MC74LCX245集成電路（IC）的緩沖器驅動器接收器收發(fā)器規(guī)格書PDF中文資料

MC74LCX245屬于集成電路（IC）的緩沖器驅動器接收器收發(fā)器。由安森美半導體公司制造生產的MC74LCX245緩沖器，驅動器，接收器，收發(fā)器邏輯緩沖器、驅動器、接收器和收發(fā)器允許隔離對某個電路的邏輯信號的訪問，以用于另一電路。緩沖器將其輸入信號（不變或反相）傳遞到其輸出，并可能用于清除弱信號或驅動負載。在布爾邏輯仿真器中，緩沖器主要用于增加傳播延遲。邏輯接收器和收發(fā)器允許在數據總線之間進行隔離通信。

Low-Voltage CMOS Octal Transceiver

With 5 V?Tolerant Inputs and Outputs (3?State, Non?Inverting)

The MC74LCX245 is a high performance, non?inverting octal transceiver operating from a 2.0 to 5.5 V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5 V allows MC74LCX245 inputs to be safely driven from 5 V devices if VCC is less than 5.0 V. The MC74LCX245 is suitable for memory address driving and all TTL level bus oriented transceiver applications.

Current drive capability is 24 mA at both A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bi?directional transceiver. Transmit (active?HIGH) enables data from A ports to B ports; Receive (active?LOW) enables data from B to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition.

Features

? Designed for 2.0 to 5.5 V VCC Operation

? 5 V Tolerant ? Interface Capability With 5 V TTL Logic

? Supports Live Insertion and Withdrawal

? IOFF Specification Guarantees High Impedance When VCC = 0 V

? LVTTL Compatible

? LVCMOS Compatible

? 24 mA Balanced Output Sink and Source Capability

? Near Zero Static Supply Current in All Three Logic States (10 μA)

Substantially Reduces System Power Requirements

? Latchup Performance Exceeds 500 mA

? ESD Performance: Human Body Model >2000 V

Machine Model >200 V

? NLV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC?Q100 Qualified and PPAP Capable

? These Devices are Pb?Free, Halogen Free/BFR Free and are RoHS Compliant