e28f016xd Intel Corporation, e28f016xd Datasheet - Page 13

• Manufacturer Part Number: e28f016xd
• Description: 16-mbit 1 Mbit X 16 Dram-interface Flash Memory
• Manufacturer: Intel Corporation

E
4.0 BUS OPERATIONS, COMMANDS AND STATUS REGISTER DEFINITIONS
4.1 Bus Operations
NOTES:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Row Address Latch
Column Address Latch
Read
Output Disable
Standby
Deep Power-Down
Manufacturer ID
Device ID
Write
pins depending on whether or not OE# is active.
RY/BY# output is open drain. When the WSM is ready, erase is suspended or the device is in deep power-down mode,
RY/BY# will be at V
is in progress.
RP# at GND ± 0.2V ensures the lowest deep power-down current.
A
All other addresses (row and column) should be set to zero.
Commands for erase, data program, or lock-block operations can only be completed successfully when V
V
While the WSM is running, RY/BY# stays at V
not busy or in erase suspend mode.
RY/BY# may be at V
program operation).
The 28F016XD shares an identical device identifier with the 28F016XS.
Row (upper) addresses are latched via inputs A
inputs A
X can be V
0
PP
(latched by CAS#) at V
= V
PPH2
0-9
on the falling edge of CAS#. Row addresses must be latched before column addresses are latched.
IH
Mode
.
or V
IL
OH
for address or control pins except for RY/BY#, which is either V
OL
if it is tied to V
while the WSM is busy performing various operations (for example, a Status Register read during a
IL
provides the Manufacturer ID code. A
Notes
1,2,9
1,2,9
1,2,7
1,6,7
1,6,7
1,5,6
1,3
4,8
4,8
CC
through a resistor. RY/BY# at V
OL
RP#
V
V
V
V
V
V
V
V
V
0-9
until all operations are complete. RY/BY# goes to V
IH
IH
IH
IH
IH
IH
IH
IH
IL
on the falling edge of RAS#. Column (lower) addresses are latched via
RAS#
V
V
V
V
V
V
V
X
IL
IL
IL
IH
IL
IL
IL
0
CAS#
(latched by CAS#) at V
V
V
V
V
V
V
V
X
IH
IH
IL
IL
IL
IL
IL
OH
is independent of OE# while a WSM operation
OE#
V
V
V
V
X
X
X
X
X
IL
IH
IL
IL
OL
28F016XD FLASH MEMORY
or V
WE#
V
V
V
V
V
X
X
X
X
IH
IH
IH
IH
IL
OH
IH
provides the Device ID code.
, or High Z or D
DQ
66A8H
High Z
High Z
High Z
0089H
D
D
OUT
OH
X
X
0–15
IN
when the WSM is
PP
= V
OUT
RY/BY#
PPH1
V
V
V
for data
X
X
X
X
X
X
OH
OH
OH
or
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