IDT72V90823 Integrated Device Technology, IDT72V90823 Datasheet - Page 25

• Manufacturer Part Number: IDT72V90823
• Description: 3.3 Volt Time Slot Interchange Digital Switch
• Manufacturer: Integrated Device Technology

AC ELECTRICAL CHARACTERISTICS-MOTOROLA NON-MULTIPLEXED BUS MODE
NOTE:
1. High Impedance is measured by pulling to the appropriate rail with R
IDT72V90823 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 2,048 x 2,048
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
DDR
DHR
CSS
RWS
ADS
CSH
RWH
ADH
DSW
SWD
DHW
AKD
AKH
AD0-AD7/
D8-D15
(1)
A0-A7
R/W
DTA
CS
DS
Parameter
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)
Valid Data Delay on Write (Slow Write)
Data Hold on Write
Acknowledgment Delay:
Reading/Writing Registers
Reading/Writing Memory 
Acknowledgment Hold Time
t
RWS
t
t
ADS
CSS
Figure 14. Motorola Non-Multiplexed Asyncronous Bus Timing
VALID WRITE ADDRESS
t
AKD
t
SWD
@ 2.048 Mb/s
@ 4.096 Mb/s
@ 8.192 Mb/s
t
DSW
VALID WRITE
DATA
L
, with timing corrected to cancel time taken to discharge C
t
t
CSH
ADH
t
DHW
Min.
t
t
10
10
RWH
AKH
0
2
0
2
2
2
5
5
25

Typ.
760/750
400/390
220/210
43/43
122
Max.
20
22
t
RWS
t
t
CSS
ADS
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
VALID READ ADDRESS
COMMERCIAL TEMPERATURE RANGE
t
AKD
L
.
t
DDR
VALID READ DATA
C
C
L
L
= 150pF, R
= 150pF, R
Test Conditions
C
C
C
C
C
L
L
L
L
L
= 150pF
= 150pF
= 150pF
= 150pF
= 150pF
t
t
CSH
ADH
L
L
t
t
DHR
= 1K
= 1K
RWH
t
AKH
5712 drw17