74HC4051; 74HCT4051

General description

The 74HC4051; 74HCT4051 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). The device is specified in compliance with JEDEC standard no. 7A.

The 74HC4051; 74HCT4051 is an 8-channel analog multiplexer/demultiplexer with three digital select inputs (S0 to S2), an active-LOW enable input (E), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z).

With E LOW, one of the eight switches is selected (low impedance ON-state) by S0 to S2. With E HIGH, all switches are in the high-impedance OFF-state, independent of S0 to S2.

V_CC and GND are the supply voltage pins for the digital control inputs (S0 to S2, and E). The V_CC to GND ranges are 2.0 V to 10.0 V for 74HC4051 and 4.5 V to 5.5 V for 74HCT4051. The analog inputs/outputs (Y0 to Y7, and Z) can swing between V_CC as a positive limit and V_EE as a negative limit. V_CC - V_EE may not exceed 10.0 V.

For operation as a digital multiplexer/demultiplexer, V_EE is connected to GND (typically ground).

Features

• Wide analog input voltage range: +-5 V
• Low ON-state resistance:
• 80 Ohm (typical) at V_CC - V_EE = 4.5 V
• 70 Ohm (typical) at V_CC - V_EE = 6.0 V
• 60 Ohm (typical) at V_CC - V_EE = 9.0 V
• Logic level translation:
• To enable 5 V logic to communicate with +-5 V analog signals
• Typical 'break before make' built in

Products/packages

Pricing/ordering/availability

Applications

• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing
• Signal gating

Related applications
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)

Block diagrams/pinning

Design support

Support Documents

HCT_USER_GUIDE; HC/T User Guide (1997-11-01)

Parametrics/similar products

Similar products
74HC4051; 74HCT4051 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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