logo

74LS240 National Semiconductor Octal TRI-STATE Buffers/Line Drivers/Line Receivers Datasheet

SN74LS240NE4 Buffers & Line Drivers Octal Buffers and Line Drivers


National Semiconductor
74LS240
Part Number 74LS240
Manufacturer National Semiconductor
Description These buffers line drivers are designed to improve both the performance and PC board density of TRI-STATE buffers drivers employed as memory-address drivers clock drivers and bus-oriented transmitters receivers Featuring 400 mV of hysteresis at each low current PNP data line input they provide impro...
Features Y Y Y Y Y TRI-STATE outputs drive bus lines directly PNP inputs reduce DC loading on bus lines Hysteresis at data inputs improves noise margins Typical IOL (sink current) 54LS 12 mA 74LS 24 mA Typical IOH (source current) b 12 mA 54LS b 15 mA 74LS Typical propagation delay times Inverting 10 5 ns Noninverting 12 ns Typical enable disable time 18 ns Typical power dissipation (enabled) Inverting 130 mW Noninverting 135 mW Connection Diagrams Dual-In-Line Package Dual-In-Line Package TL F 6411
  – 1 TL F 6411
  – 2 Order Number DM54LS240J DM54LS240W DM54LS240E DM74LS240WM or DM74LS240N See NS ...

Document Datasheet 74LS240 datasheet pdf (142.98KB)
Distributor Distributor
Mouser Electronics
Stock 1128 In Stock
Price
1 units: 1.2 USD
10 units: 1.08 USD
100 units: 0.838 USD
500 units: 0.692 USD
1000 units: 0.546 USD
2500 units: 0.51 USD
5000 units: 0.484 USD
10000 units: 0.466 USD
BuyNow BuyNow BuyNow (Manufacturer a Texas Instruments)




74LS240 Distributor

part
Texas Instruments
SN74LS240DW
LOGIC, BUFF/DVR TRI-ST OCTAL, 20SOICW
2500 units: 1404 KRW
1000 units: 1460 KRW
500 units: 1542 KRW
250 units: 1652 KRW
100 units: 1790 KRW
50 units: 1996 KRW
10 units: 2409 KRW
1 units: 2753 KRW
Distributor
element14 Asia-Pacific

10 In Stock
BuyNow BuyNow
part
Texas Instruments
SN74LS240NSR
버퍼, 반전 2 소자 4 소자당 비트 3 상태 Output 20-SO
10000 units: 648.9631 KRW
6000 units: 674.31366 KRW
2000 units: 709.801 KRW
Distributor
DigiKey

12000 In Stock
BuyNow BuyNow
part
Texas Instruments
SN74LS240NE4
Buffers & Line Drivers Octal Buffers and Line Drivers
1 units: 1.2 USD
10 units: 1.08 USD
100 units: 0.838 USD
500 units: 0.692 USD
1000 units: 0.546 USD
2500 units: 0.51 USD
5000 units: 0.484 USD
10000 units: 0.466 USD
Distributor
Mouser Electronics

1128 In Stock
BuyNow BuyNow
part
Texas Instruments
SN74LS240N
Octal buffer/linedriver,SN74LS240N 20pcs, TU
1000 units: 26.93 HKD
400 units: 27.62 HKD
200 units: 28.328 HKD
100 units: 29.055 HKD
20 units: 29.8 HKD
Distributor
RS

200 In Stock
BuyNow BuyNow
part
Texas Instruments
SN74LS240N
Analog Switches, Multiplexers, Demultiplexers
1 units: 0.592 USD
Distributor
Chip1Stop

2 In Stock
BuyNow BuyNow
part
onsemi
SN74LS240M
Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin SO EIAJ '
1000 units: 0.116 USD
500 units: 0.1229 USD
100 units: 0.1283 USD
25 units: 0.1338 USD
1 units: 0.1365 USD
Distributor
Rochester Electronics

380 In Stock
BuyNow BuyNow
part
Motorola Semiconductor Products
74LS240N
Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, DIP
445 units: 0.36 USD
112 units: 0.45 USD
1 units: 0.9 USD
Distributor
Quest Components

1122 In Stock
BuyNow BuyNow
part
NTE Electronics Inc
NTE74LS240
IC: digital; buffer,inverting,line driver; Ch: 8; TTL; THT; DIP20
250 units: 1.87 USD
100 units: 2 USD
25 units: 2.13 USD
1 units: 2.27 USD
Distributor
TME

