TI SNJ54LS240J

SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
D
D
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
PNP Inputs Reduce DC Loading
Hysteresis at Inputs Improves Noise
Margins
SN54LS’, SN54S’ . . . J OR W PACKAGE
SN74LS240, SN74LS244 . . . DB, DW, N, OR NS PACKAGE
SN74LS241 . . . DW, N, OR NS PACKAGE
SN74S’ . . . DW OR N PACKAGE
(TOP VIEW)
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
description
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
2G/2G†
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
† 2G for ’LS241 and ’S241 or 2G for all other drivers.
†
SN54LS’, SN54S’ . . . FK PACKAGE
(TOP VIEW)
2Y4
1A1
1G
VCC
These octal buffers and line drivers are designed
specifically to improve both the performance and
density of three-state memory address drivers,
clock drivers, and bus-oriented receivers and
transmitters. The designer has a choice of
selected combinations of inverting and
noninverting outputs, symmetrical, active-low
output-control (G) inputs, and complementary
output-control (G and G) inputs. These devices
feature high fan-out, improved fan-in, and 400-mV
noise margin. The SN74LS’ and SN74S’ devices
can be used to drive terminated lines down to
133 Ω.
1
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
1A2
2Y3
1A3
2Y2
1A4
2G/2G
D
† 2G for ’LS241 and ’S241 or 2G for all other drivers.
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
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
ORDERING INFORMATION
PACKAGE†
TA
PDIP – N
0°C to 70°C
SOIC – DW
SOP – NS
SSOP – DB
Tube
ORDERABLE
PART NUMBER
SN74LS240N
SN74LS240N
SN74LS241N
SN74LS241N
SN74LS244N
SN74LS244N
SN74S240N
SN74S240N
SN74S241N
SN74S241N
SN74S244N
SN74S244N
Tube
SN74LS240DW
Tape and reel
SN74LS240DWR
Tube
SN74LS241DW
Tape and reel
SN74LS241DWR
Tube
SN74LS244DW
Tape and reel
SN74LS244DWR
Tube
SN74S240DW
Tape and reel
SN74S240DWR
Tube
SN74S241DW
Tape and reel
SN74S241DWR
Tube
SN74S244DW
Tape and reel
SN74S244DWR
Tube
Tape and reel
TOP-SIDE
MARKING
LS240
LS241
LS244
S240
S241
S244
SN74LS240NSR
74LS240
SN74LS241NSR
74LS241
SN74LS244NSR
74LS244
SN74LS240DBR
LS240
LS244
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
2
POST OFFICE BOX 655303
SN74LS244DBR
• DALLAS, TEXAS 75265
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
ORDERING INFORMATION (CONTINUED)
PACKAGE†
TA
CDIP – J
Tube
–55°C
55°C to 125°C
CFP – W
LCCC – FK
Tube
Tube
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SN54LS240J
SN54LS240J
SNJ54LS240J
SNJ54LS240J
SN54LS241J
SN54LS241J
SNJ54LS241J
SNJ54LS241J
SN54LS244J
SN54LS244J
SNJ54LS244J
SNJ54LS244J
SN54S240J
SN54S240J
SNJ54S240J
SNJ54S240J
SN54S241J
SN54S241J
SNJ54S241J
SNJ54S241J
SN54S244J
SN54S244J
SNJ54S244J
SNJ54S244J
SNJ54LS240W
SNJ54LS240W
SNJ54LS241W
SNJ54LS241W
SNJ54LS244W
SNJ54LS244W
SNJ54S240W
SNJ54S240W
SNJ54S241W
SNJ54S241W
SNJ54S244W
SNJ54S244W
SNJ54LS240FK
SNJ54LS240FK
SNJ54LS241FK
SNJ54LS241FK
SNJ54LS244FK
SNJ54LS244FK
SNJ54S240FK
SNJ54S240FK
SNJ54S241FK
SNJ54S241FK
SNJ54S244FK
SNJ54S244FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
schematics of inputs and outputs
’LS240, ’LS241, ’LS244
’S240, ’S241, ’S244
EQUIVALENT OF EACH INPUT
EQUIVALENT OF EACH INPUT
VCC
VCC
Req
9 kΩ NOM
Input
Input
G and G inputs: Req = 2 kΩ NOM
A inputs: Req = 2.8 kΩ NOM
TYPICAL OF ALL OUTPUTS
VCC
R
Output
GND
’LS240. ’LS241, ’LS244: R = 50 Ω NOM
’S240, ‘S241, S244: R = 25 Ω NOM
