- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1959 > PCA9554TS,112 (NXP Semiconductors)IC I/O EXPANDER I2C 8B 20SSOP PDF資料下載
參數(shù)資料
| 型號： | PCA9554TS,112 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 1/35頁 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 20SSOP |
| 標準包裝： | 75 |
| 接口： | I²C，SM 總線 |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 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： | 20-LSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-SSOP |
| 包裝： | 管件 |
| 包括： | POR |
| 其它名稱： | 935276771112 PCA9554TS PCA9554TS-ND |
當前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
1.
General description
The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General
Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and
were developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders.
The improvements include higher drive capability, 5 V I/O tolerance, lower supply current,
individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O
expanders provide a simple solution when additional I/O is needed for ACPI power
switches, sensors, push buttons, LEDs, fans, and so on.
The PCA9554/PCA9554A consist of an 8-bit Configuration register (Input or Output
selection); 8-bit Input Port register, 8-bit Output Port register and an 8-bit Polarity
Inversion register (active HIGH or active LOW operation). The system master can enable
the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for
each input or output is kept in the corresponding Input Port or Output Port register. The
polarity of the read register can be inverted with the Polarity Inversion register. All
registers can be read by the system master. Although pin-to-pin and I2C-bus address
compatible with the PCF8574 series, software changes are required due to the
enhancements and are discussed in Application Note AN469.
The PCA9554/PCA9554A open-drain interrupt output is activated when any input state
differs from its corresponding Input Port register state and is used to indicate to the
system master that an input state has changed. The power-on reset sets the registers to
their default values and initializes the device state machine.
Three hardware pins (A0, A1, A2) vary the fixed I2C-bus address and allow up to eight
devices to share the same I2C-bus/SMBus. The PCA9554A is identical to the PCA9554
except that the fixed I2C-bus address is different allowing up to sixteen of these devices
(eight of each) on the same I2C-bus/SMBus.
2.
Features and benefits
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant I/Os
Polarity Inversion register
Active LOW interrupt output
Low standby current
Noise filter on SCL/SDA inputs
No glitch on power-up
Internal power-on reset
8 I/O pins which default to 8 inputs
0 Hz to 400 kHz clock frequency
PCA9554; PCA9554A
8-bit I2C-bus and SMBus I/O port with interrupt
Rev. 9 — 19 March 2013
Product data sheet
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9555N,112 | IC I/O EXPANDER I2C 16B 24DIP |
| PCA9556PW,112 | IC I/O EXPANDER I2C 8B 16TSSOP |
| PCA9557D/DG,118 | IC I/O PORT I2C/SMBUS 16-SOIC |
| PCA9574HR,115 | IC I/O EXPANDER I2C 8B 16HXQFN |
| PCA9575PW1,118 | IC I/O EXPANDER I2C 16B 24TSSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9554TS-T | 功能描述:I2C 接口集成電路 8-BIT I2C FM TP GPIO INT PU RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9554TS-T,118 | 制造商:NXP Semiconductors 功能描述: |
| PCA9554U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C-bus and SMBus I/O port with interrupt |
| PCA9554U,029 | 功能描述:I2C 接口集成電路 PCA9554U/UNCASED/PUT RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9555 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:REMOTE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。