HT1382 Просмотр технического описания (PDF) - Holtek Semiconductor

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HT1382

I2C/3-Wire Real Time Clock

Holtek Semiconductor 

HT1382

I2C/3-Wire Real Time Clock

Pad Assignment

X1 1

X2 2

VBAT 3

CE 4

IF S 5

VSS 6

(0 ,0 )

10 V D D

9 IR Q /F O U T

8 S C LK

7 SDA

Chip size: 1245 ´ 1520 (mm)2

* The IC substrate should be connected to VSS in the PCB layout artwork.

Pad Coordinates

Pad No.

1

2

3

X

-520.005

-520.005

-520.005

4

-520.005

5

-520.005

Y

-161.460

-256.460

-360.130

-455.130

-550.130

Pad No.

6

7

8

9

10

X

-520.005

521.000

521.000

521.000

516.450

Unit: mm

Y

-646.610

-625.000

-530.000

-425.300

-288.400

Pad Description

Pad No.

1

2

Pad Name

X1

X2

3

VBAT

4

VSS

5

IFS

6

CE

7

SDA/I/O

8

SCL/SCLK

9

IRQ/FOUT

10

VDD

I/O

Description

I 32768Hz crystal input pin

O 32768Hz crystal output pin

¾ Battery power supply

¾ Negative power supply, ground

Interface selection pin.

I I2C interface is selected when IFS is unconnected, 3-wire interface is selected

when IFS is connected to VSS.

I

Chip Enable for 3-wire interface

Not used for I2C interface

I/O Serial Data Input/Output for I2C and 3-wire interfaces

I/O Serial Clock Input for I2C and 3-wire interfaces

O Interrupt/Frequency Output, this pin is open drain output

¾ Positive power supply

Rev. 1.40

3

May 27, 2011

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