EM3027
Parameter
Dynamic current
SPI Interface
Symbol
Test Conditions
SCK = 200 kHz
VCC
Temp. °C
Min
Typ
Max
Unit
IDD
1.4
-40 to 125
18
(See Note 2)
SCK = 1 MHz
(See Note 2)
SCK = 1 MHz
(See Note 2)
Relative to VCC
3.3
5.0
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
55
75
µA
Low supply detection
level1
Low supply detection
level2
Vlow1
Vlow2
Vhyst
1.8
1.0
2.1
1.4
V
V
Relative to VCC
Switchover hysteresis
VCC with respect to VBack
3.0V
=
20
mV
Input Parameters
Low level input voltage
High level input voltage
VIL
VIH
CS, CLKOE, SI, SCL/SCK,
SDA
-40 to 125
-40 to 125
0.2VCC
1.4 to 5.0
1.4 to 5.0
V
0.8VCC
-1.5
Input Leakage
IIN
0.0 < VIN < VCC
-40 to 125
-40 to 125
1.5
0.2
µA
Output Parameters
Low level output voltage
High level output
voltage
VOL
VOH
IOL = 0.4 mA
IOH = 0.1 mA
1.4
3.3
V
V
1.0
2.7
4.5
Low level output voltage
High level output
voltage
VOL
VOH
IOL = 1.5 mA
IOH = 1.5 mA
0.25
0.8
-40 to 125
Low level output voltage
High level output
voltage
VOL
VOH
IOL = 5.0 mA
IOH = 2.0 mA
5.0
1.4 to 5.0
5.0
-40 to 125
-40 to 125
V
Output HiZ leakage on
INT
Oscillator
Start-up voltage
Start-up time
-1.5
1.2
1.5
µA
ILEAK_OUT
INT not active
TSTA < 10s
VSTA
TSTA
-40 to 125
-40 to 125
V
s
1
3
2
Frequency stability over
voltage
1.8V ≤ VCC ≤ 5.5V, TA =
+25°C
ppm/
V
f/(f V)
25
0.5
Input capacitance on X1
CIN
TA = +25°C, f = 32.768kHz,
Vmeas = 0.3V (Note 3)
TA = +25°C, f = 32.768kHz,
Vmeas = 0.3V (Note 3)
25
25
16.5
15.0
pF
Output capacitance
on X2
COUT
Trickle Charger
Current limiting
Resistors
R80k
R20k
R5k
VCC =5.0V, VBack=3.0V
VCC =5.0V, VBack=3.0V
VCC =5.0V, VBack=3.0V
VCC =5.0V, VBack=3.0V
25
25
25
25
80
20
kΩ
5.0
1.5
R1.5k
Thermometer
Precision
40
+/- 1
+/- 4
+/- 2
+/- 10
TE
Vlow1 < VCC ≤ 5.5V
°C
-40 to 125
Table 7
The following parameters are tested during production test: IDD, Vlow1, Vlow2, VIL, VIH, VOL, VOH, IIN, ILEAK_OUT
The parameters ICC, Vhyst, VSTA, TSTA, CIN, COUT, f/(f*V), TE are characterised during the qualification of the IC.
Notes:
1. SDA = VSS, continuous clock applied at SCL (VIL_SCL < 0.05V, VIH_SCL > 0.95VCC
)
2. CS, SI = VCC, continuous clock applied at SCK, SO not connected. (VIL_SCK < 0.05VCC, VIH_SCK > 0.95VCC
)
Note that there is a 100kΩ pull-down resistor on CS.
3. Vmeas : Peak to peak amplitude during capacitance measurement
4. Below 0°C, a negative slope on Vcc will stop the oscillator during a time which may be as long as 1 second. This is not
dependent on slope and occurs with a slew rate as low as 2V/sec.
5. Some chip versions do not support “Trickle Charger” and “Switchover” features.
5
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Copyright 2013, EM Microelectronic-Marin SA
3027-DS.doc, Version 8.0, 25-Jan-13
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