HT48RA0-5 Holtek Semiconductor, HT48RA0-5 Datasheet - Page 17

• Manufacturer Part Number: HT48RA0-5
• Description: Remote Type 8-Bit OTP MCU
• Manufacturer: Holtek Semiconductor

Low Voltage Reset - LVR
The microcontroller provides a low voltage reset circuit
in order to monitor the supply voltage of the device. If the
supply voltage of the device is within the range
0.9V~V
will automatically reset the device internally.
The LVR includes the following specifications:
Note:
Rev.1.00
The low voltage (0.9V~V
state for a time in excess of 1ms. If the low voltage
state does not exceed 1ms, the LVR will ignore it and
will not perform a reset function.
LVR
*1 To make sure that the system oscillator has stabilised, the SST provides an extra delay of 1024 system
*2 Since low voltage has to be maintained in its original state and exceed 1ms, a 1ms delay enters
, such as when changing a battery, the LVR
clock pulses before entering normal operation.
the reset mode.
LVR
) has to remain in this
Low Voltage Reset
17
The relationship between V
DD
and V
LVR
HT48RA0-5
is shown below.
March 23, 2010
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