Lvr (Low Voltage Reset) Timing; Battery Level Detector Electrical Characteristics - Samsung S3C8275X User Manual

8-bit cmos microcontrollers
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S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
°
(T
= 25
C, V
= 2.0 V to 3.6 V)
A
DD
Parameter
Operating voltage of BLD
Voltage of BLD
Current consumption
Hysteresis voltage of BLD
BLD circuit response time
°
(T
= 25
C)
A
Parameter
Voltage of LVR
V
voltage rising time
DD
V
voltage off time
DD
Hysteresis voltage of LVR
Current consumption
NOTES:
1.
The current of LVR circuit is consumed when LVR is enabled by "Smart Option"
2.
Current consumed when low voltage reset circuit is provided internally.
Table 17-6. Battery Level Detector Electrical Characteristics
Symbol
V
DDBLD
V
BLDCON.2-.0 = 000b
BLD
BLDCON.2-.0 = 101b
BLDCON.2-.0 = 011b
I
V
BLD
DD
V
DD
∆V
BLDCON.2-0 = 000b,
101b, 011b
T
Fw = 32.768 kHz
B
Table 17-7. LVR (Low Voltage Reset) Electrical Characteristics
Symbol
V
T
LVR
A
t
R
t
OFF
∆V
I
V
DDPR
DD
V
DD
Figure 17-6. LVR (Low Voltage Reset) Timing
Conditions
= 3.3 V
= 2.2 V
Conditions
°
= 25
C
= 3.3 V
t
OFF
Min
Typ
2.0
2.0
2.2
2.15
2.4
2.5
2.8
70
50
10
Min
Typ
2.0
2.2
10
0.5
10
70
t
R
0.9 V
DD
0.1 V
DD
ELECTRICAL DATA
Max
Unit
3.6
V
2.4
2.65
3.1
µA
120
100
100
mV
1
ms
Max
Unit
2.4
V
µs
s
100
mV
µA
120
17-9

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