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參數(shù)資料
| 型號： | PCA9511A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Hot swappable I2C-bus and SMBus bus buffer |
| 中文描述： | 熱插拔I2C總線和SMBus總線緩沖器 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大小： | 144K |
| 代理商： | PCA9511A |
1.
General description
The PCA9511A is a hot swappable I
2
C-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 PCA9511A provides bidirectional buffering, keeping the
backplane and card capacitances isolated.
The PCA9511A rise time accelerator circuitry allows the use of weaker DC pull-up
currents while still meeting rise time requirements. The PCA9511A 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 PCA9511A SDA and SCL lines are precharged to 1 V to minimize
the current required to charge the parasitic capacitance of the chip.
2.
Features
I
Bidirectional buffer for SDA and SCL lines increases fan out and prevents SDA and
SCL corruption during live board insertion and removal from multi-point backplane
systems
I
Compatible with I
2
C-bus standard mode, I
2
C-bus fast mode, and SMBus standards
I
Built-in
V
/
t rise time accelerators on all SDA and SCL lines (0.6 V threshold)
I
Active HIGH ENABLE input
I
Active HIGH READY open-drain output
I
High-impedance SDA and SCL pins for V
CC
= 0 V
I
1 V precharge on all SDA and SCL lines
I
Supporting clock stretching and multiple master arbitration/synchronization
I
Operating power supply voltage range: 2.7 V to 5.5 V
I
0 kHz to 400 kHz clock frequency
I
ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per
JESD22-A115, and 1000 V CDM per JESD22-C101
I
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
I
Packages offered: SO8, TSSOP8 (MSOP8)
3.
Applications
I
cPCI, VME, AdvancedTCA cards and other multi-point backplane cards that are
required to be inserted or removed from an operating system
PCA9511A
Hot swappable I
2
C-bus and SMBus bus buffer
Rev. 01 — 15 August 2005
Product data sheet
相關PDF資料 |
PDF描述 |
|---|---|
| PCA9511DP | Hot swappable I2C and SMBus bus buffer |
| PCA9510 | Hot swappable I2C and SMBus bus buffer |
| PCA9510D | Hot swappable I2C and SMBus bus buffer |
| PCA9510DP | Hot swappable I2C and SMBus bus buffer |
| PCA9511 | Hot swappable I2C and SMBus bus buffer |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9511AD | 制造商: 功能描述: 制造商:NXPSEM 功能描述: |
| PCA9511AD,112 | 功能描述:緩沖器和線路驅動器 HOTSWAP I2C/SMBUS BUFFER RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| PCA9511AD,118 | 功能描述:緩沖器和線路驅動器 HOT SWAP I2C/SMBUS RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| PCA9511AD112 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| PCA9511AD-112 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Hot swappable I2C-bus and SMBus bus buffer Rev. 04 a?? 19 August 2009 |
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