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
logic diagram
’LS240, ’S240
1G
1A1
1A2
1A3
1A4
2G
2A1
2A2
2A3
2A4
’LS241, ’S241
1
1G
2
18
1Y1
1A1
4
16
1Y2
1A2
6
14
1Y3
1A3
8
12
1Y4
1A4
19
2G
11
9
13
7
15
5
17
3
2Y1
2A1
2Y2
2A2
2Y3
2A3
2Y4
2A4
1
2
18
4
16
6
14
8
12
1Y1
1Y2
1Y3
1Y4
19
11
9
13
7
15
5
17
3
2Y1
2Y2
2Y3
2Y4
’LS244, ’S244
1G
1A1
1A2
1A3
1A4
2G
2A1
2A2
2A3
2A4
1
2
18
4
16
6
14
8
12
1Y1
1Y2
1Y3
1Y4
19
11
9
13
7
15
5
17
3
2Y1
2Y2
2Y3
2Y4
Pin numbers shown are for DB, DW, J, N, NS, and W packages.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage, VI: ’LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
’S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Off-state output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
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
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. Voltage values are with respect to network ground terminal.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
SN54LS’
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.75
5
5.25
UNIT
VCC
VIH
Supply voltage (see Note 1)
VIL
IOH
Low-level input voltage
0.7
0.8
V
High-level output current
–12
–15
mA
IOL
TA
Low-level output current
12
24
mA
70
°C
High-level input voltage
2
Operating free-air temperature
–55
NOTE 1: Voltage values are with respect to network ground terminal.
6
SN74LS’
MIN
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
2
125
0
V
V
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
TEST CONDITIONS†
PARAMETER
VIK
Hysteresis
(VT+ – VT–)
VCC = MIN,
MIN
SN54LS’
TYP‡
MAX
II = –18 mA
MIN
SN74LS’
TYP‡
MAX
–1.5
VCC = MIN
–1.5
0.2
0.4
0.2
0.4
3.4
2.4
3.4
UNIT
V
V
VCC = MIN,
IOH = –3 mA
VIH = 2 V,
VIL = MAX,
2.4
VCC = MIN,
IOH = MAX
VIH = 2 V,
VIL = 0.5 V,
2
VOL
VCC = MIN,,
VIL = MAX
VIH = 2 V,,
IOL = 12 mA
IOL = 24 mA
0.4
IOZH
VCC = MAX,
VIL = MAX
VIH = 2 V,
VO = 2.7 V
20
20
µA
IOZL
VCC = MAX,
VIL = MAX
VIH = 2 V,
VO = 0.4 V
–20
–20
µA
II
IIH
VCC = MAX,
VCC = MAX,
VI = 7 V
VI = 2.7 V
0.1
0.1
mA
20
20
µA
IIL
IOS§
VCC = MAX,
VCC = MAX,
VIL = 0.4 V
–0.2
mA
–225
mA
VOH
V
2
0.5
–0.2
–40
Outputs high
0.4
–225
–40
All
17
27
17
27
’LS240
26
44
26
44
’LS241, ’LS244
27
46
27
46
’LS240
29
50
29
50
’LS241, ’LS244
32
54
32
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ Not more than one output should be shorted at a time, and duration of the short-circuit should not exceed one second.
54
VCC = MAX,
MAX
Out
ut open
o en
Output
ICC
Outputs low
Outputs
Out
uts disabled
V
mA
switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1)
PARAMETER
’LS240
TEST CONDITIONS
MIN
tPLH
tPHL
RL = 667 Ω
Ω,
CL = 45 pF
tPZL
tPZH
RL = 667 Ω
Ω,
CL = 45 pF
F
tPLZ
tPHZ
Ω
RL = 667 Ω,
CL = 5 pF
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
’LS241, ’LS244
TYP
MAX
9
MIN
TYP
MAX
14
12
18
12
18
12
18
20
30
20
30
15
23
15
23
10
20
10
20
15
25
15
25
UNIT
ns
ns
ns
7
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
recommended operating conditions
SN54S’
SN74S’
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.75
5
5.25
UNIT
VCC
VIH
Supply voltage (see Note 1)
VIL
IOH
Low-level input voltage
0.8
0.8
V
High-level output current
–12
–15
mA
IOL
Low-level output current
48
64
mA
High-level input voltage
2
2
V
V
External resistance between any input and VCC or ground
40
40
kΩ
TA
Operating free-air temperature (see Note 3)
–55
125
0
70
°C
NOTES: 1. Voltage values are with respect to network ground terminal.
