DS1307 Maxim, DS1307 Datasheet - Page 2

• Manufacturer Part Number: DS1307
• Description: The DS1307 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 ................................................................................ -0.5V to +7.0V
Operating Temperature Range (Noncondensing)
Storage Temperature Range ......................................................................................................... -55°C to +125°C
Soldering Temperature (DIP, leads) .................................................................................... +260°C for 10 seconds
Soldering Temperature (surface mount)…..……………………….Refer to the JPC/JEDEC J-STD-020 Specification.
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
(T
DC ELECTRICAL CHARACTERISTICS
(V
DC ELECTRICAL CHARACTERISTICS
(V
WARNING: Negative undershoots below -0.3V while the part is in battery-backed mode may cause loss of data.
Supply Voltage
Logic 1 Input
Logic 0 Input
V
Input Leakage (SCL)
I/O Leakage (SDA, SQW/OUT)
Logic 0 Output (I
Active Supply Current
(f
Standby Current
V
Power-Fail Voltage (V
V
SQW/OUT OFF
V
SQW/OUT ON (32kHz)
V
(Oscillator Off)
A
CC
CC
SCL
BAT
BAT
BAT
BAT
BAT
= 0°C to +70°C, T
= 4.5V to 5.5V; T
= 0V, V
Battery Voltage
= 100kHz)
Leakage Current
Current (OSC ON);
Current (OSC ON);
Data-Retention Current
Commercial .......................................................................................................................... 0°C to +70°C
Industrial ............................................................................................................................ -40°C to +85°C
PARAMETER
PARAMETER
PARAMETER
BAT
= 3.0V; T
OL
= 5mA)
BAT
A
A
= -40°C to +85°C.) (Notes 1, 2)
= 0°C to +70°C, T
= 3.0V)
A
= 0°C to +70°C, T
SYMBOL
SYMBOL
SYMBOL
I
I
BATLKG
V
I
I
BATDR
V
I
I
V
V
V
BAT1
BAT2
V
I
CCA
CCS
I
BAT
LO
CC
LI
OL
PF
IH
IL
A
= -40°C to +85°C.) (Notes 1, 2)
A
= -40°C to +85°C.) (Notes 1, 2)
(Note 3)
2 of 14
CONDITIONS
CONDITIONS
CONDITIONS
DS1307 64 x 8, Serial, I
1.216 x
MIN
-0.3
V
MIN
MIN
4.5
2.2
2.0
-1
-1
BAT
TYP
1.25 x
5.0
TYP
V
TYP
300
480
3
10
5
BAT
V
2
C Real-Time Clock
CC
1.284 x
MAX
+0.8
MAX
MAX
5.5
3.5
V
200
500
800
100
0.4
1.5
50
+ 0.3
1
1
BAT
UNITS
UNITS
UNITS
mA
µA
µA
µA
nA
nA
nA
nA
V
V
V
V
V
V