MT90823AG Zarlink Semiconductor, Inc., MT90823AG Datasheet - Page 26

• Manufacturer Part Number: MT90823AG
• Description: Switch Fabric, 131.072Mbps Switching Bandwidth, 3.3V Supply Voltage, 120-PBGA
• Manufacturer: Zarlink Semiconductor, Inc.

MT90823
AC Electrical Characteristics - Serial Streams for ST-BUS and GCI Backplanes
Note:
26
1
2
3
4
5
6
7
1. High Impedance is measured by pulling to the appropriate rail with R
Sti Set-up Time
Sti Hold Time
Sto Delay - Active to Active
STo delay - Active to High-Z
Sto delay - High-Z to Active
Output Driver Enable (ODE)
Delay
CSTo Output Delay
Figure 11 - ST-BUS Timing for 2.048 Mb/s and High Speed Serial Interface at 4.096 Mb/s
CLK
STo
F0i
STi
Note 1:
2.048 Mb/s mode, last channel = ch 31,
4.196 Mb/s mode, last channel = ch 63,
8.192 Mb/s mode, last channel = ch 127.
Characteristic
CMOS
Bit 0, Last Ch (Note1)
Bit 0, Last Ch (Note1)
t
FPS
t
FPW
or 8.192 Mb/s, when WFPS pin = 0.
t
FPH
Sym
t
t
t
t
SOD
ODE
t
t
t
XCD
t
SOD
SIH
SIS
DZ
ZD
Bit 7, Channel 0
t
SIS
Bit 7, Channel 0
Min
10
0
t
CP
t
SIH
Typ
L
Bit 6, Channel 0
, with timing corrected to cancel time taken to discharge C
Bit 6, Channel 0
Max
30
40
32
32
32
30
40
t
CH
Units
Bit 5, Channel 0
ns
ns
ns
ns
ns
ns
ns
Bit 5, Channel 0
t
CL
C
C
R
R
R
C
C
L
L
L
L
L
L
L
=30pF
=200pF
=1K, C
=1K, C
=1K, C
=30pF
=200pF
t
r
Test Conditions
L
L
L
=200pF, See Note 1
=200pF, See Note 1
=200pF, See Note 1
t
f
V
V
V
V
V
V
CT
CT
HM
TT
CT
LM
L
.