DS3232 Maxim, DS3232 Datasheet - Page 3

• 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

ELECTRICAL CHARACTERISTICS (continued)
(V
3.3V, V
ELECTRICAL CHARACTERISTICS
(V
Active Battery Current
(Note 5)
Timekeeping Battery Current
(Note 5)
Temperature Conversion Current
Data-Retention Current
Logic 0 Output, INT/SQW, SDA
Logic 0 Output, RST, 32kHz
Output Leakage Current 32kHz,
INT/SQW, SDA
Input Leakage SCL
RST Pin I/O Leakage
TCXO
Output Frequency
Duty Cycle
(Revision A3 Devices)
Frequency Stability vs.
Temperature
Frequency Stability vs. Voltage
Trim Register Frequency
Sensitivity per LSB
Temperature Accuracy
Crystal Aging
CC
CC
= 2.3V to 5.5V, V
= 0V, V
BAT
PARAMETER
PARAMETER
= 3.0V, and T
BAT
= 2.3V to 5.5V, T
CC
A
= active supply (see Table 1), T
= +25°C, unless otherwise noted.) (Notes 2, 3)
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
SYMBOL
SYMBOL
I
Δf/f
BATTDR
Δf/LSB
I
Temp
I
I
BATTC
Extremely Accurate I
f
BATA
Δf/f
BATT
V
V
Δf/V
OUT
I
I
I
LO
OL
OL
OL
LI
OUT
0
_____________________________________________________________________
EO SC = 0, BBS Q W = 0,
S C L = 400kH z, BB32kH z = 0
EOSC = 0, BBSQW = 0,
SCL = SDA = 0V,
BB32kHz = 0,
CRATE0 = CRATE1 = 0
EOSC = 0, BBSQW = 0, SCL = SDA = 0V
EOSC = 1, SCL = SDA = 0V, +25°C
I
I
Output high impedance
RST high impedance (Note 6)
V
2.97V ≤ V
V
V
V
Specified at:
V
After reflow,
not production tested
OL
OL
CC
CC
BAT
CC
CC
Integrated Crystal and SRAM
= 3mA
= 1mA
= 3.3V or V
= 3.3V or
= 3.3V or V
= 3.3V or V
= 3.3V
A
CC
= -40°C to +85°C, unless otherwise noted.) (Typical values are at V
< 3.63
CONDITIONS
CONDITIONS
BAT
BAT
BAT
= 3.3V
= 3.3V
= 3.3V
0°C to +40°C
- 40° C to 0°C and
+ 40° C to + 85°C
-40°C
+25°C
+70°C
+85°C
First year
0–10 years
V
V
V
V
BAT
BAT
BAT
BAT
= 3.3V
= 5.5V
= 3.4V
= 5.5V
-200
MIN
MIN
-3.5
31
-1
-1
-2
-3
2
C RTC with
32.768
±1.0
±5.0
TYP
TYP
1.5
1.5
0.7
0.1
0.4
0.8
0
1
MAX
MAX
+3.5
+10
200
600
100
0.4
0.4
2.5
3.0
+1
+1
+2
+3
69
80
UNITS
UNITS
ppm/V
ppm
ppm
ppm
kHz
µA
µA
µA
°C
µA
µA
µA
nA
%
V
V
CC
3
=