2 In Stock
BuyNow BuyNow
part
Major Brands
74LS240
IC 74LS240 OCTAL BUFFER/LINE DRIVER
1 units: 1.09 USD
10 units: 0.89 USD
100 units: 0.75 USD
Distributor
Jameco Electronics

1353 In Stock
BuyNow BuyNow
part
Texas Instruments
SN74LS240DWR
IC INVERTER DUAL 4-INPUT 20SOIC
No price available
Distributor
Ameya Holding Limited

4000 In Stock
No Longer Stocked





74LS240 Similar Datasheet

Part Number Description
74LS20
manufacturer
Fairchild Semiconductor
Dual 4-Input NAND Gate
This device contains two independent gates each of which performs the logic NAND function. Ordering Code: Order Number DM74LS20M DM74LS20N Package Number M14A N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y = ABCD Inputs A X X X L H B X X L X H C X L X X H D L X X X H Output Y H H H H L H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level © 2000 Fairchild Semiconductor Corporation DS006355 www.fairchi...
74LS20
manufacturer
Hitachi Semiconductor
Dual 4-input Positive NAND Gates
Unit: mm 19.20 20.32 Max 14 8 6.30 7.40 Max 1 2.39 Max 1.30 7 7.62 0.51 Min 2.54 Min 5.06 Max 2.54 ± 0.25 0.48 ± 0.10 0.25 – 0.05 0° – 15° + 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) DP-14 Conforms Conforms 0.97 g Unit: mm 10.06 10.5 Max 14 8 5.5 1 7 *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 7.80 – 0.30 1.15 0° – 8° + 0.20 1.42 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.70 ± 0.20 0.15 0.12 M Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA — Conforms 0.23 g *Dimension including the plating thickness Base material dimension Unit: mm 8.65 9.05 Max 14 8 3.95 1 1.75 Max 7 *0.20 ± 0.05 6.10 – 0.30 1.08 + 0.10 0.635 Max 0° – 8° 0.67 0.60 + – 0.20 1.27 *0.4...
74LS20
manufacturer
National Semiconductor
Dual 4-Input NAND Gates
This device contains two independent gates each of which performs the logic NAND function Features Y Alternate Military Aerospace device (54LS20) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6355 – 1 Order Number 54LS20DMQB 54LS20FMQB 54LS20LMQB DM54LS20J DM54LS20W DM74LS20M or DM74LS20N See NS Package Number E20A J14A M14A N14A or W14B Function Table Y e ABCD Inputs A X X X L H B X X L X H C X L X X H D L X X X H Output Y H H H H L H e High Logic Level L e Low Logic Level X e Either Low or High Logic Level C1995 National Semiconductor Corporation TL F 6355 RRD-B30M105 Printed in U S A Absolu...
74LS20
manufacturer
Motorola
DUAL 4-INPUT NAND GATE
SN54/74LS20 DUAL 4-INPUT NAND GATE DUAL 4-INPUT NAND GATE VCC 14 13 12 11 10 9 8 LOW POWER SCHOTTKY 1 2 3 4 5 6 7 GND 14 1 J SUFFIX CERAMIC CASE 632-08 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION SN54LSXXJ SN74LSXXN SN74LSXXD Ceramic Plastic SOIC GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current — High Output Current — Low Parameter 54 74 54 74 54, 74 54 74 Min 4.5 4.75 – 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 – 0.4 4.0 8.0 Unit V °C mA mA FAST AND LS TTL DATA 5-29 SN54/74LS20 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits...
74LS21
manufacturer
Motorola
DUAL 4-INPUT AND GATE
DUAL 4-INPUT AND GATE SN54/74LS21 VCC 14 13 12 11 10 9 8 DUAL 4-INPUT AND GATE LOW POWER SCHOTTKY 1234567 GND GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage TA Operating Ambient Temperature Range IOH Output Current — High IOL Output Current — Low 14 1 J SUFFIX CERAMIC CASE 632-08 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION SN54LSXXJ SN74LSXXN SN74LSXXD Ceramic Plastic SOIC Min Typ Max Unit 54 4.5 5.0 5.5 74 4.75 5.0 5.25 V 54 – 55 25 125 °C 74 0 25 70 54, 74 – 0.4 mA 54 4.0 mA 74 8.0 FAST AND LS TTL DATA 5-1 SN54 / 74LS21 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified...
74LS21
manufacturer
Hitachi Semiconductor
Dual 4-input Positive AND Gates
