ST92T163R4T1 STMicroelectronics, ST92T163R4T1 Datasheet - Page 88
ST92T163R4T1
Manufacturer Part Number
ST92T163R4T1
Description
Microcontrollers (MCU) OTP EPROM 20K USB/I2
Manufacturer
STMicroelectronics
Datasheet
1.ST92T163R4T1.pdf
(224 pages)
Specifications of ST92T163R4T1
Data Bus Width
8 bit, 16 bit
Program Memory Type
EPROM
Program Memory Size
20 KB
Data Ram Size
2 KB
Interface Type
I2C, SCI, USB
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
64
Number Of Timers
2
Operating Supply Voltage
4 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
TQFP-64
Minimum Operating Temperature
0 C
On-chip Adc
8 bit
Lead Free Status / Rohs Status
No
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ST92163 - RESET AND CLOCK CONTROL UNIT (RCCU)
5.8 LOW VOLTAGE DETECTOR (LVD) RESET
The on-chip Low Voltage Detector (LVD) gener-
ates a static reset when the supply voltage is be-
low a reference value. The LVD works both during
power-on as well as when the power supply drops
(brown-out). The reference value for the voltage
drop is lower than the reference value for power-
on in order to avoid a parasitic reset when the
MCU starts running and sinks current on the sup-
ply (hysteresis).
Figure 47. Low Voltage Detector Reset Function
Figure 48. Low Voltage Detector Reset Signal
Note: Refer to Electrical Characteristics for the values of V
88/224
V
Internal Reset
DD
RESET
(External pin)
V
DD
Low Voltage
Detector Reset
V
LVDUP
The LVD circuitry generates a reset when V
below:
– V
– V
The Low Voltage Detector circuitry resets only the
MCU and it does not change the external RESET
pin status: no reset signal for an external applica-
tion is generated.
LVDUP
LVDOWN
DD
, V
LVDUP
when V
when V
and V
DD
V
DD
LVDDOWN
is rising
LVDDOWN
is falling
Internal Reset
.
DD
is
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