ST72652 查看數據表（PDF） - STMicroelectronics
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ST72652 Datasheet PDF : 166 Pages
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ST7265x
OPERATING CONDITIONS (Cont’d)
13.3.2 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for VDD, fOSC, and TA.
Symbol
Parameter
Conditions
Min Typ 1) Max Unit
VIT+
VIT-
Vhys
fCUTOFF
VtPOR
Reset release threshold
(VDD rise)
Reset generation threshold
(VDD fall)
LVD voltage threshold hysteresis
LVD filter cut-off frequency 2)
VDD rise time 3)
VIT+-VIT-
Not detected by the LVD
2.9
3.5
3.8
V
2.6
3.1
3.5
150
300
mV
10
MHz.
0.3
10
ms
Notes:
1. LVD typical data are based on TA=25°C. They are given only as design guidelines and are not tested.
2. Not tested, guaranteed by construction.
3. The VDD rise time condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
13.3.3 Power Supply Manager Characteristics
Subject to general operating conditions for VDD, fOSC, and TA. Not guaranteed on LVD devices (without E
suffix).
Symbol
USBVIT+
USBVIT-
USBVhys
VPLLmin48
VPLLmin40
VPLLmin24
Parameter
Conditions
Reset release threshold
(VDD rise)
Reset generation threshold
(VDD fall)
USB voltage threshold hysteresis
Minimum voltage required for stable
48MHz PLL operation (PLL locked)
USBVIT+-USBVIT-
Minimum voltage required for
40MHz PLL operation (PLL un-
locked)
Minimum voltage required for
24MHz PLL operation (PLL un-
locked)
Min Typ Max
3.50 3.80 4.00
3.30
100
3.7 1)
3.65
200
3.80
300
Unit
V
mV
V
3.4 1)
V
3.0 1)
V
1. Not tested, guaranteed by construction.
13.3.4 Storage Device Supply Characteristics
Subject to general operating conditions for VDD, fOSC, and TA.
Symbol
Parameter
VDDF
Voltage output for external storage
device (Iload max = 50mA)
Conditions
Min Typ Max Unit
USB Mode: VSET[1:0]=11 2.5
2.8
3.2
10 2.9
3.3
3.6
V
01 3.0
3.4
3.8
00 3.1
3.5
3.9
Note: In Stand-alone mode VDDF must be connected to VDD
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