74lvt16652 National Semiconductor Corporation, 74lvt16652 Datasheet

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74lvt16652

Manufacturer Part Number
74lvt16652
Description
3.3v Abt 16-bit Transceiver/register With Tri-state Outputs
Manufacturer
National Semiconductor Corporation
Datasheet

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Part Number:
74lvt16652ADL
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MAXIM
Quantity:
1 400
C 1996 National Semiconductor Corporation
74LVT16652
3 3V ABT 16-Bit Transceiver Register
with TRI-STATE Outputs
General Description
The LVT16652 consists of sixteen bus transceiver circuits
with D-type flip-flops and control circuitry arranged for multi-
plexed transmission of data directly from the input bus or
from the internal registers Each byte has separate control
inputs which can be shorted together for full 16-bit opera-
tion Data on the A or B bus will be clocked into the registers
as the appropriate clock pin goes to HIGH logic level Out-
put Enable pins (OEAB OEBA) are provided to control the
transceiver function
The transceivers are designed for low-voltage (3 3V) V
applications but with the capability to provide a TTL inter-
face to a 5V environment The LVT16652 is fabricated with
an advanced BiCMOS technology to achieve high speed
operation similar to 5V ABT while maintaining a low power
dissipation
TRI-STATE is a registered trademark of National Semiconductor Corporation
Order Number
NS Package
Number
A
B
CPAB
SAB
OEAB
0
0
Pin Names
– A
– B
n
16
16
n
n
SBA
CPBA
OEBA
n
74LVT16652MEA
74LVT16652MEAX
TL F 12024
n
n
SSOP EIAJ
MS56A
Data Register A Inputs
TRI-STATE Outputs
Data Register B Inputs
TRI-STATE Outputs
Clock Pulse Inputs
Select Inputs
Output Enable Inputs
Description
CC
74LVT16652MTD
74LVT16652MTDX
TSSOP JEDEC
MTD56
Features
Y
Y
Y
Y
Y
Y
Y
Y
Input and output interface capability to systems at 5V
V
Bus-Hold data inputs eliminate the need for external
pull-up resistors to hold unused inputs
Live insertion extraction permitted
Power Up Down high impedance provides glitch-free
bus loading
Outputs source sink
Available in SSOP and TSSOP
Functionally compatible with the 74 series 16652
Latch-up performance exceeds 500 mA
CC
RRD-B30M17 Printed in U S A
ADVANCE INFORMATION
Connection Diagram
b
32 mA
Pin Assignment for
SSOP and TSSOP
a
64 mA
http
October 1995
www national com
TL F 12024 – 1

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74lvt16652 Summary of contents

Page 1

... Description Data Register A Inputs TRI-STATE Outputs Data Register B Inputs TRI-STATE Outputs Clock Pulse Inputs Select Inputs Output Enable Inputs TSSOP JEDEC 74LVT16652MTD 74LVT16652MTDX MTD56 RRD-B30M17 Printed October 1995 Pin Assignment for SSOP and TSSOP TL F 12024 – 1 ...

Page 2

Logic Diagrams Please note that these diagrams are provided only for the understanding of logic operations and should not be used to estimate propagation delays http www national com 12024 – 12024 – 3 ...

Page 3

Functional Description In the transceiver mode data present at the HIGH imped- ance port may be stored in either the register or both The select (SAB SBA ) controls can multiplex stored and n n real-time The ...

Page 4

... Ordering Information The device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows Temperature Range Family 74LVT Commercial e Device Type Package Code MEA Molded Shrink Small Outline Package EIAJ e MTD Molded Thin Shrink Small Outline Package JEDEC ...

Page 5

... Physical Dimensions inches (millimeters) unless otherwise noted 56-Lead Molded Shrink Small Outline Package EIAJ Order Number 74LVT16652MEA or 74LVT16652MEAX NS Package Number MS56A 5 http www national com ...

Page 6

... Physical Dimensions millimeters (Continued) 56-Lead Molded Thin Shrink Small Outline Package JEDEC Body Width Order Number 74LVT16652MTD or 74LVT16652MTDX LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL ...

Page 7

... This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components. ...

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