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Datasheet

74HC4851
(Product Specification)
09-Mar-07, 20 pages, 114 kB

8-channel analog multiplexer/demultiplexer with injection-current effect control

General description
Features
Products/packages
Chemical content
Pricing/ordering/availability
Samples
Applications
Block diagrams/pinning
Technical documents
Parametrics/similar products
Print/email

General description

The 74HC4851 is a high-speed Si-gate CMOS device and is specified in compliance with JEDEC standard no. 7A.

The 74HC4851 is an 8-channel analog multiplexer/demultiplexer with three digital select inputs (S0 to S2), an active-LOWenable input (E), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z). The device features injection-current effect control, which has excellent value in automotive applications where voltages in excess of the supply voltage are common.

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.

The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel. This eliminates the need for external diode/resistor networks typically used to keep the analog channel signals within the supply-voltage range.

Features

  • Injection-current cross coupling < 1 mV/mA
  • Wide supply voltage range from 2.0 V to 6.0 V
  • ESD protection:
    • HBM JESD22-A114D Class 2. Exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
    • CDM JESD22-C101C exceeds 1000 V
  • Latch-up performance exceeds 100 mA per JESD 78 Class II
  • Low ON-state resistance:
    • 400 Ohm (typical) at VCC = 2.0 V
    • 215 Ohm (typical) at VCC = 3.0 V
    • 120 Ohm (typical) at VCC = 3.3 V
    • 76 Ohm (typical) at VCC = 4.5 V
    • 59 Ohm (typical) at VCC = 6.0 V

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
74HC4851BQ74HC4851BQ-G9352 820 86115Volume productionSOT763-1
(DHVQFN16)
Reel Pack, SMD, 7"Standard Marking74HC4851BQ
Always Pb-free
74HC4851D74HC4851D9352 820 83112Volume productionSOT109-1
(SO16)
TubeStandard Marking74HC4851D
Always Pb-free
74HC4851D74HC4851D-T9352 820 83118Volume productionSOT109-1
(SO16)
Reel Pack, SMD, 13"Standard Marking74HC4851D
Always Pb-free
74HC4851PW74HC4851PW9352 820 84112Volume productionSOT403-1
(TSSOP16)
TubeStandard Marking74HC4851PW
Always Pb-free
74HC4851PW74HC4851PW-T9352 820 84118Volume productionSOT403-1
(TSSOP16)
Reel Pack, SMD, 13"Standard Marking74HC4851PW
Always Pb-free

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
74HC4851BQ9352 820  86115        Order samples
74HC4851D9352 820  83112       not available
74HC4851D9352 820  83118        Order samples
74HC4851PW9352 820  84112       not available
74HC4851PW9352 820  84118        Order samples

Applications

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


Related applications
Low / mid-range analog CRT TV (TV200)
Highly featured analog CRT TV (TV210)
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)

Block diagrams/pinning

Technical documents

Support Documents

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

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