Details, datasheet, quote on part number: SN74LS257B
CategoryLogic => Multiplexers/Demultiplexers => Multiplexers->Bipolar->LS Family
TitleMultiplexers->Bipolar->LS Family
DescriptionQuad 2-input Multiplexer With 3-state Outputs
CompanyON Semiconductor
DatasheetDownload SN74LS257B datasheet
Cross ref.Similar parts: SN74LS253N, SN74LS151D, SN74LS151DR2, SN74LS153D, SN74LS153DR2, SN74LS157D, SN74LS157DR2, SN74LS158D, SN74LS158DR2, SN74LS251D
Find where to buy


Features, Applications

The LSTTL/MSI SN74LS257B and the SN74LS258B are Quad 2-Input Multiplexers with 3-state outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (non-inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (EO) Input, allowing the outputs to interface directly with bus oriented systems. It is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all ON Semiconductor TTL families.

Schottky Process For High Speed Multiplexer Expansion By Tying Outputs Together Non-Inverting 3-State Outputs Input Clamp Diodes Limit High Speed Termination Effects Special Circuitry Ensures Glitch Free Multiplexing ESD > 3500 Volts

Parameter Supply Voltage Operating Ambient Temperature Range Output Current ­ High Output Current ­ Low

Device SN74LS258BM SN74LS258BMEL Package 16 Pin DIP SOEIAJ­16 16 Pin DIP SOIC­16 SOEIAJ­16 Shipping 2000 Units/Box 38 Units/Rail 2500/Tape & Reel See Note 1 See Note 1 2000 Units/Box 38 Units/Rail 2500/Tape & Reel See Note 1 See Note 1

1. For ordering information on the EIAJ version of the SOIC package, please contact your local ON Semiconductor representative.

8 GND Zd 9 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual InLine Package.


Some Part number from the same manufacture ON Semiconductor
SN74LS257BD Quad 2-Input Multiplexer With 3-State Output, Package: Soic, Pins=16
SN74LS258B Quad 2-input Multiplexer With 3-state Outputs
SN74LS258BD Quad 2-Input Multiplexer With 3-State Output, Package: Soic, Pins=16
SN74LS259 8-bit Addressable Latch
SN74LS259D 8-Bit Adder Latch, Package: Soic, Pins=16
SN74LS260 Dual 5-input NOR GATE
SN74LS260D Dual 5-Input NOR GATE, Package: Soic, Pins=14
SN74LS273 Octal D Flip-flop With Clear
SN74LS273DW 8-Bit Register With Clear , Package: Soic, Pins=20
SN74LS273DWR2 8-Bit Register With Clear, Package: Soic, Pins=20
SN74LS280 9-bit Odd/even Parity Generators/checkers
SN74LS280N 9-Bit Output Enable Parity Generator/Checker, Package: Pdip, Pins=14
SN74LS283 4-bit Binary Full Adder With Fast Carry
SN74LS283N 4-Bit Binary Full Adder, Package: Pdip, Pins=16
SN74LS290 Decade Counter; 4-bit Binary Counter
SN74LS298 Quad 2-input Multiplexer With Storage
SN74LS298D Quad 2-Input Multiplexer With Storage, Package: Soic, Pins=16
SN74LS299 8-bit Shift/storage Register With 3-state Outputs
SN74LS299DW 8-Bit Shift/storage Register , Package: Soic, Pins=20
SN74LS299N 8-Bit Shift/storage Register, Package: Pdip, Pins=20

2N6274 : High-power NPN Silicon Transistors

BC847CDXV6T5 : General Purpose NPN Transistor , Package: SOT-563, Pins=6

LM285-2.5 : Micropower Voltage Reference Diodes

MC74AC00DR2 : Quad 2-Input NAND Gate, Package: Soic, Pins=14

MMSZ5223BT1 : Zener Regulator 2.5V , Package: SOD-123, Pins=2

MC74VHCT245ADTG : Quad Analog Switch/multiplexer/demultiplexer High−performance Silicon−gate CMOS

CAT1022WI-45-GT3 : Pmic - Supervisor Integrated Circuit (ics) Simple Reset/Power-On Reset Tape & Reel (TR) 1; IC SUPERVISOR CPU 2K EEPR 8SOIC Specifications: Output: Open Drain or Open Collector ; Reset: Active Low ; Package / Case: 8-SOIC (0.154", 3.90mm Width) ; Packaging: Tape & Reel (TR) ; Number of Voltages Monitored: 1 ; Reset Timeout: 130 ms Minimum ; Type: Simple Reset/Power-On Reset ; Voltage - Threshold: 4.5V ; Operating Tem

NLAS9099MN1R2G : Interface - Analog Switches, Multiplexers, Demultiplexer Integrated Circuit (ics); IC SWITCH 16-QFN Specifications: Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant

MMBT2222ALT3G : Small Signal GP NPN

Same catergory

74ACQ244 : Bus Oriented Circuits. Quiet Series Octal Buffer/line Driver With 3-STATE Outputs.

