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  ON Semiconductor Electronic Components Datasheet  

SN74LS298 Datasheet

LOW POWER SCHOTTKY

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SN74LS298
Quad 2-Input Multiplexer
with Storage
The SN74LS298 is a Quad 2-Port Register. It is the logical
equivalent of a quad 2-input multiplexer followed by a quad 4-bit
edge-triggered register. A Common Select input selects between two
4-bit input ports (data sources.) The selected data is transferred to the
output register synchronous with the HIGH to LOW transition of the
Clock input.
The LS298 is fabricated with the Schottky barrier process for high
speed and is completely compatible with all ON Semiconductor TTL
families.
Select From Two Data Sources
Fully Edge-Triggered Operation
Typical Power Dissipation of 65 mW
Input Clamp Diodes Limit High Speed Termination Effects
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC Supply Voltage
TA Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0 25 70 °C
IOH Output Current – High
IOL Output Current – Low
– 0.4
8.0
mA
mA
http://onsemi.com
LOW
POWER
SCHOTTKY
16
1
PLASTIC
N SUFFIX
CASE 648
16
1
SOIC
D SUFFIX
CASE 751B
ORDERING INFORMATION
Device
Package
Shipping
SN74LS298N 16 Pin DIP 2000 Units/Box
SN74LS298D
16 Pin
2500/Tape & Reel
© Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS298/D


  ON Semiconductor Electronic Components Datasheet  

SN74LS298 Datasheet

LOW POWER SCHOTTKY

No Preview Available !

SN74LS298
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC Qa Qb Qc Qd CP S
16 15 14 13 12 11 10
I0c
9
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
1 2 3 4 56 78
I1b I1a I0a I0b I1c I1d I0d GND
PIN NAMES
S
CP
I0a – I0d
I1a – I1d
Qa – Qd
Common Select Input
Clock (Active LOW Going Edge) Input
Data Inputs from Source 0
Data Inputs from Source 1
Register Outputs
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.
LOADING (Note a)
HIGH
LOW
0.5 U.L.
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 U.L.
LOGIC SYMBOL
3 2 4 1 9 5 76
I0a I1a I0b I1b I0c I1c I0d I1d
10 S
11 CP
Qa Qb Qc
Qd
15 14 13
VCC = PIN 16
GND = PIN 8
12
http://onsemi.com
2


Part Number SN74LS298
Description LOW POWER SCHOTTKY
Maker ON Semiconductor
Total Page 8 Pages
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