參數(shù)資料
型號: DS2740U
元件分類: 通用總線功能
英文描述: High-Precision Coulomb Counter
中文描述: 高精度庫侖計(jì)
文件頁數(shù): 15/15頁
文件大?。?/td> 248K
代理商: DS2740U
DS2740
15 of 15
Input Logic Low: DQ,
PIO
Output Logic Low:
DQ, PIO
DQ, PIO Input
Pulldown Current
OVD Input Leakage
DQ Capacitance
DQ Low to Sleep Time
V
IL
(Note 1)
0.6
V
V
OL
I
OL
= 4mA (Note 1)
0.4
V
I
PD
V
DD
= 4.2V,
V
DQ
= 0.4V
PIO bit = 1
0.5
A
IL
OVD
C
DQ
t
SLEEP
-1
1
50
2.4
A
pF
s
(Note 3)
2.0
ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE—STANDARD
SPEED
(2.7V V
DD
5.5V; T
A
= -20 C to +70 C.)
PARAMETER
SYMBOL
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
MIN
60
1
60
1
TYP
MAX
120
UNITS
t
SLOT
t
REC
t
LOW0
t
LOW1
t
RDV
t
RSTH
t
RSTL
t
PDH
t
PDL
s
s
s
s
s
s
s
s
s
120
15
15
480
480
15
60
960
60
240
ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE—OVERDRIVE
SPEED
(2.7V V
DD
5.5V; T
A
= -20 C to +70 C.)
PARAMETER
SYMBOL
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
MIN
6
1
6
1
TYP
MAX
16
UNITS
t
SLOT
t
REC
t
LOW0
t
LOW1
t
RDV
t
RSTH
t
RSTL
t
PDH
t
PDL
s
s
s
s
s
s
s
s
s
16
2
2
48
48
2
8
80
6
24
Note 1:
Note 2:
Note 3:
All voltages are referenced to V
SS
.
Offset performance requires proper circuit layout design free of surface contaminants.
The DS2740 enters the sleep mode 2.0s to 2.4s after DQ goes low.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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