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HC257 Datasheet PDF - STMicroelectronics

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HC257
ST-Microelectronics
STMicroelectronics ST-Microelectronics
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HC257 Datasheet PDF : HC257 pdf     
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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 IMMUNITY: VNIH = VNIL = 28% VCC (MIN.)
■ POWER DOWN PROTECTION ON INPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
■ OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 5.5V
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257
■ IMPROVED LATCH-UP IMMUNITY
■ LOW NOISE: VOLP = 0.8V (MAX.)

 

部品番号
コンポーネント説明
PDF
メーカー
QUAD 2 CHANNEL MULTIPLEXER (3-STATE)
STMicroelectronics
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TC74AC257P/F/FN 2-Channel Multiplexer (3-state)/ TC74AC258P/F/FN 2-Channel Multiplexer (3-state,inverting)
Toshiba
QUAD 2-CHANEL MULTIPLEXER (3-STATE)
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QUAD 2-CHANEL MULTIPLEXER (3-STATE)
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Quad 2-Input Multiplexer with 3-State Outputs
Motorola => Freescale
QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
Motorola => Freescale
QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
Motorola => Freescale

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