PCA9510 Philips Semiconductors (Acquired by NXP), PCA9510 Datasheet - Page 2

• Manufacturer Part Number: PCA9510
• Description: Hot Swappable I2C And Smbus Bus Bufferhot Swappable i C And Smbus Buffers 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 Unti
• Manufacturer: Philips Semiconductors (Acquired by NXP)

DESCRIPTION
The PCA9510 and PCA9511 are hot swappable I
buffers 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 PCA9510 and PCA9511
provides bi-directional 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, while the PCA9510 has no rise time accelerator
circuitry to prevent interference when there are multiple devices in
the same system. The PCA9510 and PCA9511 incorporate 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 PCA9510 (IN only) and PCA9511 SDA and
SCL lines are precharged to 1 V to minimize the current required to
charge the parasitic capacitance of the chip.
APPLICATION
•
ORDERING INFORMATION
Standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.
Philips Semiconductors
2003 Dec 18
cPCI, VME, AdvancedTCA cards and other multi-point backplane
cards that are required to be inserted or removed from an
operating system.
Hot swappable I
SMBus bus buffer
8-pin plastic SO
8-pin plastic SO
8-pin plastic TSSOP (MSOP)
8-pin plastic TSSOP (MSOP)
PACKAGES
2
C and
TEMPERATURE RANGE
-40 to +85 °C
-40 to +85 °C
-40 to +85 °C
-40 to +85 °C
2
C and SMBus
2
ORDER CODE
PCA9510DP
PCA9511DP
PCA9510D
PCA9511D
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Bi-directional buffer for SDA and SCL lines increases fanout and
prevents SDA and SCL corruption during live board insertion and
removal from multi-point backplane systems
Compatible with I
standards
∆V/∆t rise time accelerators on all SDA and SCL lines (PCA9511
only)
Rise time accelerator threshold of 0.6 V
Active high ENABLE input
Active high READY open-drain output
High impedance SDA and SCL pins for V
1 V precharge on all SDA and SCL lines (PCA9510 IN only)
Supports clock stretching and multiple master
arbitration/synchronization
Operating power supply voltage range: 2.7 V to 5.5 V
5.5 V tolerant I/Os
0 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
Package offer: SO8, TSSOP8
2
C standard mode, I
TOPSIDE MARK
PCA9510
PCA9511
9510
9511
PCA9510; PCA9511
2
C fast mode, and SMBus
CC
DRAWING NUMBER
= 0 V
SOT505-1
SOT505-1
SOT96-1
SOT96-1
Product data