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DS1390 Datasheet

  • DS1390

  • Low-Voltage SPI/3-Wire RTCs with Trickle Charger

  • MAXIM   MAXIM

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Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
CC
= V
CC(MIN)
to V
CC(MAX)
, T
A
= -40擄C to +85擄C, unless otherwise noted. Typical values are at nominal supply voltage and T
A
= +25擄C,
unless otherwise noted.) (Note 1)
PARAMETER
V
CC
Standby Current
(Note 11)
V
BACKUP
Leakage Current
(V
BACKUP
= 3.7V,
V
CC
= V
CC(MAX)
)
SYMBOL
-33
I
CCS
-3
-18
I
BACKUPLKG
CONDITIONS
MIN
TYP
115
80
60
15
MAX
175
125
100
100
nA
UNITS
碌A(chǔ)
DS1390/DS1391/DS1392/DS1393
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 0V, V
BACKUP
= 3.7V, T
A
= -40擄C to +85擄C, unless otherwise noted.) (Note 1)
PARAMETER
V
BACKUP
Current OSC On,
SQW Off
V
BACKUP
Current OSC On,
SQW On (32kHz)
V
BACKUP
Current OSC On,
SQW On, V
BACKUP
= 3.0V,
T
A
= +25擄C
V
BACKUP
Current, OSC Off
(Data Retention)
SYMBOL
I
BACKUP1
I
BACKUP2
(Note 12)
(Note 12)
CONDITIONS
MIN
TYP
500
600
MAX
1000
1150
UNITS
nA
nA
I
BACKUP3
(Note 12)
600
1000
nA
I
BACKUPDR
(Note 12)
25
100
nA
AC ELECTRICAL CHARACTERISTICS鈥擲PI INTERFACE
(V
CC
= V
CC(MIN)
to V
CC(MAX)
, T
A
= -40擄C to +85擄C, unless otherwise noted.) (Note 1)
PARAMETER
SCLK Frequency (Note 13)
Data to SCLK Setup
SCLK to Data Hold
SCLK to Data Valid
(Notes 13, 14, 15)
SCLK Low Time (Note 13)
SCLK High Time (Note 13)
SCLK Rise and Fall
CS
to SCLK Setup (Note 13)
SCLK to CS Hold (Note 13)
CS
Inactive Time (Note 13)
CS
to Output High Impedance
SYMBOL
f
SCLK
t
DC
t
CDH
t
CDD
t
CL
t
CH
t
R
, t
F
t
CC
t
CCH
t
CWH
t
CDZ
2.7V
鈮?/div>
V
CC
鈮?
5.5V
1.71V
鈮?/div>
V
CC
鈮?/div>
1.89V
(Notes 13, 14)
400
100
400
500
40
CONDITION
2.7V
鈮?/div>
V
CC
鈮?/div>
5.5V
1.71V
鈮?/div>
V
CC
鈮?/div>
1.89V
(Notes 13, 14)
(Notes 13, 14)
2.7V
鈮?/div>
V
CC
鈮?/div>
5.5V
1.71V
鈮?/div>
V
CC
鈮?/div>
1.89V
2.7V
鈮?/div>
V
CC
鈮?
5.5V
1.71V
鈮?/div>
V
CC
鈮?/div>
1.89V
2.7V
鈮?/div>
V
CC
鈮?/div>
5.5V
1.71V
鈮?/div>
V
CC
鈮?/div>
1.89V
110
400
110
400
200
30
30
80
160
MIN
TYP
MAX
4
1
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
_____________________________________________________________________
3

DS1390 PDF文件相關(guān)型號

DS1390-DS1393,DS1390U-18,DS1390U-3,DS1391U-18,DS1391U-3,DS1392U-18,DS1392U-3,DS1393U-18,DS1393U-3

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