M41T256YMT7F datasheet(23/30 Pages) STMICROELECTRONICS

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M41T256Y

DC and AC parameters

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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 Table 6:

DC and AC measurement conditions. Designers should check that the operating conditions

in their projects match the measurement conditions when using the quoted parameters.

Table 6.

DC and AC measurement conditions

Figure 13.

AC testing input/output waveforms

Table 7.

Capacitance

Parameter

M41T256Y

VCC Supply voltage

4.5 to 5.5V

Ambient operating temperature

–25 to 70°C

Load capacitance (CL)

100pF

Input rise and fall times

≤ 50ns

Input pulse voltages

0.2VCC to 0.8VCC

Input and output timing ref. voltages

0.3VCC to 0.7VCC

Symbol

Parameter(1) and (2)

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

At 25°C, f = 1MHz.

Min

Max

Unit

CIN

Input capacitance

Input capacitance (tamper pin)

1000

CIO

(3)

Outputs deselected.

Input / output capacitance

tLP

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

AI02568

0.8VCC

0.2VCC

0.7VCC

0.3VCC

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