SMCXXXAF Datasheet, PDF (25/82 Pages) Numonyx B.V – 32 Mbyte, 64 Mbyte, 128 Mbyte, 256 Mbyte and 512 Mbyte 3.3 V / 5 V supply CompactFlash™ card

SMCxxxAF
Command interface
Figure 5. Common memory Write timing diagram
Address Inputs
–REG
tsu(A)
VALID
th(A)
–CE2/–CE1
tsu(CE)
tw(WE)
trec(WE)
th(CE)
–WE
D0 to D15 (D_IN)
tsu(D-WEH)
th(D)
DATA IN VALID
1. D_IN signifies data provided by the system to the CompactFlash memory card.
Table 19. Common memory Write timing⁽¹⁾
Cycle time mode
Symbol
IEEE symbol
Parameter
Min
tsu(D-WEH)
t_DVWH
Data setup time from WE
80
th(D)
t_WMDX
Data hold time
30
tw(WE)
t_WLWH
WE pulse width
150
tsu(A)
t_AVGL
Address setup time
30
tsu(CE)
t_ELWL
CE setup time before WE
0
trec(WE)
t_WMAX
Write recovery time
30
th(A)
t_GHAX
Address hold time
20
th(CE)
t_GHEH
CE hold following WE
20
1. ST CF does not assert the WAIT signal.
AI10082b
250 ns
Max Unit
ns
ns
ns
ns
ns
ns
ns
ns
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