M41T81M(2006) 查看數據表（PDF） - STMicroelectronics

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M41T81M
(Rev.:2006)

Serial access Real-Time Clock with alarm

STMicroelectronics 

Summary description

M41T81

Table 1. Signal names

XI

Oscillator input

XO

Oscillator output

IRQ/OUT/FT/SQW Interrupt / output driver / frequency test / square wave (open drain)

SDA

Serial data input/output

SCL

Serial clock input

VBAT

VCC

VSS

NC

Battery supply voltage

Supply voltage

Ground

No connect

NF

No function

Figure 2. 8-pin SOIC (M) connections

XI

XO

VBAT

VSS

1

8

2

7

3 M41T81 6

4

5

VCC

IRQ/FT/OUT/SQW

SCL

SDA

AI04769

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