MT8986
AC Electrical Characteristics† - Motorola Non-Multiplexed Bus Mode
Voltages are with respect to ground (VSS) unless otherwise stated.
‡
Characteristics
CS Setup from DS rising
R/W Setup from DS rising
Add setup from DS rising
CS hold after DS falling
R/W hold after DS falling
Add hold after DS falling
Data setup from DTA Low on Read
Data hold on read
Sym
tCSS
tRWS
tADS
tCSH
tRWH
tADH
Min
0
Typ
Max
Units Test Conditions
1
2
3
4
5
6
7
8
ns
ns
ns
ns
ns
ns
30
5
0
5
5
C =150 pF
tDDR
tDHR
10
10
ns
ns
L
50
90
C =150 pF,
L
R =1 KΩ
L
9
Data setup on write (fast write)
tDSW
tSWD
20
8
ns
ns
10 Valid Data Delay on write
(slow write)
122
11 Data hold on write
tDHW
tAKD
ns
12 Acknowledgement Delay:
C =150 pF
L
Reading Data Memory
Reading/Writing Conn. Memories
Writing Control & Mode Regs.
560
1220
ns
ns
ns
ns
300/370 730/800
47
70
95
155
Reading from Control & Mode Regs.
13 Acknowledgement Hold Time
tAKH
10
60
110
ns
C =150 pF,
L
R =1 KΩ
L
† 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 RL, with timing corrected to cancel time taken to discharge CL.
2-98
MITEL [ MITEL NETWORKS CORPORATION ]
