M41T65 STMICROELECTRONICS [STMicroelectronics], M41T65 Datasheet - Page 32

• Manufacturer Part Number: M41T65
• Description: Serial real-time clocks with alarm
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

DC and AC parameters
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Note:
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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 12.
1. Output Hi-Z is defined as the point where data is no longer driven.
Figure 24. AC measurement I/O waveform
Figure 25. Crystal isolation example
Substrate pad should be tied to V
Supply voltage (V
Ambient operating temperature (T
Load capacitance (C
Input rise and fall times
Input pulse voltages
Input and output timing ref. voltages
Operating and AC measurement conditions
CC
Local Grounding Plane
(Layer 2)
)
L
Crystal
)
0.8V CC
0.2V CC
Parameter
Doc ID 10397 Rev 14
A
)
SS
.
XI
XO
GND
(1)
0.7V CC
0.3V CC
0.2 V
0.3 V
1.3 V to 4.4 V
–40 to 85 °C
M41T62/63/64/65
M41T6x
CC
CC
≤ 5 ns
50 pF
to 0.8 V
to 0.7 V
CC
CC
AI09127
AI02568