PCA9517集成电路(IC)信号缓冲器、中继器、分离器规格书PDF中文资料
厂商型号 |
PCA9517 |
参数属性 | PCA9517 封装/外壳为8-SOIC(0.154",3.90mm 宽);包装为卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带;类别为集成电路(IC) > 信号缓冲器、中继器、分离器;PCA9517应用范围:I²C;产品描述:IC REDRIVER I2C 1CH 400KHZ 8SO |
功能描述 | Level translating I2C-bus repeater |
文件大小 |
127.66 Kbytes |
页面数量 |
19 页 |
生产厂商 | NXP Semiconductors |
企业简称 |
nxp【恩智浦】 |
中文名称 | 恩智浦半导体公司官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-4-29 20:14:00 |
PCA9517规格书详情
General description
The PCA9517 is a CMOS integrated circuit that provides level shifting between low voltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) I2C-bus or SMBus applications. While retaining all the operating modes and features of the I2C-bus system during the level shifts, it also permits extension of the I2C-bus by providing bidirectional buffering for both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF. Using the PCA9517 enables the system designer to isolate two halves of a bus for both voltage and capacitance. The SDA and SCL pins are over voltage tolerant and are high-impedance when the PCA9517 is unpowered.
The 2.7 V to 5.5 V bus B-side drivers behave much like the drivers on the PCA9515A device, while the adjustable voltage bus A-side drivers drive more current and eliminate the static offset voltage. This results in a LOW on the B-side translating into a nearly 0 V LOW on the A-side which accommodates smaller voltage swings of lower voltage logic.
The static offset design of the B-side PCA9517 I/O drivers prevent them from being connected to another device that has rise time accelerator including the PCA9510, PCA9511, PCA9512, PCA9513, PCA9514, PCA9515A, PCA9516A, PCA9517 (B-side), or PCA9518. The A-side of two or more PCA9517s can be connected together, however, to allow a star topography with the A-side on the common bus, and the A-side can be connected directly to any other buffer with static or dynamic offset voltage. Multiple PCA9517s can be connected in series, A-side to B-side, with no build-up in offset voltage with only time of flight delays to consider.
The PCA9517 drivers are not enabled unless VCCA is above 0.8 V and VCC is above 2.5 V. The EN pin can also be used to turn the drivers on and off under system control. Caution should be observed to only change the state of the enable pin when the bus is idle.
The output pull-down on the B-side internal buffer LOW is set for approximately 0.5 V, while the input threshold of the internal buffer is set about 70 mV lower (0.43 V). When the B-side I/O is driven LOW internally, the LOW is not recognized as a LOW by the input. This prevents a lock-up condition from occurring. The output pull-down on the A-side drives a hard LOW and the input level is set at 0.3VCCA to accommodate the need for a lower LOW level in systems where the low voltage side supply voltage is as low as 0.9 V.
Features
■ 2 channel, bidirectional buffer isolates capacitance and allows 400 pF on either side of
the device
■ Voltage level translation from 0.9 V to 5.5 V and from 2.7 V to 5.5 V
■ Footprint and functional replacement for PCA9515/15A
■ I2C-bus and SMBus compatible
■ Active HIGH repeater enable input
■ Open-drain input/outputs
■ Lock-up free operation
■ Supports arbitration and clock stretching across the repeater
■ Accommodates Standard mode and Fast mode I2C-bus devices and multiple masters
■ Powered-off high-impedance I2C-bus pins
■ A-side operating supply voltage range of 0.9 V to 5.5 V
■ B-side operating supply voltage range of 2.7 V to 5.5 V
■ 5 V tolerant I2C-bus and enable pins
■ 0 Hz to 400 kHz clock frequency (the maximum system operating frequency may be
less than 400 kHz because of the delays added by the repeater).
■ ESD protection exceeds 2000 V HBM per JESD22-A114, 150 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 and TSSOP8
PCA9517属于集成电路(IC) > 信号缓冲器、中继器、分离器。恩智浦半导体公司制造生产的PCA9517信号缓冲器、中继器、分离器信号缓冲器、中继器和分离器系列中的产品适用于远距离电气互连或电缆系统的数字信息传输。所有实际互连系统都具有非理想特性,该系列产品主要用于解决数字信息传输过程中因此造成的模拟问题。此外,还有其他功能,例如不同物理接口样式之间的转换和多路复用。
产品属性
- 产品编号:
PCA9517AD,118
- 制造商:
NXP USA Inc.
- 类别:
集成电路(IC) > 信号缓冲器、中继器、分离器
- 包装:
卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带
- 类型:
缓冲器,转接驱动器
- 应用:
I²C
- 输入:
2 线式总线
- 输出:
2 线式总线
- 数据速率(最大值):
400kHz
- 通道数:
2
- 电压 - 供电:
2.7V ~ 5.5V
- 电流 - 供电:
5mA
- 工作温度:
-40°C ~ 85°C
- 安装类型:
表面贴装型
- 封装/外壳:
8-SOIC(0.154",3.90mm 宽)
- 供应商器件封装:
8-SO
- 描述:
IC REDRIVER I2C 1CH 400KHZ 8SO
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
21+ |
SOP8 |
8800 |
公司只做原装正品 |
询价 | ||
NXP/恩智浦 |
2021/2022+ |
NA |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
NXP(恩智浦) |
23+ |
标准封装 |
37048 |
全新原装正品/价格优惠/质量保障 |
询价 | ||
NXP(恩智浦) |
23+ |
NA/ |
8735 |
原厂直销,现货供应,账期支持! |
询价 | ||
NXP/恩智浦 |
24+ |
SOP8 |
990000 |
明嘉莱只做原装正品现货 |
询价 | ||
NXP(恩智浦) |
23+ |
NA |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
TI |
2023+ |
SOP8 |
6000 |
原装正品现货、支持第三方检验、终端BOM表可配单提供 |
询价 | ||
TI |
23+ |
SOP8 |
12700 |
买原装认准中赛美 |
询价 | ||
NXP(恩智浦) |
23+ |
NA |
20094 |
正纳10年以上分销经验原装进口正品做服务做口碑有支持 |
询价 | ||
TI |
SOP8 |
39800 |
公司只有原装 |
询价 |
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