SC220 ZARLINK [Zarlink Semiconductor Inc], SC220 Datasheet - Page 26

• Manufacturer Part Number: SC220
• Description: XpressFlow 2020 Ethernet Routing Switch Chipset
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

XpressFlow-2020 Series –
Ethernet Switch Chipset
© 1998 Vertex Networks, Inc.
1999
Symbol
S12
S13
S14
S15
S17
S18
S19
S20
S21
S22
S23
S24
S27
S28
S29
S30
S31
S32
S1
S2
S3
S4
S6
S7
S8
S9
S_D[31:0] output valid delay
S_MSGEN# output valid delay
S_EOF# output valid delay
S_IRDY output valid delay
S_TABT# output valid delay
S_HPREQ# output valid delay
S_GNT[7:0]# output valid delay
S_OVLD# output valid delay
S_D[31:0] output float delay
S_MSGEN# output float delay
S_EOF# output float delay
S_IRDY output float delay
S_D[31:0] input set-up time
S_D[31:0] input hold time
S_MSGEN# input set-up time
S_MSGEN# input hold time
S_EOF# input set-up time
S_EOF# input hold time
S_IRDY input set-up time
S_IRDY input hold time
S_TABT# input set-up time
S_TABT# input hold time
S_HPREQ# input set-up time
S_HPREQ# input hold time
S_REQ[7:0]# input set-up time
S_REQ[7:0]# input hold time
P
R
E
L
Parameter
AC Characteristics -- XpressFlow Bus Interface
I
M
I
N
A
R
Min (ns)
Y
5.5
5.5
5.5
5.5
5.5
5.5
4.5
5.5
5.5
6
6
6
6
6
6
6
6
2
2
2
2
6
-40
I
25
Max
(ns)
14
14
14
14
14
14
14
14
18
18
18
18
N
F
Min (ns)
1.5
4.5
1.5
4.5
1.5
4.5
1.5
4.5
4.5
4.5
3.5
4.5
4.5
O
5
5
5
5
5
5
5
5
5
-50
R
Max
(ns)
11
11
11
11
11
11
11
11
15
15
15
15
M
A
Min (ns)
3.5
3.5
3.5
3.5
3.5
3.5
2.5
3.5
3.5
T
4
4
4
4
4
4
4
4
1
1
1
1
4
-66
I
XpressFlow Engine
Max
O
(ns)
8.5
8.5
8.5
8.5
8.5
8.5
8.5
8.5
12
12
12
12
N
Rev. 4.5 – February
C
C
C
C
C
C
C
C
L
L
L
L
L
L
L
L
= 50pf
= 50pf
= 50pf
= 50pf
= 50pf
= 50pf
= 20pf
= 50pf
Note:
SC220