MT90820AL Zarlink, MT90820AL Datasheet - Page 27

• Manufacturer Part Number: MT90820AL
• Description: Switch Fabric 2K x 2K/1K x 1K/512 x 512 131.072Mbps 5V 100-Pin MQFP Tray
• Manufacturer: Zarlink

Specifications of MT90820AL

• Package: 100MQFP
• Number Of Ports: 16
• Fabric Size: 2K x 2K|1K x 1K|512 x 512
• Switching Bandwidth: 131.072 Mbps
• Switch Core: Non-Blocking
• Port Speed: 2.048|4.096|8.192 Mbps
• Operating Supply Voltage: 5 V

AC Electrical Characteristics - Frame Pulse and CLK
10 Frame Pulse Hold Time from HCLK
11 HCLK (4.096MHz) Period
12 HCLK (4.096MHz) Pulse Width High
13 HCLK (4.096MHz) Pulse Width Low
14 HCLK Rise/Fall Time
15 Delay between falling edge of HCLK
1 Frame pulse width (ST-BUS, GCI)
2 Frame Pulse Setup time before CLK
3 Frame Pulse Hold Time from CLK
4 CLK Period
5 CLK Pulse Width High
6 CLK Pulse Width Low
7 Clock Rise/Fall Time
8 Wide frame pulse width
9 Frame Pulse Setup Time before
falling (ST-BUS or GCI)
falling (ST-BUS or GCI)
HCLK falling
falling
and falling edge of CLK
Bit rate = 8.192 Mb/s
Bit rate = 2.048 Mb/s
Bit rate = 4.096 Mb/s
Bit rate = 8.192 Mb/s
Bit rate = 2.048 Mb/s
Bit rate = 4.096 Mb/s
Bit rate = 8.192 Mb/s
Bit rate = 2.048 Mb/s
Bit rate = 4.096 Mb/s
Bit rate = 8.192 Mb/s
Bit rate = 2.048 Mb/s
Bit rate = 4.096 Mb/s
Bit rate = 8.192 Mb/s
Bit rate = 8.192 Mb/s
Bit rate = 8.192 Mb/s
Bit rate = 8.192 Mb/s
Characteristic
t
Sym.
t
t
Hr
t
t
HFPW
t
t
t
t
t
HFPH
t
HFPS
t
t
FPW
t
t
HCH
HCL
FPH
r
HCP
FPS
DIF
CP
CH
CL
, t
, t
f
Hf
Zarlink Semiconductor Inc.
MT90820
Min.
190
195
190
110
-10
26
26
26
10
16
55
85
50
20
85
50
20
10
20
85
85
27
Typ.
Max.
295
145
300
150
150
150
295
150
150
300
150
150
80
70
75
40
75
40
10
10
10
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
WFPS Pin = 0
WFPS Pin = 0
WFPS Pin = 0
WFPS Pin = 0
WFPS Pin = 0
WFPS Pin = 0
WFPS Pin = 1
WFPS Pin = 1
WFPS Pin = 1
WFPS Pin = 1
WFPS Pin = 1
WFPS Pin = 1
WFPS Pin = 0 or 1
Notes
Data Sheet