WED7GxxxIDE36
WED7GxxxIDE33
White Electronic Designs
PRELIMINARY*
FIG. 2: POWER LOSS WITH POWER FAILURE PROTECTION CIRCUIT
Power Loss
Data Transmitted
Sector n
Sector n+1
Sector n+2
External VCC
Internal VCC
Valin VCC Threshold
Sector n
Sector n+1
Data Received
Data Written
n+1
n
Note: tBACKUP > tSW
tSW
tBACKUP
ENVIRONMENTAL SPECIFICATIONS
Operating
Non-Operating
0° C to 70° C
-25° C to 85° C
Temperature
Operating
Non-Operating
8% to 95 %, non-condensing
8% to 95 %, non-condensing
Humidity
0 dB
Acoustic Noise
Operating
Non-Operating
80,000 feet maximum
Altitude (relative to sea level)
POWER REQUIREMENTS
3.3 V
5 V
DC Input Voltage (VCC
100 mV max. ripple (p-p)
)
3.3V +/- 5%
5V +/- 10%
Sleep
Reading
Writing
200 µA
21 mA
24 mA
500 µA
34 mA
34 mA
See Notes
Read/Write Peak 150 mA/50 µs
150 mA/50 µs
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.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2003
Rev. 0
6
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