3. An SN54S241J operating at free-air temperature above 116°C requires a heat sink that provides a thermal resistance from case
to free air, RθCA, of not more that 40°C/W.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
VIK
Hysteresis
(VT+ – VT–)
SN54S’
MIN TYP‡
TEST CONDITIONS†
PARAMETER
VCC = MIN,
II = –18 mA
MAX
SN74S’
MIN TYP‡
–1.2
VCC = MIN
0.2
0.4
MAX
–1.2
0.2
V
0.4
V
3.4
V
VCC = MIN
IOH = –1 mA
VIH = 2 V,
VIL = 0.8 V,
VCC = MIN,
IOH = –3 mA
VIH = 2 V,
VIL = 0.8 V,
2.4
VCC = MIN,
IOH = MAX
VIH = 2 V,
VIL = 0.5 V,
2
VOL
VCC = MIN,
IOL = MAX
VIH = 2 V,
VIL = 0.8 V,
0.55
0.55
V
IOZH
VCC = MAX,
VIL = 0.8 V
VIH = 2 V,
VO = 2.4 V
50
50
µA
IOZL
VCC = MAX,
VIL = 0.8 V
VIH = 2 V,
VO = 0.5 V
–50
–50
µA
II
IIH
VCC = MAX,
VCC = MAX,
VI = 5.5 V
VI = 2.7 V
VOH
IIL
VCC = MAX
MAX,
IOS§
VCC = MAX
5V
VI = 0
0.5
2.7
3.4
2.4
2
Any A
Any G
1
1
mA
50
50
µA
–400
–400
µA
–2
mA
–225
mA
–2
–50
–225
–50
’S240
80
123
80
135
’S241,’S244
95
147
95
160
’S240
100
145
100
150
’S241, ’S244
120
170
120
180
’S240
100
145
100
150
’S241, ’S244
120
170
120
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ Not more than one output should be shorted at a time, and duration of the short-circuit should not exceed one second.
180
Outputs high
ICC
VCC = MAX,,
Output open
Outputs low
Outputs
Out
uts disabled
8
UNIT
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
mA
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
switching characteristics, VCC = 5 V, TA = 25°C (see Figure 2)
PARAMETER
’S240
TEST CONDITIONS
MIN
tPLH
tPHL
RL = 90 Ω
Ω,
CL = 50 pF
F
tPZL
tPZH
RL = 90 Ω
Ω,
CL = 50 pF
F
tPLZ
tPHZ
RL = 90 Ω
Ω,
CL = 5 pF
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
’S241, ’S244
TYP
MAX
4.5
4.5
MIN
TYP
MAX
7
6
9
7
6
9
10
15
10
15
6.5
10
8
12
10
15
10
15
6
9
6
9
UNIT
ns
ns
ns
9
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
PARAMETER MEASUREMENT INFORMATION
SERIES 54LS/74LS DEVICES
VCC
Test
Point
VCC
RL
From Output
Under Test
CL
(see Note A)
CL
(see Note A)
High-Level
Pulse
1.3 V
S2
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
3V
Timing
Input
1.3 V
5 kΩ
Test
Point
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 2-STATE TOTEM-POLE OUTPUTS
S1
(see Note B)
CL
(see Note A)
RL
(see Note B)
RL
From Output
Under Test
VCC
From Output
Under Test
Test
Point
1.3 V
0V
tw
Low-Level
Pulse
1.3 V
tsu
Data
Input
1.3 V
VOLTAGE WAVEFORMS
PULSE DURATIONS
1.3 V
1.3 V
Output
Control
(low-level
enabling)
0V
tPLH
In-Phase
Output
(see Note D)
1.3 V
0V
3V
1.3 V
1.3 V
0V
tPZL
tPLZ
tPHL
VOH
1.3 V
1.3 V
Waveform 1
(see Notes C
and D)
VOL
tPZH
tPLH
VOH
1.3 V
1.3 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
≈1.5 V
1.3 V
VOL
tPHL
Out-of-Phase
Output
(see Note D)
3V
1.3 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3V
Input
th
Waveform 2
(see Notes C
and D)
VOL + 0.3 V
tPHZ
VOH
1.3 V
VOH – 0.3 V
≈1.5 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
NOTES: A. CL includes probe and jig capacitance.
