M41ST84WMH ST Microelectronics, M41ST84WMH Datasheet - Page 7

• Manufacturer Part Number: M41ST84WMH
• Description: 5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS
• Manufacturer: ST Microelectronics

DC AND AC PARAMETERS
This section summarizes the operating and mea-
surement 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 Measure-
Table 3. DC and AC Measurement Conditions
Note: Output Hi-Z is defined as the point where data is no longer driven.
Figure 8. AC Testing Input/Output Waveforms
Note: 50pF for M41ST84W.
Table 4. Capacitance
Note: 1. Effective capacitance measured with power supply at 5V. Sampled only, not 100% tested.
V
Ambient Operating Temperature
Load Capacitance (C
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
CC
Symbol
0.8V CC
0.2V CC
C
C
t
Supply Voltage
IO
2. At 25°C, f = 1MHz.
3. Outputs deselected.
LP
IN
(3)
Input Capacitance
Input / Output Capacitance
Low-pass filter input time constant (SDA and SCL)
L
)
Parameter
Parameter
0.7V CC
0.3V CC
AI02568
(1,2)
ment Conditions listed in the relevant tables. De-
signers should check that the operating conditions
in their projects match the measurement condi-
tions when using the quoted parameters.
0.2 to 0.8V
0.3 to 0.7V
–40 to 85°C
M41ST84Y
4.5 to 5.5V
100pF
50ns
CC
CC
Min
M41ST84Y, M41ST84W
0.2 to 0.8V
0.3 to 0.7V
M41ST84W
–40 to 85°C
2.7 to 3.6V
Max
10
50
7
50pF
50ns
CC
CC
Unit
pF
pF
ns
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