mt8981de1 Zarlink Semiconductor, mt8981de1 Datasheet - Page 16

• Manufacturer Part Number: mt8981de1
• Description: Digital Switch
• Manufacturer: Zarlink Semiconductor

AC Electrical Characteristics
† Timing is over recommended temperature & power supply voltages.
‡ Typical figures are at 25
* High Impedance is measured by pulling to the appropriate rail with R
Note 1:
10
12
13
11
1
2
3
4
5
6
7
8
9
Chip Select Setup Time
Read/Write Setup Time
Address Setup Time
Acknowledgement Delay
Fast Write Data Setup Time
Slow Write Data Delay
Read Data Setup Time
Data Hold Time
Read Data To High Impedance
Chip Select Hold Time
Read/Write Hold Time
Address Hold Time
Acknowledgement Hold Time
Processor accesses are dependent on the C4i clock, and so some timings are expressed as multiples of the C4i clock period.
Characteristics
°
C and are for design aid only: not guaranteed and not subject to production testing.
STi0
to
STi3
†
C4i
Write
- Processor Bus (Figures 11 and 17)
Slow
Read
Fast
2.0V
0.8V
2.0V
0.8V
Sym.
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SWD
RWH
RWS
AKD
AKD
DHT
DHT
ADH
AKH
ADS
RDS
RDZ
CSH
CSS
FWS
Figure 16 - Serial Inputs
Zarlink Semiconductor Inc.
MT8981D
Min.
L
Bit Cell Boundaries
2.7
20
25
25
20
20
20
10
, with timing corrected to cancel time taken to discharge C
0
0
0
16
Typ.
2.0
40
10
50
60
0
5
5
‡
Max.
100
t
7.2
1.7
0.5
SIS
90
80
cycles
cycles
cycles
Units
t
SIH
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
C4i cycles
C4i cycles
C4i cycles
R
R
R
L
L
L
L
=150 pF
=1 KΩ*, C
=1 KΩ*, C
=1 KΩ*, C
Test Conditions
L
1
1
1
.
, C
L
L
L
L
=150 pF
=150 pF
=150 pF
= 150 pF
Data Sheet