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LQFP64 Datasheet(PDF) 59 Page - STMicroelectronics

Part # LQFP64
Description  Programmable watchdog timer
PDF  103 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LQFP64 Datasheet(HTML) 59 Page - STMicroelectronics

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SPC560P34L1, SPC560P34L3, SPC560P40L1, SPC560P40L3
Electrical characteristics
Doc ID 16100 Rev 7
59/103
Figure 13.
Brown-out typical sequence
3.10
DC electrical characteristics
3.10.1
NVUSRO register
Portions of the device configuration, such as high voltage supply and watchdog
enable/disable after reset are controlled via bit values in the non-volatile user options
(NVUSRO) register.
For a detailed description of the NVUSRO register, please refer to the device reference
manual.
NVUSRO[PAD3V5V] field description
The DC electrical characteristics are dependent on the PAD3V5V bit value. Table 18 shows
how NVUSRO[PAD3V5V] controls the device configuration.
VDD_HV_REG
0V
3.3V
0V
3.3V
VDD_LV_REGCOR
0V
1.2V
3.3V
POWER_ON
LVDM (HV)
0V
LVDD (LV)
3.3V
0V
POWER_OK
3.3V
RC16MHz Oscillator
0V
1.2V
P0
IDLE
0V
1.2V
Internal Reset Generation Module
FSM
V
LVDHV3L
0V
V
LVDHV3H
P1
~1us
Table 18.
PAD3V5V field description
Value(1)
1.
Default manufacturing value before flash initialization is ‘1’ (3.3 V).
Description
0
High voltage supply is 5.0 V
1
High voltage supply is 3.3 V



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