PCMCIA Flash Memory Card
SRV Series
Write Timing Parameters
5.0V
Min
3.3V
Min
SYM
Parameter
Max
Max
Unit
(PCMCIA)
tCW
Write Cycle Time
150
80
250
150
30
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tw(WE)
Write Pulse Width
tsu(A)
Address Setup Time
20
tsu(A-WEH)
tsu(CE-WEH)
tsu(D-WEH)
th(D)
Address Setup Time for WE#
Card Enable Setup Time for WE#
Data Setup Time for WE#
Data Hold Time
100
100
50
180
180
80
20
30
trec(WE)
tdis(WE)
tdis(OE)
Write Recover Time
20
30
Output Disable Time from WE#
Output Disable Time from OE#
Output Enable Time from WE#
Output Enable Time from OE#
Output Enable Setup from WE#
Output Enable Hold from WE#
Card Enable Setup Time from OE#
Card Enable Hold Time
75
75
100
100
ten(WE)
5
5
5
5
tdis(OE)
tsu(OE-WE)
th(OE-WE)
tsu(CE)
10
10
0
10
10
0
th(CE)
20
20
Note: AC timing diagrams and characteristics are guaranteed to meet or exceed PCMCIA 2.1 specifications.
Write Timing Diagram
tc(W )
A [2 5 ::0 ], /R E G
ts u (A -W E H )
tre c (W E )
th (C E )
ts u (C E -W E H )
tsu (C E )
/C E 1 , /C E 2
N O T E
1
N O T E
1
/O E
th (O E -W E )
th (D )
tw (W E )
ts u (A )
/W E
tsu (O E -W E )
ts u (D -W E H )
D [1 5 ::0 ](D in )
N O T E
2
D A T A IN P U T
td is (W E )
td is(O E )
te n (O E )
te n (W E )
N O T E
2
D [1 5 ::0 ](D o u t)
Notes:
1. Signal may be high or low in this area.
2. When the data I/O pins are in the output state, no signals shall be applied to the data pins (D15 - D0) by the host
system.
7
June 2000 Rev. 1 - ECO #12896
PC Card Products