AC CHARACTERISTICS
Word/Byte Configuration (BYTE#)
Parameter
Speed Options
JEDEC
Std.
tELFL/ ELFH
tFLQZ
tFHQV
Description
55
60
70
90
Unit
ns
t
CE# to BYTE# Switching Low or High
BYTE# Switching Low to Output HIGH Z
BYTE# Switching High to Output Active
Max
Max
Min
5
16
ns
55
60
70
90
ns
CE#
OE#
BYTE#
tELFL
Data Output
(DQ14–DQ0)
Data Output
(DQ7–DQ0)
BYTE#
DQ14–DQ0
Switching
from word
to byte
Address
Input
DQ15
Output
mode
DQ15/A-1
BYTE#
tFLQZ
tELFH
BYTE#
Switching
from byte
to word
Data Output
(DQ7–DQ0)
Data Output
(DQ14–DQ0)
DQ14–DQ0
DQ15/A-1
mode
Address
Input
DQ15
Output
tFHQV
Figure 16. BYTE# Timings for Read Operations
CE#
The falling edge of the last WE# signal
WE#
BYTE#
tSET
(tAS
)
tHOLD (tAH
)
Note: Refer to the Erase/Program Operations table for tAS and tAH specifications.
Figure 17. BYTE# Timings for Write Operations
38
Am29DL640H
June 7, 2005
SPANSION [ SPANSION ]
