MT90840AP Zarlink, MT90840AP Datasheet - Page 55

• Manufacturer Part Number: MT90840AP
• Description: Switch Fabric 512 x 2430/512 x 512/2.373K x 2.373K 5V 84-Pin PLCC Tube
• Manufacturer: Zarlink

Specifications of MT90840AP

• Package: 84PLCC
• Number Of Ports: 16
• Fabric Size: 512 x 2430|512 x 512|2.373K x 2.373K
• Switch Core: Non-Blocking
• Port Speed: 8.192|4.096|2.048 Mbps
• Operating Supply Voltage: 5 V

AC Electrical Characteristics - Parallel Data Port
‡ Typical figures are at 25
10
12
13
14
15
11
1
2
3
4
5
6
7
8
9
PCKR
PPFRi
PPFT
PPFT
Note: For the PPFT depicted above, PPFP = HIGH. If PPFP is LOW, the PPFT line will have negative pulse polarity.
PCKT/PCKR clock period
PCKT/PCKR HIGH time
PCKT/PCKR LOW time
PPFTo output delay
from PCKR/PCKT transmit edge
PDo output delay
from PCKR/PCKT transmit edge
CTo0-3 output delay
from PCKR/PCKT transmit edge
PDo delay from Active to High-Z
PDo delay from High-Z to Active
PPFRi Setup Time
from PCKR sampling edge
PPFRi Hold Time
from PCKR sampling edge
PDi Set-up Time
from PCKR sampling edge
PDi Hold Time
from PCKR sampling edge
PPFTi Input Setup Time
from PCKT sampling edge
PPFTi Input Hold Time
from PCKT sampling edge
Jitter between PCKT/PCKR and
C4 serial port clock.
Characteristics
°
C and are for design aid only: not guaranteed and not subject to production testing.
Figure 29 - Parallel Port in Timing Mode 4
Sym.
t
t
t
t
t
t
t
t
t
t
t
ppfs
ppfh
clkh
t
t
t
t
sod
stih
clkl
stis
clk
cdf
za
az
frs
frh
pv
df
Zarlink Semiconductor Inc.
MT90840
Min.
-100
50
20
20
5
8
5
8
5
5
TCP = 0
TCP = 1
55
Typ.
‡
Max.
+100
28
30
28
30
26
28
26
28
t
df
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
df
C
C
C
C
C
C
C
C
C4/8R1 or C4/8R2 at 4.096
MHz with 50% duty cycle
TM1, PFDI = 1
TM1, PFDI = 1
L
L
L
L
L
L
L
L
=30pF
=50pF
=30pF
=50pF
=30pF
=50pF
=30pF, R
=30pF, R
Test Conditions
L
L
=1K
=1K
Data Sheet