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

White Electronic Designs

WED7GxxxIDE36

WED7GxxxIDE33

July, 2003

Rev. 0

PRELIMINARY*

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

FIG. 2: POWER LOSS WITH POWER FAILURE PROTECTION CIRCUIT

Notes:

All values quoted are typical at ambient temperatures and nominal supply voltage unless otherwise stated.

Sleep mode current is specified under the condition that all inputs are at static CMOS levels and in a “Not

Busy” operating state.

Power Loss

Data Transmitted

External V

CC

Data Received

Data Written

Internal V

CC

Note: t

t

BACKUP

t

SW

Valin V

Sector n+1

Sector n

Sector n

Sector n+2

n+1

n

Sector n+1

Temperature

Operating

Non-Operating

0° C to 70° C

-25° C to 85° C

Humidity

Operating

Non-Operating

8% to 95 %, non-condensing

8% to 95 %, non-condensing

Acoustic Noise

0 dB

Altitude (relative to sea level)

Operating

Non-Operating

80,000 feet maximum

ENVIRONMENTAL SPECIFICATIONS

3.3 V

5 V

100 mV max. ripple (p-p)

3.3V +/- 5%

5V +/- 10%

See Notes

Sleep

Reading

Writing

Read/Write Peak

200 µA

21 mA

24 mA

150 mA/50 µs

500 µA

34 mA

34 mA

150 mA/50 µs

POWER REQUIREMENTS