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M41T256Y

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-

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.

Table 6. DC and AC Measurement Conditions

Figure 16. AC Testing Input/Output Waveforms

Table 7. Capacitance

Note: 1. Effective capacitance measured with power supply at 5V; sampled only, not 100% tested.

2. At 25°C, f = 1MHz.

3. Outputs deselected.

Parameter

M41T256Y

4.5 to 5.5V

Ambient Operating Temperature

–25 to 70°C

100pF

Input Rise and Fall Times

≤ 50ns

Input Pulse Voltages

Input and Output Timing Ref. Voltages

AI02568

0.8VCC

0.2VCC

0.7VCC

0.3VCC

Symbol

Min

Max

Unit

Input Capacitance

7

pF

Input Capacitance (Tamper Pin)

1000

pF

(3)

Input / Output Capacitance

10

pF

Low-pass filter input time constant (SDA and SCL)

50

ns