m41st84w STMicroelectronics, m41st84w Datasheet - Page 23

• Manufacturer Part Number: m41st84w
• Description: 3.0/3.3v I 2c Serial Rtc With Supervisory Functions
• Manufacturer: STMicroelectronics

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-
Table 10. DC and AC Measurement Conditions
Note: Output Hi-Z is defined as the point where data is no longer driven.
Figure 18. AC Testing Input/Output Waveforms
Note: 50pF for M41ST84W.
Table 11. Capacitance
Note: 1. Effective capacitance measured with power supply at 3V. Sampled only, not 100% tested.
V
Ambient Operating Temperature
Load Capacitance (C
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
CC
Symbol
0.8V CC
0.2V CC
C
C
t
Supply Voltage
IO
2. At 25°C, f = 1MHz.
3. Outputs deselected.
LP
IN
(3)
Input Capacitance
Input / Output Capacitance
Low-pass filter input time constant (SDA and SCL)
L
)
Parameter
Parameter
0.7V CC
0.3V CC
AI02568
(1,2)
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.
Min
0.2 to 0.8V
0.3 to 0.7V
–40 to 85°C
M41ST84W
2.7 to 3.6V
Max
50pF
10
50
50ns
7
M41ST84W
CC
CC
Unit
pF
pF
ns
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