m41t83 STMicroelectronics, m41t83 Datasheet - Page 45

• Manufacturer Part Number: m41t83
• Description: Serial I 2c Bus Rtc With Battery Switchover
• Manufacturer: STMicroelectronics

5
DC and AC parameters
This section summarizes the operating and measurement 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 Measurement Conditions listed in the
relevant tables. Designers should check that the operating conditions in their projects match
the measurement conditions when using the quoted parameters.
Table 18.
1. Output Hi-Z is defined as the point where data is no longer driven.
Figure 23. Measurement AC I/O waveform
Table 19.
1. Effective capacitance measured with power supply at 3.6V; sampled only, not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs deselected.
Supply voltage (V
Ambient operating temperature (T
Load capacitance (C
Input rise and fall times
Input pulse voltages
Input and output timing ref. voltages
Symbol
C
OUT
C
t
LP
IN
(3)
Operating and AC measurement conditions
Capacitance
Input capacitance
Output capacitance
Low-pass filter input time constant (SDA and SCL)
CC
)
L
)
0.8V CC
0.2V CC
Parameter
A
Parameter
)
(1,2)
(1)
0.7V CC
0.3V CC
AI02568
Min
0.2V
0.3V
2.38V to 5.5V
–40 to 85°C
CC
CC
M41T8x
Max
10
50
50pF
7
to 0.8 V
to 0.7 V
5ns
Unit
CC
CC
pF
pF
ns
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