M24C01-W datasheet(5/41 Pages) STMICROELECTRONICS

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2.6.2

Power-up conditions

The VCC voltage has to rise continuously from 0 V up to the minimum VCC operating voltage (see Operating

conditions in Section 8 DC and AC parameters).

2.6.3

Device reset

In order to prevent inadvertent write operations during power-up, a power-on-reset (POR) circuit is included.

At power-up, the device does not respond to any instruction until VCC has reached the internal reset

threshold voltage. This threshold is lower than the minimum VCC operating voltage (see Operating conditions

in Section 8 DC and AC parameters). When VCC passes over the POR threshold, the device is reset and enters

the standby power mode; however, the device must not be accessed until VCC reaches a valid and stable DC

voltage within the specified [VCC(min), VCC(max)] range (see Operating conditions in Section 8 DC and AC

parameters).

In a similar way, during power-down (continuous decrease in VCC), the device must not be accessed when VCC

drops below VCC(min). When VCC drops below the power-on-reset threshold voltage, the device stops responding

to any instruction sent to it.

2.6.4

Power-down conditions

During power-down (continuous decrease in VCC), the device must be in the standby power mode (mode reached

after decoding a stop condition, assuming that there is no internal write cycle in progress).

M24C01/02-W M24C01/02-R M24C02-F

Supply voltage (VCC)

DS9398 - Rev 7

page 5/41

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