PCA9575HF集成电路(IC)I/O扩展器规格书PDF中文资料
![PCA9575HF](https://img.114ic.com/dgk/Renders/~~Pkg.Case%20or%20Series/24-QFN%20Exposed%20Pad.jpg)
厂商型号 |
PCA9575HF |
参数属性 | PCA9575HF 封装/外壳为24-WFQFN 裸露焊盘;包装为管件;类别为集成电路(IC) > I/O 扩展器;产品描述:IC I/O EXPANDER I2C 16B 24HWQFN |
功能描述 | 16-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt |
文件大小 |
632.01 Kbytes |
页面数量 |
44 页 |
生产厂商 | NXP Semiconductors |
企业简称 |
nxp【恩智浦】 |
中文名称 | 恩智浦半导体公司官网 |
原厂标识 | ![]() |
数据手册 | |
更新时间 | 2024-6-14 22:59:00 |
PCA9575HF规格书详情
1 General description
The PCA9575 is a CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO)
expansion in low voltage processor and handheld battery powered mobile applications and was developed to enhance the NXP family of I2C-bus I/O expanders. The improvements include lower supply current, lower operating voltage of 1.1 V to 3.6 V, separate supply rails to allow voltage level translation anywhere between 1.1 V and 3.6 V, 400 kHz clock frequency, and smaller packaging. Any of the 16 I/O ports can be configured as an input or output independent of each other and default on start-up to inputs. I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum; for example in battery powered mobile applications and clamshell devices for interfacing to sensors, push buttons, keypad, etc. In addition to providing a flexible set of GPIOs, it simplifies interconnection of a processor running at one voltage level to I/O devices operating at a different (usually higher) voltage level. PCA9575 has built-in level shifting feature that makes these devices extremely flexible in mixed signal environments where communication between incompatible I/Os is required. The core of PCA9575 can operate at a voltage as low as 1.1 V while each I/O bank can operate in the range 1.1 V to 3.6 V. Bus hold with programmable on-chip pull-up or pull-down feature for I/Os is also provided. The output stage consists of two banks each of 8-bit configuration registers, input registers, interrupt mask registers, output registers, bus-hold and pull-up/pull-down registers and polarity inversion registers. These registers allow the system controller to program and configure 16 GPIOs through the I2C-bus. The system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration register bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the read registers can be inverted with the Polarity Inversion register (active HIGH or active LOW operation). Either a bus-hold function or pull-up/pull-down feature can be selected by programming corresponding registers. The bus-hold provides a valid logic level when the I/O bus is not actively driven. When bus-hold feature is not selected, the I/O ports can be configured to have pull-up or pull-down by programming the pull-up/pull-down configuration register. An open-drain interrupt output pin (INT) allows monitoring of the input pins and is asserted each time a change
occurs on an input port unless that port is masked (default = masked). A ‘GPIO All Call’ command allows
programming multiple PCA9575s at the same time even if they have different individual I2C-bus addresses. This command allows optimal code programming when more than one device must be programmed with the same instruction or if all outputs must be turned on or off at the same time. The internal Power-On Reset (POR) or hardware reset pin (RESET) initializes the two banks of 8 I/Os as inputs, sets the registers to their default values and initializes the device state machine. The I/O banks are held in its default state when the logic supply (VDD) is off. The PCA9575 is available in 24-pin TSSOP, 28-pin TSSOP and HWQFN24 packages, and is specified over the -40 °C to +85 °C industrial temperature range, with HWQFN24 up to +105 °C. The 28-pin package provides four address select pins, allowing up to 16 PCA9575 devices to be connected with 16 different addresses on the same I2C-bus.
2 Features and benefits
• Separate supply rails for core logic and each of the two I/O banks provides voltage level shifting
• 1.1 V to 3.6 V operation with level shifting feature
• Very low standby current: < 2 μA
• 16 configurable I/O pins organized as 2 banks that default to inputs at power-up
• Outputs:
– Totem pole: 1 mA source and 3 mA sink
– Independently programmable 100 kΩ pull-up or pull-down for each I/O pin
– Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level change of pins
programmed as inputs
• Inputs:
– Programmable bus hold provides valid logic level when inputs are not actively driven
– Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change
or to prevent spurious interrupts default to mask at power-up
– Polarity Inversion register allows inversion of the polarity of the I/O pins when read
• 400 kHz I2C-bus serial interface
• Compliant with I2C-bus Standard-mode (100 kHz)
• Active LOW reset (RESET) input pin resets device to power-up default state
• GPIO All Call address allows programming of more than one device at the same time with the same
parameters
• 16 programmable target addresses using 4 address pins (28-pin TSSOP only)
• -40 °C to +85 °C operation, with HWQFN24 up to +105 °C
• ESD protection exceeds 6000 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
• Packages offered: TSSOP28, TSSOP24, HWQFN24
3 Applications
• Cell phones
• Media players
• Multi-voltage environments
• Battery operated mobile gadgets
• Motherboards
• Servers
• RAID systems
• Industrial control
• Medical equipment
• PLCs
• Gaming machines
• Instrumentation and test measurement
PCA9575HF属于集成电路(IC) > I/O 扩展器。恩智浦半导体公司制造生产的PCA9575HFI/O 扩展器该系列器件可与微控制器、微处理器或类似器件结合使用,目的是增加可用于连接外设的信号连接数量。典型的工作概念涉及使用串行通信,只需主机设备上的几根 I/O 线,即可读/写扩展器设备上的许多输入/输出引脚的状态。该技术的通信速度不佳,但连通性较高,最适合快速响应不是很关键的应用,例如许多人机界面应用。
产品属性
- 产品编号:
PCA9575HF,118
- 制造商:
NXP USA Inc.
- 类别:
集成电路(IC) > I/O 扩展器
- 包装:
管件
- I/O 数:
16
- 接口:
I²C,SMBus
- 中断输出:
是
- 特性:
POR
- 输出类型:
推挽式
- 电流 - 灌/拉输出:
1mA,3mA
- 电压 - 供电:
1.1V ~ 3.6V
- 工作温度:
-40°C ~ 85°C
- 安装类型:
表面贴装型
- 封装/外壳:
24-WFQFN 裸露焊盘
- 供应商器件封装:
24-HWQFN(4x4)
- 描述:
IC I/O EXPANDER I2C 16B 24HWQFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NXP(恩智浦) |
23+ |
标准封装 |
7438 |
全新原装正品/价格优惠/质量保障 |
询价 | ||
NXP/恩智浦 |
23+ |
NA/ |
17570 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
NXP |
2016+ |
QFN |
9000 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
NXP |
2019+ |
QFN |
6000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
NEXPERIA/安世 |
24+ |
NA |
860000 |
明嘉莱只做原装正品现货 |
询价 | ||
NXP |
23+ |
QFN |
20000 |
原厂原装正品现货 |
询价 | ||
NXP/恩智浦 |
22+ |
QFN |
3000 |
原装现货 价格 数量 来电确认 |
询价 | ||
NXP |
23+ |
SOT994 |
7780 |
全新原装优势 |
询价 | ||
nxp/NXP Semiconductors/恩智浦/ |
21+ |
QFN24 |
125483 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
NXP/恩智浦 |
2020+ |
QFN |
5000 |
原装现货,优势渠道订货假一赔十 |
询价 |