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DS3234 Datasheet(PDF) 2 Page - Maxim Integrated Products

Part No. DS3234
Description  Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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DS3234 Datasheet(HTML) 2 Page - Maxim Integrated Products

 
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Extremely Accurate SPI Bus RTC with
Integrated Crystal and SRAM
2
_____________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING CONDITIONS
(TA = -40°C to +85°C, unless otherwise noted.) (Notes 1, 2)
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.
Voltage Range on Any Pin Relative to Ground......-0.3V to +6.0V
Operating Temperature Range
(noncondensing) .............................................-40°C to +85°C
Junction Temperature ......................................................+125°C
Storage Temperature Range ...............................-40°C to +85°C
Soldering Temperature
(leads, 10s) ...........................................................+260°C/10s
Soldering Temperature (reflow, 2 times max) .......See IPC/JEDEC
J-STD-020 Specification
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
2.0
3.3
5.5
Supply Voltage
VBAT
2.0
3.0
3.8
V
Logic 1 Input CS, SCLK, DIN
VIH
0.7 x
VCC
VCC +
0.3
V
2.0V
≤ VCC ≤ 3.63V
-0.3
+0.2 x
VCC
Logic 0 Input CS, SCLK, DIN,
RST
VIL
3.63V < VCC
≤ 5.5V
-0.3
+0.7
V
Pullup Voltage INT/SQW
VPU
VCC = 0V
5.5
V
ELECTRICAL CHARACTERISTICS
(VCC = 2.0V to 5.5V, VCC = active supply (see Table 1), TA = -40°C to +85°C, unless otherwise noted.) (Typical values are at VCC =
3.3V, VBAT = 3.0V, and TA = +25°C, unless otherwise noted. TCXO operation guaranteed from 2.3V to 5.5V on VCC and 2.3V to 3.8V on
VBAT.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC = 3.63V
400
Active Supply Current
ICCA
SCLK = 4MHz, BSY = 0
(Notes 3, 4)
VCC = 5.5V
700
µA
VCC = 3.63V
120
Standby Supply Current
ICCS
CS = VIH, 32kHz output off,
SQW output off
(Note 4)
VCC = 5.5V
160
µA
VCC = 3.63V
500
Temperature Conversion Current
ICCSCONV
SPI bus inactive, 32kHz
output off, SQW output off
VCC = 5.5V
600
µA
Power-Fail Voltage
VPF
2.45
2.575
2.70
V
VBAT Leakage Current
IBATLKG
25
100
nA
(VCC = 2.0V to 5.5V, TA = -40°C to +85°C, unless otherwise noted.) (Notes 1 and 2)
Logic 1 Output, 32kHz
IOH = -500µA
IOH = -250µA
IOH = -125µA
VOH
VCC > 3.63V,
3.63V > VCC > 2.7V,
2.7V > (VCC or VBAT) > 2.0V
(BB32kHz = 1)
0.85 x VCC
V


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