MC74HC238A(2009) Просмотр технического описания (PDF) - ON Semiconductor
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MC74HC238A Datasheet PDF : 8 Pages
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MC74HC238A
1-of-8 Decoder/
Demultiplexer
High−Performance Silicon−Gate CMOS
The MC74HC238A is identical in pinout to the LS238. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
The HC238A decodes a three−bit Address to one−of−eight
active−high outputs. This device features three Chip Select inputs, two
active−low and one active−high to facilitate the demultiplexing,
cascading, and chip−selecting functions. The demultiplexing function
is accomplished by using the Address inputs to select the desired
device output; one of the Chip Selects is used as a data input while the
other Chip Selects are held in their active states.
Features
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 mA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC
Standard No. 7A
• Chip Complexity: 100 FETs or 29 Equivalent Gates
• These are Pb−Free Devices*
16
1
http://onsemi.com
MARKING
DIAGRAMS
16
PDIP−16
N SUFFIX
CASE 648
MC74HC238AN
AWLYYWWG
1
16
1
16
SOIC−16
D SUFFIX
CASE 751B
HC238AG
AWLYWW
1
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
HC
238A
ALYWG
G
1
A
WL, L
YY, Y
WW, W
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
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 Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2009
1
December, 2009 − Rev. 0
Publication Order Number:
MC74HC238A/D
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