PCA9516APW: 5-channel I2C-bus hub
The PCA9516A is a CMOS integrated circuit intended for application in I²C-bus and SMBus systems.
While retaining all the operating modes and features of the I²C-bus system, it permits extension of the I²C-bus by buffering both the data (SDAn) and the clock (SCLn) lines, thus enabling five buses of 400 pF.
The I²C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9516A enables the system designer to divide the bus into five segments off of a hub where any segment-to-segment transition sees only one repeater delay.
It can also be used to run different buses at 5 V and 3.3 V or 400 kHz and 100 kHz buses where the 100 kHz bus is isolated when 400 kHz operation of the other bus is required.
Two or more PCA9516As cannot be put in series.The PCA9516A design does not allow this configuration. Since there is no direction pin, slightly different 'legal' low voltage levels are used to avoid lock-up conditions between the input and the output of each repeater in the hub. A 'regular LOW' applied at the input of a PCA9516A will be propagated as a 'buffered LOW' with a slightly higher value on all the enabled outputs. When this 'buffered LOW' is applied to another PCA9515A, PCA9516A, or PCA9518A in series, the second PCA9515A, PCA9516A, or PCA9518A will not recognize it as a 'regular LOW' and will not propagate it as a 'buffered LOW' again. The PCA9510A/9511A/9513A/9514A and PCA9512A cannot be used in series with the PCA9515A, PCA9516A, or PCA9518A, but can be used in series with themselves since they use shifting instead of static offsets to avoid lock-up conditions.
PCA9516APW: Product Block Diagram
Outline 3d SOT403-1
1. The maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater.
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| 5-channel I2C-bus hub (REV 3.0) PDF (108.0 kB) PCA9516A | 23 Apr 2009 |
Application Notes (4)
| Name/Description | Modified Date |
|---|---|
| Single card I2C bus buffers (REV 1.0) PDF (238.0 kB) AN10419 | 16 Nov 2010 |
| Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 | 20 Jun 2007 |
| PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES (REV 2.0) PDF (807.0 kB) AN262 | 01 Oct 2004 |
| I2C / SMBus Repeaters, Hubs and Expanders (REV 2.0) PDF (1.0 MB) AN255 | 19 Dec 2002 |
Users Guides (4)
| Name/Description | Modified Date |
|---|---|
| I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 | 28 Apr 2014 |
| I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA | 03 Apr 2013 |
| PCA9600 demonstration board OM6293 (REV 1.0) PDF (130.0 kB) UM10323 | 15 Dec 2008 |
| I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 | 13 Jun 2006 |
Brochures (3)
| Name/Description | 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 | 01 Aug 2014 |
| I2C/SMBus buffers for backplane multi-point and hot-swap applications; NXP® Level-shifting and... (REV 1.0) PDF (773.0 kB) 75016530 | 01 Jul 2008 |
| Extend the I2C-bus with advanced repeaters and hubs; NXP® 2-channel I2C-bus repeaters PCA9515x and... (REV 1.0) PDF (740.0 kB) 75016532 | 01 Jul 2008 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic thin shrink small outline package; 16 leads; body width 4.4 mm (REV 1.0) PDF (300.0 kB) SOT403-1 | 08 Feb 2016 |
Packing (1)
| Name/Description | Modified Date |
|---|---|
| TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (218.0 kB) SOT403-1_118 | 08 Apr 2013 |
Supporting Information (1)
| Name/Description | Modified Date |
|---|---|
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE | 08 Oct 2009 |
IBIS Model
- PCA9516 IBIS model (REV 1.0) ibs PCA9516APW 8/19/2014
Ordering Information
| Product | Status | Package version | Application | Enable | Function | Operating Temperature (Cel) | Number of bits | Voltage Translation Range (V) | Operating voltage (VDC) | Operating voltage 2 (V) | Inputs | Outputs | TTL Drive (mA) | GTL Drive (mA) | I2C-bus (kHz) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9516APW | Active | SOT403-1 | -40~85 | 2.3~3.6_tolerant_to_5.5 VDC | 1 | 4 | 400 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9516APW | | SOT403-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9516APW,118 (9352 758 83118) | PA9516A | PCA9516APW |    | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9516APW,112 (9352 758 83112) | PA9516A | PCA9516APW | | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
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- Single card I2C bus buffers pca9518apw
- Level shifting techniques in I2C-bus design pca9685pw
- PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES pca9516apw
- I2C / SMBus Repeaters, Hubs and Expanders pca9600
- I2C-bus specification and user manual pca9685pw
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- PCA9600 demonstration board OM6293 pca9600
- 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
- I2C/SMBus buffers for backplane multi-point and hot-swap applications; NXP® Level-shifting and... pca9518apw
- Extend the I2C-bus with advanced repeaters and hubs; NXP® 2-channel I2C-bus repeaters PCA9515x and... pca9600
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