mc74vhct245a ON Semiconductor, mc74vhct245a Datasheet

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mc74vhct245a

Manufacturer Part Number
mc74vhct245a
Description
Octal Bus Transceiver
Manufacturer
ON Semiconductor
Datasheet

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MC74VHCT245A
Octal Bus Transceiver
transceiver fabricated with silicon gate CMOS technology. It achieves
high speed operation similar to equivalent Bipolar Schottky TTL
while maintaining CMOS low power dissipation.
data buses. The direction of data transmission is determined by the
level of the DIR input. The output enable pin (OE) can be used to
disable the device, so that the buses are effectively isolated.
discharge.
be used as a level converter for interfacing 3.3 V to 5.0 V, because it
has full 5.0 V CMOS level output swings.
provide protection when voltages between 0 V and 5.5 V are applied,
regardless of the supply voltage. These input and output structures
h e l p p r e v e n t d e v i c e d e s t r u c t i o n c a u s e d b y s u p p l y
voltage−input/output voltage mismatch, battery backup, hot insertion,
etc.
Features
APPLICATION NOTES
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2006
January, 2006 − Rev. 5
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
The MC74VHCT245A is an advanced high speed CMOS octal bus
It is intended for two−way asynchronous communication between
All inputs are equipped with protection circuits against static
The VHCT inputs are compatible with TTL levels. This device can
The VHCT245A input and output (when disabled) structures
damage may occur.
means of pullup or pulldown resistors or bus terminator ICs.
High Speed: t
Low Power Dissipation: I
TTL−Compatible Inputs: V
Power Down Protection Provided on Inputs and Outputs
Balanced Propagation Delays
Designed for 4.5 V to 5.5 V Operating Range
Low Noise: V
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300 mA
ESD Performance:
Chip Complexity: 304 FETs or 76 Equivalent Gates
Pb−Free Packages are Available*
Do not force a signal on an I/O pin when it is an active output,
All floating (high impedance) input or I/O pins must be fixed by
Human Body Model > 2000 V;
Machine Model > 200 V
PD
OLP
= 4.9 ns (Typ) at V
= 1.6 V (Max)
CC
IL
= 4 mA (Max) at T
= 0.8 V; V
CC
= 5.0 V
IH
= 2.0 V
A
= 25°C
1
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
(Note: Microdot may be in either location)
1
1
1
A
WL, L
YY, Y
WW, W
G or G
ORDERING INFORMATION
SOIC−20WB
SUFFIX DW
CASE 751D
CASE 948E
SOEIAJ−20
SUFFIX DT
TSSOP−20
SUFFIX M
CASE 967
http://onsemi.com
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
Publication Order Number:
20
1
20
1
20
1
MC74VHCT245A/D
DIAGRAMS
AWLYYWWG
74VHCT245
AWLYWWG
MARKING
VHCT245A
ALYWG
VHCT
245A
G

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mc74vhct245a Summary of contents

Page 1

... MC74VHCT245A Octal Bus Transceiver The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation intended for two−way asynchronous communication between data buses ...

Page 2

... Input Rise and Fall Time r f Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î MC74VHCT245A ...

Page 3

... V Minimum High Level Dynamic Input Voltage IHD V Maximum Low Level Dynamic Input Voltage ILD MC74VHCT245A Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 4

... ORDERING INFORMATION Device MC74VHCT245ADW MC74VHCT245ADWG MC74VHCT245ADWR2 MC74VHCT245ADWRG MC74VHCT245ADT MC74VHCT245ADTG MC74VHCT245ADTR2 MC74VHCT245ADTRG MC74VHCT245AMEL MC74VHCT245AMELG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *This package is inherently Pb−Free 1.5V t PLH ...

Page 5

... MC74VHCT245A DIR 19 OE Figure 7. Expanded Logic Diagram http://onsemi.com ...

Page 6

... PIN 1 IDENT 1 0.15 (0.006 −V− 0.100 (0.004) −T− SEATING PLANE MC74VHCT245A PACKAGE DIMENSIONS SOIC− SUFFIX CASE 751D−05 ISSUE G q SEATING PLANE C T TSSOP−20 D5 SUFFIX CASE 948E−02 ISSUE ...

Page 7

... BSC H 7.40 8.20 0.291 0.323 E L 0.50 0.85 0.020 0.033 L 1.10 1.50 0.043 0.059 0.70 0.90 0.028 0.035 1 Z −−− 0.81 −−− 0.032 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. MC74VHCT245A/D ...

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