Winbond Electronics W55F20, W55F05, W55F10 Datasheet
GENERAL DESCRIPTION
W55FXX
SERIAL FLASH EEPROM SERIES
The W55FXX is a serial input/output flash EEPROM series that is typically used as the memory cell
of a W51300 (voice recorder controller) or the ROM code emulator for the PowerSpeech
TM
series.
The single voltage supply eliminates the need for an extra pump circuit during programming and
erasing.
FEATURES
• Provides CLK, ADDR, and DATA pins to operate with Winbond PowerSpeech
• 512K/1M/2M memory sizes available
• Directly cascadable for longer duration
• Fast frame-write operation
− Frame (32 bits) program cycle time: 400 µS (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 µA (typ.)
TM
series
PIN CONFIGURATION
EOP
CTRL
V
ADDR
MODE
1
2
SS
3
4
8
V
7
6
5
DD
CLK
DATA
Publication Release Date: August 1996
- 1 - Revision A2
W55FXX
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
3VSS I Ground
4 ADDR I Input clock for start adress shift-in
5 DATA I/O Bidirectional data line
6 CLK I Input clock for data write-in and read-out
7VDD I Positive voltage supply
8 MODE I Mode select control pin
BLOCK DIAGRAM
CLK
DATA
ADDR
CTRL
MODE
EOP
shift register
/address counter
Decoder
Write-in Buffer
Control
Circuit
page-code cells
/page-code flag
/comparator
Output
Buffer
Core
Array
POR
Circuit
Pump
Circuit
- 2 -
W55FXX
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL CONDITION RATED VALUE UNIT
Operating Temp. TOPR - 0 to +70
Storage Temp. TSTG - -65 to +150
Power Supply VDD−VSS - -0.3 to +7.0 V
Input DC Voltage VDC All pins -0.5 to VDD +1.0 V
Transient Voltage (< 20 nS) VTRAN All pins -1.0 to VDD +1.0 V
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
DC CHARACTERISTICS
(VDD = 4.5V, VSS = 0V, TA = 25° C)
PARAMETER SYMBOL CONDITIONS LIMITS UNIT
MIN. TYP. MAX.
Operating voltage VDD - 2.4
(Note)
Standby current ISB All inputs = GND
-24
DATA & EOP open
Operating current IOP In read mode
-510mA
DATA & EOP open
F
OSC = 1 MHz
Input voltage High VIH All input pins 2.0 VDD V
Low VIL -0.3 - 0.8 V
Output current Sink IOL VOL = 0.5V 2.5 5 - mA
Drive IOH VOH = 4.0V -2.5 -5 - mA
Input leakage current
ILI1 VIN = 4.5V - - 4.5
of CTRL, MODE
Input leakage current
ILI2 VIN = 0V - - -4.5
of DATA
Note: For been working with W52900, the minimum operating voltage couldn't be less than 3.6 volt.
4.5 5.5 V
°C
°C
µA
µA
µA
Publication Release Date: August 1996
- 3 - Revision A2
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