The PCA9511 is a are hot swappable I2C-bus and SMBus buffer that allows 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 PCA9511 provides bidirectional buffering, keeping the backplane and card capacitances isolated.
The PCA9511 rise time accelerator circuitry allows the use of weaker DC pull-up currents while still meeting rise time requirements to prevent interference when there are multiple devices in the same system. The PCA9511 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).
During insertion, the PCA9511 SDA and SCL lines are precharged to 1 V to minimize the current required to charge the parasitic capacitance of the chip.
The dynamic offset design of the PCA9510/11/12/13/14 I/O drivers allow them to be connected to another PCA9510/11/12/13/14 device in series or in parallel and to the A side of the PCA9517. The PCA9510/11/12/13/14 can not connect to the static offset I/Os used on the PCA9515/15A/16/16A/17 B side and PCA9518.
All type numbers in the table below are discontinued. See the table Discontinued information for more information.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| PCA9511DP | PCA9511DP,118 | 9352 752 28118 | Discontinued Replacement product | SOT505 | Reel Pack, SMD, 13" | Standard Marking | |
| PCA9511DP/G | PCA9511DP/G,118 | 9352 780 54118 | Discontinued Replacement product | SOT505 | Reel Pack, SMD, 13" | Standard Marking |
All type numbers in the table below are discontinued. See the table Discontinued information for more information.
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| PCA9511DP | PCA9511DP,118 | PCA9511DP |
| week 12, 2005 | ||||
| PCA9511DP/G | PCA9511DP/G,118 | PCA9511DP_G |
| Always Pb-free |
| Type number | Ordering code (12NC) | Last-time buy date | Last-time delivery date | Replacement product | DN Notice | Status | Comments |
|---|---|---|---|---|---|---|---|
| PCA9511DP | 935275228118 | 1-Oct-07 | 31-Mar-08 | $product.prunedProduct.eplacementPart | DN 59 |
| Limited Supply.. This is a Boeblingen plant closure discontinued part type. |
| PCA9511DP/G | 935278054118 | $product.prunedProduct.eplacementPart | DN |
Related applications
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Application Notes
Support Documents
| Type number | Package | Operating temp.(Cel) | I²C-bus(kHz) | Operating voltage(VDC) | Inputs | Outputs |
|---|---|---|---|---|---|---|
| PCA9511DP | SOT505
| -40~85 | 400 | 2.7~5.5 | 1 | 1 |
| PCA9511DP/G | SOT505
| -40~85 | 400 | 2.7~5.5 | 1 | 1 |
Similar products
PCA9511
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