M41T62 datasheet(32/40 Pages) STMICROELECTRONICS

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DC and AC parameters

M41T62/63/64/65

32/40

Table 13.

Capacitance

Symbol

Parameter(1)(2)

Effective capacitance measured with power supply at 3.6V; sampled only, not 100% tested.

At 25°C, f = 1MHz.

Min

Max

Unit

CIN

Input capacitance

COUT

(3)

Outputs deselected.

Output capacitance

tLP

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

Table 14.

DC characteristics

Sym

Parameter

Test condition(1)

Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 1.3V to 4.4V (except where noted).

Min

Typ

Max

Unit

VCC

(2)

Oscillator start-up guaranteed at 1.5V only.

Operating voltage

Clock(3)

When using battery back-up, VCC fall time should not exceed 10mV/µs.

1.0

4.4

I2C bus (400kHz)

1.3

4.4

ICC1 Supply current

SCL = 400kHz

(no load)

4.4V

100

µA

3.6V

µA

3.0V

µA

2.5V

µA

2.0V

µA

ICC2

Supply current

(standby)

SCL = 0Hz

all inputs

≥ V

CC – 0.2V

≤V

SS + 0.2V

SQW off

4.4V

950

3.6V

375

700

3.0V @ 25°C

350

2.0V @ 25°C

310

VIL Input low voltage

–0.2

0.3VCC

VIH Input high voltage

0.7VCC

VCC+0.3

VOL

Output low voltage

VCC = 4.4V, IOL = 3.0mA

(CMOS or open drain)

0.4

VCC = 4.4V, IOL = 1.0mA

(SQW, WDO, IRQ)

0.4

VOH Output high voltage

VCC = 4.4V, IOH = –1.0mA (push-pull)

2.4

Pull-up supply voltage

(open drain)

IRQ/OUT, IRQ/FT/OUT, WDO, SQW

(M41T64 only)

4.4

ILI

Input leakage current

≤V

IN ≤VCC

±1

µA

ILO

Output leakage

current

≤V

OUT ≤VCC

±1

µA

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