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PCA9513A; PCA9514A: Hot swappable I2C-bus and SMBus bus buffer

The PCA9513A and PCA9514A are hot swappable I²C-bus and SMBus buffers that allow I/O card insertion into a live backplane without corrupting the data and clock buses. Control circuitry prevents the backplane from being connected to the card until a stop command or bus idle occurs on the backplane without bus contention on the card. When the connection is made, the PCA9513A and PCA9514A provides bidirectional buffering, keeping the backplane and card capacitances isolated.

Rise time accelerator circuitry allows the use of weaker DC pull-up currents while still meeting rise time requirements. The PCA9513A and PCA9514A incorporates a digital ENABLE input pin, which enables the device when asserted HIGH and forces the device into a Low current mode when asserted LOW, and an open-drain READY output pin, which indicates that the backplane and card sides are connected together (HIGH) or not (LOW).

The PCA9513A supplies a 92 uA current source to SCLIN and SDAIN pins in lieu of using pull-up resistors which is ideal for multidrop bus applications. Including the current source in the device provides for a consistent RC time constant as cards are removed and inserted into the backplane. The current source is high-impedance whenever the pin voltage is greater than the part VCC.

The PCA9513A and PCA9514A rise time accelerator threshold is 0.8 V to provide better noise margin over the PCA9511A which is set to 0.6 V.

Remark: The dynamic offset design of the PCA9510A/11A/12A/13A/14A I/O drivers allow them to be connected to another PCA9510A/11A/12A/13A/14A device in series or in parallel and to the A side of the PCA9517. The PCA9510A/11A/12A/13A/14A cannotconnect to the static offset I/Os used on the PCA9515/15A/16/16A/18 or PCA9517 B side or P82B96 Sx/y side.

PCA9513A_PCA9514A: Product Block Diagram

PCA9513A_PCA9514A: Block Diagram

PCA9513A_PCA9514A: Block Diagram

PCA9513A_PCA9514A: Block Diagram

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Data Sheets (1)

Application Notes (2)

Users Guides (4)

Brochures (3)

Package Information (2)

Packing (2)

Supporting Information (4)

IBIS Model

• PCA9513ADP IBIS model (REV 1.0) ibs PCA9513ADP 9/19/2012
• PCA9514ADP IBIS model (REV 1.0) ibs PCA9514ADP 9/19/2012

Ordering Information

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
PCA9513ADP		SOT505-1	Reflow_Soldering_Profile	Reel 13" Q1/T1	Active	PCA9513ADP,118 (9352 798 65118)	9513A	PCA9513ADP		Always Pb-free	0.0	2.0	5E8	1	1
PCA9514ADP		SOT505-1	Reflow_Soldering_Profile	Reel 13" Q1/T1	Active	PCA9514ADP,118 (9352 798 68118)	9514A	PCA9514ADP		Always Pb-free	0.0	2.0	5E8	1	1
PCA9514AD		SOT96-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1	Active	PCA9514AD,118 (9352 798 67118)	PA9514A	PCA9514AD		Always Pb-free	0.0	2.0	5E8	1	1
				Bulk Pack	Active	PCA9514AD,112 (9352 798 67112)	PA9514A	PCA9514AD		Always Pb-free	0.0	2.0	5E8	1	1
PCA9513AD		SOT96-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1	Active	PCA9513AD,118 (9352 798 66118)	PA9513A	PCA9513AD		Always Pb-free	0.0	2.0	5E8	1	1
				Bulk Pack	Active	PCA9513AD,112 (9352 798 66112)	PA9513A	PCA9513AD		Always Pb-free	0.0	2.0	5E8	1	1