MT90840AP Zarlink, MT90840AP Datasheet - Page 53

• 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

PCKT
PDo0-7
PPFTi (PPFP=1)
PCKT/PCKR
PDo0-7
CTo0-3
PCKT/PCKR
PDo0-7
CTo0-3
Figure 26 - TM1 Parallel Port Transmit Timing (TM1 & PFDI = 1, PPFT is an input)
tristate
byte m-1
t
cdf
Figure 25 - Timing for the Parallel Port External Control Lines CTo0-3
t
za
byte m-1
t
cdf
CTo corresponding to
byte n
byte m
byte m
CTo corresponding to
byte m
Zarlink Semiconductor Inc.
byte m
MT90840
t
t
t
PPFS
sod
clkh
byte 0
CTo corresponding to
byte m+1
53
t
clk
byte m+1
t
clkl
t
PPFH
CTo corresponding to
byte m+1
byte m+1
byte 1
TCP controls the clock-edge
on which the output changes.
n = 2429, 2047, or 809
TCP = 1
TCP = 0
t
az
Data Sheet
tristate