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參數(shù)資料
| 型號： | PCA9538 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit I2C and SMBus low power I/O port with interrupt and reset |
| 中文描述： | 8位I2C和SMBus低功率的I / O端口中斷和復(fù)位 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 197K |
| 代理商： | PCA9538 |
Philips Semiconductors
Product data sheet
PCA9538
8-bit I
2
C and SMBus low power I/O port
with interrupt and reset
2
2004 Oct 05
FEATURES
8-bit I
2
C GPIO with interrupt and reset
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
Active LOW reset input
Low stand-by 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 kHz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
Offered in three different packages: SO16, TSSOP16, and
HVQFN16
DESCRIPTION
The PCA9538 is a 16-pin CMOS device that provide 8 bits of
General Purpose parallel Input/Output (GPIO) expansion with
interrupt and reset for I
2
C/SMBus applications and was developed
to enhance the Philips family of I
2
C I/O expanders. I/O expanders
provides a simple solution when additional I/O is needed for ACPI
power switches, sensors, pushbuttons, LEDs, fans, etc.
The PCA9538 consists of an 8-bit Configuration register (Input or
Output selection); 8-bit Input register, 8-bit Output 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 or Output register.
The polarity of the input port register can be inverted with the
Polarity Inversion Register. All registers can be read by the system
master.
The PCA9538 is identical to the PCA9554 except for the removal of
the internal I/O pull-up resistor which greatly reduces power
consumption when the I/Os are held LOW, replacement of A2 with
RESET and different address range.
The PCA9538 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. The RESET pin
causes the same reset/initialization to occur without depowering the
device.
Two hardware pins (A0 and A1) vary the fixed I
2
C address and allow
up to four devices to share the same I
2
C/SMBus.
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
ORDER CODE
TOPSIDE MARK
DRAWING NUMBER
16-Pin Plastic SO (wide)
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
PCA9538D
PCA9538D
SOT162-1
16-Pin Plastic TSSOP
PCA9538PW
PCA9538
SOT403-1
16-Pin Plastic HVQFN
Standard packing quantities and other packing data are available at www.standardproducts.philips.com/packaging.
I
2
C-bus is a trademark of Philips Semiconductors Corporation.
SMBus as specified by the Smart Battery System Implementers Forum is a derivative of the Philips I
2
C patent.
PCA9538BS
9538
SOT629-1
相關(guān)PDF資料 |
PDF描述 |
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| PCA9539 | 16-bit I2C and SMBus, low power I/O port with interrupt and reset |
| PCA9545A | 4-channel I2C switch with interrupt logic and reset |
| PCA9545 | 4-channel I2C switch with interrupt logic and reset |
| PCA9545D | 4-channel I2C switch with interrupt logic and reset |
| PCA9545PW | 4-channel I2C switch with interrupt logic and reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9538_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS |
| PCA9538A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage 8-bit I2C-bus I/O port with interrupt and reset |
| PCA9538ABS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage 8-bit I2C-bus I/O port with interrupt and reset |
| PCA9538ABSHP | 功能描述:接口-I/O擴(kuò)展器 8bit I2C IO Port 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 |
| PCA9538APW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage 8-bit I2C-bus I/O port with interrupt and reset |
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