OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

74ACQ241SC

P1-P3P4-P6
© 2001 Fairchild Semiconductor Corporation DS010642 www.fairchildsemi.com
January 1990
Revised August 2001
74ACQ241 Octal Buffer/Line Driver with 3-STATE Outputs
74ACQ241
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The ACQ241 is an octal buffer and line driver designed to
be employed as a memory address driver, clock driver and
bus oriented transmitter or receiver which provides
improved PC board density. The ACQ utilizes Fairchild
FACT Quiet Series
technology to guarantee quiet output
switching and improved dynamic threshold performance.
FACT Quiet Series features GTO
output control and
undershoot corrector in addition to a split ground bus for
superior performance.
Features
■ I
CC
and I
OZ
reduced by 50%
■ Guaranteed simultaneous switching noise level and
dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Improved latch-up immunity
■ 3-STATE outputs drive bus lines or buffer memory
address registers
■ Outputs source/sink 24 mA
■ Faster prop delays than the standard AC
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
IEEE/IEC
Connection Diagram
Pin Descriptions
Truth Tables
H = HIGH Voltage Level X = Immaterial
L = LOW Voltage Level Z = High Impedance
FACT, FACT Quiet Series, and GTO are trademarks of Fairchild Semiconductor Corporation.
Order Number Package Number Package Description
74ACQ241SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ACQ241PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Pin Names Description
OE
1
, OE
2
3-STATE Output Enable Inputs
I
0
–I
7
Inputs
O
0
–O
7
Outputs
Inputs Outputs
OE
1
I
n
(Pins 12, 14, 16, 18)
LL L
LH H
HX Z
Inputs Outputs
OE
2
I
n
(Pins 3, 5, 7, 9)
HL L
HH H
HX Z
www.fairchildsemi.com 2
74ACQ241
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACT circuits outside databook specifications.
DC Electrical Characteristics
Supply Voltage (V
CC
) −0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
= −0.5V −20 mA
V
I
= V
CC
+ 0.5V +20 mA
DC Input Voltage (V
I
) −0.5V to V
CC
+ 0.5V
DC Output Diode Current (I
OK
)
V
O
= −0.5V −20 mA
V
O
= V
CC
+ 0.5V +20 mA
DC Output Voltage (V
O
) −0.5V to V
CC
+ 0.5V
DC Output Source
or Sink Current (I
O
) ± 50 mA
DC V
CC
or Ground Current
per Output Pin (I
CC
or I
GND
) ± 50 mA
Storage Temperature (T
STG
) −65°C to +150°C
DC Latch-Up Source or
Sink Current ±300 mA
Junction Temperature (T
J
)
PDIP 140
°C
Supply Voltage (V
CC
) 2.0V to 6.0V
Input Voltage (V
I
) 0V to V
CC
Output Voltage (V
O
) 0V to V
CC
Operating Temperature (T
A
) −40°C to +85°C
Minimum Input Edge Rate
∆V/∆t 125 mV/ns
V
IN
from 30% to 70% of V
CC
V
CC
@ 3.0V, 4.5V, 5.5V
Symbol Parameter
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Units Conditions
(V) Typ Guaranteed Limits
V
IH
Minimum High Level 3.0 1.5 2.1 2.1
V
V
OUT
= 0.1V
Input Voltage 4.5 2.25 3.15 3.15 or V
CC
− 0.1V
5.5 2.75 3.85 3.85
V
IL
Maximum Low Level 3.0 1.5 0.9 0.9
V
V
OUT
= 0.1V
Input Voltage 4.5 2.25 1.35 1.35 or V
CC
− 0.1V
5.5 2.75 1.65 1.65
V
OH
Minimum High Level 3.0 2.99 2.9 2.9
VOutput Voltage 4.5 4.49 4.4 4.4 I
OUT
= −50 µA
5.5 5.49 5.4 5.4
V
V
IN
= V
IL
or V
IH
3.0 2.56 2.46 I
OH
= −12 mA
4.5 3.86 3.76 I
OH
= −24 mA
5.5 4.86 4.76 I
OH
= −24 mA (Note 2)
V
OL
Maximum Low Level 3.0 0.002 0.1 0.1
VOutput Voltage 4.5 0.001 0.1 0.1 I
OUT
= 50 µA
5.5 0.001 0.1 0.1
V
V
IN
= V
IL
or V
IH
3.0 0.36 0.44 I
OL
= 12 mA
4.5 0.36 0.44 I
OL
= 24 mA
5.5 0.36 0.44 I
OL
= 24 mA (Note 2)
I
IN
Maximum Input
5.5 ± 0.1 ± 1.0 µA
V
I
= V
CC
,
(Note 4) Leakage Current GND
I
OLD
Minimum Dynamic 5.5 75 mA V
OLD
= 1.65V Max
I
OHD
Output Current (Note 3) 5.5 −75 mA V
OHD
= 3.85V Min
I
CC
Maximum Quiescent
5.5 4.0 40.0 µA
V
IN
= V
CC
(Note 4) Supply Current or GND
I
OZ
Maximum 3-STATE
5.5 ± 0.25 ± 2.5 µA
V
I
(OE) = V
IL
, V
IH
Leakage Current V
I
= V
CC
, GND
V
O
= V
CC
, GND
V
OLP
Quiet Output
5.0 1.1 1.5 V
Figures 1, 2
Maximum Dynamic V
OL
(Note 5)(Note 6)
3 www.fairchildsemi.com
74ACQ241
DC Electrical Characteristics (Continued)
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: I
IN
and I
CC
@ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V V
CC
.
Note 5: DIP package.
Note 6: Max number of outputs defined as (n). Data Inputs are driven 0V to 5V. One output @ GND.
Note 7: Max number of Data Inputs (n) switching. n−1 Inputs switching 0V to 5V. Input-under-test switching: 5V to threshold (V
ILD
), 0V to threshold (V
IHD
),
f = 1 MHz.
AC Electrical Characteristics
Note 8: Voltage Range 5.0 is 5.0V ± 0.5V. Voltage Range 3.3 is 3.3V ± 0.3V.
Note 9: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
). Parameter guaranteed by design.
Capacitance
Symbol Parameter
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Units Conditions
(V) Typ Guaranteed Limits
V
OLV
Quiet Output
5.0 −0.6 −1.2 V
Figures 1, 2
Minimum Dynamic V
OL
(Note 5)(Note 6)
V
IHD
Minimum High Level
5.0 3.1 3.5 V (Note 5)(Note 7)
Dynamic Input Voltage
V
ILD
Maximum Low Level
5.0 1.9 1.5 V (Note 5)(Note 7)
Dynamic Input Voltage
Symbol Parameter
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Units
(V)
C
L
= 50 pF C
L
= 50 pF
(Note 8) Min Typ Max Min Max
t
PHL
Propagation Delay 3.3 2.0 6.5 9.0 2.0 9.5
ns
t
PLH
Data to Output 5.0 1.5 4.5 6.0 1.5 6.5
t
PZL
Output Enable Time 3.3 2.5 8.0 13.0 2.5 13.5
ns
t
PZH
5.0 1.5 5.5 8.5 1.5 9.0
t
PHZ
Output Disable Time 3.3 1.0 8.5 14.5 1.0 15.0
ns
t
PLZ
5.0 1.0 5.5 9.5 1.0 10.0
t
OSHL
Output to Output
3.3 1.0 1.5 1.5 ns
t
OSLH
Skew Data to Output (Note 9)
Symbol Parameter Typ Units Conditions
C
IN
Input Capacitance 4.5 pF V
CC
= OPEN
C
PD
Power Dissipation Capacitance 70 pF V
CC
= 5.0V
P1-P3P4-P6

74ACQ241SC

Mfr. #:
Buy 74ACQ241SC
Manufacturer:
ON Semiconductor / Fairchild
Description:
Buffers & Line Drivers Octal Buf/Line Drv
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet