Datasheet

M41T66 DC and AC parameters
Doc ID 15108 Rev 2 25/34
Table 9. Capacitance
Symbol Parameter
(1)(2)
Min Max Unit
C
IN
Input capacitance 7 pF
C
OUT
(3)
Output capacitance 10 pF
t
LP
Low-pass filter input time constant (SDA and SCL) 50 ns
1. Effective capacitance measured with power supply at 3.6 V; sampled only, not 100% tested.
2. At 25 °C, f = 1 MHz.
3. Outputs deselected.
Table 10. DC characteristics
Sym Parameter Test condition
(1)
Min Typ Max Unit
V
CC
(2)
Operating voltage
Clock
0 °C to 85 °C 1.0 4.4 V
–20 °C to 85 °C 1.3 4.4 V
–40 °C to 85 °C 1.5 4.4 V
I
2
C bus (400 kHz) 1.3 4.4 V
I
CC1
Supply current
SCL = 400 kHz
(no load)
4.4 V 100 µA
3.6 V 50 70 µA
3.0 V 35 µA
2.5 V 30 µA
2.0 V 20 µA
I
CC2
Supply current (standby)
SCL = 0 Hz
all inputs
≥ V
CC
– 0.2 V
≤ V
SS
+ 0.2 V
SQW off
4.4 V 1100 nA
3.6 V 550 900 nA
3.0 V at 25 °C 525 nA
1.8 V at 25 °C 450 nA
V
IL
Input low voltage –0.2 0.3 V
CC
V
V
IH
Input high voltage 0.7V
CC
V
CC
+0.3 V
V
OL
Output low voltage
V
CC
= 4.4 V, I
OL
= 1.0 mA
(SQW, IRQ/OUT)
0.4 V
V
PU
Pull-up supply voltage
(open drain)
IRQ
/OUT 4.4 V
SQW V
CC
V
I
LI
Input leakage current 0V ≤ V
IN
≤ V
CC
±1 µA
I
LO
Output leakage current 0V ≤ V
OUT
≤ V
CC
±1 µA
Square wave duty cycle
(3)
No load 40 50 60 %
1. Valid for ambient operating temperature: T
A
= –40 to 85 °C; V
CC
= 1.5 V to 4.4 V (except where noted).
2. Oscillator startup guaranteed at 1.6 V only at 25 °C.
3. Guaranteed by design.