smc256bf Numonyx, smc256bf Datasheet - Page 26

• Manufacturer Part Number: smc256bf
• Description: 32-mbyte, 64-mbyte, 128-mbyte, 256-mbyte, 512-mbyte, 1-gbyte, 2-gbyte And 4-gbyte 3.3/5 V Supply Compactflash? Card
• Manufacturer: Numonyx

Command interface
Figure 5.
1. D
Table 19.
1. Numonyx CF does not assert the WAIT signal.
26/90
tsu(D-WEH)
th(D)
tw(WE)
tsu(A)
tsu(CE)
trec(WE)
th(A)
th(CE)
Symbol
IN
signifies data provided by the system to the CompactFlash memory card.
D0 to D15 (D
Address Inputs
–CE2/–CE1
Common memory write waveforms
Common memory write timing
–REG
t
t
t
t
t
t
t
t
–WE
DVWH
WMDX
WLWH
AVGL
ELWL
WMAX
GHAX
GHEH
Symbol
IN
Cycle time mode
IEEE
)
Data setup time from WE
Data hold time
WE pulse width
Address setup time
CE setup time before WE
Write recovery time
Address hold time
CE hold following WE
Parameter
tsu(A)
tsu(CE)
(1)
Min
150
80
30
30
30
20
20
0
250 ns
VALID
tw(WE)
Max
tsu(D-WEH)
Min
50
15
70
15
15
15
15
0
120 ns
DATA IN VALID
Max
Min
40
10
60
10
15
15
15
trec(WE)
0
th(CE)
100 ns
th(A)
th(D)
Max
Min
30
10
55
10
15
10
10
0
80 ns
SMCxxxBF
Max
AI10082b
Unit
ns
ns
ns
ns
ns
ns
ns
ns