CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION 35
4.3.11 I/O Output (Write) Timing Specification
Table 4-8 I/O Write Timing
Item Symbol IEEE Symbol Min ns. Max ns.
Data Setup before IOWR tsu(IOWR) tDVIWH 60
Data Hold following IOWR th(IOWR) tlWHDX 30
IOWR Width Time twIOWR tlWLIWH 165
Address Setup before IOWR tsuA(IOWR) tAVIWL 70
Address Hold following IOWR thA(IOWR) tlWHAX 20
CE Setup before IOWR tsuCE(IOWR) tELIWL 5
CE Hold following IOWR thCE(IOWR) tlWHEH 20
REG Setup before IOWR tsuREG(IOWR) tRGLIWL 5
REG Hold following IOWR thREG(IOWR) tlWHRGH 0
IOIS16 Delay Falling from Address tdfIOIS16(ADR) tAVISL 35
IOIS16 Delay Rising from Address tdrIOIS16(ADR) tAVISH 35
Wait Delay Falling from IOWR tdWT(IOWR) tlWLWTL 35
IOWR high from Wait high tdrIOWR(WT) tWTJIWH 0
Wait Width Time (Default Speed)
(Set Feature Speed <68 mA.)
tw(WT) tWTLWTH 350
700
Figure 4-6 I/O Write 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 -IOWR high is 0 nsec, but minimum -IOWR width must still be met.
Din signifies data provided by the system to the CompactFlash Memory Card.
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