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MC74LVX245 Datasheet, PDF (1/8 Pages) Motorola, Inc – LOW-VOLTAGE CMOS | |||
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MC74LVX245
Octal Bus Transceiver
With 5 VâTolerant Inputs
The MC74LVX245 is an advanced high speed CMOS octal bus
transceiver.
It is intended for twoâway asynchronous communication between
data buses. The direction of data transmission is determined by the
level of the T/R input. The output enable pin (OE) can be used to
disable the device, so that the buses are effectively isolated.
All inputs are equipped with protection circuits against static
discharge.
Features
⢠High Speed: tPD = 4.7 ns (Typ) at VCC = 3.3 V
⢠Low Power Dissipation: ICC = 4 mA (Max) at TA = 25°C
⢠Power Down Protection Provided on Inputs
⢠Balanced Propagation Delays
⢠Low Noise: VOLP = 0.8 V (Max)
⢠Pin and Function Compatible with Other Standard Logic Families
⢠Latchup Performance Exceeds 300 mA
⢠ESD Performance: Human Body Model > 2000 V;
Machine Model > 200 V
⢠PbâFree Packages are Available*
Application Notes
⢠Do not force a signal on an I/O pin when it is an active output,
damage may occur
⢠All floating (high impedance) input or I/O pins must be fixed by
means of pullup or pulldown resistors or bus terminator ICs
⢠A parasitic diode is formed between the bus and VCC terminals.
Therefore, the LVX245 cannot be used to interface 5.0 V to 3.0 V
systems directly
VCC OE B0 B1 B2 B3 B4 B5 B6 B7
20 19 18 17 16 15 14 13 12 11
http://onsemi.com
MARKING
DIAGRAMS
20
1
20
SOICâ20
DW SUFFIX
CASE 751D
1
LVX245
AWLYYWW
20
1
20
TSSOPâ20
DT SUFFIX
CASE 948E
1
LVX
245
ALYW
20
1
20
SOEIAJâ20
M SUFFIX
CASE 967
1
74LVX245
AWLYWW
A
= Assembly Location
WL, L = Wafer Lot
Y, YY = Year
W, WW = Work Week
1 2 3 4 5 6 7 8 9 10
T/R A0 A1 A2 A3 A4 A5 A6 A7 GND
Figure 1. 20âLead Pinout (Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
*For additional information on our PbâFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
1
March, 2005 â Rev. 3
Publication Order Number:
MC74LVX245/D
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