m41t66 STMicroelectronics, m41t66 Datasheet - Page 25

• Manufacturer Part Number: m41t66
• Description: Real-time Clocks
• Manufacturer: STMicroelectronics

M41T66
Table 9.
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.
1. Valid for ambient operating temperature: T
2. Oscillator startup guaranteed at 1.6 V only at 25°C.
3. Guaranteed by design.
V
Sym
I
I
V
V
CC
V
CC1
CC2
V
I
I
LO
OL
PU
LI
IH
IL
(2)
Symbol
C
OUT
C
t
Operating voltage
Supply current
Supply current (standby)
Input low voltage
Input high voltage
Output low voltage
Pull-up supply voltage
(open drain)
Input leakage current
Output leakage current
Square wave duty cycle
LP
IN
(3)
Capacitance
DC characteristics
Parameter
Input capacitance
Output capacitance
Low-pass filter input time constant (SDA and SCL)
(3)
≥ V
≤ V
SCL = 0 Hz
all inputs
A
CC
SS
= –40 to 85°C; V
SCL = 400 kHz
+ 0.2 V
– 0.2 V
(no load)
Parameter
V
Clock
CC
0V ≤ V
I
Test condition
(SQW, IRQ/OUT)
2
= 4.4 V, I
0V ≤ V
C bus (400 kHz)
SQW off
IRQ/OUT
No load
SQW
CC
(1)(2)
OUT
IN
= 1.5 V to 4.4 V (except where noted).
OL
≤ V
≤ V
= 1.0 mA
–20°C to 85°C
–40°C to 85°C
CC
3.0 V at 25°C
1.8 V at 25°C
(1)
CC
0°C to 85°C
4.4 V
3.6 V
3.0 V
2.5 V
2.0 V
4.4 V
3.6 V
0.7V
–0.2
Min
1.0
1.3
1.5
1.3
40
CC
DC and AC parameters
Min
Typ
550
525
450
50
35
30
20
50
V
Max
0.3 V
10
50
CC
7
1100
Max
V
100
900
4.4
4.4
4.4
4.4
0.4
4.4
70
±1
±1
60
CC
+0.3
CC
Unit
pF
pF
ns
Unit
25/33
µA
µA
µA
µA
µA
nA
nA
nA
nA
µA
µA
%
V
V
V
V
V
V
V
V
V