M41TM6 데이터 시트보기 (PDF) - STMicroelectronics

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M41TM6

Serial Access TIMEKEEPER®

STMicroelectronics 

M41T00

Table 6. DC Characteristics

(TA = –40 to 85°C; VCC = 2.0V to 5.5V)

Symbol

Parameter

Test Condition

Min

Typ

Max

ILI

Input Leakage Current

0V ≤ VIN ≤ VCC

±1

ILO Output Leakage Current

0V ≤ VOUT ≤ VCC

±1

ICC1 Supply Current

Switch Frequency = 100kHz

300

ICC2 Supply Current (Standby)

SCL, SDA = VCC – 0.3V

70

VIL Input Low Voltage

–0.3

0.3 VCC

VIH Input High Voltage

0.7 VCC

VCC + 0.8

VOL Output Low Voltage

IOL = 3mA

0.4

VBAT(1) Battery Supply Voltage

2

3

3.5

IBAT Battery Supply Current

TA = 25°C, VCC = 0V,

Oscillator ON, VBAT = 3V

0.8

1

Note: 1. STMicroelectronics recommends the RAYOVAC BR1225 or BR1632 (or equivalent) as the battery supply.

Unit

µA

µA

µA

µA

V

V

V

V

µA

Table 7. Power Down/Up Trip Points DC Characteristics (1)

(TA = –40 to 85°C)

Symbol

Parameter

Min

Typ

Max

VSO (2) Battery Back-up Switchover Voltage

VBAT – 0.70 VBAT – 0.50 VBAT – 0.30

Note: 1. All voltages referenced to VSS.

2. Switch-over and deselect point.

Unit

V

Table 8. Crystal Electrical Characteristics

(Externally Supplied)

Symbol

Parameter

Min

Typ

Max

Unit

fO

Resonant Frequency

32.768

kHz

RS

Series Resistance

35

kΩ

CL

Load Capacitance

12.5

pF

Note: Load capacitors are integrated within the M41T00. Circuit board layout considerations for the 32.768kHz crystal of minimum trace

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

STMicroelectronics recommends the KDS DT-38 Tuning Fork Type quartz crystal for industrial temperature operations.

KDS can be contacted at 913-491-6825 or http://www.kdsj.co.jp for further information on this crystal type.

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