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IDT74AHCT245 Datasheet

High Speed CMOS Non-Inverting Buffer Transceiver

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FEATURES:
• Equivalent to ALS speeds and output drive over full
temperature and voltage supply extremes
• 8ns typical data to output
• IOL = 14mA over full military temperature range
• CMOS power levels (5pW typo static)
• 80th CMOS and TTL output compatible
• Substantially lower input current levels than ALS (5pA'max.)
• Non-inverting, buffer transceiver
• 100% product assurance screening to MIL-STD-883, Class 8
is available
• JEDEC standard pinout for DIP and LCC
DESCRIPTION:
The IDT54174AHCT245 are 8-bit non-inverting, bidirectional
buffers built using advanced CEMOS'·, a dual metal CMOS
technology. This bidirectional buffer has 3-state outputs and is
intended for bus-oriented applications. The Transmit/Receive
(T/R) input determines the direction of data flow through the
bidirectional transceiver. Transmit (active HIGH) enables data
from A ports to 8 ports. Receive (active LOW) enables data from
8 ports to A ports. The Output Enable input, when HIGH,
disables both A and 8 ports by placing them in High Z condition .
PIN CONFIGURATIONS
TiR Vee
OE
...·0,,,
...45,
GND
SSDS4/74AHCT24S-001
DIP
TOP VIEW
As A5 A4 A3 A2
LJ lJ LJ LJ L.J
..,,A, :9 8 7 6 5 43::: A,
GND :10
2::: Ao
:11 1::::: T/R
.5 :12 20::::: Vee
::1~4
15
16
19:
17 18
OE
" rl r1 n r1
8 4 B3 82 B1 Bo
SSD54/74AHCT245-002
LCC
TOP VIEW
FUNCTIONAL BLOCK DIAGRAM
T/R -'(.::.')~r-...
L----+-r-----+~-OE
(2)
Ao
.,(3)
A,
·0
.,(4)
A,
.,(5)
A,
(6)
A4
A~, (7)
.4
.,A, (8)
·5
.,A, (9)
SSD54174AHCT24S-003
CEMOS is a trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
@ 1986 Integrated Device Technology, Inc.
5-50
JULY 1986
Printed in U.S.A.


Integrated Device Technology Electronic Components Datasheet

IDT74AHCT245 Datasheet

High Speed CMOS Non-Inverting Buffer Transceiver

No Preview Available !

IDT54/74AHCT245 HIGH-SPEED CMOS NON-INVERTING BUFFER TRANSCEIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATING(1)
SYMBOL
RATING
COMMERCIAL MILITARY UNIT
VTEAM
Terminal Voltage
with Respect
toGND
-0.5 to +7.0 -0.5 to +7.0 V
TA
Operating
Temperature
oto +70
-55 to +125 °C
TBIAS
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 mA
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 of this specification Is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect reliability.
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
TA =-55°C to +125°C
Vee =5.0V ± 10%
Min. =4.50V
Max. = 5.25V (Commercial)
Max. = 5.50V (Military)
VLe = 0.2V
VHe = Vee - 0.2V
SYMBOL
V,H
V,L
I'H
PARAMETER
Input HIGH Level
Input LOW Level
Input HIGH Current
(Except I/O Pins)
TEST CONDITIONSI')
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
Vec = Max., V,N = Vee
MIN.
2.0
-
TYp'I')
-
-
--
I,L
Input LOW Current
(Except I/O Pins)
Vee = Max., V,N = GND
--
Ise Short Circuit Current
VOH
Output HIGH Voltage
PortA and B
VOL
Output LOW Voltage
Port A and B
Vee = Max. (3)
-60 -100
Vee = 3V, V,N = VLe or VHe, 10H = -32,..A
VHe Vee
10H =-150,..A
VHe Vee
Vee = Min.
V,N = V,H or V,L
10H =-12mA MIL
10H =-15mA COM
2.4
2.4
4.3
4.3
-Vee = 3V, V,N = VLe or VHe , 10L = 300,..A
GND
10L = 300,..A
- GND
Vee = Min.
=V,N V,H or V,L
10L =14mA MIL
10L = 24mA COM
-
-
-
-
NOTES:
1. For conditions shown as max. or min., use appropriate value specified under Electrical Characteristics.
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 circuit test should not exceed one second.
MAX.
-
0.8
5
-5
-
-
-
-
-
VLe
VLe
0.4
0.5
UNIT
V
V
,..A
,..A
mA
V
V
II
5-51


Part Number IDT74AHCT245
Description High Speed CMOS Non-Inverting Buffer Transceiver
Maker IDT
Total Page 3 Pages
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