Datasheet > 驱动程序和接口 > 线路驱动器或接收器> SN65HVS881PWPR

SN65HVS881PWPR

更新时间： 2024-11-20 11:06:55

品牌	Logo	应用领域
德州仪器 - TI		驱动线路驱动器或接收器驱动程序和接口
页数	文件大小	规格书
22页	825K
描述
具有诊断功能的 34V、8 通道数字输入串行器 \| PWP \| 28 \| -40 to 125

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SN65HVS881PWPR 数据手册

SN65HVS881

www.ti.com................................................................................................................................................................................................... SLAS642–MARCH 2009

INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER WITH DIAGNOSTICS

FEATURES

•

Cascadable in Multiples of Eight Inputs

SPI-Compatible Interface

•

Eight Inputs

–

High Input Voltage – up to 34 V

Regulated 5-V Output for External Isolator

Selectable Debounce Filters – 0 ms to 3 ms

Flexible Input Current Limit: 0.2 to 5.2 mA

Field Pins Protected to 15-kV HBM ESD

APPLICATIONS

•

Sensor Inputs for Industrial Automation and

Process Control

High Channel Count Digital Input Modules for

PC and PLC Systems

Decentralized I/O Modules

Motion Control Systems

•

Diagnostics:

•

–

Parity Check

•

Undervoltage Indication

Overtemperature Indication

Output Drivers for External Status LEDs

DESCRIPTION

The SN65HVS881 is an eight channel, digital-input serializer for high-channel density digital input modules in

industrial automation. In combination with galvanic isolators the device completes the interface between the high

voltage signals on the field-side and the low-voltage signals on the controller side. Input signals are

current-limited and then validated by internal debounce filters.

With the addition of a few external components, the input switching characteristics can be configured in

accordance with IEC61131-2 for Type 1, 2 and 3 sensor switches.

Upon the application of load and clock signals, input data is latched in parallel into the shift register and

afterwards clocked out serially.

Cascading of multiple devices is possible by connecting the serial output of the leading device with the serial

input of the following device, enabling the design of high-channel count input modules. Multiple devices can be

cascaded through a single serial port, reducing both the isolation channels and controller inputs required.

Input status can be visually indicated via constant current LED outputs. The current limit on the inputs is set by a

single external precision resistor. An integrated voltage regulator provides a 5V output to supply low-power

isolators. An on-chip temperature sensor provides diagnostic information for graceful shutdown and system

safety. An internal parity check for odd parity ensures trustworthy transmission of serial data to the system

controller.

The SN65HVS881 is available in a 28-pin PWP PowerPAD™ package, allowing for efficient heat dissipation. The

device is characterized for operation at temperatures from –40°C to 125°C

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...22

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SN65HVS881PWPR 替代型号

型号	品牌	替代类型	描述	数据表
SN65HVS881PWP	TI	完全替代	具有诊断功能的 34V、8 通道数字输入串行器 \| PWP \| 28 \| -40 to 1

与SN65HVS881PWPR相关器件

型号	品牌	获取价格	描述	数据表
SN65HVS882	TI	获取价格	INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER
SN65HVS882_1	TI	获取价格	INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER
SN65HVS882PWP	TI	获取价格	INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER
SN65HVS882PWPG4	TI	获取价格	INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER
SN65HVS882PWPR	TI	获取价格	INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER
SN65HVS882PWPRG4	TI	获取价格	INDUSTRIAL 8-DIGITAL-INPUT SERIALIZER
SN65HVS883	TI	获取价格	34V、8 通道数字输入串行器
SN65HVS883PWP	TI	获取价格	34V、8 通道数字输入串行器 \| PWP \| 28 \| -40 to 85
SN65HVS883PWPR	TI	获取价格	34V、8 通道数字输入串行器 \| PWP \| 28 \| -40 to 85
SN65HVS885	TI	获取价格	34 V, Digital-Input Serializer for 5V Systems

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