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SEMICONDUCTOR TECHNICAL DATA
1
REV 0
Motorola, Inc. 1997
6/97
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#! ! ! "!
The MC74LVX240 is an advanced high speed CMOS inverting 3–state
octal bus buffer and has two active low output enables. It is also designed
to work with 3–state memory address drivers, etc. The inputs tolerate
voltages up to 7V, allowing the interface of 5V systems to 3V systems.
• High Speed: t
PD
= 4.3ns (Typ) at VCC = 3.3V
• Low Power Dissipation: I
CC
= 4µA (Max) at TA = 25°C
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Low Noise: V
OLP
= 0.8V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300mA
• ESD Performance: HBM > 2000V; Machine Model > 200V
Figure 1. 20–Lead Pinout (Top View)
Figure 2. Logic Diagram
1920 18 17 16 15 14
21 34567
V
CC
13
8
12
9
11
10
2OE
1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3
1OE
1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND
1OE
1
1D0
2
1O0
18
1D1
4
1O1
16
1D2
6
1O2
14
1D3
8
1O3
12
2OE
19
2D0
17
2O0
3
2D1
15
2O1
5
2D2
13
2O2
7
2D3
11
2O3
9
LVX
LOW–VOLTAGE CMOS
DW SUFFIX
20–LEAD SOIC PACKAGE
CASE 751D–04
DT SUFFIX
20–LEAD TSSOP PACKAGE
CASE 948E–02
M SUFFIX
20–LEAD SOIC EIAJ PACKAGE
CASE 967–01
1OE, 2OE 1Dn, 2Dn 1On, 2On
L
L
H
L
H
X
L
H
Z
INPUTS OUTPUTS
FUNCTION TABLE
PIN NAMES
Function
Output Enable Inputs
Data Inputs
3–State Outputs
Pins
nOE
1Dn, 2Dn
1On
, 2On
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MC74LVX240
MOTOROLA LVX Data — Low–Voltage CMOS Logic
BR1492 — Rev 0
2
DC Output Current, per Pin
DC Supply Current, VCC and GND Pins
_
C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or
conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is
not implied.
RECOMMENDED OPERATING CONDITIONS
Operating Temperature, All Package Types
DC ELECTRICAL CHARACTERISTICS
High–Level Output Voltage
(Vin = VIH or VIL)
IOH = –50µA
IOH = –50µA
IOH = –4mA
Low–Level Output Voltage
(Vin = VIH or VIL)
IOL = 50µA
IOL = 50µA
IOL = 4mA
Maximum Three–State
Leakage Current
Vin = VIL or V
IH
V
out
= VCC or GND