MC74LCX16244 Motorola, MC74LCX16244 Datasheet

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MC74LCX16244

Manufacturer Part Number
MC74LCX16244
Description
LOW-VOLTAGE CMOS 16-BIT BUFFER
Manufacturer
Motorola
Datasheet

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Low-Voltage CMOS
16-Bit Buffer
With 5V-Tolerant Inputs and Outputs
(3-State, Non-Inverting)
buffer operating from a 2.7 to 3.6V 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 V I specification of
5.5V allows MC74LCX16244 inputs to be safely driven from 5V devices.
The MC74LCX16244 is suitable for memory address driving and all TTL
level bus oriented transceiver applications.
applications. Current drive capability is 24mA at the outputs. The Output
Enable (OEn) inputs, when HIGH, disable the outputs by placing them in
a HIGH Z condition.
3–state 5V–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.
10/96
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1996
Designed for 2.7 to 3.6V V CC Operation
4.5ns Maximum t pd
5V Tolerant — Interface Capability With 5V TTL Logic
Supports Live Insertion and Withdrawal
I OFF Specification Guarantees High Impedance When V CC = 0V
LVTTL Compatible
LVCMOS Compatible
24mA 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 500mA
ESD Performance: Human Body Model >2000V;
Machine Model >200V
The MC74LCX16244 is a high performance, non–inverting 16–bit
4.5ns maximum propagation delays support high performance
The MC74LCX16244 contains sixteen non–inverting buffers with
1
www.DataSheet4U.com
PIN NAMES
Pins
OEn
D0–D15
O0–O15
REV 1
MC74LCX16244
CMOS 16–BIT BUFFER
PLASTIC TSSOP PACKAGE
LOW–VOLTAGE
Function
Output Enable Inputs
Inputs
Outputs
CASE 1201–01
DT SUFFIX

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MC74LCX16244 Summary of contents

Page 1

... High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance specification of 5.5V allows MC74LCX16244 inputs to be safely driven from 5V devices. The MC74LCX16244 is suitable for memory address driving and all TTL level bus oriented transceiver applications. ...

Page 2

... MC74LCX16244 OE1 1 48 OE2 GND 4 45 GND GND 10 39 GND GND GND 15 34 O10 16 33 D10 O11 17 32 ...

Page 3

... V CC 3.6V –100 2.7V –12mA 3.0V –18mA 3.0V –24mA 2. 3.6V 100 2.7V 12mA 3.0V 16mA 3.0V 24mA 3 MC74LCX16244 Condition Unit V V Output in 3–State V Note < GND < GND > ...

Page 4

... MC74LCX16244 DC ELECTRICAL CHARACTERISTICS Symbol Characteristic I I Input Leakage Current I OZ 3–State Output Current I OFF Power–Off Leakage Current I CC Quiescent Supply Current I CC Increase per Input AC CHARACTERISTICS ( 2.5ns 50pF 500 ) Symbol Parameter t PLH Propagation Delay t PHL ...

Page 5

... PZH t PHZ 1.5V t PZL t PLZ 1.5V WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES 2.5ns, 10 1MHz 500ns Figure 1. AC Waveforms V CC DUT TEST Figure 2. Test Circuit 5 MC74LCX16244 2. 2. – 0. 0.3V GND 6V OPEN R 1 GND ...

Page 6

... D 0.05 0.15 0.002 0.006 F 0.50 0.75 0.020 0.030 G 0.50 BSC 0.0197 BSC H 0.37 ––– 0.015 ––– J 0.09 0.20 0.004 0.008 J1 0.09 0.16 0.004 0.006 K 0.17 0.27 0.007 0.011 –W– K1 0.17 0.23 0.007 0.009 L 7.95 8.25 0.313 0.325 MC74LCX16244/D LCX DATA BR1339 — REV 2 ...

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