mt90868ag2 Zarlink Semiconductor, mt90868ag2 Datasheet - Page 64

• Manufacturer Part Number: mt90868ag2
• Description: 32,768 X 8,192 Channels High Bandwidth Digital Switch With Up To 128 Streams On Backplane And 128 Streams On Local And Data Rates From 8 To 32 Mbps
• Manufacturer: Zarlink Semiconductor

† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25°C, V
Note 1:
64
AC Electrical Characteristics
10 Data hold on write
11 Acknowledgment Delay
12 Acknowledgment Hold Time
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
High Impedance is measured by pulling to the appropriate rail with R
C
R/W
DTA
A0-A15
D0-D15
READ
D0-D15
WRITE
DS
CS
L
.
Characteristics
DD_CORE
at 1.8V and V
Figure 23 - Motorola Non-Multiplexed Bus Timing
†
DD_IO
- Non-Multiplexed Microprocessor Port Timing
at 3.3V and are for design aid only: not guaranteed and not subject to production testing.
Sym
t
t
t
t
Zarlink Semiconductor Inc.
t
t
t
t
t
t
t
t
DHW
RWS
RWH
WDS
CSH
ADH
DDR
DHR
CSS
ADS
AKD
AKH
t
t
ADS
CSS
t
RWS
t
WDS
Min
15
25
0
5
0
5
5
4
8
Typ
L
10
65
14
, with timing corrected to cancel time taken to discharge
VALID ADDRESS
t
‡
AKD
VALID READ DATA
VALID WRITE DATA
Max
t
10
70
20
DDR
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
t
t
C
C
Note 1
C
C
Note 1
CSH
ADH
RWH
Test Conditions
L
L
L
L
t
t
=30pF
=30pF, R
=30pF
=30pF, R
AKH
DHW
t
DHR
Data Sheet
V
V
V
V
V
V
L
L
V
TT
=1K,
TT
=1K
TT
TT
TT
TT
TT