PCA9561 查看數據表（PDF） - NXP Semiconductors.

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PCA9561

Quad 6-bit multiplexed I2C-bus EEPROM DIP switch

NXP Semiconductors. 

NXP Semiconductors

5. Pinning information

5.1 Pinning

PCA9561

Quad 6-bit multiplexed I2C-bus EEPROM DIP switch

SCL 1

SDA 2

A0 3

MUX_IN_A 4

MUX_IN_B 5

MUX_IN_C 6

MUX_IN_D 7

MUX_IN_E 8

MUX_IN_F 9

VSS 10

PCA9561PW

20 VDD

19 WP

18 A1

17 MUX_OUT_A

16 MUX_OUT_B

15 MUX_OUT_C

14 MUX_OUT_D

13 MUX_OUT_E

12 MUX_OUT_F

11 MUX_SELECT

002aah285

Fig 2. Pin configuration for TSSOP20

5.2 Pin description

Table 3. Pin description

Symbol

Pin Description

SCL

1

serial I2C-bus clock line

SDA

2

serial bidirectional I2C-bus data line

A0

3

address 0

MUX_IN_A

4

external input A to multiplexer

MUX_IN_B

5

external input B to multiplexer

MUX_IN_C

6

external input C to multiplexer

MUX_IN_D

7

external input D to multiplexer

MUX_IN_E

8

external input E to multiplexer

MUX_IN_F

9

external input F to multiplexer

VSS

10

MUX_SELECT 11

ground

selects MUX_IN_X inputs or EEPROM register contents for

MUX_OUT_X outputs

MUX_OUT_F 12

open-drain multiplexed output F

MUX_OUT_E 13

open-drain multiplexed output E

MUX_OUT_D 14

open-drain multiplexed output D

MUX_OUT_C 15

open-drain multiplexed output C

MUX_OUT_B 16

open-drain multiplexed output B

MUX_OUT_A 17

open-drain multiplexed output A

A1

18

address 1

WP

19

non-volatile register write-protect

VDD

20

supply voltage (3.0 V to 3.6 V)

PCA9561

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 6 November 2012

© NXP B.V. 2012. All rights reserved.

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