SanDisk SDCFH-004G Product Manual - Page 30

Table 3-10, Common Memory Read Timing Specification, Table 3-11, Common, and Attribute Memory Write

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Interface Description SanDisk CompactFlash Card OEM Product Manual Table 3-10 Common Memory Read Timing Specification Speed Version Item Address Hold Time Card Enable Setup Time Card Enable Hold Time Symbol th (A) tsu(CE) th (CE) IEEE Symbol tGHAX tELGL tGHEH a. The -REG signal timing is identical to address signal timing 100 ns Min. 15 0 15 Max. ------- 3.3.5 Common and Attribute Memory Write Timing The write timing specifications for Common and Attribute memory are the same. All timings measured at the CompactFlash Memory Card. Skews and delays from the system driver/receiver to the card must be accounted for by the system NOTE: SanDisk CompactFlash Memory cards do not assert the -WAIT signal. Table 3-11 Common and Attribute Memory Write Timing Specification Speed Version Write Cycle Time Write Pulse Width Address Setup Timea Address Setup Time for -WEa Card Enable Setup Time for -WE Data Setup Time form -WE Data Hold Time Write Recover Time 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 Card Enable Hold Time Symbol tc (W) tw (WE) tsu (A) tsu (A-WEH) tsu(CE-WEH) tsu(D-WEH) th (D) trec (WE) tdis (WE) tdis (OE) ten (WE) ten (OE) tsu(OE-WE) th(OE-WE) tsu (CE) th (CE) IEEE Symbol tAVAV tWLWH tAVWL tAVWH tELWH tDVWH tWMDX tWMAX tWLQZ tGHQZ tWHQNZ tGLQNZ tGHWL tWHGL tELWL tGHEH a. The -REG signal timing is identical to address signal timing. 100 ns Min. 100 60 10 70 70 40 15 15 ----- 5 5 10 10 0 15 Max 50 50 02/07, Rev. 12.0 3-12 © 2007 SanDisk Corporation

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Interface Description
SanDisk CompactFlash Card OEM Product Manual
Table 3-10
Common Memory Read Timing Specification
100 ns
Speed Version Item
Symbol
IEEE Symbol
Address Hold Time
t
h
(A)
15
t
GHAX
Card Enable Setup Time
t
su
(CE)
0
t
ELGL
Card Enable Hold Time
t
h
(CE)
15
t
GHEH
Min.
Max.
a. The -REG signal timing is identical to address signal timing
3.3.5
Common and Attribute Memory Write Timing
The write timing specifications for Common and Attribute memory are the same.
All timings measured at the CompactFlash Memory Card. Skews and delays from the system
driver/receiver to the card must be accounted for by the system
NOTE
:
SanDisk CompactFlash Memory cards do not assert the -WAIT
signal.
Table 3-11
Common
and Attribute Memory Write Timing Specification
100 ns
Speed Version
Symbol
IEEE Symbol
Write Cycle Time
t
c
(W)
100
t
AVAV
Write Pulse Width
t
w
(WE)
60
t
WLWH
t
su
(A)
10
t
AVWL
Address Setup Time
a
t
su
(A-WEH)
70
t
AVWH
Address Setup Time for -WE
a
Card Enable Setup Time for -WE
t
su
(CE-WEH)
70
t
ELWH
Data Setup Time form -WE
t
su
(D-WEH)
40
t
DVWH
Data Hold Time
t
h
(D)
15
t
WMDX
Write Recover Time
t
rec
(WE)
15
t
WMAX
Output Disable Time from -WE
50
t
dis
(WE)
t
WLQZ
Output Disable Time from -OE
t
dis
(OE)
50
t
GHQZ
Output Enable Time from -WE
t
en
(WE)
5
t
WHQNZ
Output Enable Time from -OE
t
en
(OE)
5
t
GLQNZ
Output Enable Setup from -WE
t
su
(OE-WE)
10
t
GHWL
t
h
(OE-WE)
10
Output Enable Hold from -WE
t
WHGL
Card Enable Setup Time
t
su
(CE)
0
t
ELWL
Card Enable Hold Time
t
h
(CE)
15
t
GHEH
Min.
Max.
a. The -REG signal timing is identical to address signal timing.
02/07, Rev. 12.0
3-12
© 2007 SanDisk Corporation