74HC257-Q100中文資料安世數(shù)據(jù)手冊PDF規(guī)格書

1. General description

The 74HC257-Q100; 74HCT257-Q100 is a quad 2-input multiplexer with 3-state outputs. Inputs

include clamp diodes. It enables the use of current limiting resistors to interface inputs to voltages

in excess of VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100

(Grade 1) and is suitable for use in automotive applications.

2. Features and benefits

? Automotive product qualification in accordance with AEC-Q100 (Grade 1)

? Specified from -40 °C to +85 °C and from -40 °C to +125 °C

? ? Wide supply voltage range from 2.0 V to 6.0 V

? CMOS low power dissipation

? High noise immunity

? Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

? Complies with JEDEC standards:

? JESD8C (2.7 V to 3.6 V)

? JESD7A (2.0 V to 6.0 V)

? Non-inverting data path

? 3-state outputs interface directly with system bus

? Input levels:

? For 74HC257-Q100: CMOS level

? For 74HCT257-Q100: TTL level

ESD protection:

? MIL-STD-883, method 3015 exceeds 2000 V

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)