M41T60_05 STMICROELECTRONICS [STMicroelectronics], M41T60_05 Datasheet - Page 16

• Manufacturer Part Number: M41T60_05
• Description: Serial access real-time clock
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

DC and AC parameters
5
Note:
Note:
16/24
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 5. Operating and AC Measurement Conditions
Output Hi-Z is defined as the point where data is no longer driven.
Substrate pad should be tied to V
Table 6. Capacitance
1. Effective capacitance measured with power supply at 3.6V; sampled only, not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs deselected.
Figure 13. AC testing I/O waveform
Supply Voltage (V
Ambient Operating Temperature (T
Load Capacitance (C
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
0.8V CC
0.2V CC
Symbol
C
OUT
C
t
LP
IN
(3)
Input Capacitance (SCL)
Output Capacitance (SDA, OUT)
Low-pass filter input time constant (SDA and
SCL)
CC
)
L
)
Parameter
Parameter
A
)
SS
.
0.7V CC
0.3V CC
AI02568
(1)(2)
Figure 14. Crystal isolation example
Local Grounding Plane
(Layer 2)
Crystal
Min
XI
XO
GND
0.2V
0.3V
Max
1.3V to 4.4V
10
50
–40 to 85°C
7
CC
CC
M41T60
50pF
≤ 5ns
to 0.8 V
to 0.7 V
AI09127
M41T60
Unit
CC
CC
pF
pF
ns