MT90823AG Zarlink Semiconductor, Inc., MT90823AG Datasheet - Page 31

• Manufacturer Part Number: MT90823AG
• Description: Switch Fabric, 131.072Mbps Switching Bandwidth, 3.3V Supply Voltage, 120-PBGA
• Manufacturer: Zarlink Semiconductor, Inc.

AC Electrical Characteristics - Motorola Non-Multiplexed Bus Mode
10 Valid Data Delay on write (slow write)
11 Data hold on write
12 Acknowledgment Delay:
13 Acknowledgment Hold Time
Note:
1
2
3
4
5
6
7
8
9
1. High Impedance is measured by pulling to the appropriate rail with R
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
Data setup on write (fast write)
DTA
R/W
A0-A7
AD0-AD7
D8-D15
READ
AD0-AD7
D8-D15
WRITE
DS
Reading/Writing Registers
Reading/Writing Memory @ 2Mb/s
CS
Characteristics
Figure 18 - Motorola Non-Multiplexed Bus Timing
@ 4Mb/s
@ 8Mb/s
Sym
t
t
t
t
t
t
t
t
t
t
t
t
t
RWH
DHW
RWS
DSW
SWD
t
CSS
ADS
CSH
ADH
DDR
DHR
AKD
AKH
t
ADS
CSS
t
RWS
Min
10
10
0
2
0
2
2
2
0
5
t
SWD
L
, with timing corrected to cancel time taken to discharge C
VALID ADDRESS
Typ
t
AKD
t
DDR
760/750
400/390
220/210
VALID READ DATA
VALID WRITE DATA
43/43
Max
122
t
20
22
DSW
CMOS
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
t
CSH
DHW
t
DHR
t
t
RWH
ADH
C
C
Note 1
C
C
C
C
C
Note 1
t
AKH
L
L
L
L
L
L
L
Test Conditions
=150pF
=150pF, R
=150pF
=150pF
=150pF
=150pF
=150pF, R
MT90823
V
V
V
V
V
V
V
CT
CT
CT
CT
CT
CT
CT
L
L
=1K,
=1K
L
.
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