Datasheet > PCA9306DP1-G

PCA9306DP1-G

更新时间： 2024-11-26 21:20:15

品牌	Logo	应用领域
恩智浦 - NXP		局域网光电二极管
页数	文件大小	规格书
23页	130K
描述
IC,TRANSLATOR, OTHER/SPECIAL/MISCELLANEOUS,TSSOP,8PIN,PLASTIC

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PCA9306DP1-G 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TSSOP, TSSOP8,.16	Reach Compliance Code：	unknown
风险等级：	5.84	JESD-30 代码：	R-PDSO-G8
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP8,.16
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
认证状态：	Not Qualified	子类别：	Other Interface ICs
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.635 mm
端子位置：	DUAL	Base Number Matches：	1

PCA9306DP1-G 数据手册

PCA9306

Dual bidirectional I²C-bus and SMBus voltage-level translator

Rev. 03 — 4 August 2008

Product data sheet

1. General description

The PCA9306 is a dual bidirectional I²C-bus and SMBus voltage-level translator with an

enable (EN) input, and is operational from 1.0 V to 3.6 V (V_ref(1)) and 1.8 V to 5.5 V

(V_bias(ref)(2)).

The PCA9306 allows bidirectional voltage translations between 1.0 V and 5 V without the

use of a direction pin. The low ON-state resistance (R_on) of the switch allows connections

to be made with minimal propagation delay. When EN is HIGH, the translator switch is on,

and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively,

allowing bidirectional data ﬂow between ports. When EN is LOW, the translator switch is

off, and a high-impedance state exists between ports.

The PCA9306 is not a bus buffer like the PCA9509 or PCA9517A that provide both level

translation and physically isolates the capacitance to either side of the bus when both

sides are connected. The PCA9306 only isolates both sides when the device is disabled

and provides voltage level translation when active.

The PCA9306 can be used to run two buses, one at 400 kHz operating frequency and the

other at 100 kHz operating frequency. If the two buses are operating at different

frequencies, the 100 kHz bus must be isolated when the 400 kHz operation of the other

bus is required. If the master is running at 400 kHz, the maximum system operating

frequency may be less than 400 kHz because of the delays added by the translator.

As with the standard I²C-bus system, pull-up resistors are required to provide the logic

HIGH levels on the translator’s bus. The PCA9306 has a standard open-collector

conﬁguration of the I²C-bus. The size of these pull-up resistors depends on the system,

but each side of the translator must have a pull-up resistor. The device is designed to work

with Standard-mode, Fast-mode and Fast mode Plus I²C-bus devices in addition to

SMBus devices. The maximum frequency is dependent on the RC time constant, but

generally supports > 2 MHz.

When the SDA1 or SDA2 port is LOW, the clamp is in the ON-state and a low resistance

connection exists between the SDA1 and SDA2 ports. Assuming the higher voltage is on

the SDA2 port when the SDA2 port is HIGH, the voltage on the SDA1 port is limited to the

voltage set by VREF1. When the SDA1 port is HIGH, the SDA2 port is pulled to the drain

pull-up supply voltage (V_pu(D)) by the pull-up resistors. This functionality allows a seamless

translation between higher and lower voltages selected by the user without the need for

directional control. The SCL1/SCL2 channel also functions as the SDA1/SDA2 channel.

All channels have the same electrical characteristics and there is minimal deviation from

one output to another in voltage or propagation delay. This is a beneﬁt over discrete

transistor voltage translation solutions, since the fabrication of the switch is symmetrical.

The translator provides excellent ESD protection to lower voltage devices, and at the

same time protects less ESD-resistant devices.

12 3 4 5 6 7...23

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与PCA9306DP1-G相关器件

型号	品牌	获取价格	描述	数据表
PCA9306DP-T	NXP	获取价格	IC SPECIALTY INTERFACE CIRCUIT, PDSO8, 3 MM, PLASTIC, SOT505-1, TSSOP-8, Interface IC:Othe
PCA9306DQER	TI	获取价格	DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR
PCA9306DTR2G	NXP	获取价格	Dual Bidirectional I2C-bus and SMBus Voltage-Level Translator
PCA9306DTR2G	ONSEMI	获取价格	双双向 I2C 总线和 SMBus 电压级转换器
PCA9306FMUTAG	ONSEMI	获取价格	双双向 I2C 总线和 SMBus 电压级转换器
PCA9306FMUTCG	NXP	获取价格	Dual Bidirectional I2C-bus and SMBus Voltage-Level Translator
PCA9306FMUTCG	ONSEMI	获取价格	双双向 I2C 总线和 SMBus 电压级转换器
PCA9306GD1	NXP	获取价格	Dual bidirectional I2C-bus and SMBus voltage-level translator
PCA9306GF	NXP	获取价格	Dual bidirectional I2C-bus and SMBus voltage-level translator
PCA9306GF,115	NXP	获取价格	PCA9306 - Dual bidirectional I2C-bus and SMBus voltage-level translator SON 8-Pin

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