NSC 5962-9322701QSA, 5962-9322701QRA, 5962-9322701Q2A Datasheet
54ABT241
Octal Buffer/Line Driver with TRI-STATE
®
Outputs
General Description
The ABT241 is an octal buffer and line driver with 3-STATE
outputs designed to be employed as a memory and address
driver, clock driver, or bus-oriented transmitter/receiver.
Features
n Non-inverting buffers
n Output sink capability of 48 mA, source capability of
24 mA
n Guaranteed latchup protection
n High impedance glitch free bus loading during entire
power up and power down cycle
n Nondestructive hot insertion capability
n Standard Microcircuit Drawing (SMD) 5962-9322701
Ordering Code
Military Package Number Package Description
54ABT241J-QML J20A 20-Lead Ceramic Dual-In-Line
54ABT241W-QML W20A 20-Lead Cerpack
54ABT241E-QML E20A 20-Lead Ceramic Leadless Chip Carrier, Type C
Connection Diagram
Pin Names Description
OE
1
Output Enable Input (Active Low)
OE
2
Output Enable Input (Active High)
I
0–I7
Inputs
O
0–O7
Outputs
Truth Table
OE
1
I
0–3
O
0–3
OE
2
I
4–7
O
4–7
HX ZLX Z
LH HHH H
LL LHL L
H
=
HIGH Voltage Level
L=LOW Voltage Level
X=Immaterial
Z=High Impedance
TRI-STATE®is a registered trademark of National Semiconductor Corporation.
Pin Assignment for
DIP and Cerpack
DS100215-1
Pin Assignment for LCC
DS100215-4
July 1998
54ABT241 Octal Buffer/Line Driver with TRI-STATE Outputs
54ABT241
© 1998 National Semiconductor Corporation DS100215 www.national.com
1
PrintDate=1998/07/13 PrintTime=19:04:09 43584 ds100215 Rev. No. 1 cmserv
Proof 1
Absolute Maximum Ratings (Note 1)
Storage Temperature −65˚C to +150˚C
Ambient Temperature under Bias −55˚C to +125˚C
Junction Temperature under Bias
Ceramic −55˚C to +175˚C
V
CC
Pin Potential to
Ground Pin −0.5V to +7.0V
Input Voltage (Note 2) −0.5V to +7.0V
Input Current (Note 2) −30 mA to +5.0 mA
Voltage Applied to Any Output
in the Disabled or
Power-Off State −0.5V to 5.5V
in the HIGH State −0.5V to V
CC
Current Applied to Output
in LOW State (Max) twice the rated I
OL
(mA)
DC Latchup Source Current
(Over Comm Operating Range) −500 mA
Over Voltage Latchup (I/O) 10V
Recommended Operating
Conditions
Free Air Ambient Temperature
Military −55˚C to +125˚C
Supply Voltage
Military +4.5V to +5.5V
Minimum Input Edge Rate (∆V/∆t)
Data Input 50 mV/ns
Enable Input 20 mV/ns
Note 1: Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired. Functional operation under these
conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol Parameter Min Typ Max Units V
CC
Conditions
V
IH
Input HIGH Voltage 2.0 V Recognized HIGH Signal
V
IL
Input LOW Voltage 0.8 V Recognized LOW Signal
V
CD
Input Clamp Diode Voltage −1.2 V Min I
IN
=
−18 mA
V
OH
Output HIGH Voltage 54ABT 2.5 V Min I
OH
=
−3 mA
54ABT 2.0 V Min I
OH
=
−24 mA
V
OL
Output LOW Voltage 54ABT 0.55 V Min I
OL
=
48 mA
I
IH
Input HIGH Current 5 µA Max V
IN
=
2.7V (Note 4)
5V
IN
=
V
CC
I
BVI
Input HIGH Current Breakdown Test 7 µA Max V
IN
=
7.0V
I
IL
Input LOW Current −5 µA Max V
IN
=
0.5V (Note 4)
−5 V
IN
=
0.0V
V
ID
Input Leakage Test 4.75 V 0.0 I
ID
=
1.9 µA
All Other Pins Grounded
I
OZH
Output Leakage Current 50 µA 0 − 5.5V V
OUT
=
2.7V; OE
n
=
2.0V
I
OZL
Output Leakage Current −50 µA 0 − 5.5V V
OUT
=
0.5V; OE
n
=
2.0V
I
OS
Output Short-Circuit Current −100 −275 mA Max V
OUT
=
0.0V
I
CEX
Output High Leakage Current 50 µA Max V
OUT
=
V
CC
I
ZZ
Bus Drainage Test 100 µA 0.0 V
OUT
=
5.5V; All Others GND
I
CCH
Power Supply Current 50 µA Max All Outputs HIGH
I
CCL
Power Supply Current 30 mA Max All Outputs LOW
I
CCZ
Power Supply Current 50 µA Max OE
n
=
V
CC
;
All Others at VCCor Ground
I
CCT
Additional ICC/Input Outputs Enabled 2.5 mA Max V
I
=
V
CC
− 2.1V
Outputs 3-STATE 2.5 mA Enable Input V
I
=
V
CC
− 2.1V
Outputs 3-STATE 50 µA Data Input V
I
=
V
CC
− 2.1V
All Others at V
CC
or Ground
I
CCD
Dynamic I
CC
No Load mA/ Max Outputs Open
(Note 4) 0.1 MHz OE
n
=
GND, (Note 3)
One Bit Toggling, 50
%
Duty Cycle
Note 3: For 8 bits toggling, I
CCD
<
0.8 mA/MHz.
Note 4: Guaranteed, but not tested.
PrintDate=1998/07/13 PrintTime=19:04:09 43584 ds100215 Rev. No. 1 cmserv Proof 2
www.national.com 2
Loading...