MT90823 Zarlink Semiconductor, MT90823 Datasheet - Page 35

• Manufacturer Part Number: MT90823
• Description: 3V Large Digital Switch
• Manufacturer: Zarlink Semiconductor

Data Sheet
AC Electrical Characteristics - Multiplexed Bus Timing (Mode 1)
1. High Impedance is measured by pulling to the appropriate rail with R
10 WR pulse width (fast write)
12 CS setup from WR
13 Data setup from WR (fast write)
14 Valid Data Delay on write (slow write)
15 Data hold after WR inactive
16 Acknowledgment Delay:
17 Acknowledgment Hold Time
11 WR delay after ALE falling
Note:
1
2
3
4
5
6
7
8
9
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
Reading/Writing Registers
Reading/Writing Memory @ 2Mb/s
Characteristics
@ 4Mb/s
@ 8Mb/s
t
t
t
t
Sym
CSRW
t
t
t
t
t
t
t
t
ALWR
t
ALRD
t
t
t
t
DHW
CSW
DSW
SWD
Zarlink Semiconductor Inc.
ALW
ADH
DDR
CSR
DHR
ADS
AKD
AKH
WW
RW
Min
20
45
10
45
20
L
3
3
3
5
5
0
3
0
5
, with timing corrected to cancel time taken to discharge C
Typ
760/750
400/390
220/210
43/43
Max
122
20
22
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
C
Note 1.
C
C
C
C
C
Note 1.
Test Conditions
L
L
L
L
L
L
L
=150pF
=150pF, R
=150pF
=150pF
=150pF
=150pF
=150pF, R
MT90823
L
.
L
L
=1K,
=1K,
35