M41ST87W datasheet(42/54 Pages) STMICROELECTRONICS

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DC and AC parameters

M41ST87W

42/54

DocID9497 Rev 11

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 17: DC and AC measurement conditions

Parameter

M41ST87Y

M41ST87W

VCC supply voltage

4.5 to 5.5 V

2.7 to 3.6 V

Ambient operating temperature

–40 to 85 °C

Load capacitance (CL)

100 pF

50 pF

Input rise and fall times

≤ 50 ns

Input pulse voltages

0.2 to 0.8VCC

Input and output timing ref. voltages

0.3 to 0.7VCC

Note: Output high Z is defined as the point where data is no longer driven.

Figure 27: AC testing input/output waveforms

Table 18: Capacitance

Symbol

Parameter

(1)(2)

Min

Max

Unit

CIN

Input capacitance

COUT

(3)

Output capacitance

tLP

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

Notes:

(1)

At 25 °C, f = 1 MHz.

(2)

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

(3)

Outputs are deselected.

0.8VCC

0.2VCC

0.7VCC

0.3VCC

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