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型号 功能描述 生产厂家 企业 LOGO 操作

丝印代码:HC257;SNx4HC257, SNx4HC258 Quadruple 2-Line to 1-Line Data Selectors/Multiplexers With 3-State Outputs

1 Features • Wide operating voltage range of 2 V to 6 V • High-current inverting outputs can drive up to 15 LSTTL loads • Low power consumption, 80-μA max ICC • 'HC257 typical tpd = 9 ns • 'HC258 typical tpd = 12 ns • ±6-mA output drive at 5 V • Low input current of 1 μA max • Provides bu

TI

德州仪器

丝印代码:HC257;SNx4HC257, SNx4HC258 Quadruple 2-Line to 1-Line Data Selectors/Multiplexers With 3-State Outputs

1 Features • Wide operating voltage range of 2 V to 6 V • High-current inverting outputs can drive up to 15 LSTTL loads • Low power consumption, 80-μA max ICC • 'HC257 typical tpd = 9 ns • 'HC258 typical tpd = 12 ns • ±6-mA output drive at 5 V • Low input current of 1 μA max • Provides bu

TI

德州仪器

丝印代码:HC257;SNx4HC257, SNx4HC258 Quadruple 2-Line to 1-Line Data Selectors/Multiplexers With 3-State Outputs

1 Features • Wide operating voltage range of 2 V to 6 V • High-current inverting outputs can drive up to 15 LSTTL loads • Low power consumption, 80-μA max ICC • 'HC257 typical tpd = 9 ns • 'HC258 typical tpd = 12 ns • ±6-mA output drive at 5 V • Low input current of 1 μA max • Provides bu

TI

德州仪器

丝印代码:HC257;SNx4HC257, SNx4HC258 Quadruple 2-Line to 1-Line Data Selectors/Multiplexers With 3-State Outputs

1 Features • Wide operating voltage range of 2 V to 6 V • High-current inverting outputs can drive up to 15 LSTTL loads • Low power consumption, 80-μA max ICC • 'HC257 typical tpd = 9 ns • 'HC258 typical tpd = 12 ns • ±6-mA output drive at 5 V • Low input current of 1 μA max • Provides bu

TI

德州仪器

丝印代码:HC257;SNx4HC257, SNx4HC258 Quadruple 2-Line to 1-Line Data Selectors/Multiplexers With 3-State Outputs

1 Features • Wide operating voltage range of 2 V to 6 V • High-current inverting outputs can drive up to 15 LSTTL loads • Low power consumption, 80-μA max ICC • 'HC257 typical tpd = 9 ns • 'HC258 typical tpd = 12 ns • ±6-mA output drive at 5 V • Low input current of 1 μA max • Provides bu

TI

德州仪器

HC257

Quad. 2-to-1-line Data Selectors/Multiplexers(with noninverted 3-state outputs)

Description The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in a bus organized system. When the output control input line is taken high, the outputs of all four multiplexers are sent into a high impedance state. When the out

HITACHIHitachi Semiconductor

日立日立公司

HC257

QUAD 2-CHANEL MULTIPLEXER (3-STATE)

TOSHIBA

东芝

HC257

Quad 2-Input Data Selector/Multiplexer with 3-State Outputs

The SL74HC257 is identical in pinout to the LS/ALS257. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. This device selects a (4-bit) nibble from either the A or B inputs as determined by the Select input. The nibble i

SLS

HC257

QUAD 2 CHANNEL MULTIPLEXER 3-STATE

DESCRIPTION The 74VHC257 is an advanced high-speed CMOS QUAD 2-CHANNEL MULTIPLEXER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. ■ HIGH SPEED: tPD = 3.7ns (TYP.) at VCC = 5V ■ LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA=25°C ■ HIGH NOISE I

STMICROELECTRONICS

意法半导体

HC257

Quad. 2-to-1-line Data Selectors/Multiplexers(with noninverted 3-state outputs)

HITACHIHitachi Semiconductor

日立日立公司

HC257

QUAD 2 CHANNEL MULTIPLEXER 3-STATE

STMICROELECTRONICS

意法半导体

HC257

QUAD 2-CHANEL MULTIPLEXER (3-STATE)

TOSHIBA

东芝

HC257

High Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs

文件:52.16 Kbytes Page:7 Pages

TI

德州仪器

丝印代码:HC257M;High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs

Features • Buffered Inputs • Typical Propagation Delay ( In to Output ) = 12ns at VCC = 5V, CL = 15pF, TA = 25oC • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating T

TI

德州仪器

丝印代码:HC257M;High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs

Features • Buffered Inputs • Typical Propagation Delay ( In to Output ) = 12ns at VCC = 5V, CL = 15pF, TA = 25oC • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating T

TI

德州仪器

丝印代码:HC257M;High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs

Features • Buffered Inputs • Typical Propagation Delay ( In to Output ) = 12ns at VCC = 5V, CL = 15pF, TA = 25oC • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating T

TI

德州仪器

HIGH VOLTAGE VIDEO AMPLIFIERS

DESCRIPTION The BF257, BF258 and BF259 are silicon planar epitaxial NPN transistors in Jedec TO-39 metal case. They are particularly designed for videooutput stages in CTV and MTV sets, class A audio output stages and drivers for horizontal deflection circuits.

STMICROELECTRONICS

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WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS

DESCRIPTION These circuits are monolithic J-FET input operational amplifiers incorporating well matched, high voltage J-FET on the same chip with standard bipolar transistors. This amplifiers feature low input bias and offset currents, low input offset voltage and input offset voltage drift,coup

STMICROELECTRONICS

意法半导体

WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS

DESCRIPTION These circuits are monolithic J-FET input operational amplifiers incorporating well matched, high voltage J-FET on the same chip with standard bipolar transistors. This amplifiers feature low input bias and offset currents, low input offset voltage and input offset voltage drift,coup

STMICROELECTRONICS

意法半导体

TRISILTM

DESCRIPTION The SMTPBxx series has been designedto protect telecommunication equipment against lightning and transient induced by AC power lines. FEATURES BIDIRECTIONAL CROWBAR PROTECTION. BREAKDOWNVOLTAGE RANGE: From 62 V To 270 V. HOLDING CURRENT: IH= 150 mA min REPETITIVE PE

STMICROELECTRONICS

意法半导体

更新时间:2026-5-15 17:47:00
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