Texas Instruments JM38510-31402B2A, JM38510-31402BFA, JM38510-31402BEA, SN54221J, SN54LS221J Datasheet

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SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

Dual Versions of Highly Stable SN54121 and SN74121 One Shots

SN54221 and SN74221 Demonstrate Electrical and Switching Characteristics That Are Virtually Identical to the SN54121 and SN74121 One Shots

Pinout Is Identical to the SN54123, SN74123, SN54LS123, and SN74LS123

Overriding Clear Terminates Output Pulse

Package Options Include Plastic Small-Outline (D), Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK) and Flat Packs (W), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

MAXIMUM

OUTPUT

TYPE

SN54221 21 SN74221 28 SN54LS221 49 SN74LS221 70

PULSE

LENGTH(S)

description

The ’221 and ’LS221 devices are monolithic dual multivibrators with performance characteristics virtually identical to those of the ’121 devices. Each multivibrator features a negative-transitiontriggered input and a positive-transition-triggered input, either of which can be used as an inhibit input.

SN54221, SN54LS221 ...J OR W PACKAGE

SN74221 ...N PACKAGE

SN74LS221 . . . D, DB, OR N PACKAGE

ext/Cext

SN54LS221 . . . FK PACKAGE

1A 1B

1CLR

1Q 2Q

ext

GND

(TOP VIEW)

ext/Cext

ext

1Q 2Q 2CLR 2B 2A

ext

GND

18 17 16 15 14

ext

1Q NC 2Q 2CLR

1CLR

ext

1B1ANC

3212019

4 5 6 7 8

10 11 12 13

ext ext

2R /C

NC – No internal connection

Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. Schmitt-trigger input circuitry (TTL hysteresis) for B input allows jitter-free triggering from inputs with transition rates as slow as 1 V/s, providing the circuit with excellent noise immunity, typically of 1.2 V. A high immunity to V

noise, typically of 1.5 V, is also provided by internal latching circuitry.

Once fired, the outputs are independent of further transitions of the A and B inputs and are a function of the timing components, or the output pulses can be terminated by the overriding clear. Input pulses can be of any duration relative to the output pulse. Output pulse length can be varied from 35 ns to the maximums shown in the above table by choosing appropriate timing components. With R

= 2 kΩ and C

ext

= 0, an output pulse typically of

ext

30 ns is achieved, which can be used as a dc-triggered reset signal. Output rise and fall times are TTL compatible and independent of pulse length. Typical triggering and clearing sequences are shown as a part of the switching characteristics waveforms.

Pulse-width stability is achieved through internal compensation and is virtually independent of VCC and temperature. In most applications, pulse stability is limited only by the accuracy of external timing components.

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.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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.

SN54221, SN54LS221, SN74221, SN74LS221 DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

description (continued)

Jitter-free operation is maintained over the full temperature and VCC ranges for more than six decades of timing capacitance (10 pF to 10 µF) and more than one decade of timing resistance (2 kΩ to 30 kΩ for the SN54221, 2 kΩ to 40 kΩ for the SN74221, 2 kΩ to 70 kΩ for the SN54LS221, and 2 kΩ to 100 kΩ for the SN74LS221). Throughout these ranges, pulse width is defined by the relationship: t circuits where pulse cutoff is not critical, timing capacitance up to 1000 µF and timing resistance as low as 1.4 kΩ can be used. Also, the range of jitter-free output pulse widths is extended if VCC is held to 5 V and free-air temperature is 25°C. Duty cycles as high as 90% are achieved when using maximum recommended RT. Higher duty cycles are available if a certain amount of pulse-width jitter is allowed.

The variance in output pulse width from device to device typically is less than ±0.5% for given external timing components. An example of this distribution for the ’221 is shown in Figure 3. V ariations in output pulse width versus supply voltage and temperature for the ’221 are shown in Figures 4 and 5, respectively.

Pin assignments for these devices are identical to those of the SN54123/SN74123 or SN54LS123/SN74LS123 so that the ’221 or ’LS221 devices can be substituted for those products in systems not using the retrigger by merely changing the value of R

and/or C

ext

; however, the polarity of the capacitor must be changed.

ext

The SN54221 and SN54LS221 are characterized for operation over the full military temperature range of –55°C to 125°C. The SN74221 and SN74LS221 are characterized for operation from 0°C to 70°C.

