MT8985AL Zarlink, MT8985AL Datasheet - Page 17

• Manufacturer Part Number: MT8985AL
• Description: Switch Fabric 256 x 256 16.384Mbps 5V 44-Pin MQFP Tray
• Manufacturer: Zarlink

Specifications of MT8985AL

• Package: 44MQFP
• Number Of Ports: 8
• Fabric Size: 256 x 256
• Switching Bandwidth: 16.384 Mbps
• Switch Core: Non-Blocking
• Port Speed: 2.048 Mbps
• Operating Supply Voltage: 5 V

AC Electrical Characteristics
† Timing is over recommended temperature & power supply voltages (V
‡ Typical figures are at 25
10 Clock Rise/Fall Time
1 Frame Pulse width
2 Frame Pulse setup time
3 Frame Pulse hold time
4 STo delay Active to Active
5 STi setup time
6 STi hold time
7 Clock period
8 CK Input Low
9 CK Input High
Characteristics
Output
Pin
°
C and are for design aid only: not guaranteed and not subject to production testing.
C
L
†
Test Point
- ST-BUS Timing -
V
SS
Sym.
S1
t
t
t
t
t
t
Figure 12 - Output Test Load
F0iW
t
STiH
t
t
F0iS
F0iH
DAA
STiS
t
C4i
CH
CL
r,
t
f
Zarlink Semiconductor Inc.
MT8985
Min.
200
Voltages are with respect to ground (VSS) unless otherwise stated.
10
20
20
20
85
85
R
L
17
DD
Typ.
=5V
244
244
122
122
45
±
‡
5%, V
S2
V
Max.
SS
190
190
100
300
150
150
SS
10
V
=0V, T
DD
A
=–40 to 85
Units
when testing output levels
or high impedance states.
V
levels or high impedance
states.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SS
S1 is open circuit except
S2 is switched to V
when testing output
C
°
C).
L
=150 pF
Test Conditions
DD
or
Data Sheet