Holtek HT66F002 - LVR Electrical Characteristics; Power on Reset Electrical Characteristics

Rev. 1.71 18 April 11, 2017 Rev. 1.71 19 April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
LVR Electrical Characteristics
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
V
DD
Operating Voltage — — 1.9 — 5.5 V
V
LVR
Low Voltage Reset Voltage — LVR Enable, 2.1V option -5% 2.10 +5% V
V
BG
Reference Output with Buffer — T
J
= +25°C @3.15V -5% 1.04 +5% V
t
LVR
Low Voltage Width to Reset — — 160 320 640 μs
LCD Electrical Characteristics – HT66F004
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
I
BIAS
V
DD
/2 Bias Current for LCD 5V
ISEL[1:0]=00 17.5 25.0 32.5 μA
ISEL[1:0]=01 35 50 65 μA
ISEL[1:0]=10 70 100 130 μA
ISEL[1:0]=11 140 200 260 μA
V
SCOM
V
DD
/2 Voltage for LCD COM Port 2.2~5.5V No load 0.475 0.5 0.525 V
DD
Power on Reset Electrical Characteristics
Ta = 25°C
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
V
POR
V
DD
Start Voltage to Ensure Power-on Reset — — — — 100 mV
RR
POR
V
DD
Rising Rate to Ensure Power-on Reset — — 0.035 — — V/ms
t
POR
Minimum Time for V
DD
Stays at V
POR
to
Ensure Power-on Reset
— — 1 — — ms
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