
Symbol
Max Min Max Min Max
Notes
Parameter (all times in nanoseconds)
t
ELEL
70
15
35
55
15
0
90
25
50
75
15
0
Chip Enable Compare Cycle Time
t
2
ELEH
4
4
4
Chip Enable LOW
Pulse Width
Short Cycle:
Medium Cycle:
Long Cycle:
75
100
20
t
3
4
EHEL
Chip Enable HIGH Pulse Width
Control Input to Chip Enable LOW
Set-up Time
t
0
0
CVEL
5
5
t
15
3
10
3
5
ELCX
10
3
10
3
Control Input from Chip Enable LOW
Hold Time
t
6
7
ELQX
6
Chip Enable LOW to Outputs Active
Chip Enable LOW to Outputs Valid
t
70
85
20
ELQV
30
40
10
30
52
10
50
75
15
4,6
4,6
7
t
3
0
3
0
8
9
EHQZ
3
0
3
0
Chip Enable HIGH to Outputs High-Z
Data to Chip Enable LOW Set-up Time
t
DVEL
t
15
0
10
0
10
11
ELDX
10
0
10
0
Data from Chip Enable LOW Hold Time
Full In Valid to Chip Enable LOW
Set-up Time
t
FIVEL
t
8
12
13
14
FIVFFV
5
5
7
Full In Valid to Full Flag Valid
Chip Enable LOW to Full Flag Valid
Match In Valid to Chip Enable LOW
Set-up Time
t
90
ELFFV
35
50
75
t
0
0
0
0
MIVEL
0
0
0
0
t
15
16
17
18
19
EHMFX
Chip Enable HIGH to /MF, /MA, /MM Invalid
Match In Valid to /MF Valid
t
8
MIVMFV
4
5
7
t
30
30
EHMFV
16
18
16
18
25
25
Chip Enable HIGH to /MF Valid
Chip Enable HIGH to /MA and /MM Valid
Reset LOW Pulse Width
t
EHMXV
t
100
50
RLRH
100
100
8
Notes:
1. -1.0V for a duration of 10 ns measured at the 50% amplitude points for Input-only lines (Figure 8).
2. Common I/O lines are clamped, so that signal transients cannot fall below -0.5V.
3. Over Ambient Operating Temperature and Vcc(min) to Vcc(max).
4. See Table 8.
5. Control signals are /W, /CM, and /EC.
6. With load specified in Figure 7, Test Load A.
7. With load specified in Figure 7, Test Load B.
8. /E must be HIGH during this period to ensure accurate default values in the configuration registers.
9. With output and I/O pins unloaded.
10. TEST1 and TEST2 may not be implemented on all versions of these products.
25
Rev. 2
MUSIC [ MUSIC SEMICONDUCTORS ]
