MC145472FE

更新时间： 2024-11-23 22:36:27

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		锁存器
页数	文件大小	规格书
6页	127K
描述
LOW-VOLTAGE CMOS 16-BIT TRANSPARENT LATCH

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数据手册

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MC145472FE 数据手册

SEMICONDUCTOR TECHNICAL DATA

The MC74LCX16373 is a high performance, non–inverting 16–bit

transparent latch operating from a 2.7 to 3.6V supply. The device is byte

controlled. Each byte has separate Output Enable and Latch Enable

inputs. These control pins 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

LOW–VOLTAGE

CMOS 16–BIT

TRANSPARENT LATCH

switching noise performance. A V specification of 5.5V allows

MC74LCX16373 inputs to be safely driven from 5V devices.

The MC74LCX16373 contains 16 D–type latches with 3–state

5V–tolerant outputs. When the Latch Enable (LEn) inputs are HIGH, data

on the Dn inputs enters the latches. In this condition, the latches are

transparent, i.e., a latch output will change state each time its D input

changes. When LE is LOW, the latches store the information that was

present on the D inputs a setup time preceding the HIGH–to–LOW

transition of LE. The 3–state outputs are controlled by the Output Enable

(OEn) inputs. When OE is LOW, the outputs are enabled. When OE is

HIGH, the standard outputs are in the high impedance state, but this does

not interfere with new data entering into the latches.

DT SUFFIX

PLASTIC TSSOP PACKAGE

CASE 1201–01

• Designed for 2.7 to 3.6V V

Operation

• 5.4ns Maximum t

• 5V Tolerant — Interface Capability With 5V TTL Logic

• Supports Live Insertion and Withdrawal

• I

OFF

Specification Guarantees High Impedance When V

= 0V

• LVTTL Compatible

• LVCMOS Compatible

• 24mA Balanced Output Sink and Source Capability

PIN NAMES

• Near Zero Static Supply Current in All Three Logic States (20µA)

Substantially Reduces System Power Requirements

Pins

Function

OEn

LEn

D0–D15

O0–O15

Output Enable Inputs

Latch Enable Inputs

Inputs

• Latchup Performance Exceeds 500mA

• ESD Performance: Human Body Model >2000V; Machine Model >200V

Outputs

11/96

REV 1

Motorola, Inc. 1996

12 3 4 5 6

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