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PCA9541APW/03中文资料
PCA9541APW/03数据手册规格书PDF详情
General description
The PCA9541A is a 2-to-1 I2C-bus master selector designed for high reliability dual master I2C-bus applications where system operation is required, even when one master fails or the controller card is removed for maintenance. The two masters (for example, primary and back-up) are located on separate I2C-buses that connect to the same downstream I2C-bus slave devices. I2C-bus commands are sent by either I2C-bus master and are used to select one master at a time. Either master at any time can gain control of the slave devices if the other master is disabled or removed from the system. The failed master is isolated from the system and will not affect communication between the on-line master and the slave devices on the downstream I2C-bus.
Features
2-to-1 bidirectional master selector
I2C-bus interface logic; compatible with SMBus standards
PCA9541A/01 powers up with Channel 0 selected
PCA9541A/03 powers up with no channel selected and either master can take control of the bus
Active LOW interrupt input
2 active LOW interrupt outputs
Active LOW reset input
4 address pins allowing up to 16 devices on the I2C-bus
Channel selection via I2C-bus
Bus initialization/recovery function
Bus traffic sensor
Low Ronswitches
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
Software identical for both masters
Low standby current
Operating power supply voltage range of 2.3 V to 5.5 V 6.0 V tolerant inputs
0 Hz 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 JEDEC Standard JESD78 which exceeds 100 mA
Packages offered: SO16, TSSOP16, HVQFN16
Applications
High reliability systems with dual masters
Gatekeeper multiplexer on long single bus
Bus initialization/recovery for slave devices without hardware reset
Allows masters without arbitration logic to share resources
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
恩XP |
24+ |
TSSOP-16 |
5524 |
原装正品,现货库存,1小时内发货 |
|||
恩XP |
24+ |
TSSOP |
4000 |
原装原厂代理 可免费送样品 |
|||
恩XP |
23+ |
TSSOP-16 |
5000 |
正规渠道,只有原装! |
|||
恩XP |
2024+ |
N/A |
70000 |
柒号只做原装 现货价秒杀全网 |
|||
恩XP |
25+ |
原厂封装 |
10280 |
原厂授权一级代理,专注军工、汽车、医疗、工业、新能源、电力! |
|||
恩XP |
25+ |
TSSOP |
15620 |
NXP/恩智浦全新特价PCA9541APW/03即刻询购立享优惠#长期有货 |
|||
恩XP |
25+ |
TSSOP |
2526 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
|||
恩XP |
17+ |
TSSOP16 |
6200 |
100%原装正品现货 |
|||
恩XP |
2016+ |
TSSOP16 |
6000 |
只做原装,假一罚十,公司可开17%增值税发票! |
|||
恩XP |
23+ |
TSSOP16 |
8600 |
受权代理!全新原装现货特价热卖! |
PCA9541APW/03,118 价格
参考价格:¥6.5998
PCA9541APW/03 资料下载更多...
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