EN27LN51208 Datasheet, PDF (4/46 Pages) Eon Silicon Solution Inc. – 512 Megabit (64 M x 8) SLC, 3.3 V NAND Flash Memory

4. Pin Description
EN27LN51208
Symbol
Pin Name
Function
I/O0 – I/O7 (x 8)
CLE
ALE
CE#
RE#
WE#
WP#
R/B#
The I/O pins are used to input command, address and data, and
Data Inputs/Outputs to output data during read operations. The I/O pins float to Hi-Z
when the chip is deselected or when the outputs are disabled.
The CLE input controls the activating path for commands sent to
Command Latch the command register. When active high, commands are latched
Enable
into the command register through the I/O ports on the rising edge
of the WE# signal.
The ALE input controls the activating path for addresses sent to
Address Latch
the internal address registers. Addresses are latched into the
Enable
address register through the I/O ports on the rising edge of WE#
with ALE high.
The CE# input is the device selection control. When the device is
in the Busy state, CE# high is ignored, and the device does not
Chip Enable
return to standby mode in program or erase operation. Regarding
CE# control during read operation, refer to ’Page read’ section of
Device operation.
The RE# input is the serial data-out control, and when it is active
Read Enable
low, it drives the data onto the I/O bus. Data is valid t_REA after the
falling edge of RE# which also increments the internal column
address counter by one.
Write Enable
The WE# input controls writes to the I/O port. Commands,
address and data are latched on the rising edge of the WE# pulse.
The WP# pin provides inadvertent program/erase protection
Write Protect
during power transitions. The internal high voltage generator is
reset when the WP# pin is active low.
The R/B# output indicates the status of the device operation.
When low, it indicates that a program, erase or random read
Ready/Busy Output operation is in process and returns to high state upon completion.
It is an open drain output and does not float to Hi-Z condition
when the chip is deselected or when outputs are disabled.
V_CC
Power Supply
V_CC is the power supply for device.
V_SS
Ground
NC
No Connection
Lead is not internally connected.
Note: Connect all V_CC and V_SS pins of each device to common power supply outputs. Do not leave V_CC
or V_SS disconnected.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2013 Eon Silicon Solution, Inc., www.eonssi.com
Rev. A, Issue Date: 2013/09/30