pca9514a NXP Semiconductors, pca9514a Datasheet

no-image

pca9514a

Manufacturer Part Number
pca9514a
Description
Hot Swappable I2c-bus And Smbus Bus Buffer
Manufacturer
NXP Semiconductors
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
pca9514aD
Manufacturer:
LT
Quantity:
5 027
Part Number:
pca9514aD
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Part Number:
pca9514aDP
Manufacturer:
ALEPH
Quantity:
7 590
Part Number:
pca9514aDP
Manufacturer:
NXP
Quantity:
2 900
Part Number:
pca9514aDP
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Part Number:
pca9514aDPЈ¬118
Manufacturer:
PH3
Quantity:
25 000
1. General description
2. Features
The PCA9513A and PCA9514A are hot swappable I
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 A 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 V
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 cannot
connect to the static offset I/Os used on the PCA9515/15A/16/16A/18 or PCA9517 B side
or P82B96 Sx/y side.
I
I
I
I
I
I
I
PCA9513A; PCA9514A
Hot swappable I
Rev. 04 — 18 August 2009
Bidirectional buffer for SDA and SCL lines increases fan-out and prevents SDA and
SCL corruption during live board insertion and removal from multipoint backplane
systems
Compatible with I
Built-in V/ t rise time accelerators on all SDA and SCL lines (0.8 V threshold)
requires the bus pull-up voltage and supply voltage (V
Rise time accelerator threshold moved from 0.6 V to 0.8 V for improved noise margin
Active HIGH ENABLE input
Active HIGH READY open-drain output
High-impedance SDAn and SCLn pins for V
2
C-bus Standard mode, I
2
C-bus and SMBus bus buffer
CC
.
2
C-bus Fast mode, and SMBus standards
CC
= 0 V
2
C-bus and SMBus buffers that allow
CC
) to be the same
Product data sheet

Related parts for pca9514a

pca9514a Summary of contents

Page 1

... The current source is high-impedance whenever the pin voltage is greater than the part V The PCA9513A and PCA9514A rise time accelerator threshold is 0 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 ...

Page 2

... PA9514A SO8 PCA9513ADP 9513A TSSOP8 PCA9514ADP 9514A TSSOP8 [1] Also known as MSOP8. PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable I PCA9510A PCA9511A PCA9512A PCA9513A PCA9514A yes = 0 V yes yes - in only - Description plastic small outline package; 8 leads; body width 3.9 mm plastic small outline package; 8 leads; body width 3.9 mm [1] plastic thin shrink small outline package ...

Page 3

... SLEW RATE DETECTOR BACKPLANE-TO-CARD CONNECTION CONNECT STOP BIT AND BUS IDLE 0 100 s DELAY 0.5 pF Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 C-bus and SMBus bus buffer 2 mA SLEW RATE DETECTOR CONNECT 2 mA SLEW RATE DETECTOR CONNECT 0.55V 0.45V CONNECT UVLO ...

Page 4

... NXP Semiconductors PCA9514A SDAIN SCLIN 0.55V / CC 0.45V CC UVLO ENABLE Fig 2. Block diagram of PCA9514A PCA9513A_PCA9514A_4 Product data sheet Hot swappable SLEW RATE DETECTOR BACKPLANE-TO-CARD CONNECTION CONNECT 2 mA SLEW RATE DETECTOR BACKPLANE-TO-CARD CONNECTION CONNECT STOP BIT AND BUS IDLE 0 ...

Page 5

... SDA bus on the card 8 power supply Figure 1 “Block diagram of PCA9513A” ) and remaining HIGH when all the SDAn and SCLn pins have been en Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 Hot swappable I C-bus and SMBus bus buffer ENABLE 1 SCLOUT ...

Page 6

... RC time constant. As long as the slew rate is at least 1. when the pin voltage exceeds 0.8 V for the PCA9513A and PCA9514A, the rise time accelerators’ circuits are turned on and the pull-down driver is turned off. ...

Page 7

... If this were the SCL line, the parts on buffer A and buffer C would see a false clock rather than a stretched clock, which would cause a system error. The PCA9513A and PCA9514A rise time accelerator threshold is 0 there is 0.2 V more noise margin. ...

Page 8

... Rise time accelerators During positive bus transitions current source is switched on to quickly slew the SDA and SCL lines HIGH once the input level of 0.8 V for the PCA9513A and PCA9514A are exceeded. The rising edge rate should be at least 1. guarantee turn on of the accelerators ...

Page 9

... NXP Semiconductors rise time = 300 ns 20 rise time = (1) Unshaded area indicates recommended pull-up, for rise time < 300 ns, with PCA9513A/PCA9514A. (2) Rise time without PCA9513A/PCA9514A. Fig 6. Bus requirements for 3.3 V systems (1) Unshaded area indicates recommended pull-up, for rise time < 300 ns, with PCA9513A/PCA9514A. ...

