Rev. 1.00
22
September 11, 2018
Rev. 1.00
23
September 11, 2018
HT45F4050
A/D NFC Flash MCU
HT45F4050
A/D NFC Flash MCU
LVD & LVR Electrical Characteristics
Ta=-40°C~85°C, unless otherwise specified
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
LVR
Low Voltage Reset Voltage
— LVR enable, voltage select 1.65V -5%
1.7
+5%
V
— LVR enable, voltage select 1.9V
-5%
1.9
+5%
— LVR enable, voltage select 2.55V -3%
2.55
+3%
— LVR enable, voltage select 3.15V -3%
3.15
+3%
— LVR enable, voltage select 3.8V
-3%
3.8
+3%
V
LVD
Low Voltage Detection
Voltage
— LVD enable, voltage select 1.8V
-5%
1.8
+5%
V
— LVD enable, voltage select 2.0V
-5%
2.0
+5%
— LVD enable, voltage select 2.4V
-5%
2.4
+5%
— LVD enable, voltage select 2.7V
-5%
2.7
+5%
— LVD enable, voltage select 3.0V
-5%
3.0
+5%
— LVD enable, voltage select 3.3V
-5%
3.3
+5%
— LVD enable, voltage select 3.6V
-5%
3.6
+5%
— LVD enable, voltage select 4.0V
-5%
4.0
+5%
I
LVRLVDBG
Operating Current
3V LVD enable, LVR enable,
V
LVR
=1.9V, V
LVD
=2V
—
—
10
μA
5V
—
8
15
t
LVDS
LVDO Stable Time
— For LVR enable, LVD off → on
—
—
15
μs
— For LVR disable, LVD off → on
—
—
150
t
LVR
Minimum Low Voltage Width
to Reset
—
—
120
240
480
μs
t
LVD
Minimum Low Voltage Width
to Interrupt
—
—
60
120
240
μs
I
LVR
Additional Current for LVR
Enable
5V LVD disable
—
—
8
μA
I
LVD
Additional Current for LVD
Enable
5V LVR disable
—
—
8
μA