MT8986 Mitel Semiconductor, MT8986 Datasheet - Page 34

• Manufacturer Part Number: MT8986
• Description: CMOS ST-BUS FAMILY Multiple Rate Digital Switch
• Manufacturer: Mitel Semiconductor

MT8986
AC Electrical Characteristics
Voltages are with respect to ground (VSS) unless otherwise stated.
† Timing is over recommended temperature & power supply voltages.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
* High Impedance is measured by pulling to the appropriate rail with R
2-96
10 R/W setup from DS rising
12 Data hold after read
13 DS delay after AS falling
14 Acknowledgement Delay:
15 Acknowledgement Hold Time
11 R/W hold after DS falling
1
2
3
4
5
6
7
8
9
AS pulse width
Address setup from AS falling
Address hold from AS falling
Data setup from DTA Low on Read
CS hold after DS falling
CS setup from DS rising
Data hold after write
Data setup from DS - write
(fast write)
Valid Data Delay on write
(slow write)
Reading from Control & Mode Regs.
Reading/Writing Conn. Memories
Writing Control & Mode Regs.
Characteristics
Reading Data Memory
†
- Motorola Multiplexed Bus Mode
Sym
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DHW
DWS
SWD
RWS
RWH
ASW
ADH
DDR
CSH
DHR
DSH
ADS
CSS
AKD
AKH
Min
80
10
25
60
10
10
10
L
8
9
0
0
8
9
, with timing corrected to cancel time taken to discharge C
300/370
Typ
560
50
47
73
60
‡
730/800
1220
Max
122
125
110
90
95
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
C
R
C
C
R
L
L
L
L
L
L
Test Conditions
=150 pF
=150 pF,
=1 K
=150 pF
=150 pF,
=1 K
L
.