CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION34
4.3.10 I/O Input (Read) Timing Specification
Table 4-7 I/O Read Timing
Item Symbol IEEE Symbol Min ns. Max ns.
Data Delay after IORD td(IORD) tlGLQV 100
Data Hold following IORD th(IORD) tlGHQX 0
IORD Width Time tw(IORD) tlGLIGH 165
Address Setup before IORD tsuA(IORD) tAVIGL 70
Address Hold following IORD thA(IORD) tlGHAX 20
CE Setup before IORD tsuCE(IORD) tELIGL 5
CE Hold following IORD thCE(IORD) tlGHEH 20
REG Setup before IORD tsuREG(IORD) tRGLIGL 5
REG Hold following IORD thREG(IORD) tlGHRGH 0
INPACK Delay Falling from IORD tdfINPACK(IORD) tlGLIAL 0 45
INPACK Delay Rising from IORD tdrINPACK(IORD) tlGHIAH 45
IOIS16 Delay Falling from Address tdfIOIS16(ADR) tAVISL 35
IOIS16 Delay Rising from Address tdrIOIS16(ADR) tAVISH 35
Wait Delay Falling from IORD tdWT(IORD) tlGLWTL 35
Data Delay from Wait Rising td(WT) tWTHQV 0
Wait Width Time (Default Speed) tw(WT) tWTLWTH 350
Figure 4-5 I/O Read Timing Diagram
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.
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