(out) = C

extRext

In2 ≈ 0.7 C

extRext

. In

FUNCTION TABLE

(each monostable multivibrator)

INPUTS OUTPUTS

CLR A B Q Q

L X X L H X HXLH

X XLLH H L ↑ H ↓ H

‡

↑

†

Pulsed-output patterns are tested during AC switching at 25°C with R C

ext

‡

This condition is true only if the output of the latch formed by the two NAND gates has been conditioned to the logic 1 state prior to CLR conditioned by taking either A high or B low while CLR

L H

= 80 pF.

going high. This latch is

is inactive (high).

† † † †

= 2 kΩ, and

ext

† †

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

logic symbol

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the D, DB, J, N, and W packages.

†

ext/Cext

1A 1B

1CLR

ext

2A 2B

2CLR

ext

1 2

3 14

15 9 10

11 6

R CX

RX/CX

R CX

RX/CX

timing component connections

NOTE: Due to the internal circuit, the R

To C

Terminal

terminal is never more positive than the C

ext/Cext

ext

To R

ext/Cext

Terminal

ext

terminal.

ext

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54221, SN54LS221, SN74221, SN74LS221 DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

schematics of inputs and outputs

SN54/74221

EQUIVALENT OF EACH INPUT TYPICAL OF ALL OUTPUTS

Input

A Input: Req = 4 kΩ NOM

Input: Req = 2 kΩ NOM

B, CLR

SN54/74LS221

EQUIVALENT OF EACH INPUT TYPICAL OF ALL OUTPUTS

Input

100 Ω NOM

120 Ω NOM

Output

A Input: Req = 25 kΩ NOM

B Input: Req = 15.4 kΩ NOM

CLR

: Req = 12.5 kΩ NOM

Output

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UNIT

∆v/∆t

Rise or fall of input pulse rate

SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, V

Input voltage range, VI (see Note 1): ’LS221 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance, θJA (see Note 2): D package 113°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

†

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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero

7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

’221 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DB package 131°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

N package 78°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

recommended operating conditions

SN54221 SN74221

MIN NOM MAX MIN NOM MAX

V V V I

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested.

Supply voltage 4.5 5 5.5 4.75 5 5.25 V

High-level input voltage A input 2 2 V

Low-level input voltage A input 0.8 0.8 V

High-level output current –800 –800 µA Low-level output current 16 16 mA

Operating free-air temperature –55 125 0 70 °C

B input 1* 1 V/s A input 1* 1 V/µs

†

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SN54221, SN54LS221, SN74221, SN74LS221

PARAMETER

TEST CONDITIONS

†

UNIT

MAX

2.4 V

MAX

UNIT

twPulse duration

Output duty cycle

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)

SN54221 SN74221

MIN TYP‡MAX MIN TYP‡MAX

Positive-going threshold voltage,

T+

B input Negative-going threshold voltage,

T–

B input

A input

CLR, B input A input

CLR, B input

Quiescent

Triggered

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested. †

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 the duration of the short circuit should not exceed one second.

VCC = MIN 1.55 2* 1.55 2 V

VCC = MIN 0.8* 1.35 0.8 1.35 V VCC = MIN, II = –12 mA –1.5 –1.5 V

VCC = MIN, IOH = –800 µA 2.4 3.4 2.4 3.4 V VCC = MIN, IOL = 16 mA 0.2 0.4 0.2 0.4 V VCC = MAX, VI = 5.5 V 1 1 mA

VCC = MAX –20 –55 –18 –55 mA

= 0.4

26 50* 26 50 46 80* 46 80

40 40

80 80 –1.6 –1.6 –3.2 –3.2

timing requirements over recommended ranges of supply voltage and operating free-air temperature

SN54221 SN74221

MIN MAX MIN MAX

A or B input 50 50 CLR 20 20

R C

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested. ¶

Inactive-state setup time is also referred to as recovery time.

Setup time, inactive-state¶ External timing resistance

ext

External timing capacitance

ext

CLR 15 15 ns

1.4* 30* 1.4 40 kΩ 0* 1000* 0 1000 µF

= 2 kΩ 67% 67%

ext

= MAX R

ext

90% 90%

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PARAMETER

TEST CONDITIONS

UNIT

kΩ

CLR

kΩ

A or B

Q or Q

UNIT

∆v/∆t

Rise or fall of input pulse rate

SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

switching characteristics VCC = 5 V, RL = 400 Ω, TA = 25_C (see Figures 1 and 2)

FROM TO

(INPUT) (OUTPUT)

PLH

PHL

PLH

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested.

A B A B

Q Q

= 80 pF,

ext

= 80 pF,

ext

= 80 pF, R

ext

= 0, R

ext

= 100 pF, R

ext

= 1 µF, R

ext

= 2

ext

= 2

ext

= 2 kΩ

ext

= 2 kΩ

ext

= 10 kΩ

ext

= 10 kΩ

ext

recommended operating conditions

V V V I

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested.