B. All diodes are 1N3064 or equivalent.
C. 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.
D. S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open and S2 is closed for tPZH; S1 is closed and S2 is open for tPZL.
E. Phase relationships between inputs and outputs have been chosen arbitrarily for these examples.
F. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50 Ω, tr ≤ 15 ns, tf ≤ 6 ns.
G. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
10
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
PARAMETER MEASUREMENT INFORMATION
SERIES 54S/74S DEVICES
VCC
Test
Point
VCC
RL
(see Note B)
From Output
Under Test
CL
(see Note A)
High-Level
Pulse
1.5 V
S2
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
3V
Timing
Input
1.5 V
1 kΩ
Test
Point
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 2-STATE TOTEM-POLE OUTPUTS
S1
(see Note B)
CL
(see Note A)
RL
CL
(see Note A)
RL
From Output
Under Test
VCC
From Output
Under Test
Test
Point
1.5 V
0V
tw
Low-Level
Pulse
1.5 V
tsu
0V
In-Phase
Output
(see Note D)
tPHL
VOH
1.5 V
Out-of-Phase
Output
(see Note D)
1.5 V
3V
1.5 V
Waveform 1
(see Notes C
and D)
tPLZ
VOH
1.5 V
1.5 V
VOL
VOL
Waveform 2
(see Notes C
and D)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
≈1.5 V
1.5 V
tPZH
tPLH
1.5 V
0V
tPZL
VOL
tPHL
1.5 V
0V
Output
Control
(low-level
enabling)
1.5 V
tPLH
1.5 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3V
1.5 V
3V
Data
Input
1.5 V
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
th
VOL + 0.5 V
tPHZ
VOH
1.5 V
VOH – 0.5 V
≈1.5 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
NOTES: A. CL includes probe and jig capacitance.
B. All diodes are 1N3064 or equivalent.
C. 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.
D. S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open and S2 is closed for tPZH; S1 is closed and S2 is open for tPZL.
E. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50 Ω; tr and tf ≤ 7 ns for Series
54/74 devices and tr and tf ≤ 2.5 ns for Series 54S/74S devices.
F. The outputs are measured one at a time with one input transition per measurement.
Figure 2. Load Circuits and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
11
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B – APRIL 1985 – REVISED FEBRUARY 2002
APPLICATION INFORMATION
12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
28-Feb-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
5962-7801201VRA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
5962-7801201VSA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
7705701RA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
7705701SA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
78012012A
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
7801201RA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
7801201SA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32401B2A
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32401BRA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32401BSA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32402B2A
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32402BRA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32402BSA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32403B2A
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32403BRA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32403BSA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32403SRA
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
JM38510/32403SSA
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
SN54LS240J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SN54LS241J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SN54LS244J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SN54S240J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SN54S241J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SN54S244J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SN74LS240DW
ACTIVE
SOIC
DW
20
25
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74LS240DWR
ACTIVE
SOIC
DW
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
None
Call TI
20
Pb-Free
(RoHS)
CU NIPDAU
Package
Drawing
Pins Package Eco Plan (2)
Qty
SN74LS240J
OBSOLETE
CDIP
J
20
SN74LS240N
ACTIVE
PDIP
N
20
Lead/Ball Finish
MSL Peak Temp (3)
Call TI
Level-NC-NC-NC
SN74LS240N3
OBSOLETE
PDIP
N
20
None
Call TI
SN74LS240NSR
