M41ST85WMH6 STMicroelectronics, M41ST85WMH6 Datasheet - Page 30

• Manufacturer Part Number: M41ST85WMH6
• Description: Real Time Clock RO 511-M41ST85WMH6E
• Manufacturer: STMicroelectronics

Specifications of M41ST85WMH6

• Function: Clock, Calendar, Supervisor, Alarm
• Rtc Memory Size: 64 B
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: SO-28
• Time Format: HH:MM:SS:hh
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC and AC parameters
5
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 9.
Output High Z is defined as the point where data is no longer driven.
Figure 18. AC testing input/output waveforms
Table 10.
1. Effective capacitance measured with power supply at 5 V. Sampled only, not 100% tested.
2. At 25°C, f = 1 MHz.
3. Outputs are deselected.
V
Ambient operating temperature
Load capacitance (C
Input rise and fall times
Input pulse voltages
Input and output timing ref. voltages
CC
Symbol
C
OUT
C
supply voltage
t
LP
IN
(3)
DC and AC measurement conditions
Capacitance
Input capacitance
Output capacitance
Low-pass filter input time constant (SDA and SCL)
L
)
0.8V CC
0.2V CC
Parameter
Parameter
(1)(2)
0.7V CC
0.3V CC
AI02568
Min
0.2 to 0.8V
0.3 to 0.7V
M41ST85W
–40 to 85°C
2.7 to 3.6 V
Max
10
50
7
50 pF
50 ns
M41ST85W
CC
CC
Unit
pF
pF
ns