S25FL064A Meet Spansion Inc., S25FL064A Datasheet - Page 8
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S25FL064A
Manufacturer Part Number
S25FL064A
Description
64 Megabit Cmos 3.0 Volt Flash Memory With 50 Mhz Spi Bus Interface
Manufacturer
Meet Spansion Inc.
Datasheet
1.S25FL064A.pdf
(36 pages)
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3. Input/Output Descriptions
4. Logic Symbol
June 29, 2007 S25FL064A_00_C3
HOLD#
Signal
GND
SCK
CS#
V
SO
W#
SI
CC
Output
Input
Input
Input
Input
Input
Input
Input
I/O
Signal Data Output: Transfers data serially out of the device on the falling edge of SCK.
Serial Data Input: Transfers data serially into the device. Device latches commands,
addresses, and program data on SI on the rising edge of SCK.
Serial Clock: Provides serial interface timing. Latches commands, addresses, and data on SI on
rising edge of SCK. Triggers output on SO after the falling edge of SCK.
Chip Select: Places device in active power mode when driven low. Deselects device and places
SO at high impedance when high. After power-up, device requires a falling edge on CS# before
any command is written. Device is in standby mode when a program, erase, or Write Status
Register operation is not in progress.
Hold: Pauses any serial communication with the device without deselecting it. When driven low,
SO is at high impedance, and all input at SI and SCK are ignored. Requires that CS# also be
driven low.
Write Protect: Protects the memory area specified by Status Register bits BP2:BP0. When
driven low, prevents any program or erase command from altering the data in the protected
memory area.
Supply Voltage
Ground
D a t a
S h e e t
HOLD#
SCK
CS#
W#
S25FL064A
SI
GND
V
CC
Description
SO
9