Page 10

... BD_SEL SDA SCL Remark: The PCA9514A can be used in any combination depending on the number of rise time accelerators that are needed by the system. Normally only one PCA9514A would be required per bus. Fig 8. Hot swapping multiple I/O cards into a backplane using the PCA9514A in a cPCI, VME, and AdvancedTCA ...

Page 11

... CONNECTOR BACKPLANE V CC BD_SEL SDA SCL Fig 9. Hot swapping multiple I/O cards into a backplane using the PCA9513A in a cPCI, VME, and AdvancedTCA system PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable I I/O PERIPHERAL CARD 1 POWER SUPPLY HOT SWAP ENABLE SDAOUT SDAIN ...

Page 12

... NXP Semiconductors BACKPLANE CONNECTOR BACKPLANE SDA SCL Fig 10. Hot swapping multiple I/O cards into a backplane using the PCA9514A in a PCI system Fig 11. System with disparate V PCA9513A_PCA9514A_4 Product data sheet ENABLE SDAIN SCLIN C2 0.01 F ENABLE SDAIN SCLIN C4 0. drop ...

Page 13

... NXP Semiconductors 9. Application design-in information Fig 12. Typical application of PCA9513A Fig 13. Typical application of PCA9514A PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable (2 5 SCLIN 6 SDAIN 1 ENABLE ENABLE GND SCLIN 6 SDAIN 1 ENABLE ENABLE GND Rev. 04 — ...

Page 14

... LZ(READY) pin READY C input capacitance on pin i(ENABLE) ENABLE C output capacitance on pin o(READY) READY V LOW-level output voltage on OL(READY) pin READY PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable I Conditions 10 s max. Conditions [ SDAIN SCLIN all other ...

Page 15

... SCL signals [1] This specification applies over the full operating temperature range. [2] The enable time can slow considerably for some parts when temperature is < PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable I Conditions [5][6] positive transition on SDA, SCL 2 slew rate = 1. ...

Page 16

... Fig 15. I 002aab589 350 V O (mV) 250 150 + amb = 10 k PU(out) Fig 17. Connection circuitry V Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 Hot swappable I C-bus and SMBus bus buffer characteristics”. characteristics”. and measure the SDAOUT and SCLOUT +25 ...

Page 17

... SCLIN, SDAIN, SCLOUT, SDAOUT ENABLE READY t is only applicable after the t stp(READY) Fig 20. t delay that can occur after t stp(READY) PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable idle(READY) , and t dis t en delay ...

Page 18

... Test information R = load resistor load capacitance includes jig and probe capacitance termination resistance should be equal to the output impedance Z T Fig 21. Test circuitry for switching times PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable PULSE DUT GENERATOR Rev. 04 — ...

Page 19

... 0.49 0.25 5.0 4.0 1.27 0.36 0.19 4.8 3.8 0.019 0.0100 0.20 0.16 0.244 0.05 0.014 0.0075 0.19 0.15 0.228 REFERENCES JEDEC JEITA MS-012 Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 Hot swappable I C-bus and SMBus bus buffer detail 6.2 1.0 0.7 1 ...

Page 20

... 2.5 scale (1) ( 0.45 0.28 3.1 3.1 0.65 0.25 0.15 2.9 2.9 REFERENCES JEDEC JEITA Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 Hot swappable I C-bus and SMBus bus buffer detail 5.1 0.7 0.94 0.1 0.1 0.1 4.7 0.4 EUROPEAN PROJECTION ...

Page 21

... Solder bath specifications, including temperature and impurities PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable I Rev. 04 — 18 August 2009 2 C-bus and SMBus bus buffer © NXP B.V. 2009. All rights reserved. ...

Page 22

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 24. Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 C-bus and SMBus bus buffer Figure 24) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 250 ...

Page 23

... Human Body Model Inter-Integrated Circuit bus Machine Model Peripheral Component Interface PCI Industrial Computer Manufacturers Group System Management Bus VERSAModule Eurocard Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 Hot swappable I C-bus and SMBus bus buffer peak temperature time 001aac844 © NXP B.V. 2009. All rights reserved. ...

Page 24

... Product data sheet Product data sheet Product data sheet Rev. 04 — 18 August 2009 PCA9513A; PCA9514A 2 Hot swappable I C-bus and SMBus bus buffer Change notice Supersedes ...

Page 25

... Contact information For more information, please visit: For sales office addresses, please send an email to: PCA9513A_PCA9514A_4 Product data sheet PCA9513A; PCA9514A Hot swappable I [3] Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. ...

Page 26

... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2009. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Document identifier: PCA9513A_PCA9514A_4 All rights reserved. Date of release: 18 August 2009 ...

Related keywords