MD3331-D32-V3Q18 M-Systems Inc., MD3331-D32-V3Q18 Datasheet - Page 60

• Manufacturer Part Number: MD3331-D32-V3Q18
• Description: Mobile Diskonchip Plus 128Mbits 1.8V I/o
• Manufacturer: M-Systems Inc.

10.4.4 Write Cycle Timing Multiplexed Interface
Note: When designing your board to support also DiskOnChip Plus 32MB or 64MB devices, it is not possible to use VCC=2.5-3.6V, as these
60
tsu(AVD-WE)
Trec(WE-AVD)
devices only support VCC=2.7-3.6V.
tsu(CE0)
tho(CE0)
tho(AVD)
tsu(AVD)
Tw(AVD)
tho(CE1)
tsu(CE1)
trec(WE)
Symbol
tw(WE)
Tsu(D)
Tho(D)
Twcyc
1
2
1
AD[15:0]
Table 20: Multiplexed Interface Write Cycle Parameters (VCC=2.5V-3.6V)
Address to AVD#
Address to AVD#
AVD# low pulse width
AVD#
WE#
WE# asserted width (RAM)
WE# asserted width (all other addresses)
Write Cycle Time
CE#
WE#
OE# or WE#
CE#
WE#
D to WE#
WE#
AVD#
WE#
OE#
CE#
to WE#
to WE#
to AVD#
to CE#
to start of next cycle
to D hold time
to WE#
T
Figure 23: Multiplexed Interface Write Cycle Timing
HO
T
SU
(CE1)
setup time (RAM)
(AVD)
Description
to CE#
setup time
hold time
or OE#
ADDR
Tw(AVD)
setup time
in next cycle
setup time
hold time
T
T
T
SU
SU
Data Sheet, Rev. 1.7
HO
hold time
3
(AVD-WE)
(CE0)
(AVD)
setup time
T
WCYC
Tw(WE)
DATA
T
SU
VCC=2.5-3.6V
VCCQ=VCC
Min
12
29
51
50
83
20
29
(D)
—
—
T
5
7
4
6
6
0
HO
(CE0)
Mobile DiskOnChip Plus 16/32MByte 1.8V I/O
Max
T
T
HO
T
REC
REC
(D)
T
(WE)
SU
(WE-AVD)
(CE1)
VCCQ=1.65-1.9V
VCC=2.5-3.6V
Min
12
30
50
49
83
20
29
NEXT ADDR
—
—
4
5
7
6
6
0
Max
95-SR-000-10-8L
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns