SN54ACT241, SN74ACT241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS516C − JUNE 1995 − REVISED OCTOBER 2002
D 4.5-V to 5.5-V VCC Operation
D Inputs Accept Voltages to 5.5 V
D Max tpd of 8.5 ns at 5 V
D Inputs Are TTL Compatible
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
2Y4
1A1
1OE
VCC
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
1A2
2Y3
1A3
2Y2
1A4
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
1Y1
2A4
1Y2
2A3
1Y3
2Y1
GND
2A1
1Y4
2A2
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
2OE
SN54ACT241 . . . FK PACKAGE
(TOP VIEW)
SN54ACT241 . . . J OR W PACKAGE
SN74ACT241 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
description/ordering information
These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state
memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
The ’ACT241 devices are organized as two 4-bit buffers/drivers with separate complementary output-enable
(1OE and 2OE) inputs. When 1OE is low or 2OE is high, the device passes noninverted data from the A inputs
to the Y outputs. When 1OE is high or 2OE is low, the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor and OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is
determined by the current-sinking or the current-sourcing capability of the driver.
ORDERING INFORMATION
PDIP − N
−55°C to 125°C
†
TOP-SIDE
MARKING
Tube
SN74ACT241N
Tube
SN74ACT241DW
Tape and reel
SN74ACT241DWR
SOP − NS
Tape and reel
SN74ACT241NSR
ACT241
SSOP − DB
Tape and reel
SN74ACT241DBR
AD241
TSSOP − PW
Tape and reel
SN74ACT241PWR
AD241
CDIP − J
Tube
SNJ54ACT241J
SNJ54ACT241J
CFP − W
Tube
SNJ54ACT241W
SNJ54ACT241W
LCCC − FK
Tube
SNJ54ACT241FK
SNJ54ACT241FK
SOIC − DW
−40°C
40°C to 85°C
ORDERABLE
PART NUMBER
PACKAGE†
TA
SN74ACT241N
ACT241
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright © 2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN54ACT241, SN74ACT241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS516C − JUNE 1995 − REVISED OCTOBER 2002
FUNCTION TABLES
INPUTS
1OE
1A
OUTPUT
1Y
L
H
H
L
L
L
H
X
Z
INPUTS
2OE
2A
OUTPUT
2Y
H
H
H
H
L
L
L
X
Z
logic diagram (positive logic)
1OE
1A1
1A2
1A3
1A4
1
2OE
2
18
4
16
6
14
8
12
1Y1
2A1
1Y2
2A2
1Y3
2A3
1Y4
2A4
19
11
9
13
7
15
5
17
3
2Y1
2Y2
2Y3
2Y4
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA
Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN54ACT241, SN74ACT241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS516C − JUNE 1995 − REVISED OCTOBER 2002
recommended operating conditions (see Note 3)
SN54ACT241
SN74ACT241
MIN
MAX
MIN
MAX
4.5
5.5
4.5
5.5
UNIT
VCC
Supply voltage
VIH
High-level input voltage
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
IOH
High-level output current
−24
−24
mA
IOL
Low-level output current
24
24
mA
Δt/Δv
Input transition rise or fall rate
8
ns/V
TA
Operating free-air temperature
85
°C
2
2
0.8
8
−55
125
−40
V
V
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ACT241
4.5 V
4.4
4.49
4.4
5.5 V
5.4
5.49
5.4
5.4
4.5 V
3.86
3.7
3.76
IOH = −24
24 mA
A
5.5 V
4.86
4.7
4.76
IOH = −50 mA†
5.5 V
IOH = −75 mA†
5.5 V
IOL = 24 mA
VI = VCC or GND
ICC
VI = VCC or GND,
ΔICC‡
One input at 3.4 V,
Other inputs at GND or VCC
Ci
Co
IO = 0
MAX
UNIT
4.4
V
3.85
3.85
0.1
0.1
0.001
0.1
0.1
0.1
4.5 V
0.36
0.5
0.44
5.5 V
0.36
0.5
0.44
5.5 V
II
MIN
0.001
5.5 V
VO = VCC or GND
MAX
5.5 V
mA†
IOL = 75
MIN
4.5 V
IOL = 50 mA†
IOZ
MAX
SN74ACT241
TYP
A
IOL = 50 μA
VOL
TA = 25°C
MIN
IOH = −50
50 μA
A
VOH
VCC
0.1
V
1.65
1.65
5.5 V
±0.25
±5
±2.5
μA
5.5 V
±0.1
5.5 V
4
±1
±1
μA
80
40
μA
1.6
1.5
mA
5.5 V
0.6
VI = VCC or GND
5V
2.5
pF
VI = VCC or GND
5V
8
pF
†
Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.
‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or V .
CC
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN54ACT241, SN74ACT241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS516C − JUNE 1995 − REVISED OCTOBER 2002
switching characteristics over recommended operating
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
Y
OE or OE
Y
OE or OE
Y
free-air
TA = 25°C
MIN
temperature
SN54ACT241
range,
SN74ACT241
TYP
MAX
MIN
MAX
MIN
MAX
1.5
6
8.5
1
9.5
1.5
9.5
1.5
5.5
7.5
1
9
1.5
8.5
1.5
7
8.5
1
10
1
9.5
2
7
9.5
1
11.5
1.5
10.5
2
8
9.5
1
11
2
10.5
2.5
6.5
10
1
11.5
2
10.5
UNIT
ns
ns
ns
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
Cpd
TEST CONDITIONS
Power dissipation capacitance per buffer/driver
CL = 50 pF,
TYP
f = 1 MHz
UNIT
45
pF
PARAMETER MEASUREMENT INFORMATION
2 × VCC
S1
500 Ω
From Output
Under Test
CL = 50 pF
(see Note A)
Open
500 Ω
LOAD CIRCUIT
Output
Control
(low-level
enabling)
3V
Input
1.5 V
1.5 V
0V
tPLH
tPHL
50% VCC
S1
Open
2 × VCC
Open
3V
1.5 V
50% VCC
VOL
1.5 V
0V
tPZL
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
tPLZ
≈VCC
50% VCC
tPZH
VOH
Output
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
VOL
tPHZ
Output
Waveform 2
S1 at Open
(see Note B)
VOLTAGE WAVEFORMS
VOL + 0.3 V
50% VCC
VOH − 0.3 V
VOH
≈0 V
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
17-Dec-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
5962-89847012A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
596289847012A
SNJ54ACT
241FK
5962-8984701RA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8984701RA
SNJ54ACT241J
Samples
5962-8984701SA
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8984701SA
SNJ54ACT241W
Samples
SN74ACT241DBR
ACTIVE
SSOP
DB
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AD241
Samples
SN74ACT241DW
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ACT241
Samples
SN74ACT241DWR
ACTIVE
SOIC
DW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ACT241
Samples
SN74ACT241N
ACTIVE
PDIP
N
20
20
RoHS &
Non-Green
NIPDAU
N / A for Pkg Type
-40 to 85
SN74ACT241N
Samples
SN74ACT241NSR
ACTIVE
SO
NS
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ACT241
Samples
SN74ACT241PW
ACTIVE
TSSOP
PW
20
70
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AD241
Samples
SN74ACT241PWR
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AD241
Samples
SNJ54ACT241FK
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
596289847012A
SNJ54ACT
241FK
SNJ54ACT241J
ACTIVE
CDIP
J
20
1
Non-RoHS &
Non-Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8984701RA
SNJ54ACT241J
Samples
SNJ54ACT241W
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8984701SA
SNJ54ACT241W
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Addendum-Page 1
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
17-Dec-2022
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of