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White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

White Electronic Designs

WSF512K32-XXX

May 2006

Rev. 9

SRAM TRUTH TABLE

SCS#

OE#

SWE#

Mode

Data I/O

Power

H

X

X

Standby

High Z

Standby

L

L

H

Read

Data Out

Active

L

H

H

Read

High Z

Active

L

X

L

Write

Data In

Active

NOTE:

1. FCS# must remain high when SCS# is low.

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Min

Max

Unit

Operating Temperature

-55

+125

°C

Storage Temperature

-65

+150

°C

Signal Voltage Relative to GND

-0.5

7.0

V

Junction Temperature

150

°C

Supply Voltage

-0.5

7.0

V

Parameter

Flash Data Retention

20 years

Flash Endurance (write/erase cycles)

100,000

NOTE:

1. Stresses above the absolute maximum rating may cause permanent damage to the

device. Extended operation at the maximum levels may degrade performance and

affect reliability.

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Min

Max

Unit

Supply Voltage

4.5

5.5

V

Input High Voltage

2.2

V

Input Low Voltage

-0.5

+0.8

V

CAPACITANCE

Ta = +25°C

Parameter

Symbol

Conditions

Max Unit

OE# capacitance

80

pF

30

pF

F/S CS# capacitance

50

pF

30

pF

80

pF

This parameter is guaranteed by design but not tested.

DC CHARACTERISTICS

Parameter

Symbol

Conditions

Min

Max

Unit

Input Leakage Current

10

µA

Output Leakage Current

10

µA

SRAM Operating Supply Current x 32 Mode

550

mA

Standby Current

90

mA

SRAM Output Low Voltage

0.4

V

SRAM Output High Voltage

2.4

V

250

mA

Erase (2)

300

mA

Flash Output Low Voltage

0.45

V

Flash Output High Voltage

V

Flash Output High Voltage

V

3.2

4.2

V

NOTES: