STR731FV0 STMicroelectronics, STR731FV0 Datasheet - Page 41

• Manufacturer Part Number: STR731FV0
• Description: 32-BIT ARM7 FLASH MICROCONTROLLER WITH 3x CAN, 4 UARTs, 20 TIMERS, ADC, 12 COMM. INTERFACES
• Manufacturer: STMicroelectronics

Specifications of STR731FV0

• 5 Power Saving Modes: SLOW, WFI, LPWFI, STOP and HALT modes
• 6/10 16-bit Timers (tim) Each With: 2 input captures, 2 output compares, PWM and pulse counter modes
• Conversion Time: min. 3μs, range

STR73xFxx
NRSTIN pin
The NRSTIN pin input driver is CMOS. A permanent pull-up is present which is the same as
R
Subject to general operating conditions for
Table 25.
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 protection
1. The R
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 V
V
V
V
PU
V
V
V
hys(NRSTIN)
NF(RSTINn)
RP(RSTINn)
Symbol
IH(NRSTIN)
IL(NRSTIN)
Table
F(RSTINn)
(see
EXTERNAL
Required
CIRCUIT
RESET
PU
25. Otherwise the reset will not be taken into account internally.
: General characteristics on page
pull-up equivalent resistor is based on a resistive transistor.
Reset pin characteristics
NRSTIN Input low level voltage
NRSTIN Input high level voltage
NRSTIN Schmitt trigger voltage
hysteresis
NRSTIN Input filtered pulse
NRSTIN Input not filtered pulse
NRSTIN removal after Power-up
0.01μF
2)
Parameter
3)
V
DD
3)
1)
V
3)
1)
R
38)
DD
PU
Filter
and T
Conditions
A
1)
unless otherwise specified.
INTERNAL RESET
0.7 V
IL(NRSTIN)
Min
100
2
DD
Electrical parameters
Typ
max. level specified in
800
1)
STR7X
0.3 V
Max
500
DD
Unit
41/52
mV
ns
µs
µs
V