AT24C01D datasheet(15/26 Pages) ATMEL

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AT24C01D and AT24C02D [DATASHEET]

Atmel-8871B-SEEPROM-AT24C01D-02D-Datasheet_032014

8.5

Pin Capacitance(1)

Note:

This parameter is characterized but is not 100% tested in production.

8.6

Power-Up Requirements and Reset Behavior

During a power-up sequence, the VCC supplied to the AT24C01D/02D should monotonically rise from GND to the

minimum VCC level as specified in Section 8.2 with no greater than a slew rate of 1V/μs.

8.6.1

Device Reset

To prevent Write operations or other spurious events from happening during a power-up sequence, the

AT24C01D/02D includes a Power-On-Reset (POR) circuit. Upon power-up, the device will not respond to any

commands until the VCC level crosses the internal voltage threshold (VPOR) that brings the device out of reset and

into standby mode.

The system designer must ensure that instructions are not sent to the device until the VCC supply has reached a

stable value greater than or equal to the minimum VCC level. Additionally, once the VCC is greater than or equal to

the minimum VCC level, the bus Master must wait at least tPUP before sending the first command to the device. See

Table 8-1 for the values associated with these power-up parameters.

Table 8-1.

Power-up Conditions

If an event occurs in the system where the VCC level supplied to the AT24C01D/02D drops below the maximum

VPOR level specified, it is recommended that a full power cycle sequence be performed by first driving the VCC pin

to GND, waiting at least the minimum tPOFF time, and then performing a new power-up sequence in compliance

with the requirements defined in this section.

8.7

EEPROM Cell Performance Characteristics

Notes: 1.

Write endurance performance is determined through characterization and the qualification process.

The data retention capability is determined through qualification and checked on each device in production.

Applicable over recommended operating range from TA = 25C, f = 1.0MHz, VCC = 3.6V

Symbol

Test Condition

Max

Units

Conditions

CI/O

Input/Output Capacitance (SDA)

VI/O = 0V

CIN

Input Capacitance (A0, A1, A2, SCL)

VIN = 0V

Symbol

Parameter

Min

Max

Units

tPUP

Time required after VCC is stable before the device can accept commands.

100

μs

VPOR

Power-On Reset Threshold Voltage

1.5

tPOFF

Minimum time at VCC = 0V between power cycles.

Operation

Test Condition

Min

Max

Units

Write Endurance(1)

TA = 25°C, VCC(min)< VCC <VCC(max)

Byte or Page Write Mode

1,000,000

—

Write Cycles

Data Retention(2)

TA = 55°C

100

—

Years

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