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SN74HC4851QDRQ1

Name: SN74HC4851QDRQ1
Rating: 4.7 (12 reviews)

IC MUX/DEMUX 8X1 16SOIC

製造商
製造商。部分 #SN74HC4851QDRQ1
包 16-SOIC (0.154, 3.90mm Width)
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有現貨的9508

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規格

Supplier	Texas Instruments,Rochester Electronics, LLC
Package	Tape & Reel (TR),Cut Tape (CT),Bulk
Series	Automotive, AEC-Q100
ProductStatus	Active
Multiplexer/DemultiplexerCircuit	8:1
NumberofCircuits	1
On-StateResistance(Max)	195Ohm
Channel-to-ChannelMatching(ΔRon)	3Ohm
Voltage-SupplySingle(V+)	2V ~ 6V
SwitchTime(TonToff)(Max)	78ns, 78ns
ChannelCapacitance(CS(off)CD(off))	22pF
Current-Leakage(IS(off))(Max)	200nA
OperatingTemperature	-40°C ~ 125°C (TA)
MountingType	Surface Mount
Package/Case	16-SOIC (0.154, 3.90mm Width)

概述

Description

SN74HC4851QDRQ1 is TI’s 8-channel data selector/multiplexer in the HC CMOS family. It provides one common I/O pin (Z) that can be connected to one of eight data inputs (Y0–Y7) under control of three select lines (typically S2, S1, S0). An enable input places Z in a high‑impedance state when asserted, allowing bus sharing. The device is designed for standard CMOS logic levels and operates from a single supply (2–6 V, with 5 V typical). It offers fast switching and low power suitable for digital routing, multiplexing sensors, or implementing demultiplexing in reverse. The QDRQ1 suffix denotes a specific TI packaging/version (consult the datasheet for temperature range and package details). For exact pinout, timing, and electrical specs, refer to the SN74HC4851Q datasheet.

Features

SN74HC4851QDRQ1 is a 4-bit bidirectional bus transceiver with 3-state outputs. Key features:
- 4-bit bidirectional data path between two buses
- Direction control input (DIR) to select data flow
- 3-state outputs with an independent output-enable (OE)
- Vcc range: 2 V to 6 V; CMOS/TTL-compatible inputs
- Low static power (HC family)
- ESD protection on inputs (per JESD22)
- Package options: small 14-pin packages (DIP/SOIC/TSSOP); lead-free variants
- Industrial/automotive temperature variants often available (e.g., -40°C to 85°C, with extended ranges in other grades)
Applications include bus interfacing, data buffering, and microcontroller-to-peripheral communication where bidirectional, tri-state buffering is needed.

Package

It’s in a 16‑pin Small Outline IC package (SOIC‑16), RoHS Pb‑free (QDRQ1 package variant).

Pinout

- Pin count: 20 pins (dual 8-bit bus transceiver in a 20-pin package, e.g., SOP/TSSOP).
- Function: 8-bit bidirectional buffer/transceiver with 3-state outputs. Connects two 8-bit buses (A0–A7 and B0–B7); data flow direction is controlled by DIR; outputs can be disabled via OE/EN to place the bus in high-impedance. Automotive grade variant SN74HC4851QDRQ1.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational technology company that designs and manufactures semiconductors and integrated circuits (analog and digital), and is one of the world's largest semiconductor producers.

Application

SN74HC4851QDRQ1 is an 8-channel analog multiplexer/demultiplexer. Applications include:
- Routing one of eight signals to a common output or one input to eight outputs
- Data acquisition and instrumentation
- I/O expansion for microcontrollers
- Signal switching in audio/video and sensor/automation systems
- Automotive sensor networks
- Test equipment and lab instrumentation
- Embedded system channel selection and keyboard scanning