SN74CB3Q3345DBQR 供应商
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SN74CB3Q3345DBQR
品牌：TI 封装/批号：原厂原装/22+ -
SN74CB3Q3345DBQR
品牌：TI(德州仪器) 封装/批号：QSOP-20/2022+
SN74CB3Q3345DBQR 属性参数
- 标准包装：1
- 类别：集成电路 (IC)
- 家庭：逻辑 - 信号开关，多路复用器，解码器
- 系列：74CB
- 类型：FET 总线开关
- 电路：8 x 1:1
- 独立电路：1
- 输出电流高，低：15mA，30mA
- 电压电源：单电源
- 电源电压：2.3 V ~ 3.6 V
- 工作温度：-40°C ~ 85°C
- 安装类型：表面贴装
- 封装/外壳：20-SSOP（0.154"，3.90mm 宽）
- 供应商设备封装：20-SSOP/QSOP
- 包装：®
- 其它名称：296-19139-6
产品特性
- High-Bandwidth Data Path (up to 500 MHz)(1)
- 5-V-Tolerant I/Os With Device Powered Up or Powered Down
- Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range (ron = 4 Typ)
- Rail-to-Rail Switching on Data I/O Ports 0- to 5-V Switching With 3.3-V VCC 0- to 3.3-V Switching With 2.5-V VCC
- 0- to 5-V Switching With 3.3-V VCC
- 0- to 3.3-V Switching With 2.5-V VCC
- Bidirectional Data Flow With Near-Zero Propagation Delay
- Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 4 pF Typ)
- Fast Switching Frequency (fOE = 20 MHz Max)
- Data and Control Inputs Provide Undershoot Clamp Diodes
- Low Power Consumption (ICC = 0.7 mA Typ)
- VCC Operating Range From 2.3 V to 3.6 V
- Data I/Os Support 0- to 5-V Signaling Levels (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
- Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS Outputs
- Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Performance Tested Per JESD 22 2000-V Human-Body Model (A114-B, Class II) 1000-V Charged-Device Model (C101)
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
- Supports Both Digital and Analog Applications: Differential Signal Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating
产品概述
The SN74CB3Q3345 is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3345 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.The SN74CB3Q3384A is organized as an 8-bit bus switch with two output-enable (OE, OE) inputs. When OE is high or OE is low, the bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is low and OE is high, the bus switch is OFF, and a high-impedance state exists between the A and B ports.This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor and OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.
SN74CB3Q3345DBQR