SN74LVTH16543DLR集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

SN74LVTH16543DLR属于集成电路（IC）的缓冲器驱动器接收器收发器。由美国德州仪器公司制造生产的SN74LVTH16543DLR缓冲器，驱动器，接收器，收发器逻辑缓冲器、驱动器、接收器和收发器允许隔离对某个电路的逻辑信号的访问，以用于另一电路。缓冲器将其输入信号（不变或反相）传递到其输出，并可能用于清除弱信号或驱动负载。在布尔逻辑仿真器中，缓冲器主要用于增加传播延迟。逻辑接收器和收发器允许在数据总线之间进行隔离通信。

Members of the Texas Instruments

WidebusE Family

State-of-the-Art Advanced BiCMOS

Technology (ABT) Design for 3.3-V

Operation and Low Static-Power

Dissipation

Support Mixed-Mode Signal Operation (5-V

Input and Output Voltages With 3.3-V VCC)

Support Unregulated Battery Operation

Down to 2.7 V

Ioff and Power-Up 3-State Support Hot

Insertion

Bus Hold on Data Inputs Eliminates the

Need for External Pullup/Pulldown

Resistors

Typical VOLP (Output Ground Bounce)

< 0.8 V at VCC = 3.3 V, TA = 25°C

Distributed VCC and GND Pin Configuration

Minimizes High-Speed Switching Noise

Flow-Through Architecture Optimizes PCB

Layout

Latch-Up Performance Exceeds 500 mA Per

JESD 17

ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

Package Options Include Plastic Shrink

Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages and 380-mil

Fine-Pitch Ceramic Flat (WD) Package

Using 25-mil Center-to-Center Spacings

description

The ’LVTH16543 devices are 16-bit registered transceivers designed for low-voltage (3.3-V) VCC operation, but

with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as two

8-bit transceivers or one 16-bit transceiver. Separate latch-enable (LEAB or LEBA) and output-enable (OEAB

or OEBA) inputs are provided for each register to permit independent control in either direction of data flow.

The A-to-B enable (CEAB) input must be low to enter data from A or to output data from B. If CEAB is low and

LEAB is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB puts the A latches

in the storage mode. With CEAB and OEAB both low, the 3-state B outputs are active and reflect the data present

at the output of the A latches. Data flow from B to A is similar but requires using the CEBA, LEBA, and OEBA

inputs.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.