74HC/HCT4351

General description

The 74HC/HCT4351 are high-speed Si-gate CMOS devices. They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT4351 are 8-channel analog multiplexers/demultiplexers with three select inputs (S₀ to S₂), two enable inputs (E₁ and E₂), a latch enable input (LE), eight independent inputs/outputs (Y₀ to Y₇) and a common input/output (Z).

With E₁ LOW and E₂ is HIGH, one of the eight switches is selected (low impedance ON-state) by S₀ to S₂. The data at the select inputs may be latched by using the active LOW latch enable input (LE). When LE is HIGH the latch is transparent. When either of the two enable inputs, E₁ (active LOW) and E₂ (active HIGH), is inactive, all 8 analog switches are turned off.

V_CC and GND are the supply voltage pins for the digital control inputs (S₀ to S₂, LE, E₁ and E₂). The V_CC to GND ranges are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT. 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' resistance:
  80 W (typ.) at V_CC - V_EE = 4.5 V
  70 W (typ.) at V_CC - V_EE = 6.0 V
  60 W (typ.) 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
• Address latches provided
• Output capability: non-standard
• I_CC category: MSI

Products/packages

Pricing/ordering/availability

Applications

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

Design support

Support Documents

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

Parametrics/similar products

Similar products
74HC/HCT4351 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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