ACTIVE
SO
NS
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-260C-1 YEAR/
Level-1-235C-UNLIM
SN74LS241DW
ACTIVE
SOIC
DW
20
25
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74LS241DWR
ACTIVE
SOIC
DW
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
None
Call TI
20
Pb-Free
(RoHS)
CU NIPDAU
None
Call TI
2000
Pb-Free
(RoHS)
CU NIPDAU
SN74LS241J
OBSOLETE
CDIP
J
20
SN74LS241N
ACTIVE
PDIP
N
20
SN74LS241N3
OBSOLETE
PDIP
N
20
SN74LS241NSR
ACTIVE
SO
NS
20
Addendum-Page 1
Call TI
Call TI
Level-NC-NC-NC
Call TI
Level-2-260C-1 YEAR/
Level-1-235C-UNLIM
PACKAGE OPTION ADDENDUM
www.ti.com
28-Feb-2005
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
SN74LS244DBR
ACTIVE
SSOP
DB
20
2000
SN74LS244DW
ACTIVE
SOIC
DW
20
SN74LS244DWR
ACTIVE
SOIC
DW
20
SN74LS244J
OBSOLETE
CDIP
J
20
SN74LS244N
ACTIVE
PDIP
N
20
Lead/Ball Finish
MSL Peak Temp (3)
Pb-Free
(RoHS)
CU NIPDAU
Level-2-260C-1 YEAR/
Level-1-235C-UNLIM
25
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
None
Call TI
20
Pb-Free
(RoHS)
CU NIPDAU
Call TI
Level-NC-NC-NC
SN74LS244N3
OBSOLETE
PDIP
N
20
None
Call TI
SN74LS244NSR
ACTIVE
SO
NS
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Call TI
Level-2-260C-1 YEAR/
Level-1-235C-UNLIM
SN74S240DW
ACTIVE
SOIC
DW
20
25
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74S240DWR
ACTIVE
SOIC
DW
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74S240N
ACTIVE
PDIP
N
20
20
Pb-Free
(RoHS)
CU NIPDAU
Level-NC-NC-NC
SN74S240N3
OBSOLETE
PDIP
N
20
None
Call TI
SN74S241DW
ACTIVE
SOIC
DW
20
25
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74S241DWR
ACTIVE
SOIC
DW
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
None
Call TI
20
Pb-Free
(RoHS)
CU NIPDAU
SN74S241J
OBSOLETE
CDIP
J
20
SN74S241N
ACTIVE
PDIP
N
20
Call TI
Call TI
Level-NC-NC-NC
SN74S241N3
OBSOLETE
PDIP
N
20
None
Call TI
SN74S244DW
ACTIVE
SOIC
DW
20
25
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74S244DWR
ACTIVE
SOIC
DW
20
2000
Pb-Free
(RoHS)
CU NIPDAU
Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
None
Call TI
20
Pb-Free
(RoHS)
CU NIPDAU
SN74S244J
OBSOLETE
CDIP
J
20
SN74S244N
ACTIVE
PDIP
N
20
Call TI
Call TI
Level-NC-NC-NC
SN74S244N3
OBSOLETE
PDIP
N
20
None
Call TI
Call TI
SNJ54LS240FK
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS240J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS240W
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS241FK
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS241J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS241W
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS244FK
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS244J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SNJ54LS244W
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S240FK
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S240J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S240W
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S241FK
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
28-Feb-2005
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
Lead/Ball Finish
MSL Peak Temp (3)
SNJ54S241J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S241W
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S244FK
ACTIVE
LCCC
FK
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S244J
ACTIVE
CDIP
J
20
1
None
Call TI
Level-NC-NC-NC
SNJ54S244W
ACTIVE
CFP
W
20
1
None
Call TI
Level-NC-NC-NC
(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.
(2)
Eco Plan - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional
product content details.
None: Not yet available Lead (Pb-Free).
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens,
including bromine (Br) or antimony (Sb) above 0.1% of total product weight.
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 3
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Amplifiers
amplifier.ti.com
Audio
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
www.ti.com/broadband
Interface
interface.ti.com
Digital Control
www.ti.com/digitalcontrol
Logic
logic.ti.com
Military
www.ti.com/military
Power Mgmt
power.ti.com
Optical Networking
www.ti.com/opticalnetwork
Microcontrollers
microcontroller.ti.com
Security
www.ti.com/security
Telephony
www.ti.com/telephony
Video & Imaging
www.ti.com/video
Wireless
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright  2005, Texas Instruments Incorporated