ST72334J4B7(2003) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST72334J4B7
(Rev.:2003)
(Rev.:2003)
STMicroelectronics
ST72334J4B7 Datasheet PDF : 153 Pages
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ST72334J/N, ST72314J/N, ST72124J
FUNCTIONAL OPERATING CONDITIONS (Cont’d)
Figure 60. High LVD Threshold Versus VDD and fOSC for ROM devices 2)
DEVICE UNDER
RESET
IN THIS AREA
fOSC1680[MH00000 00000z00000] 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000
2.5
3
3.5 VIT-≥3.85 4
4.5
5
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
FUNCTIONAL AREA
SUPPLY VOLTAGE [V]
5.5
Figure 61. Medium LVD Threshold Versus VDD and fOSC for ROM devices 2)
DEVICE UNDER
RESET
IN THIS AREA
fOSC168[MH00000 00000z00000] 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000
0
2.5
3
VIT-≥3.5V
4
4.5
5
Figure 62. Low LVD Threshold Versus VDD and fOSC for ROM devices 2)3)
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
FUNCTIONAL AREA
SUPPLY VOLTAGE [V]
5.5
fOSC [MHz]
FUNCTIONALITY
NOT GUARANTEED
DEVICE UNDER
RESET
IN THIS AREA
16
8
000
000
000
000
000
000
000
000
000
000
000
000
0
IN THIS AREA
FUNCTIONAL AREA
SUPPLY VOLTAGE [V]
2.5
VIT-≥3.00V 3.5
4
4.5
5
5.5
Notes:
1. LVD typical data are based on TA=25°C. They are given only as design guidelines and are not tested.
2. The minimum VDD rise time rate is needed to insure a correct device power-on and LVD reset. Not tested in production.
3. If the low LVD threshold is selected, when VDD falls below 3.2V, (VDD minimum operating voltage), the device is guar-
anteed to continue functioning until it goes into reset state. The specified VDD min. value is necessary in the device power
on phase, but during a power down phase or voltage drop the device will function below this min. level.
112/153
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