M41T80M6F 查看數據表（PDF） - STMicroelectronics

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M41T80M6F

Serial access real-time clock with alarm

STMicroelectronics 

DC and AC parameters

M41T80

Table 10. DC characteristics

Symbol

Parameter

Test condition(1)

Min Typ Max Unit

ILI Input leakage current

ILO Output leakage current

ICC1 Supply current

0 V ≤ VIN ≤ VCC

0 V ≤ VOUT ≤ VCC

Switch freq (SCL) = 400 kHz

3.0 V

5.5 V

±1

µA

±1

µA

30

µA

200

µA

ICC2(2)

Supply current

(standby)

32KE = 1 3.0 V

or

All inputs = VCC – 0.2 V SQWE = 1 5.5 V

Switch freq (SCL) = 0 Hz 32KE = 0 3.0 V

and

SQWE = 0 5.5 V

1.8

3.0

µA

35

µA

1.5

2.4

µA

31

µA

VIL Input low voltage

VIH Input high voltage

Output low voltage

VOL Output low voltage

(open drain)(3)

IOL = 3.0 mA

IOL = 10 mA

–0.3

0.7VCC

0.3VCC V

VCC + 0.3 V

0.4

V

0.4

V

Pull-up supply voltage

(open drain)

IRQ/OUT/SQW, F32K, SCL, SDA

5.5

V

1. Valid for ambient operating temperature: TA = –40 to 85 °C; VCC = 2.0 to 5.5 V (except where noted).

2. At 25 °C.

3. For IRQ/FT/OUT, RST, and 32 KHz pins (open drain)

Table 11. Crystal electrical characteristics

Sym

Parameter(1) (2)

Min

Typ

Max

Units

fO

Resonant frequency

RS

Series resistance

CL

Load capacitance

32.768

kHz

60

kΩ

12.5

pF

1. Externally supplied if using the SO8 package. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning

Fork Type (thru-hole) or the DMX-26S: 1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations.

2. Load capacitors are integrated within the M41T80. Circuit board layout considerations for the 32.768 kHz crystal of

minimum trace lengths and isolation from RF generating signals should be taken into account.

20/27

Doc ID 9074 Rev 5

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