STR731FV1T6 STMicroelectronics, STR731FV1T6 Datasheet - Page 41

• Manufacturer Part Number: STR731FV1T6
• Description: MCU 32BIT 128K FLASH 100-TQFP
• Manufacturer: STMicroelectronics
• Series: STR7r

Specifications of STR731FV1T6

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 36MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Processor Series: STR731x
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: CAN, I2C, SPI, UART
• Maximum Clock Frequency: 36 MHz
• Number Of Programmable I/os: 72
• Number Of Timers: 9
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWARM, EWARM-BL, MCBSTR730, KSK-STR731-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: STR730-SK/HIT, STR730-SK/RAIS, STR731-SK/IAR, STR730-EVAL, STX-PRO/RAIS, STX-RLINK, STR79-RVDK/CPP, STR79-RVDK, STR79-RVDK/UPG
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

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