FL164K datasheet(8/90 Pages) CYPRESS

Part #	FL164K

Description	16 Mbit (2 Mbyte), 32 Mbit (4 Mbyte), 64 Mbit (8 Mbyte) 3.0V SPI Flash Memory

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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8 / 90 page

Document Number: 002-00497 Rev. *E

Page 8 of 90

S25FL116K, S25FL132K, S25FL164K

Hardware Interface

Serial Peripheral Interface with Multiple Input / Output (SPI-MIO)

Many memory devices connect to their host system with separate parallel control, address, and data signals that require a large

number of signal connections and larger package size. The large number of connections increase power consumption due to so

many signals switching and the larger package increases cost.

The S25FL1-K reduces the number of signals for connection to the host system by serially transferring all control, address, and data

information over 4 to 6 signals. This reduces the cost of the memory package, reduces signal switching power, and either reduces

the host connection count or frees host connectors for use in providing other features.

The S25FL1-K uses the industry standard single bit Serial Peripheral Interface (SPI) and also supports commands for two bit (Dual)

and four bit (Quad) wide serial transfers. This multiple width interface is called SPI Multi-I/O or SPI-MIO.

2. Signal Descriptions

2.1

Input / Output Summary

Note:

1. A signal name ending with the # symbol is active when low.

Table 2.1 Signal List

Signal Name

Type

Description

SCK

Input

Serial Clock.

CS#

Input

Chip Select.

SI (IO0)

I/O

Serial Input for single bit data commands. IO0 for Dual or Quad commands.

SO (IO1)

I/O

Serial Output for single bit data commands. IO1 for Dual or Quad commands.

WP# (IO2)

I/O

Write Protect in single bit or Dual data commands. IO2 in Quad mode. The signal has an

internal pull-up resistor and may be left unconnected in the host system if not used for Quad

commands.

HOLD# (IO3)

I/O

Hold (pause) serial transfer in single bit or Dual data commands. IO3 in Quad-I/O mode. The

signal has an internal pull-up resistor and may be left unconnected in the host system if not used

for Quad commands.

VCC

Supply

Core and I/O Power Supply.

VSS

Supply

Ground.

NC

Unused

Not Connected. No device internal signal is connected to the package connector nor is there

any future plan to use the connector for a signal. The connection may safely be used for routing

space for a signal on a Printed Circuit Board (PCB). However, any signal connected to an NC

must not have voltage levels higher than VCC.

RFU

Reserved

Reserved for Future Use. No device internal signal is currently connected to the package

connector but there is potential future use of the connector for a signal. It is recommended to not

use RFU connectors for PCB routing channels so that the PCB may take advantage of future

enhanced features in compatible footprint devices.

DNU

Reserved

Do Not Use. A device internal signal may be connected to the package connector. The

connection may be used by Spansion® for test or other purposes and is not intended for

connection to any host system signal. Any DNU signal related function will be inactive when the

signal is at VIL. The signal has an internal pull-down resistor and may be left unconnected in the

host system or may be tied to VSS. Do not use these connections for PCB signal routing

channels. Do not connect any host system signal to this connection.

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