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IDT54AHCT182 Datasheet

High Speed CMOS Carry Lookahead Generator

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FEATURES:
• Equivalent to ALS speeds and output drive over full
temperature and voltage supply extremes
• 8ns typical propagation delay
• IOl = 14mA over full military temperature range
• CMOS power levels (5JlW typo static)
• Both CMOS and TTL output compatible
• Substantially lower input current levels than ALS (5JlA max.)
• Carry lookahead generator
• 100% product assurance screening to MIL-STD-883, Class B
is available
• JEDEC standard pinout for DIP and LCC
DESCRIPTION:
The IDT54174AHCT182 is a carry lookahead generator built
using advanced CEMOS'·, a dual metal CMOS technology. The
IDT54/74AHCT182 is generally used with a 4-bit arithmetic logic
unit to provide high-speed lookahead over word lengths of more
than fou r bits.
PIN CONFIGURATIONS
G1
P1
Go
Po
G3
P3
P
GND
Vee
P2
G2
Cn
Cn+x.
Cn +y
G
Cn+z
5SDAHCT182-001
DIP
TOP VIEW
FUNCTIONAL BLOCK DIAGRAM
UC') CO')
00
III. I" Z III. I"
P
GND
NC
Cn+.
G
Ll L J L J L J L J
:9 8 7 6 5 43:
::10 2:::
::11
::12
P1
G1
NC
Vee
P2
SSDAHCT182-002
LCC
TOP VIEW
CEMOS is a trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
01986 Integrated Device Technology, Inc.
5-31
SSDAHCT182-003
JULY 1986
Printed in U.S.A.


Integrated Device Technology Electronic Components Datasheet

IDT54AHCT182 Datasheet

High Speed CMOS Carry Lookahead Generator

No Preview Available !

IDT54174AHCT182
HIGH-SPEED CMOS CARRY LOOKAHEAD GENERATOR
ABSOLUTE MAXIMUM RATING(1)
SYMBOL
RATING
COMMERCIAL MILITARY UNIT
VTERM
Terminal Voltage
with Respect
toGND
-0.5 to +7.0 -0.5 to +7.0 V
Operating
TA Temperature
o to +70 -55 to +125 ·C
TelAs
Temperature
Under Bias
-55 to +125 -65 to +135 ·C
TSTG
Storage
Temperature
-55 to +125 -65 to +155 ·C
lOUT DC Output Current
120
120 rnA
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS
may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above
those indicated in the operational sections 01 this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect reliability.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
TA = O°C to +70°C
Vee = 5.0V ± 5%
Min. = 4.75V
Max. = 5.25V (Commercial)
TA = -55°C to +125°C
Vee = 5.0V ± 10%
Min. = 4.50V
Max. = 5.50V (Military)
VLC= 0.2V
VHe = Vec - 0.2V
SYMBOL
VIH
VIL
IIH
IlL
Isc
VOH
PARAMETER
Input HIGH Level
Input LOW Level
Input HIGH Current
Input LOW Current
Short Circuit Current
Output HIGH Voltage
VOL Output LOW Voltage
TEST CONDITIONS(1)
Guaranteed Logic High Level
Guaranteed Logic Low Level
Vec =Max.• VIN =Vcc
Vee =Max., VIN =GND
=Vee Max. (3)
Vee =3V, VIN =VLe or VHe, 10H =-321'A
Vee =Min.
VIN = VIH or Vil
10H =-200I'A
10H =-12mA MIL.
10H =-15mA COM'L.
Vee =3V, VIN =VLe or VHe, 10L =300l'A
Vee =Min.
VIN =VIH or Vil
10l =3OOl'A
IOl =14mA MIL.
IOl =24mA COM'L.
MIN.
2.0
-
-
-
-60
VHe
VHe
2.4
2.4
-
-
-
-
TYP'(2)
-
-
-
-
-100
Vee
Vee
4.3
4.3
GND
GND
-
-
NOTES:
1. For conditions shown as max. or min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vee = 5.0V. +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the short circuillest should not exceed one second.
MAX.
-
0.8
5
-5
-
-
-
-
-
VLe
VLe
0.4
0.5
UNIT
V
V
I'A
I'A
rnA
V
V
5-32


Part Number IDT54AHCT182
Description High Speed CMOS Carry Lookahead Generator
Maker IDT
Total Page 4 Pages
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