M41T0 Datasheet, PDF (7/20 Pages) STMicroelectronics – SERIAL REAL-TIME CLOCK

M41T0
DC AND AC PARAMETERS
This section summarizes the operating and mea-
surement conditions, as well as the DC and AC
characteristics of the device. The parameters in
the following DC and AC Characteristic tables are
derived from tests performed under the Measure-
ment Conditions listed in the relevant tables. De-
signers should check that the operating conditions
in their projects match the measurement condi-
tions when using the quoted parameters.
Table 3. Operating and AC Measurement Conditions
Parameter
Supply Voltage (V_CC)
Ambient Operating Temperature (T_A)
Load Capacitance (C_L)
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
Note: Output Hi-Z is defined as the point where data is no longer driven.
M41T0
2.0 to 5.5
–40 to 85
100
≤5
0.2V_CC to 0.8V_CC
0.3V_CC to 0.7V_CC
Unit
V
°C
pF
ns
V
V
Figure 5. AC Testing Input/Output Waveform
0.8VCC
0.2VCC
0.7VCC
0.3VCC
AI02568
Table 4. Capacitance
Symbol
Parameter^(1,2)
Min
C_IN
Input Capacitance (SCL)
C_OUT(3)
Output Capacitance (SDA, OUT)
t_LP
Low-pass filter input time constant (SDA and SCL)
Note: 1. Effective capacitance measured with power supply at 5V; sampled only, not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs deselected.
Max
7
10
50
Unit
pF
pF
ns
7/20