DS1393 Maxim Integrated Products, DS1393 Datasheet - Page 3

• Manufacturer Part Number: DS1393
• Description: (DS1390 - DS1393) Low-Voltage SPI/3-Wire RTCs
• Manufacturer: Maxim Integrated Products

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