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PCA9545ABS集成电路(IC)专用规格书PDF中文资料
厂商型号 |
PCA9545ABS |
参数属性 | PCA9545ABS 封装/外壳为20-VQFN 裸露焊盘;包装为托盘;类别为集成电路(IC) > 专用;PCA9545ABS应用范围:4 通道 I²C 开关;产品描述:IC INTFACE SPECIALIZED 20HVQFN |
功能描述 | 4-channel I2C-bus switch with interrupt logic and reset |
文件大小 |
455.33 Kbytes |
页面数量 |
33 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 | 2024-5-3 23:00:00 |
PCA9545ABS规格书详情
General description
The PCA9545A is a quad bidirectional translating switch controlled via the I2C-bus. The
SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual
SCx/SDx channel or combination of channels can be selected, determined by the
contents of the programmable control register. Four interrupt inputs, INT0 to INT3, one
for each of the downstream pairs, are provided. One interrupt output, INT, acts as an
AND of the four interrupt inputs.
An active LOW reset input allows the PCA9545A to recover from a situation where one
of the downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets
the I2C-bus state machine and causes all the channels to be deselected as does the
internal power-on reset function.
The pass gates of the switches are constructed such that the VDD pin can be used to limit
the maximum high voltage which is passed by the PCA9545A. This allows the use of
different bus voltages on each pair, so that 1.8 V or 2.5 V or 3.3 V parts can communicate
with 5 V parts without any additional protection. External pull-up resistors pull the bus up
to the desired voltage level for each channel. All I/O pins are 5 V tolerant.
Features and benefits
• 1-of-4 bidirectional translating switches
• I2C-bus interface logic; compatible with SMBus standards
• Four active LOW interrupt inputs
• Active LOW interrupt output
• Active LOW reset input
• Two address pins allowing up to four devices on the I2C-bus
• Channel selection via I2C-bus, in any combination
• Power-up with all switch channels deselected
• Low Ron switches
• Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
• No glitch on power-up
• Supports hot insertion
• Low standby current
• Operating power supply voltage range of 2.3 V to 5.5 V
• 5 V tolerant Inputs
• 0 Hz to 400 kHz clock frequency
• ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per
JESD22-C101
• Latch-up protection exceeds 100 mA per JESD78
• Three packages offered: SO20, TSSOP20, and HVQFN20
PCA9545ABS属于集成电路(IC) > 专用。恩智浦半导体公司制造生产的PCA9545ABS专用该系列产品可提供所需的功能,用以将信息源/信宿连到各种复杂或范围狭窄应用中的传感器、变送器、致动器、传输介质或其他此类端点。例如,汽车安全气囊驱动器、车身控制和信息娱乐总线、自适应电缆均衡器、智能卡等等。
产品属性
- 产品编号:
PCA9545ABS,118
- 制造商:
NXP USA Inc.
- 类别:
集成电路(IC) > 专用
- 包装:
托盘
- 应用:
4 通道 I²C 开关
- 接口:
I²C
- 电压 - 供电:
2.3V ~ 3.6V,4.5V ~ 5.5V
- 封装/外壳:
20-VQFN 裸露焊盘
- 供应商器件封装:
20-HVQFN(5x5)
- 安装类型:
表面贴装型
- 描述:
IC INTFACE SPECIALIZED 20HVQFN
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 |
10542 |
全新原装正品/价格优惠/质量保障 |
询价 | ||
NXP/恩智浦 |
23+ |
NA/ |
20 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
NXP |
2020+ |
HVQFN-2 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
NXP/恩智浦 |
2021/2022+ |
NA |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
NXP/恩智浦 |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
NXP(恩智浦) |
N/A |
6000 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
PHILIPS原装 |
2320+ |
QFN |
562000 |
16年只做原装原标渠道现货终端BOM表可配单提供样品 |
询价 | ||
PHILIPS |
22+ |
QFN |
3000 |
原装正品,支持实单 |
询价 | ||
NXP/恩智浦 |
22+ |
HVFQN20 |
457 |
只做原装进口 免费送样!! |
询价 | ||
NXP(恩智浦) |
22+ |
NA |
10000 |
正规渠道,只有原装! |
询价 |