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ST7261 датащи(PDF) 52 Page - STMicroelectronics

номер детали ST7261
подробное описание детали  LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, ROM MEMORY, LVD, WDG, TIMER
PDF  80 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7261 датащи(HTML) 52 Page - STMicroelectronics

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11.3 OPERATING CONDITIONS
11.3.1 General Operating Conditions
Figure 30. fCPU Maximum Operating Frequency Versus VDD Supply Voltage
11.3.2 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for VDD, fCPU, and TA. Refer to Figure 11 on page 14.
Notes:
1. Not tested, guaranteed by design.
2. Not tested in production, guaranteed by characterization.
3. The VDD rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDD
Operating Supply Voltage
fCPU = 8 MHz
45
5.5
V
fCPU
Operating frequency
fOSC = 12MHz
8
MHz
fOSC = 6MHz
4
TA
Ambient temperature range
070
°C
fCPU [MHz]
SUPPLY VOLTAGE [V]
8
4
2
0
2.5
3.0
3.5
4
4.5
5
5.5
FUNCTIONALITY
FUNCTIONALITY
GUARANTEED
IN THIS AREA
NOT GUARANTEED
IN THIS AREA
(UNLESS OTHERWISE
SPECIFIED IN THE
TABLES OF
PARAMETRIC DATA)
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
VIT+
Low Voltage Reset Threshold (VDD rising)
VDD Max. Variation 50V/ms
3.6
3.8
3.95
V
VIT-
Low Voltage Reset Threshold (VDD falling)
VDD Max. Variation 50V/ms
3.45
3.65
3.8
V
Vhyst
Hysteresis (VIT+ - VIT-)
120 2)
150 2)
180 2)
mV
VtPOR
VDD rise time rate
3)
0.5
50
V/ms



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