參數(shù)資料
型號: PCA9539RBS,118
廠商: NXP Semiconductors
文件頁數(shù): 8/37頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24HVQFN
特色產(chǎn)品: NXP - I2C Interface
標(biāo)準(zhǔn)包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 400kHz
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-HVQFN(4x4)
包裝: 標(biāo)準(zhǔn)包裝
包括: POR
其它名稱: 568-8709-6
PCA9539_PCA9539R
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 6 — 6 February 2013
16 of 37
NXP Semiconductors
PCA9539; PCA9539R
16-bit I2C-bus and SMBus low power I/O port with interrupt and reset
8.
Application design-in information
Device address configured as 1110 100X for this example.
IO0_0, IO0_2, IO0_3 configured as outputs.
IO0_1, IO0_4, IO0_5 configured as inputs.
IO0_6, IO0_7 and (IO1_0 to IO1_7) configured as inputs.
Fig 16. Typical application
PCA9539
IO0_0
IO0_1
SCL
SDA
VDD
(5 V)
MASTER
CONTROLLER
SCL
SDA
INT
IO0_2
VDD
A1
A0
VDD
VSS
INT
10 k
Ω
SUB-SYSTEM 1
(e.g., temp sensor)
IO0_3
INT
SUB-SYSTEM 2
(e.g., counter)
RESET
controlled
switch
(e.g., CBT device)
VDD
A
B
enable
SUB-SYSTEM 3
(e.g., alarm system)
ALARM
IO0_4
IO0_5
IO0_6
10 DIGIT
NUMERIC
KEYPAD
VSS
002aad730
10 k
Ω
10 k
Ω
2 k
Ω
100 k
Ω
(
×3)
IO0_7
IO1_0
IO1_1
IO1_2
IO1_3
IO1_4
IO1_5
IO1_6
IO1_7
RESET
10 k
Ω
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