MT8924
Preliminary Information
AC Electrical Characteristics - Write Timing
(T
OP
=0 to 70°C; V
DD
=5V5%)
Characteristics
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Write Pulse low width
Write Pulse high width
Repetition Interval between active Write
Pulses
Read high setup time to active Write
Pulse
Read high hold time from active Write
Pulse
Write Pulse rise time
Write Pulse fall time
CS low setup time to WR falling edge
CS low hold time from WR falling edge
CS high setup time to WR rising edge
C/D setup time to Write Pulse end
C/D hold time from Write Pulse end
Input setup time to Write Pulse end
Input hold time from Bus Write Pulse
end
Sym
t
WLWR
t
WHWR
t
REPWR
t
SHRD
t
HHRD
t
RWR
t
FWR
t
SLCSWR
t
HLCSWR
t
SHCSWR
t
SC/DWR
t
HCDWR
t
SDWR
t
HDWR
Min
150
200
500
0
20
60
60
0
0
0
0
130
25
130
25
Typ
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Active case
Active case
Test Conditions
CS high hold time from WR rising edge t
HHCSWR
t
WLWR
WR
t
WHWR
t
SHRD
t
HHRD
t
FWR
t
REPWR
t
RWR
RD
t
SHCSWR
CS
t
HLCSWR
t
SLCSWR
t
SCDWR
C/D
t
SDWR
DIN
t
HDWR
t
HHCSWR
t
HCDWR
Figure 8 - Write Timing Characteristics
8-14
MITEL [ MITEL NETWORKS CORPORATION ]
