ESMT
F59D1G81LB / F59D1G161LB (2M)
Pin Description
Symbol
Pin Name
Functions
The I/O pins are used to input command, address and data, and to output data
during read operations. The I/O pins float to high-z when the chip is deselected
or when the outputs are disabled.
I/O0~I/O7 (x8)
Data Inputs / Outputs
I/O0~I/O15 (x16)
The CLE input controls the activating path for commands sent to the internal
command registers. Commands are latched into the command register
through the I/O ports on the rising edge of the WE# signal with CLE high.
Command Latch
Enable
CLE
ALE
The ALE input controls the activating path for addresses sent to the internal
Address Latch Enable address registers. Addresses are latched into the address register through the
I/O ports on the rising edge of WE# with ALE high.
The RE# input is the device selection control. When the device is in the Busy
state, RE# high is ignored, and the device does not return to standby mode in
program or erase operation. Regarding CE# control during read operation,
CE#
Chip Enable
refer to ’Page read’ section of Device operation.
When LOCK is HIGH during power-up, the BLOCK LOCK function is enabled.
LOCK
To disable BLOCK LOCK, connect LOCK to VSS during power-up, or leave it
unconnected (internal pull-doyn).
LOCK
The RE# input is the serial data-out control, and when it is active low, it
drives the data onto the I/O bus. Data is valid tREA after the falling edge of
RE# which also increments the internal column address counter by one.
RE#
WE#
WP#
Read Enable
Write Enable
Write Protect
The WE# input controls writes to the I/O ports. Commands, address and data
are latched on the rising edge of the WE# pulse.
TheWP# pin provides inadvertent write/erase protection 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 operation is in progress and
returns to high state upon completion. It is an open drain output and does not
float to high-z condition when the chip is deselected or when outputs are
disabled.
R/B#
Ready / Busy Output
VCC
VSS
NC
Power
VCC is the power supply for device.
Ground
No Connection
Lead is not internally connected.
Note: Connect all VCC and VSS pins of each device to common power supply outputs. Do not leave VCC or VSS disconnected.
Elite Semiconductor Memory Technology Inc.
Publication Date: Aug. 2018
Revision: 1.0 6/53