HT48E10 Holtek Semiconductor, HT48E10 Datasheet - Page 15
HT48E10
Manufacturer Part Number
HT48E10
Description
I/O Type 8-Bit MTP MCU
Manufacturer
Holtek Semiconductor
Datasheet
1.HT48E10.pdf
(42 pages)
- Current page: 15 of 42
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The PC0 and PC1 are pin-shared with INT and TMR
pins, respectively.
It is recommended that unused or not bonded out I/O
lines should be set as output pins by software instruction
to avoid consuming power under input floating state.
Low Voltage Reset - LVR
The HT48E10 provides a low voltage reset circuit in or-
der to monitor the supply voltage of the device. If the
supply voltage drops to within the range 0.9V~V
such as when changing a battery, the LVR will automati-
cally reset the device internally.
The LVR includes the following specifications:
Rev. 1.50
The low voltage (0.9V~VLVR) has to remain in its orig-
inal state for longer than 1ms. If the low voltage state
does not exceed 1ms, the LVR will ignore it and will
not perform a reset function.
The LVR uses an OR function with the external RES
signal to perform a chip reset.
Input/Output Ports
LVR
,
15
The relationship between V
Note:
V
tion at 4MHz system clock.
OPR
is the voltage range for proper chip opera-
DD
and V
LVR
October 31, 2006
www.DataSheet4U.com
is shown below.
HT48E10
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