MT8931C
AC Electrical Characteristics† - Motorola Bus Interface Timing (Ref. Figure 26)
‡
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
2
3
4
5
6
Chip select setup time
Chip select hold time
Address strobe pulse width
Data strobe setup time
Data strobe hold
tCSS
tCSH
tASW
tDSS
tDSH
tDSW
10
10
50
20
20
ns
ns
ns
ns
ns
Data strobe pulse width
- Write
- Read
100
240
ns
ns
7
8
9
Read/Write setup time
Read/Write hold time
Address setup time
tRWS
tRWH
tADS
tADH
tDWS
tDHW
tDOD
tDHR
40
10
20
20
35
30
ns
ns
ns
ns
ns
ns
ns
ns
10 Address hold time
11 Data setup time - Write
12 Data hold time - Write
13 Data output delay
240
90
50 pF load
50 pF load
14 Data hold time - Read
25
† Characteristics are for clocked operation over the ranges of recommended operating temperature and supply voltage.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
tCSH
tCSS
VIH
VIL
CS
tASW
VIH
VIL
AS
DS
tDSS
tDSH
VIH
VIL
tDSW
tRWS
tRWH
VIH
VIL
R/W
tADS
tADH
tDWS
tDHW
AD0
-AD7
(Write)
VIH
VIL
Address
Data Input
tDHR
tDOD
tADH
tADS
VI/OH
VI/OL
AD0
-AD7
(Read)
Address
Data Output
Figure 26 - Motorola Bus Interface Timing
9-105
MITEL [ MITEL NETWORKS CORPORATION ]
