設計・ファイル
1 設計・ファイル
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シミュレーションとモデル
PCA9511ADP IBIS model
Hot Swappable I²C-Bus and SMBus Bus Buffer
PCA9511A アラートの受信
The PCA9511A is a 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 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.
製品詳細
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Features
Key Features
- 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 I2C-bus Standard-mode, I2C-bus Fast-mode, and SMBus standards
- Built-in ΔV/Δt rise time accelerators on all SDA and SCL lines (0.6 V threshold) requires the bus pull-up voltage and supply voltage (VCC) to be the same
- Active HIGH ENABLE input
- Active HIGH READY open-drain output
- High-impedance SDA and SCL pins for VCC = 0 V
- 1 V precharge on all SDA and SCL lines
- Supporting clock stretching and multiple controller arbitration/synchronization
- Operating power supply voltage range: 2.7 V to 5.5 V
- 0 Hz 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
Packages Offered
- SO8, TSSOP8 (MSOP8)
Product Longevity Program
- This product is included in NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The PCA9511ADP is included in the 15-year program
ドキュメンテーション
クイック・リファレンス ドキュメンテーションの種類.
設計・リソース
ハードウェア
2 ハードウェア提供
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評価/開発ボードおよびシステムSurface Mount to DIP Evaluation Board
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評価/開発ボードおよびシステムDual Synchronous Rectifier Evaluation Board
エンジニアリング・サービス
NXPから直接サポートを受けるには、以下のサイトをご覧ください。 エンジニアリング・サービス.
2 エンジニアリング・サービス
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インディペンデントデザインハウス (IDH)
Hardware Design Services
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インディペンデントデザインハウス (IDH)
Embedded Software Design
本製品をサポートするパートナーの一覧は、 パートナーマーケットプレイス.