Unit: mm 19.20 20.32 Max 14 8 6.30 7.40 Max 1 2.39 Max 1.30 7 7.62 0.51 Min 2.54 Min 5.06 Max 2.54 ± 0.25 0.48 ± 0.10 0.25 – 0.05 0° – 15° + 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) DP-14 Conforms Conforms 0.97 g Unit: mm 10.06 10.5 Max 14 8 5.5 1 7 *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 7.80 – 0.30 1.15 0° – 8° + 0.20 1.42 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.70 ± 0.20 0.15 0.12 M Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA — Conforms 0.23 g *Dimension including the plating thickness Base material dimension Unit: mm 8.65 9.05 Max 14 8 3.95 1 1.75 Max 7 *0.20 ± 0.05 6.10 – 0.30 1.08 + 0.10 0.635 Max 0° – 8° 0.67 0.60 + – 0.20 1.27 *0.4...
74LS22
manufacturer
Motorola
DUAL 4-INPUT NAND GATE
DUAL 4-INPUT NAND GATE SN54/74LS22 VCC 14 13 12 11 10 98 * * 1234567 GND * OPEN COLLECTOR OUTPUTS GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage TA Operating Ambient Temperature Range VOH IOL Output Voltage — High Output Current — Low DUAL 4-INPUT NAND GATE LOW POWER SCHOTTKY 14 1 J SUFFIX CERAMIC CASE 632-08 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION SN54LSXXJ SN74LSXXN SN74LSXXD Ceramic Plastic SOIC Min Typ Max Unit 54 4.5 5.0 5.5 74 4.75 5.0 5.25 V 54 – 55 25 125 °C 74 0 25 70 54, 74 55 V 54 4.0 mA 74 8.0 FAST AND LS TTL DATA 5-1 SN54 / 74LS22 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (u...
74LS221
manufacturer
ON Semiconductor
Dual Monostable Multivibrators
SN74LS221 Dual Monostable Multivibrators with Schmitt-Trigger Inputs Each multivibrator of the LS221 features a negative-transitiontriggered input and a positive-transition-triggered input either of which can be used as an inhibit input. Pulse triggering occurs at a voltage level and is not related to the transition time of the input pulse. Schmitt-trigger input circuitry for B input allows jitter-free triggering for inputs as slow as 1 volt / second, providing the circuit with excellent noise immunity. A high immunity to VCC noise is also provided by internal latching circuitry. Once triggered, the outputs are independent of further transitions of the inputs and are a function of the timing...
74LS221
manufacturer
Fairchild Semiconductor
Dual Non-Retriggerable One-Shot
The DM74LS221 is a dual monostable multivibrator with Schmitt-trigger input. Each device has three inputs permitting the choice of either leading-edge or trailing-edge triggering. Pin (A) is an active-LOW trigger transition input and pin (B) is an active-HIGH transition Schmitt-trigger input that allows jitter free triggering for inputs with transition rates as slow as 1 volt/second. This provides the input with excellent noise immunity. Additionally an internal latching circuit at the input stage also provides a high immunity to VCC noise. The clear (CLR) input can terminate the output pulse at a predetermined time independent of the timing components. This (CLR) input also serves as a trig...
74LS240
manufacturer
ON Semiconductor
LOW POWER SCHOTTKY
SN74LS240 SN74LS244 Octal Buffer/Line Driver with 3-State Outputs The SN74LS240 and SN74LS244 are Octal Buffers and Line Drivers designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers which provide improved PC board density. http://onsemi.com • Hysteresis at Inputs to Improve Noise Margins • 3-State Outputs Drive Bus Lines or Buffer Memory Address • Input Clamp Diodes Limit High-Speed Termination Effects GUARANTEED OPERATING RANGES Symbol VCC TA IOH Parameter Supply Voltage Operating Ambient Temperature Range Output Current – High Min 4.75 0 Typ 5.0 25 Max 5.25 70 – 3.0 – 15 IOL Output Current – Low 24 Unit V °C 20 Registers LOW POWER SCHO...




logo    Since 2024. D4U Semiconductor.   |   Contact Us   |   Privacy Policy