K9F2G08R0A View Datasheet(PDF) - Samsung

Part Name

Description

View to exact match

K9F2G08R0A

256M x 8 Bit NAND Flash Memory

Samsung 

K9F2G08R0A

K9F2G08U0A

FLASH MEMORY

PIN DESCRIPTION

Pin Name

I/O0 ~ I/O7

Pin Function

DATA INPUTS/OUTPUTS

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.

COMMAND LATCH ENABLE

CLE

The CLE input controls the activating path for commands sent to the command register. When active high,

commands are latched into the command register through the I/O ports on the rising edge of the WE signal.

ADDRESS LATCH ENABLE

ALE

The ALE input controls the activating path for address to the internal address registers. Addresses are

latched on the rising edge of WE with ALE high.

CHIP ENABLE

CE

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 return to standby mode in program or erase operation.

READ ENABLE

RE

The RE input is the serial data-out control, and when active 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.

WRITE ENABLE

WE

The WE input controls writes to the I/O port. Commands, address and data are latched on the rising edge of

the WE pulse.

WRITE PROTECT

WP

The WP pin provides inadvertent program/erase protection during power transitions. The internal high volt-

age generator is reset when the WP pin is active low.

READY/BUSY OUTPUT

R/B

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 process 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.

Vcc

POWER

VCC is the power supply for device.

Vss

GROUND

N.C

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.

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