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參數(shù)資料
型號(hào): PCA9534PW,112
廠(chǎng)商: NXP Semiconductors
文件頁(yè)數(shù): 20/25頁(yè)
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 8B 16TSSOP
標(biāo)準(zhǔn)包裝: 96
接口: I²C,SM 總線(xiàn)
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 管件
包括: POR
其它名稱(chēng): 935275051112
PCA9534PW
PCA9534PW-ND
PCA9534_3
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 — 6 November 2006
4 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
[1]
HVQFN package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must be
connected to supply ground for proper device operation. For enhanced thermal, electrical, and board level
performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad on the
board and for proper heat conduction through the board, thermal vias need to be incorporated in the PCB in
the thermal pad region.
6.
Functional description
6.1 Registers
6.1.1 Command byte
The command byte is the rst byte to follow the address byte during a write transmission.
It is used as a pointer to determine which of the following registers will be written or read.
6.1.2 Register 0 - Input Port register
This register is a read-only port. It reects the incoming logic levels of the pins, regardless
of whether the pin is dened as an input or an output by Register 3. Writes to this register
have no effect.
The default ‘X’ is determined by the externally applied logic level.
IO6
11
9
input/output 6
IO7
12
10
input/output 7
INT
13
11
interrupt output (open-drain)
SCL
14
12
serial clock line
SDA
15
13
serial data line
VDD
16
14
supply voltage
Table 2.
Pin description …continued
Symbol
Pin
Description
SO16, TSSOP16
HVQFN16
Table 3.
Command byte
Command
Protocol
Function
0
read byte
Input Port register
1
read/write byte
Output Port register
2
read/write byte
Polarity Inversion register
3
read/write byte
Conguration register
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