Supply voltage 4.5 5 5.5 4.75 5 5.25 V

High-level input voltage A input 2 2 V

Low-level input voltage A input 0.7 0.8 V

High-level output current –400 –400 µA Low-level output current 4 8 mA

Operating free-air temperature –55 125 0 70 °C

B input 1 A input 1

SN54221 SN74221

MIN TYP MAX MIN TYP MAX

45 70 45 70 35 55 35 55 50 80 50 80 40 65 40 65

27 27

40 40 70 110 150 70 110 150 17 30 50 17 30 50

650 700 750 650 700 750

6.5* 7 7.5* 6.5 7 7.5 ms

SN54LS221 SN74LS221

MIN NOM MAX MIN NOM MAX

* *

1 V/s 1 V/µs

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SN54221, SN54LS221, SN74221, SN74LS221

PARAMETER

TEST CONDITIONS

†

UNIT

VOLV

MIN

MAX

UNIT

twPulse duration

Output duty cycle

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)

SN54LS221 SN74LS221

MIN TYP‡MAX MIN TYP‡MAX

Positive-going threshold voltage,

T+

B input Negative-going threshold voltage,

T–

B input

A input

CLR, B input

Quiescent

Triggered

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested. †

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 the duration of the short circuit should not exceed one second.

VCC = MIN 1 2* 1 2 V

VCC = MIN 0.7* 0.9 0.8 0.9 V VCC = MIN, II = –18 mA –1.5 –1.5 V

VCC = MIN, IOH = –400 µA 2.5 3.4 2.7 3.4 V

VCC = MAX, VI = 7 V 0.1 0.1 mA VCC = MAX, VI = 2.7 V 20 20 µA

VCC = MAX –20 –100 –20 –100 mA

IOL = 4 mA 0.25 0.4 0.25 0.4 IOL = 8 mA 0.35 0.5

= 0.4

–0.4 –0.4 –0.8 –0.8

4.7 11 4.7 11 19 27* 19 27

timing requirements over recommended ranges of supply voltage and operating free-air temperature

SN54LS221 SN74LS221

MIN MAX MIN MAX

A or B 50 50 CLR 40 40

R C

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested. ¶

Inactive-state setup time is also referred to as recovery time.

Setup time, inactive state External timing resistance

ext

External timing capacitance

ext

CLR 15 15 ns

1.4* 70* 1.4 100 kΩ 0* 1000* 0 1000 µF

RT = 2 kΩ 50% 50% RT = MAX R

ext

90% 90%

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PARAMETER

TEST CONDITIONS

UNIT

kΩ

CLR

kΩ

A or B

Q or Q

SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

switching characteristics VCC = 5 V, RL = 2 kΩ, TA = 25_C (see Figures 1 and 2)

FROM TO

(INPUT) (OUTPUT)

PLH

PHL

PLH

∗ On products compliant to MIL-PRF-38535, this parameter is not production tested.

A B A B

Q Q

= 80 pF,

ext

= 80 pF,

ext

= 80 pF, R

ext

= 0, R

ext

= 100 pF, R

ext

= 1 µF, R

ext

= 2

ext

= 2

ext

= 2 kΩ

ext

= 2 kΩ

ext

= 10 kΩ

ext

= 10 kΩ

ext

SN54LS221 SN74LS221

MIN TYP MAX MIN TYP MAX

45 70 45 70 35 55 35 55 50 80 50 80 40 65 40 65 35 55 35 55

44 65 44 65 70 120 150 70 120 150 20 47 70 20 47 70

670 740 810 670 740 810

6* 6.9 7.5* 6 6.9 7.5 ms

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54221, SN54LS221, SN74221, SN74LS221 DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

PARAMETER MEASUREMENT INFORMATION

†

≥ 60 ns

CLR

PLH

PHL

CONDITION 1: TRIGGER FROM B, THEN CLR

PHL

PLH

3 V

0 V

3 V

0 V

†

A is low.

CLR

†

Triggered

Not Triggered

≥ 60 ns

CONDITION 2: TRIGGER FROM B, THEN CLR

≥ 50 ns

CONDITION 3: CLR

≥ 0

OVERRIDING B, THEN TRIGGER FROM B

3 V

0 V

3 V

0 V

3 V

0 V

3 V

0 V

Figure 1. Switching Characteristics

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

PARAMETER MEASUREMENT INFORMATION

CLR

†

≥ 50 ns

CONDITION 4: TRIGGERING FROM POSITIVE TRANSITION OF CLR

‡

≥ 60 ns

PLH

PHL

≥ 50 ns

PHL

PLH

3 V

0 V

3 V

0 V

3 V

0 V

3 V

0 V

CONDITION 5: TRIGGER FROM A, THEN CLR

‡

†

A is low.

