SN74CBTD3384DBQR

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SN74CBTD3384DBQR

IC BUS SWITCH 5 X 1:1 24SSOP

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規格

Supplier Texas Instruments,Rochester Electronics, LLC
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series 74CBTD
ProductStatus Active
Type Bus Switch
Circuit 5 x 1:1
IndependentCircuits 2
VoltageSupplySource Single Supply
Voltage-Supply 4.5V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 24-SSOP (0.154, 3.90mm Width)

概述

Description

SN74CBTD3384DBQR is an 8-bit bidirectional bus transceiver/level shifter from TI’s CBTD family. It connects two 8-bit buses (A and B) and lets data move in either direction under control of a single DIR input. An enable (OE) tri-states the outputs, allowing bus isolation. The device provides independent supply rails on the two sides (VCCA and VCCB), enabling voltage level translation between disparate logic families. Key features typically include Ioff (power-off isolation), TTL/CMOS-compatible inputs, and 3-state outputs for high-density bus interfacing. Applications include interfacing devices with different logic levels, buffering backplanes, or connecting microcontrollers to peripherals where bidirectional data paths and level shifting are needed. The DBQR suffix denotes the packaging/tape-and-reel variant of the part. For exact electrical specs, timing, and pinout, consult the TI datasheet.

Features

Here are the typical features of the SN74CBTD3384DBQR (bus transceiver/buffer):
- Octal (8-bit) bidirectional buffer/driver with a single bidirectional data path
- Direction control input (DIR) determines A→B or B→A data flow
- Separate Output Enable (OE) to put outputs in high-impedance
- Noninverting data path with 3-state outputs on both sides
- TTL/CMOS input thresholds; suitable for interfacing different voltage domains
- ESD protection on inputs and outputs
- Fast switching suitable for bus interfacing; low static power
- Package: DBQR (compact surface-mount package)
Note: For exact electrical specs (voltage ranges, propagation delays, power, temperature range) refer to the TI datasheet.

Package

RoHS-compliant DBQ small-outline package (gull-wing leaded, SOP/TSSOP-family; typically 20 pins for this device).

Pinout

- Pin count: 20 pins (20-pin package)
- Function: Octal buffer/driver with 3-state outputs (8-bit bus buffer with enable), used to buffer and isolate an 8-bit data bus.

Manufacturer

Manufacturer: Texas Instruments (TI).
Company type: American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits; one of the world's largest IC makers, headquartered in Dallas, Texas.

Application

SN74CBTD3384DBQR 是四路双向总线开关/电平转换器，应用于：
- 两电源域之间的双向数据传输与电平转换
- 总线隔离与 I/O 扩展
- 微控制器/处理器、外设、存储器、FPGA/ASIC 之间的信号路由与缓冲
- 板级背板/系统总线的信号传输与噪声抑制，提供可使能控制的无冲击切换

Equivalent

SN74CBTD3384DBQR is a 4-bit bidirectional bus transceiver with 3-state outputs. Direct equivalents are other vendors’ 4-bit bidirectional transceivers in the 74CB/CBTD family with the same voltage and timing. Common cross‑refs include:
- NXP: 74CBTD3384 (and family equivalents)
- Nexperia: 74CBTD3384 (and family equivalents)
- ON Semiconductor: MC74CBTD3384 (and equivalents)
- Renesas: uPD74CBTD3384 (and equivalents)
Verify package, Vcc, and speed grade in each datasheet.

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