PCA9545A中文资料PDF规格书
厂商型号 |
PCA9545A |
参数属性 | PCA9545A 封装/外壳为20-SOIC(0.295",7.50mm 宽);包装为卷带(TR);类别为集成电路(IC) > 专用;PCA9545A应用范围:4 通道 I²C 开关;产品描述:IC INTERFACE SPECIALIZED 20SO |
功能描述 | 4-channel I2C switch with interrupt logic and reset |
文件大小 |
155.61 Kbytes |
页面数量 |
27 页 |
生产厂商 | ROYAL PHILIPS |
企业简称 |
Philips【飞利浦】 |
中文名称 | 荷兰皇家飞利浦官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-16 19:09:00 |
PCA9545A规格书详情
General description
The PCA9545A is a quad bi-directional 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 will be 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
■ 1-of-4 bi-directional translating switches
■ I2C-bus interface logic; compatible with SMBus standards
■ 4 active LOW interrupt inputs
■ Active LOW interrupt output
■ Active LOW reset input
■ 2 address pins allowing up to 4 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 stand-by current
■ Operating power supply voltage range of 2.3 V to 5.5 V
■ 5 V tolerant 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 protection exceeds 100 mA per JESD78
■ Three packages offered: SO20, TSSOP20, and HVQFN20
产品属性
- 产品编号:
PCA9545AD,112
- 制造商:
NXP USA Inc.
- 类别:
集成电路(IC) > 专用
- 包装:
卷带(TR)
- 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-SOIC(0.295",7.50mm 宽)
- 供应商器件封装:
20-SO
- 安装类型:
表面贴装型
- 描述:
IC INTERFACE SPECIALIZED 20SO
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
PHILIPS/飞利浦 |
22+ |
TSSOP |
50000 |
只做正品原装,假一罚十,欢迎咨询 |
询价 | ||
PHI |
1738+ |
TSSOP |
8529 |
科恒伟业!只做原装正品,假一赔十! |
询价 | ||
NXP/恩智浦 |
23+ |
SMD |
5000 |
只做原装 深圳公司现货 十年信誉 |
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 |
21+ |
HVFQN20 |
5000 |
原装现货/假一赔十/支持第三方检验 |
询价 | ||
NXP(恩智浦) |
23+ |
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) |
23+ |
N/A |
6000 |
原装,可配单 |
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 | |||
PHI |
TSSOP |
10265 |
提供BOM表配单只做原装货值得信赖 |
询价 | |||
NXP(恩智浦) |
23+ |
NA |
20094 |
正纳10年以上分销经验原装进口正品做服务做口碑有支持 |
询价 |
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