IDT72V70190 Integrated Device Technology, IDT72V70190 Datasheet - Page 16

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IDT72V70190

Manufacturer Part Number
IDT72V70190
Description
3.3 Volt Time Slot Interchange Digital Switch 256 X 256
Manufacturer
Integrated Device Technology
Datasheet

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AC ELECTRICAL CHARACTERISTICS - MULTIPLEXED BUS TIMING (INTEL)
NOTE:
1. High Impedance is measured by pulling to the appropriate rail with R
IDT72V70190 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH 256 x 256
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AD0-AD7
ALW
ADS
ADH
ALRD
DDR
CSRW
RW
CSR
DHR
WW
ALWR
CSW
DSW
SWD
DHW
AKD
AKH
D8-D15
(1)
(1)
DTA
ALE
CS
WR
RD
Parameter
ALE Pulse Width
Address Setup from ALE falling
Address Hold from ALE falling
RD Active after ALE falling
Data Setup from DTA LOW on Read
CS Hold after RD/WR
RD Pulse Width (Fast Read)
CS Setup from RD
Data Hold after RD
WR Pulse Width (Fast Write)
WR Delay after ALE falling
CS Setup from WR
Data Setup from WR (Fast Write)
Valid Data Delay on Write (Slow Write)
Data Hold after WR Inactive
Acknowledgment Delay:
Reading/Writing Registers
Reading/Writing Memory
Acknowledgment Hold Time
t
ADS
t
ALW
ADDRESS
t
t
t
ADH
CSR
CSW
t
t
ALRD
ALWR
Figure 11. Multiplexed Bus Timing (Intel Mode)
L
, with timing corrected to cancel time taken to discharge C
Min.
20
45
10
45
20
3
3
3
5
5
0
3
0
5
t
SWD
16
t
AKD
t
RW
t
WW
Typ.
760/750
43/43
122
Max.
t
20
22
DSW
t
DDR
DATA
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
COMMERCIAL TEMPERATURE RANGE
t
t
AKH
L
CSRW
t
t
.
DHR
DHW
C
C
L
L
= 150pF, R
= 150pF, R
Test Conditions
C
C
C
L
L
L
= 150pF
= 150pF
= 150pF
L
L
= 1K
= 1K
5717 drw11

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