DS3232 Maxim, DS3232 Datasheet - Page 2

• Manufacturer Part Number: DS3232
• Description: The DS3232 is a low-cost temperature-compensated crystal oscillator (TCXO) with a very accurate, temperature-compensated, integrated real-time clock (RTC) and 236 bytes of battery-backed SRAM
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Voltage Range on V
Junction-to-Ambient Thermal Resistance (θ
Junction-to-Case Thermal Resistance (θ
Operating Temperature Range
RECOMMENDED OPERATING CONDITIONS
(T
ELECTRICAL CHARACTERISTICS
(V
3.3V, V
Extremely Accurate I
Integrated Crystal and SRAM
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
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
absolute maximum rating conditions for extended periods may affect device reliability.
2
Supply Voltage
Logic 1 Input SDA, SCL
Logic 0 Input SDA, SCL
Active Supply Current
Standby Supply Current
Temperature Conversion Current
Power-Fail Voltage
ACTIVE SUPPLY (Table 1 ) (2.3V to 5.5V, T
Logic 1 Output, 32kHz
I
I
I
A
CC
OH
OH
OH
INT/SQW Relative to Ground.............................-0.3V to +6.0V
(noncondensing) .............................................-40°C to +85°C
= -40°C to +85°C, unless otherwise noted.) (Notes 2, 3)
_____________________________________________________________________
= 2.3V to 5.5V, V
= -1mA
= -0.75mA
= -0.14mA
BAT
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
PARAMETER
PARAMETER
= 3.0V, and T
CC
, V
CC
BAT
A
= active supply (see Table 1), T
= +25°C, unless otherwise noted.) (Notes 2, 3)
, 32kHz, SCL, SDA, RST,
SYMBOL
I
SYMBOL
JC
CCSCONV
V
V
I
) (Note 1)..........24°C/W
I
V
V
V
CCA
V
BAT
CCS
JC
CC
IH
OH
IL
PF
) (Note 1)..55.1°C/W
A
= -40°C to +85°C, unless otherwise noted) (Note 2)
32kHz output off
(Notes 4, 5)
I
output off, SQW output off
(Note 5)
I
output off, SQW output off
Active supply > 3.3V,
3.3V > active supply > 2.7V,
2.7V > active supply > 2.3V
2
2
C bus inactive, 32kHz
C bus inactive, 32kHz
A
2
= -40°C to +85°C, unless otherwise noted.) (Typical values are at V
C RTC with
CONDITIONS
CONDITIONS
Junction Temperature ......................................................+125°C
Storage Temperature Range ...............................-40°C to +85°C
Lead Temperature (soldering, 10s) .................................+260°C
Soldering Temperature (reflow, 2 times max) ....................+260°C
(See the Handling, PC Board Layout, and Assembly section.)
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
= 3.3V
= 5.5V
= 3.3V
= 5.5V
= 3.3V
= 5.5V
0.7 x
MIN
V
-0.3
2.3
2.3
MIN
2.45
2.0
CC
TYP
2.575
TYP
3.3
3.0
+0.3 x
V
MAX
V
MAX
CC
2.70
5.5
5.5
0.3
200
325
120
160
500
600
CC
+
UNITS
UNITS
µA
µA
µA
V
V
V
V
V
CC
=