AM29BDS640G SPANSION [SPANSION], AM29BDS640G Datasheet - Page 12
![no-image](/images/no-image-200.jpg)
AM29BDS640G
Manufacturer Part Number
AM29BDS640G
Description
64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
Manufacturer
SPANSION [SPANSION]
Datasheet
1.AM29BDS640G.pdf
(78 pages)
- Current page: 12 of 78
- Download datasheet (2Mb)
Input/Output Descriptions
Logic Symbol
10
A21-A0
DQ15-DQ0
CE#
OE#
WE#
V
V
V
V
NC
RDY
CLK
AVD#
RESET#
WP#
ACC
CC
IO
SS
SSIO
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
22
Address inputs
Data input/output
Chip Enable input. Asynchronous relative to CLK for
the Burst mode.
Output Enable input. Asynchronous relative to CLK
for the Burst mode.
Write Enable input.
Device Power Supply
(1.65 – 1.95 V).
Input & Output Buffer Power Supply (either 1.65 –
1.95 V or 2.7 – 3.15 V).
Ground
Output Buffer Ground
No Connect; not connected internally
Ready output; indicates the status of the Burst read.
Low = data not valid at expected time. High = data
valid.
CLK is not required in asynchronous mode. In burst
mode, after the initial word is output, subsequent
active edges of CLK increment the internal address
counter.
Address Valid input. Indicates to device that the valid
address is present on the address inputs (A21–A0).
Low = for asynchronous mode, indicates valid
address; for burst mode, causes starting address to
be latched.
High = device ignores address inputs
Hardware reset input. Low = device resets and
returns to reading array data
Hardware write protect input. At V
program and erase functions in the two outermost
sectors. Should be at V
At V
places device in unlock bypass mode. At V
sectors. Should be at V
WP#
ACC
CE#
OE#
A21–A0
WE#
RESET#
AVD#
CLK
ID
Am29BDS640G
, accelerates programming; automatically
P r e l i m i n a r y
DQ15–DQ0
RDY
IH
IH
for all other conditions.
for all other conditions.
16
IL
, disables
IL
, locks all
25903C1 October 1, 2003
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