DS1678 Datasheet, PDF (2/25 Pages) Maxim Integrated Products – Real-Time Event Recorder

DS1678 Real-Time Event Recorder
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………..-0.3V to +6.0V
Operating Temperature Range (noncondensing)…………………………………………...-40°C to +85°C
Storage Temperature Range…………………………………………………………….…-55°C to +125°C
Soldering Temperature………………………………………….See IPC/JEDEC J-STD-020 Specification
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect device
reliability.
RECOMMENDED DC OPERATING CONDITIONS
(V_CC = V_CC(MIN) to V_CC(MAX), T_A = -40°C to +85°C, unless otherwise noted. Typical values are at nominal
supply voltage and T_A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Power-Supply Voltage
Input Logic 1
Input Logic 0
Pullup Resistor Value
Battery Voltage
V_CC
V_IH
V_IL
V_PU
V_BAT
(Note 2)
(Note 2)
(Note 2)
V_CC = 0V (Note 2)
(Note 2)
4.5
5.0
5.5
V
2.2
V_CC +
0.3
V
-0.3
+0.8
V
5.5
V
2.6
3.5
V
DC ELECTRICAL CHARACTERISTICS
(V_CC = V_CC(MIN) to V_CC(MAX), T_A = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
Input Leakage
SDA, SCL
INT
Logic 0 Output
I_OL = 4mA (SDA, INT)
Active Supply Current
Power-Fail Voltage (Note 2)
LOBAT Trip Point
I_LI
V_OL
I_CCA
V_PF
LOBAT_TRP
SDA output off
INT output off
V_BAT = 3.0V
DC ELECTRICAL CHARACTERISTICS
(V_CC = 0V, T_A = -40°C to +85°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
V_BAT Current
(Oscillator On)
I_OSC
V_BAT Current
(Oscillator Off)
I_BAT
MIN
-1
TYP
10
MAX UNITS
+1
µA
0.4
V
1
2
mA
1.216 1.25 x 1.284
x V_BAT V_BAT x V_BAT
V
1.35
MIN
TYP
300
MAX UNITS
500
nA
50
150
nA
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