BS85B12-3 Datasheet, PDF (20/182 Pages) Holtek Semiconductor Inc – Touch Key Flash Type 8-Bit MCU with LCD/LED Driver

BS85B12-3/BS85C20-3
Touch Key Flash MCU with LCD/LED Driver
Power-on Reset Characteristics
Symbol
Parameter
V_POR
R_{POR AC}
t_POR
VDD Start Voltage to Ensure
Power-on Reset
VDD Raising Rate to Ensure
Power-on Reset
Minimum Time for VDD Stays at
V_POR to Ensure Power-on Reset
Test Conditions
V_DD
Conditions
¾
¾
¾
¾
¾
¾
V DD
Ta=25°C
Min. Typ. Max. Unit
¾
¾
0.035 ¾
1
¾
100 mV
¾ V/ms
¾
ms
tP O R
R R VDD
V POR
T im e
Oscillator Temperature/Frequency Characteristics
The following characteristic graphics depicts typical oscillator behavior. The data presented here is a
statistical summary of data gathered on units from different lots over a period of time. This is for
information only and the figures were not tested during manufacturing.
In some of the graphs, the data exceeding the specified operating range are shown for information
purposes only. The device will operate properly only within the specified range.
8.300
8.200
8.100
8.000
7.900
7.800
7.700
7.600
7.500
7.400
7.300
-60
-40
-20
Internal RC -- 8MHz (3V)
2.5V
2.7V
3.0V
4.0V
0
20
40
60
80
100
120
140
T ^Ta ^a(( ^°° ^CC ⁾)
Rev. 1.00
14
February 1, 2011