‡

B and CLR

NOTES: A. Input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50Ω; for SN54/74221, tr ≤ 7 ns,

are high.

tf ≤ 7 ns, for SN54/74LS221, tr ≤ 15 ns, tf ≤ 6 ns.

B. All measurements are made between the 1.5-V points of the indicated transitions for the SN54/74221 or between the 1.3-V points

for the SN54/74LS221.

CONDITION 6: TRIGGER FROM A

3 V

0 V

Figure 1. Switching Characteristics (Continued)

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SN54221, SN54LS221, SN74221, SN74LS221 DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

PARAMETER MEASUREMENT INFORMATION

Test

Point

From Output

Under Test

Timing

Input

Data

Input

CL = 15 pF

(see Note A)

LOAD CIRCUIT FOR

BI-STATE

TOTEM-POLE OUTPUTS

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

(see Note B)

3 V

0 V

3 V

0 V

High-Level

Pulse

Low-Level

Pulse

Input

In-Phase

Output

Out-of-Phase

Output

VOLTAGE WAVEFORMS

PULSE DURATIONS

PLH

PHL

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

PHL

PLH

3 V

0 V

NOTES: A. CL includes probe and jig capacitance.

B. All diodes are 1N3064 or equivalent. C. In the examples above, the phase relationships between inputs and outputs have been chosen arbitrarily. D. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50 Ω and, for SN54/74221,

tr ≤ 7 ns, tf ≤ 7 ns, for SN54/74LS221, tr ≤ 15 ns, tf ≤ 6 ns.

E. All measurements are made between the 1.5-V points of the indicated transitions for the SN54/74221 or between the 1.3-V points

for the SN54/74LS221.

Figure 2. Load Circuits and Voltage Waveforms

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SN54221, SN54LS221, SN74221, SN74LS221

DUAL MONOSTABLE MULTIVIBRATORS

WITH SCHMITT-TRIGGER INPUTS

SDLS213A – DECEMBER 1983 – REVISED FEBRUARY 1998

TYPICAL CHARACTERISTICS (SN54/74221 ONLY)

DISTRIBUTION OF UNITS

FOR

OUTPUT PULSE

VCC = 5 V TA = 25°C

Relative Frequency of Occurrence

Median

+0.5%

Median

tw – Output Pulse

Figure 3

Median

+0.5%

VARIATION IN OUTPUT PULSE

= 60 pF

ext

= 10 kΩ

ext

TA = 25°C

0.5

– 0.5

– Variation in Output Pulse – %∆ t

–1

4.5 4.75 5

†

SUPPLY VOLTAGE

tw ≈ 420 ns at VCC = 5 V

5.25 5.5

VCC – Supply Voltage – V

Figure 4

VARIATION IN OUTPUT PULSE

FREE-AIR TEMPERATURE

VCC = 5 V C

= 60 pF

ext

= 10 kΩ

ext

0.5

– 0.5

– Variation in Output Pulse – %

∆ t

–1

–25–50–75

TA – Free-Air Temperature – °C

02550

tw ≈ 420 ns at TA = 25°C

75 100 125

10 ms

1 ms

100 µs

10 µs

– Output Pulset

100 ns

10 ns

= 1

ext

= 0.1

ext

= 0.01

ext

= 1000 pF

ext

1 µs

= 100 pF

ext

VCC = 5 V TA = 25°C

12 4710

Figure 5

†

Data for temperatures below 0°C and above 70°C, and for supply voltages below 4.75 V and above 5.25 V are applicable for the SN54221 only .

NOTE A: These values of resistance exceed the maximum recommended for use over the full military temperature range of the SN54221.

OUTPUT PULSE

TIMING RESISTOR VALUE

FµC

= 10 pF

ext

See Note A

20 40 70 100

– Timing Resistor Value – kΩ

ext

Figure 6

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IMPORTANT NOTICE

T exas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current and complete.

TI warrants performance of its semiconductor products and related software to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.

Certain applications using semiconductor products may involve potential risks of death, personal injury, or severe property or environmental damage (“Critical Applications”).

TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.

Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI products in such applications requires the written approval of an appropriate TI officer . Questions concerning potential risk applications should be directed to TI through a local SC sales office.

In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. Nor does TI warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used.

Texas Instruments JM38510-31402B2A, JM38510-31402BFA, JM38510-31402BEA, SN54221J, SN54LS221J Datasheet

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