MT90863 Mitel Networks Corporation, MT90863 Datasheet - Page 31

• Manufacturer Part Number: MT90863
• Description: 3V Rate Conversion Digital Switch
• Manufacturer: Mitel Networks Corporation

Advance Information
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)
R/W
DTA
Reading registers
Reading Memory
A0-A7
D0-D15
READ
D0-D15
WRITE
DS
CS
Reading/writing registers
Reading/writing memory
Characteristics
Figure 16 - Motorola Non-Multiplexed Bus Timing
t
t
t
t
t
t
ADS
t
CSS
t
DDR_MEM
DSW_REG
DDR_REG
AKD_MEM
AKD_REG
RWS
Sym
t
t
t
t
t
t
t
t
t
t
RWH
DHW
RWS
SWD
CSS
ADS
CSH
ADH
DHR
AKH
t
SWD
L
, with timing corrected to cancel time taken to discharge C
Min
5
VALID ADDRESS
t
AKD
t
DDR
Typ
10
10
10
VALID READ DATA
0
VALID WRITE DATA
t
DSW
Max
440
150
470
16
11
40
17
5
6
2
t
t
CSH
DHW
t
DHR
t
t
RWH
ADH
Units
t
AKH
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MT90863
C
C
R
Note 1
C
C
R
Note
Conditions
L
L
L
L
L
L
=50pF
=50pF,
=1K
=50pF
=50pF,
=1K,
V
V
V
V
V
V
V
TT
TT
TT
TT
Test
TT
TT
TT
L
.
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