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ST72C254G2 Datasheet(PDF) 101 Page - STMicroelectronics

No. de pieza ST72C254G2
Descripción Electrónicos  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES
PDF  140 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72C254G2 Datasheet(HTML) 101 Page - STMicroelectronics

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ST72104G, ST72215G, ST72216G, ST72254G
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FUNCTIONAL OPERATING CONDITIONS (Cont’d)
Figure 56. High LVD Threshold Versus V
DD and f
OSC for ROM devices
2)
Figure 57. Medium LVD Threshold Versus V
DD and f
OSC for ROM devices
2)
Figure 58. Low LVD Threshold Versus VDD and fOSC for ROM devices
2)3)
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, the device is guaranteed to be either functioning or
under reset.
fOSC [MHz]
SUPPLY VOLTAGE [V]
16
8
0
2.5
3
3.5
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
VIT-≥3.85
fOSC [MHz]
SUPPLY VOLTAGE [V]
16
8
0
2.5
3
VIT-≥3.5V
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
fOSC [MHz]
SUPPLY VOLTAGE [V]
16
8
0
2.5
VIT-≥3.00V
3.5
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA



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