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参数资料
型号： ST72C314N4TC
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP64
封装： 14 X 14 MM, ROHS COMPLIANT, TQFP-64
文件页数： 16/150页
文件大小： 3530K
代理商： ST72C314N4TC
ST72334xx-Auto, ST72314xx-Auto, ST72124Jx-Auto
112/150
OPERATING CONDITIONS (Cont’d)
15.3.2 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for VDD, fOSC, and TA.
Figure 56. High LVD Threshold Versus VDD and fOSC for Flash devices
3)
Figure 57. Medium LVD Threshold Versus VDD and fOSC for Flash devices
3)
Figure 58. Low LVD Threshold Versus VDD and fOSC for Flash devices
2)4)
Notes:
1. LVD typical data is based on TA=25°C. They are given only as design guidelines and are not tested.
2. Data based on characterization results, not tested in production.
3. The VDD rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
4.If the low LVD threshold is selected, when VDD falls below 3.2V, (VDD minimum operating voltage), the device is guar-
anteed to continue functioning until it goes into reset state. The specified VDD min. value is necessary in the device power
on phase, but during a power down phase or voltage drop the device will function below this min. level.
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
VIT+
Reset release threshold (VDD rise)
High Threshold
Med. Threshold
Low Threshold
4.10 2)
3.75 2)
3.25 2)
4.30
3.90
3.35
4.50
4.05
3.55
V
VIT-
Reset generation threshold (VDD
fall)
High Threshold
Med. Threshold
Low Threshold4)
3.852)
3.502)
3.00
4.05
3.65
3.10
4.30
3.95
3.35
Vhys
LVD voltage threshold hysteresis
VIT+-VIT-
200
250
300
mV
VtPOR
VDD rise time rate
3)
0.2
50
V/ms
tg(VDD)
Filtered glitch delay on VDD
2)
Not detected by the LVD
40
ns
fOSC [MHz]
SUPPLY VOLTAGE [V]
16
8
0
2.5
3
3.5
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
FUNCTIONALITY AND RESET NOT GUARANTEED IN THIS AREA
FOR TEMPERATURES HIGHER THAN 85°C
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
VIT-≥3.85
12
fOSC [MHz]
SUPPLY VOLTAGE [V]
16
8
0
2.5
3
VIT-≥3.5V
44.5
55.5
FUNCTIONAL AREA
DEVICE UNDER
FUNCTIONALITY AND RESET NOT GUARANTEED IN THIS AREA
FOR TEMPERATURES HIGHER THAN 85°C
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
12
fOSC [MHz]
SUPPLY VOLTAGE [V]
16
8
0
2.5
VIT-≥3V
3.5
4
4.5
5
5.5
FUNCTIONAL AREA
DEVICE UNDER
FUNCTIONALITY NOT GUARANTEED IN THIS AREA
FOR TEMPERATURES HIGHER THAN 85°C
RESET
IN THIS AREA
FUNCTIONALITY
NOT GUARANTEED
IN THIS AREA
12
3.2
SEE NOTE 4
相关PDF资料
PDF描述
ST72124J2TC/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
ST72334J4TB/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
ST72C314J2TC 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
ST72314N4TA/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72314N4TB/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
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