MC74LCX16244_V01中文资料安森美半导体数据手册PDF规格书

The MC74LCX16244 is a high performance, non−inverting 16−bit

buffer operating from a 2.3 to 3.6 V supply. The device is nibble

controlled. Each nibble has separate Output Enable inputs which can

be tied together for full 16−bit operation. 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 MC74LCX16244

inputs to be safely driven from 5.0 V devices. The MC74LCX16244 is

suitable for memory address driving and all TTL level bus oriented

transceiver applications.

The 4.5 ns maximum propagation delays support high performance

applications. Current drive capability is 24 mA at the outputs. The

Output Enable (OEn) inputs, when HIGH, disable the outputs by

placing them in a HIGH Z condition.

The MC74LCX16244 contains sixteen non−inverting buffers with

3−state 5.0 V−tolerant outputs. The device is nibble controlled with

each nibble functioning identically, but independently. The control

pins may be tied together to obtain full 16−bit operation. The 3−state

outputs are controlled by an Output Enable (OEn) input for each

nibble. When OEn is LOW, the outputs are on. When OEn is HIGH,

the outputs are in the high impedance state.

特性 Features

• Designed for 2.3 V to 3.6 V VCC Operation

• 4.5 ns Maximum tpd

• 5.0 V Tolerant − Interface Capability With 5.0 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 (20 A)

Substantially Reduces System Power Requirements

• Latchup Performance Exceeds 500 mA

• ESD Performance:

♦ Human Body Model >2000 V

♦ Machine Model >200 V

• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant