R
EM3027
Parameter
Dynamic current
SPI Interface
Symbol
Test Conditions
SCK = 200 kHz
VCC
Temp. °C
-40 to 85
-40 to 125
-40 to 85
-40 to 125
-40 to 85
-40 to 125
Min
Typ
Max
14
18
50
55
Unit
IDD
1.4
(See Note 2)
SCK = 1 MHz
(See Note 2)
SCK = 1 MHz
(See Note 2)
Relative to VCC
3.3
5.0
µA
65
75
Low supply detection
level1
Low supply detection
level2
Vlow1
Vlow2
Vhyst
-40 to 125
-40 to 125
-40 to 125
1.8
1.0
2.1
1.4
V
V
Relative to VCC
Switchover hysteresis
VCC with respect to VBack
3.0V
=
1.4 to 5.0
1.4 to 5.0
1.4 to 5.0
20
mV
Input Parameters
Low level input voltage
High level input voltage
VIL
VIH
CS, CLKOE, SI, SCL/SCK,
SDA
0.2VCC
V
0.8VCC
-40 to 85
-40 to 125
-1
-1.5
1
1.5
Input Leakage
IIN
0.0 < VIN < VCC
µA
Output Parameters
Low level output voltage
High level output
voltage
VOL
VOH
IOL = 0.4 mA
IOH = 0.1 mA
0.2
0.25
0.8
1.4
3.3
-40 to 125
-40 to 125
-40 to 125
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
Low level output voltage
High level output
voltage
VOL
VOH
IOL = 5.0 mA
IOH = 2.0 mA
5.0
V
-40 to 85
-40 to 125
-1
-1.5
1
1.5
Output HiZ leakage on
INT
Oscillator
Start-up voltage
Start-up time
1.4 to 5.0
µA
ILEAK_OUT
INT not active
TSTA < 10s
VSTA
TSTA
-40 to 125
-40 to 85
1.2
V
s
0.5
1
3
3
5.0
-40 to 125
s
Frequency stability over
voltage
1.8V ≤ VCC ≤ 5.5V, TA =
+25°C
ppm/
V
Δf/(fΔV)
25
0.5
2
Input capacitance on X1
CIN
TA = +25°C, f = 32.768kHz,
25
25
13.5
13.5
Vmeas = 0.3V (Note 3)
pF
Output capacitance
on X2
COUT
TA = +25°C, f = 32.768kHz,
Vmeas = 0.3V (Note 3)
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
25
25
25
25
80
20
kΩ
5.0
1.5
R1.5k
VCC =5.0V, VBack=3.0V
Thermometer
Precision
-40 to 85
-40 to 125
+/- 1
+/- 1
+/- 3
+/- 6
TE
Vlow1 < VCC ≤ 5.5V
°C
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, Δf/(f*ΔV), 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
Copyright © 2009, EM Microelectronic-Marin SA
12/09 – rev D
www.emmicroelectronic.com
5
EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
