M41T64(2004) 查看數據表（PDF） - STMicroelectronics

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M41T64
(Rev.:2004)

Serial Access Real-Time Clock with Alarms

STMicroelectronics 

Figure 6. M41T62 16-pin QFN Connections

16 15 14 13

XI 1

12 NC

XO 2

11 IRQ/OUT(2)

VSS 3

10 SCL

SQW(1) 4

9 SDA

5678

AI09100

Note: 1. SQW Output will default to 32KHz upon power-up.

2. Open Drain.

Figure 7. M41T63 16-pin QFN Connections

16 15 14 13

XI 1

12 NC

XO 2

11 WDO(2)

VSS 3

10 SCL

SQW(1) 4

9 SDA

5678

AI09190

Note: 1. SQW Output will default to 32KHz upon power-up.

2. Open Drain.

Figure 8. M41T64 16-pin QFN Connections

16 15 14 13

XI 1

12 NC

XO 2

11 SQW(2)

VSS 3

10 SCL

F32k(1) 4

9 SDA

5678

Note: 1. Enabled on power-up.

2. Open Drain.

AI09101

M41T62/63/64/65

Figure 9. M41T65 16-pin QFN Connections

16 15 14 13

XI 1

12 NC

XO 2

11 IRQ/FT/OUT(1)

VSS 3

10 SCL

WDO(1) 4

9 SDA

5678

Note: 1. Open Drain.

AI09102

Table 2. Signal Names

XI

Oscillator Input

XO

Oscillator Output

SDA

Serial Data Input/Output

SCL

Serial Clock Input

IRQ/OUT

Interrupt or OUT Output (Open

Drain)

IRQ/FT/

OUT

Interrupt, Frequency Test, or OUT

Output (Open Drain)

SQW

Programmable Square Wave -

Defaults to 32KHz on Power-up

(Open Drain for M41T64 only)

F32k

Dedicated 32KHz Output

WDO

Watchdog Timer Output (Open

Drain)

VCC

Supply Voltage

VSS

Ground

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