參數(shù)資料
型號(hào)： PCA9557PW,112
廠商： NXP Semiconductors
文件頁數(shù)： 1/30頁
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
輸入/輸出數(shù)： 8
中斷輸出： 無
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
產(chǎn)品目錄頁面： 826 (CN2011-ZH PDF)
其它名稱： 568-5028
935270669112
PCA9557PW
PCA9557PW,112-ND
PCA9557PW-ND
1.
General description
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for
SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register,
8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption
and a high-impedance open-drain output pin, IO0.
The system master can enable the PCA9557’s I/O as either input or output by writing to
the configuration register. The system master can also invert the PCA9557 inputs by
writing to the active HIGH polarity inversion register. Finally, the system master can reset
the PCA9557 in the event of a time-out by asserting a LOW in the reset input.
The power-on reset puts the registers in their default state and initializes the
I2C-bus/SMBus state machine. The RESET pin causes the same reset/initialization to
occur without de-powering the part.
2.
Features and benefits
Lower voltage, higher performance migration path for the PCA9556
8 general purpose input/output expander/collector
Input/output configuration register
Active HIGH polarity inversion register
I2C-bus and SMBus interface logic
Internal power-on reset
Noise filter on SCL/SDA inputs
Active LOW reset input
3 address pins allowing up to 8 devices on the I2C-bus/SMBus
High-impedance open-drain on IO0
No glitch on power-up
Power-up with all channels configured as inputs
Low standby current
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant inputs/outputs
0 kHz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per
JESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Three packages offered: SO16, TSSOP16, HVQFN16
PCA9557
8-bit I2C-bus and SMBus I/O port with reset
Rev. 7 — 10 December 2013
Product data sheet
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9557PW112 制造商:NXP Semiconductors 功能描述:IC I/O EXPANDER 8BIT 400KHZ TSSOP-16
PCA9557PW118 制造商:NXP Semiconductors 功能描述:IC I/O EXPANDER 8BIT 400KHZ TSSOP-16
PCA9557PWG4 功能描述:接口-I/O擴(kuò)展器 Rem 8B I2C & SMBus Low-Pwr I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9557PWR 功能描述:接口-I/O擴(kuò)展器 Remote 8B I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9557PWRG4 功能描述:接口-I/O擴(kuò)展器 Rem 8B I2C & SMBus Low-Pwr I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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