DS1338 Maxim, DS1338 Datasheet - Page 2

• Manufacturer Part Number: DS1338
• Description: The DS1338 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground………………………………………………………..……..-0.3V to +6.0V
Operating Temperature Range…………………………………………………………………………..……-40°C to +85°C
Storage Temperature Range………………………………………………………………………………...-55°C to +125°C
Lead Temperature (soldering, 10s) ……….……………………………………………………………………….
Soldering Temperature (reflow) …………………………………………………………………………………….
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(V
otherwise noted.) (Note 1)
DC ELECTRICAL CHARACTERISTICS
(V
T
Supply Voltage
Logic 1
Logic 0
Power-Fail Voltage
V
Input Leakage
I/O Leakage
SDA Logic 0 Output
SQW/OUT Logic 0 Output
Active Supply Current
(Note 5)
Standby Current (Note 6)
V
(V
A
CC
CC
BAT
BAT
= +25°C, unless otherwise noted.) (Note 1)
CC
= V
= V
Input Voltage
Leakage Current
Active)
PARAMETER
PARAMETER
CC(MIN)
CC(MIN)
to V
to V
CC(MAX)
CC(MAX)
, T
, T
A
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
= -40°C to +85°C, unless otherwise noted. Typical values are at V
SYMBOL
SYMBOL
I
I
I
BATLKG
OLSQW
V
OLSDA
I
I
V
V
V
V
I
CCA
CCS
I
BAT
LO
CC
LI
PF
IH
IL
DS1338-18
DS1338-3
DS1338-33
(Note 2)
(Note 2)
DS1338-18
DS1338-3
DS1338-33
(Note 2)
(Note 3)
(Note 4)
V
V
V
1.71V < V
V
1.3V < V
V
DS1338-18:
DS1338-3:
DS1338-33
DS1338-18:
DS1338-3:
DS1338-33
CC
CC
CC
OL
OL
= 0.2 x V
= 0.2 x V
> 2V; V
< 2V; V
> 2V; V
CONDITIONS
CONDITIONS
CC
2 of 16
CC
< 1.71V;
OL
OL
OL
< 2V;
CC
CC
= 0.4V
= 0.2 x V
= 0.4V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
= 1.89V
= 3.30V
= 1.89V
= 3.30V
= 5.5V
= 3.63V
= 3.63V
= 5.5V
CC
DS1338 I
0.7 x
1.71
1.51
2.45
2.70
MIN
MIN
-0.3
V
2.7
3.0
1.3
CC
2
C RTC with 56-Byte NV RAM
TYP
1.62
2.59
2.82
TYP
110
120
1.8
3.0
3.3
3.0
75
60
80
85
25
A
CC
= +25°C, unless
+0.3 x
V
MAX
1.71
2.70
2.97
= TYP,
MAX
V
5.5
5.5
5.5
0.3
3.7
250
150
200
200
325
100
125
125
200
100
CC
3.0
3.0
3.0
3.0
CC
1
1
+
+260°C
UNITS
+260°C
UNITS
mA
mA
V
V
V
V
V
µA
µA
µA
µA
µA
nA