MT29F8G08FACWP Micron Technology, MT29F8G08FACWP Datasheet - Page 9

• Manufacturer Part Number: MT29F8G08FACWP
• Description: NAND Flash Memory
• Manufacturer: Micron Technology

Table 1:
PDF: 09005aef814b01a2 / Source: 09005aef814b01c7
2_4_8gb_nand_m49a__2.fm - Rev. A 3/06 EN
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MT29FxG08
MT29FxG16
R/B#, R/B2#
CE#, CE2#
I/O[15:0]
Symbol
I/O[7:0]
DNU
WE#
WP#
ALE
CLE
PRE
RE#
V
V
NC
CC
SS
Pin/Pad Descriptions
Output
Supply
Supply
Input
Input
Input
Input
Input
Input
Input
Type
I/O
–
–
Address latch enable: During the time ALE is HIGH, address information is
transferred from I/O[7:0] into the on-chip address register upon a LOW-to-HIGH
transition on WE#
should be driven LOW.
Chip enable: Gates transfers between the host system and the NAND Flash device.
Once the device starts a PROGRAM or ERASE operation, the chip enable pin can
be de-asserted.
For the 8Gb configuration, CE# controls the first 4Gb of memory; CE2# controls
the second 4Gb. See “Bus Operation” on page 17 for additional operational
details.
In the 8Gb configuration, R/B# is for the 4Gb of memory enabled by CE#; R/B2# is
for the 4Gb of memory enabled by the CE2#.
Command latch enable: When CLE is HIGH, information is transferred from
I/O[7:0] to the on-chip command register on the rising edge of WE#. When
command information is not being loaded, CLE should be driven LOW.
Power-on auto-read enable: When PRE is HIGH, the power-on AUTO-READ
function is enabled. To disable this function, connect PRE to Vss, or leave it
unconnected. The power-on AUTO-READ function is available on 3V commercial-
temperature devices.
On the MT29F8G08FAC, the PRE function is available only on the 4Gb of memory
controlled by CE#. PRE is not available on the 4Gb of memory controlled by CE2#.
Read enable: Gates transfers from the NAND Flash device to the host system.
Write enable: Gates transfers from the host system to the NAND Flash device.
Write protect: Pin protects against inadvertent PROGRAM and ERASE operations.
All PROGRAM and ERASE operations are disabled when the WP# pin is LOW.
Data inputs/outputs: The bidirectional I/O pins transfer address, data, and
instruction information. Data is output only during READ operations; at other
times the I/O pins are inputs.
Ready/busy: An open-drain, active-LOW output that uses an external pull-up
resistor, the pin is used to indicate when the chip is processing a PROGRAM or
ERASE operation. The pin is also used during a READ operation to indicate when
data is being transferred from the array into the serial data register. Once these
operations have completed, the R/B# returns to the High-Z state.
V
V
No connect: NC pins are not internally connected. These pins can be driven or left
unconnected.
Do not use: These pins must be left unconnected.
CC
SS
: Ground connection.
: Power supply.
.
When address information is not being loaded, the ALE pin
9
2Gb, 4GB, 8Gb: x8, x16 NAND Flash Memory
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Description
General Description
©2005 Micron Technology, Inc. All rights reserved.