74ACT16657 : Bus Oriented Circuits. Members of the Texas Instruments WidebusTM Family Inputs Are TTL-Voltage Compatible Flow-Through Architecture Optimizes PCB Layout Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise EPIC TM (Enhanced-Performance Implanted CMOS) 1-µm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic 300-mil.

74F199 : Bipolar->F Family. 74F199; 8-bit Parallel-access Shift Register. Buffered clock and control inputs Shift right and parallel load capability Fully synchronous data transfers J-K(D) inputs to first stage Clock enable for hold (do nothing) mode Asynchronous Master Reset The an 8-bit Parallel Access Shift Register and its functional characteristics are indicated in the Logic Diagram and Function Table. The device is useful.

74LCX07T : CMOS/BiCMOS->LVT/ALVT/LCX/LPT Family->Low Voltage. Low Voltage Hex Buffer (open Drain) With 5v Tolerant Inputs.

CD54AC652 : Octal-bus Transceiver/registers, 3-state. Data sheet acquired from Harris Semiconductor SCHS294 This data sheet is applicable to the CD74AC562, CD74ACT651, and CD74ACT652. The CD54AC652, CD54ACT651, and CD54ACT652 were not acquired from Harris Semiconductor. .

CD54HCT259 : CMOS/BiCMOS->HC/HCT Family. High Speed CMOS Logic 8-bit Addressable Latch.

IDT74FCT138AT : CMOS/BiCMOS->FCT/FCT-T Family. Fast CMOS 1-of-8 Decoder With Enable.

MC100E131FN : 5V Ecl 4-Bit D-type Flip-flop , Package: Plcc, Pins=28. The is a quad master-slave D-type flip-flop with differential outputs. Each flip-flop may be clocked separately by holding Common Clock (CC) LOW and using the Clock Enable (CE) inputs for clocking. Common clocking is achieved by holding the CE inputs LOW and using CC to clock all four flip-flops. In this case, the CE inputs perform the function of controlling.

MC74HC4538AD : Multivibrator Prescision Monostable Dua , Package: Soic, Pins=16. MC74HC4538A Dual Precision Monostable Multivibrator (Retriggerable, Resettable) The MC74HC4538A is identical in pinout to the MC14538B. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This dual monostable multivibrator may be triggered by either the positive or the negative.

PI74STX1GT32 : 2-Input OR GATE w/ TTL Compatible Input. High-speed: tPD = 2.5ns typical into @ 5V VCC Power down high-impedance inputs/outputs TTL Compatible Input: VIL = 0.8V (Max.) VIH = 2.0V (Min.) Balanced Propagation Delay tPLH tPHL Package: 5-pin space saving SOT23 (T) and SC70 (C) The 2-input OR gate that operates over the to 5.5V VCC operating range. The input threshold levels are TTL compatible.

SK100E142 : 9-Bit Shift Register. The a 9-bit shift register, designed with byte-parity applications in mind. The E142 performs serial/parallel in and serial/parallel out, shifting in one direction. The nine inputs ­ D8 accept parallel input data, while S-IN accepts serial input data. The Qn outputs do not need to be terminated for the shift operation to function. To minimize noise.

SN54ACT574 : Octal D-type Edge-triggered Flip-flops With 3-state Outputs. SN54ACT574, SN74ACT574 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS Inputs Are TTL-Voltage Compatible EPIC TM (Enhanced-Performance Implanted CMOS) 1-µm Process Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard.

SN54GTL16923 : 18-bit Lvttl-to-gtl/gtl Bus Transceivers. Members of the Texas Instruments Widebus TM Family D-Type Flip-Flops With Qualified Storage Enable Translate Between GTL/GTL+ Signal Levels and LVTTL Logic Levels Support Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltages With 3.3-V VCC) Ioff Supports Partial-Power-Down-Mode Operation Bus Hold on Data Inputs Eliminates the Need for External.

SN74ALS29841 : Bipolar->ALS Family. 10-bit Bus-interface D-type Latch With 3-state Outputs.

SN74BCT29843DW : D-Type (3-State) Latches. ti SN74BCT29843, 9-Bit Bus Interface D-type Latches.

0-C     D-L     M-R     S-Z