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STR730FZ1T7 bảng dữ liệu(PDF) 41 Page - STMicroelectronics

tên linh kiện STR730FZ1T7
Giải thích chi tiết về linh kiện  ARM7TDMI??32-bit MCU with Flash, 3x CAN, 4 UARTs, 20 timers, ADC, 12 comm. interfaces
PDF  52 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STR730FZ1T7 bảng dữ liệu(HTML) 41 Page - STMicroelectronics

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STR73xFxx
Electrical parameters
41/52
NRSTIN pin
The NRSTIN pin input driver is CMOS. A permanent pull-up is present which is the same as
RPU (see : General characteristics on page 38)
Subject to general operating conditions for VDD and TA unless otherwise specified.
1.
Data based on characterization results, not tested in production.
2.
Hysteresis voltage between Schmitt trigger switching levels.
3.
Data guaranteed by design, not tested in production.
Figure 19. Recommended NRSTIN pin
protection1)
1.
The RPU pull-up equivalent resistor is based on a resistive transistor.
2.
The reset network protects the device against parasitic resets.
3.
The user must ensure that the level on the NRSTIN pin can go below the VIL(NRSTIN) max. level specified in
Table 25. Otherwise the reset will not be taken into account internally.
Table 25.
Reset pin characteristics
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
VIL(NRSTIN)
NRSTIN Input low level voltage 1)
0.3 VDD
V
VIH(NRSTIN) NRSTIN Input high level voltage 1)
0.7 VDD
Vhys(NRSTIN)
NRSTIN Schmitt trigger voltage
hysteresis 2)
800
mV
VF(RSTINn)
NRSTIN Input filtered pulse3)
500
ns
VNF(RSTINn) NRSTIN Input not filtered pulse3)
2µs
VRP(RSTINn) NRSTIN removal after Power-up3)
100
µs
0.01
μF
EXTERNAL
RESET
CIRCUIT
Required
STR7X
Filter
RPU
VDD
INTERNAL RESET



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