W55Fxx Serial Flash Memory
Winbond Electronics Corp.
Release Date: January 8, 2001
Winbond W55Fxx
Serial Flash Memory
Data Sheet
W55Fxx Data Sheet
Winbond Electronics Corp.
Release Date: January 8, 2001
Contents
General Description
2
1.1 W55Fxx Product Selection Guide........................................................................................2
Features 3
2.1 W55Fxx Features Description..............................................................................................3
2.2 W55Fxx Pin Configuration & Description...........................................................................4
2.3 W55Fxx System Block Diagram..........................................................................................5
Electrical Characteristics
6
3.1 W55Fxx Absolute Maximum Ratings..................................................................................6
3.2 W55Fxx DC Characteristics.................................................................................................6
3.3 W55Fxx AC Characteristics.................................................................................................7
Timing Waveform
8
4.1 W55Fxx Timing Waveform .................................................................................................8
Applications 9
5.1 W55Fxx Applications ..........................................................................................................9
5.2 W55Fxx Application Circuits ............................................................................................10
W55Fxx Data Sheet
Winbond Electronics Corp.
2
Release Date: January 8, 2001
General Description
The W55Fxx is a serial flash memory series that is typically used as the contents upgradeable memory device of
Internet toy applications, or applications with W51300 (VoiceRecorder
TM
controller) for voice message storage device.
Besides that, W55Fxx can still be the W551Cxxx (Serial Voice Memory) program or data emulator. The single voltage
supply eliminates the need for an extra pump circuit during flash memory cells programming and erasing.
1.1 W55Fxx Product Selection Guide
W55Fxx Serial Flash Memory is used to store pre-determined data or contents need to be upgradeable
applications. To communicate with W55Fxx in serial data mode, the connection interface total pin counts can be reduced
to five pins only. The following table is shown the product selection guide of part number vs. memory density.
Part #
W55F01
W55F05
W55F10A
W55F20
Density
128K bits
512K bits
1M bits
2M bits
W55Fxx Data Sheet
Winbond Electronics Corp.
3
Release Date: January 8, 2001
Features
2.1 W55Fxx Features Description
!"
Provides CLK, ADDR, and DATA connection interface pins to communicate with other controllers such as
Winbond PowerSpeech
TM
, BandDirector
TM
, ViewTalk
TM
, ....... Series.
!"
128K/512K/1M/2M bits memory density available.
!"
Directly cascadable for longer duration applications ( except for W55F01).
!"
Fast frame-write operation
#"Frame (32 bits) program cycle time: 400
S (typ.)
!"
Fast whole-chip-erase duration: 50 mS (max.)
!"
Read data access time: 500 nS (max.)
!"
Program/erase cycles: 10,000 (typ.)
!"
Data retention: 10 years (typ.)
!"
Low power consumption:
#"Operating: 5 mA (typ.)
#"Standby: 2
A (typ.)
W55Fxx Data Sheet
Winbond Electronics Corp.
4
Release Date: January 8, 2001
2.2 W55Fxx Pin Configuration & Description
Pin Configuration
Pin Description
No.
Pin Name
I/O
Description
1 EOP O
End of process signal output.
2 CTRL I
Enable signal for program and erase operations when MODE = 0,
Input clock for mode counter when MODE = 1.
3 VSS I Ground
4 ADDR I
Input clock for start adress shift-in.
5 DATA I/O
Bi-directional data line.
6 CLK I
Input clock for data write-in and read-out.
7 VDD I
Positive voltage supply.
8 MODE I
Mode select control pin.
EOP
CTRL
VSS
ADDR
MODE
VDD
CLK
DATA
1
2
3
4 5
6
7
8
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