I/O Input (Read) Timing Specification - SanDisk CompactFlash Product Manual

CompactFlash Memory Card Product Manual
4.3.10

I/O Input (Read) Timing Specification

Table 4-7 I/O Read Timing
Item
Data Delay after IORD
Data Hold following IORD
IORD Width Time
Address Setup before IORD
Address Hold following IORD
CE Setup before IORD
CE Hold following IORD
REG Setup before IORD
REG Hold following IORD
INPACK Delay Falling from IORD
INPACK Delay Rising from IORD
IOIS16 Delay Falling from Address
IOIS16 Delay Rising from Address
Wait Delay Falling from IORD
Data Delay from Wait Rising
Wait Width Time (Default Speed)
Notes: The maximum load on -WAIT, -INPACK and -IOIS16 is 1 LSTTL with 50pF total load. All times are in
nanoseconds.
Minimum time from -WAIT high to -IORD high is 0 nsec, but minimum -IORD width must still be met.
Dout signifies data provided by the CompactFlash Memory Card to the system.
34
Symbol
td(IORD)
th(IORD)
tw(IORD)
tsuA(IORD)
thA(IORD)
tsuCE(IORD)
thCE(IORD)
tsuREG(IORD)
thREG(IORD)
tdfINPACK(IORD)
tdrINPACK(IORD)
tdfIOIS16(ADR)
tdrIOIS16(ADR)
tdWT(IORD)
td(WT)
tw(WT)
Figure 4-5 I/O Read Timing Diagram
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION
IEEE Symbol Min ns.
tlGLQV
tlGHQX
tlGLIGH 165
tAVIGL
tlGHAX
tELIGL
tlGHEH
tRGLIGL
tlGHRGH
tlGLIAL
tlGHIAH
tAVISL
tAVISH
tlGLWTL
tWTHQV
tWTLWTH
Max ns.
100
0
70
20
5
20
5
0
0 45
45
35
35
35
0
350