M41T56_07 STMICROELECTRONICS [STMicroelectronics], M41T56_07 Datasheet - Page 17

• Manufacturer Part Number: M41T56_07
• Description: Serial real-time clock with 56 bytes NVRAM
• Manufacturer: STMICROELECTRONICS [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
Operating and AC measurement
conditions in their projects match the measurement conditions when using the quoted
parameters.
Table 5.
1. Output Hi-Z is defined as the point where data is no longer driven.
Figure 13. AC measurement I/O waveform
Table 6.
1. Effective capacitance measured with power supply at 5V; sampled, 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 (SCL)
Output capacitance (SDA, FT/OUT)
Low-pass filter input time constant (SDA and SCL)
CC
)
L
)
Parameter
0.8V CC
0.2V CC
Parameter
A
)
conditions. Designers should check that the operating
(1)(2)
(1)
4.5 to 5.5
–40 to 85
0.7V CC
0.3V CC
AI02568
0.25
Value
0 to 3
Min
100
≤ 5
1.5
Max
10
7
1
Unit
Table 5:
pF
°C
ns
V
V
V
Unit
pF
pF
µs
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