MT90868 Zarlink Semiconductor, Inc., MT90868 Datasheet - Page 54

• Manufacturer Part Number: MT90868
• Description: High Bandwidth Digital Switch - 8,192 x 8,192 channels among local streams and 1,024 x 1,024 channels among two selected backplane streams
• Manufacturer: Zarlink Semiconductor, Inc.

MT90868
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25 C, V
54
AC Electrical Characteristics
testing.
10 Data hold on write
11 Acknowledgment Delay
12 Acknowledgment Hold Time
Note 1. High Impedance is measured by pulling to the appropriate rail with R
1
2
3
4
5
6
7
8
9
CS setup from DS falling
R/W setup from DS falling
Address setup from DS falling
CS hold after DS rising
R/W hold after DS rising
Address hold after DS rising
Data setup from DTA Low on Read
Data hold on read
Valid write data setup
R/W
DTA
A0-A15
D0-D15
READ
D0-D15
WRITE
DS
CS
Characteristics
DD_CORE
Figure 23 - Motorola Non-Multiplexed Bus Timing
at 1.8V and V
†
- Non-Multiplexed Microprocessor Port Timing
DD_IO
Sym
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RWH
DHW
RWS
WDS
ADS
CSS
ADS
CSH
ADH
DDR
DHR
AKD
AKH
CSS
t
RWS
at 3.3V and are for design aid only: not guaranteed and not subject to production
t
WDS
Min
15
25
0
5
0
5
5
4
8
L
, with timing corrected to cancel time taken to discharge C
VALID ADDRESS
Typ
10
65
14
t
AKD
‡
VALID READ DATA
VALID WRITE DATA
t
DDR
Max
10
70
20
Advance Information
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
t
t
CSH
RWH
ADH
C
C
Note 1
C
C
Note 1
t
t
AKH
DHW
Test Conditions
t
L
L
L
L
DHR
=30pF
=30pF, R
=30pF
=30pF, R
V
V
V
V
V
V
V
TT
TT
TT
TT
TT
TT
TT
L
L
=1K,
=1K
L
.