PCA9548A: 带有复位的8通道I2C总线开关
PCA9548A是一款八通道双向变换开关，通过I²C总线进行控制。SCL/SDA上游对会扇出八个下游对或通道。可选择任何单独的SCx/SDx通道或通道组合，由可编程控制寄存器的内容决定。
低电平有效的复位输入允许PCA9548A从某一下游I²C总线卡在低电平状态的情况下恢复。将1引脚拉至低电平会复位I²C总线状态机并使所有通道变为取消选择状态，如同内部上电复位功能。
开关的传递门如此构造，使得VDD引脚可用于限制PCA9548A所传递的最高电压。这允许在各对上使用不同的总线电压，在没有任何额外保护的情况下使1.8 V、2.5 V或3.3 V部件能够与5 V部件通信。外部上拉电阻将总线上拉至各通道想要的电压电平。所有I/O引脚均为5 V耐受。
PCA9548A: 产品结构框图
Outline 3d SOT616-1
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| 8-channel I2C-bus switch with reset (REV 5.1) PDF (301.0 kB) PCA9548A [English] | 01 Oct 2015 |
应用说明 (2)
| 名称/描述 | Modified Date |
|---|---|
| Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 [English] | 20 Jun 2007 |
| PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES (REV 2.0) PDF (807.0 kB) AN262 [English] | 01 Oct 2004 |
用户指南 (3)
| 名称/描述 | Modified Date |
|---|---|
| I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 [English] | 28 Apr 2014 |
| I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA [English] | 03 Apr 2013 |
| I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English] | 13 Jun 2006 |
手册 (2)
| 名称/描述 | Modified Date |
|---|---|
| NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 [English] | 01 Aug 2014 |
| Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP® 2-, 4-, and 8-channel... (REV 1.0) PDF (641.0 kB) 75016529 [English] | 01 Jul 2008 |
封装信息 (3)
| 名称/描述 | Modified Date |
|---|---|
| plastic small outline package; 24 leads; body width 7.5 mm (REV 1.0) PDF (379.0 kB) SOT137-1 [English] | 08 Feb 2016 |
| plastic thin shrink small outline package; 24 leads; body width 4.4 mm (REV 1.0) PDF (353.0 kB) SOT355-1 [English] | 08 Feb 2016 |
| plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm (REV 1.0) PDF (202.0 kB) SOT616-1 [English] | 08 Feb 2016 |
包装 (4)
| 名称/描述 | Modified Date |
|---|---|
| HVQFN24; Reel pack; SMD, 13", Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code... (REV 1.0) PDF (185.0 kB) SOT616-1_128 [English] | 16 Jul 2014 |
| HVQFN24; reel pack; standard product orientation; 12NC ending 118 (REV 1.0) PDF (196.0 kB) SOT616-1_118 [English] | 16 Jan 2014 |
| TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 4.1) PDF (227.0 kB) SOT355-1_118 [English] | 15 Apr 2013 |
| SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 4.0) PDF (235.0 kB) SOT137-1_118 [English] | 12 Apr 2013 |
支持信息 (2)
| 名称/描述 | Modified Date |
|---|---|
| Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
Design Support
- Expert mode sample code PCA9548A (REV 1.0) TXT PCA9548A_1_2 12/10/2014
IBIS
- PCA9548A IBIS model (REV 1.0) ZIP PCA9548A_1 4/4/2016
订购信息
| 型号 | 状态 |
|---|---|
| PCA9548APW | Active |
| PCA9548ABS | Active |
| PCA9548AD | Active |
封装环保信息
| 产品编号 | 封装说明 | Outline Version | 回流/波峰焊接 | 包装 | 产品状态 | 部件编号订购码 (12NC) | Marking | 化学成分 | RoHS / 无铅 / RHF | 无铅转换日期 | EFR | IFR(FIT) | MTBF（小时） | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9548ABS | | SOT616-1 | Reel 13" Q2/T3 | Active | PCA9548ABSHP (9352 758 14128) | 548A | PCA9548ABS |    | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |
| Reel 13" Q1/T1 | Active | PCA9548ABS,118 (9352 758 14118) | 548A | PCA9548ABS | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9548APW |  | SOT355-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9548APW,118 (9352 758 16118) | PCA9548A | PCA9548APW | | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9548APW,112 (9352 758 16112) | PCA9548A | PCA9548APW | | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9548AD |  | SOT137-1 | SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | PCA9548AD,118 (9352 758 15118) | PCA9548AD | PCA9548AD |  | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9548AD,112 (9352 758 15112) | PCA9548AD | PCA9548AD | | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 8-channel I2C-bus switch with reset pca9548a
- Level shifting techniques in I2C-bus design pca9685pw
- PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES pca9516apw
- I2C-bus specification and user manual pca9685pw
- I2C-bus specification and user manual pca9685pw
- I2C Demonstration Board 2005-1 Quick Start Guide pca9685pw
- NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns pca9685pw
- Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP® 2-, 4-, and 8-channel... pca9548a
- Expert mode sample code PCA9548A PCA9548APW
- PCA9548A IBIS model PCA9548APW
- plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm TFF1007HN
- HVQFN24; Reel pack; SMD, 13", Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code... pca9548a
- HVQFN24; reel pack; standard product orientation; 12NC ending 118 TFF1007HN
- plastic thin shrink small outline package; 24 leads; body width 4.4 mm 74LVC4245A_Q100
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... 74LVC4245A_Q100
- plastic small outline package; 24 leads; body width 7.5 mm 74LVC4245A_Q100
- Footprint for wave soldering NPIC6C596A_Q100
- SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... 74LVC4245A_Q100
- PCA9548A
- TFF11152HN
- SA639DH
- PCA9552
