Datasheet > SN74CB3Q32245

SN74CB3Q32245

更新时间： 2024-09-14 22:14:39

品牌	Logo	应用领域
德州仪器 - TI		开关
页数	文件大小	规格书
10页	278K
描述
32 bit BUS SWITCH 2.5-V/3.3-V HIGH BANDWIDTH

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SN74CB3Q32245 数据手册

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SCES622 – JANUARY 2005

Member of the Texas Instruments

Widebus+ Family

Data and Control Inputs Provide

Undershoot Clamp Diodes

High-Bandwidth Data Path

Low Power Consumption

†

(Up to 500 MHz )

= 2 mA Typical)

5-V-Tolerant I/Os with Device Powered Up

or Powered Down

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)

Low and Flat ON-State Resistance (r

)

Characteristics Over Operating Range

(r = 5 Ω Typical)

Control Inputs Can be Driven by TTL or

5-V/3.3-V CMOS Outputs

Rail-to-Rail Switching on Data I/O Ports

− 0- to 5-V Switching With 3.3-V V

− 0- to 3.3-V Switching With 2.5-V V

Supports Partial-Power-Down Mode

off

Operation

Bidirectional Data Flow, With Near-Zero

Propagation Delay

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

Low Input/Output Capacitance Minimizes

Loading and Signal Distortion

ESD Performance Tested Per JESD 22

− 2000-V Human-Body Model

(A114-B, Class II)

= 4 pF Typical)

io(OFF)

Fast Switching Frequency

(f = 20 MHz Max)

− 1000-V Charged-Device Model (C101)

Supports Both Digital and Analog

†

For additional information regarding the performance

characteristics of the CB3Q family, refer to the TI

application report, CBT-C, CB3T, and CB3Q

Signal-Switch Families, literature number SCDA008.

Applications: PCI Interface, Differential

Signal Interface, Memory Interleaving, Bus

Isolation, Low-Distortion Signal Gating

description/ordering information

The SN74CB3Q32245 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 (r ). 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 SN74CB3Q32245 provides an optimized

interface solution ideally suited for broadband communications, networking, and data-intensive computing

systems.

The SN74CB3Q32245 is organized as four 8-bit bus switches with separate output-enable (1OE, 2OE, 3OE,

4OE) inputs. It can be used as four 8-bit bus switches, two 16-bit bus switches, or as one 32-bit bus switch. When

OE is low, the associated 8-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional

data flow between ports. When OE is high, the associated 8-bit bus switch is OFF, and a high-impedance state

exists between the A and B ports.

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

‡

PACKAGE

LFBGA − GKE

LFBGA − ZKE (Pb-free)

Tape and reel

SN74CB3Q32245GKER

SN74CB3Q32245ZKER

−40°C to 85°C

BZ245

‡

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Widebus+ is a trademark of Texas Instruments.

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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...10

中文翻译

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与SN74CB3Q32245相关器件

型号	品牌	获取价格	描述	数据表
SN74CB3Q32245GKER	TI	获取价格	32 bit BUS SWITCH 2.5-V/3.3-V HIGH BANDWIDTH
SN74CB3Q32245ZKER	TI	获取价格	32 bit BUS SWITCH 2.5-V/3.3-V HIGH BANDWIDTH
SN74CB3Q3244	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH
SN74CB3Q3244_15	TI	获取价格	8-BIT FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH
SN74CB3Q3244DBQR	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH
SN74CB3Q3244DBR	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH
SN74CB3Q3244DGVR	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH
SN74CB3Q3244DW	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH
SN74CB3Q3244DWR	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH
SN74CB3Q3244GQNR	TI	获取价格	8 BIT FET BUS SWITCH 2.5V/3.3 V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH

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