74ALVCHR16245ZQLR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

74ALVCHR16245ZQLR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74ALVCHR16245ZQLR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。

FEATURES

· Member of the Texas Instruments Widebus™

Family

· Operates From 1.65 V to 3.6 V

· Max tpd of 4.2 ns at 3.3 V

· ±12-mA Output Drive at 3.3 V

· All Outputs Have Equivalent 26-W Series

Resistors, So No External Resistors Are

Required

· Bus Hold on Data Inputs Eliminates the Need

for External Pullup/Pulldown Resistors

· Latch-Up Performance Exceeds 250 mA Per

JESD 17

· ESD Protection Exceeds JESD 22

- 2000-V Human-Body Model (A114-A)

- 200-V Machine Model (A115-A)

DESCRIPTION/ORDERING INFORMATION

This 16-bit (dual-octal) noninverting bus transceiver is

designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCHR16245 is designed for

asynchronous communication between data buses.

The control-function implementation minimizes

external timing requirements.

This device can be used as two 8-bit transceivers or

one 16-bit transceiver. It allows data transmission

from the A bus to the B bus or from the B bus to the

A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE)

input can be used to disable the device so that the

buses are effectively isolated.

All outputs, which are designed to sink up to 12 mA, include equivalent 26-W series resistors to reduce overshoot

and undershoot.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors

with the bus-hold circuitry is not recommended.