Datasheet > SN74CB3T3257PWR

SN74CB3T3257PWR

更新时间： 2024-01-26 08:53:18

品牌	Logo	应用领域
德州仪器 - TI		转换器电平转换器解复用器开关
页数	文件大小	规格书
12页	162K
描述
4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER

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替代型号

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SN74CB3T3257PWR 数据手册

SN74CB3T3257

4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER

2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER

www.ti.com

SCDS149–OCTOBER 2003–REVISED MARCH 2005

FEATURES

•

Low Power Consumption (I_CC= 20 µA Max)

•

Output Voltage Translation Tracks V_CC

V_CCOperating Range From 2.3 V to 3.6 V

•

Supports Mixed-Mode Signal Operation on All

Data I/O Ports

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)

– 5-V Input Down to 3.3-V Output Level Shift

With 3.3-V V_CC

•

Control Inputs Can Be Driven by TTL or

5-V/3.3-V CMOS Outputs

– 5-V/3.3-V Input Down to 2.5-V Output Level

Shift With 2.5-V V_CC

I_offSupports Partial-Power-Down Mode

Operation

•

5-V-Tolerant I/Os With Device Powered Up or

Powered Down

Latch-Up Performance Exceeds 250 mA Per

JESD 17

Bidirectional Data Flow With Near-Zero

Propagation Delay

ESD Performance Tested Per JESD 22

– 2000-V Human-Body Model

(A114-B, Class II)

Low ON-State Resistance (r_on) Characteristics

(r_on= 5 Ω Typ)

– 1000-V Charged-Device Model (C101)

Low Input/Output Capacitance Minimizes

Loading (C_io(OFF)= 5 pF Typ)

•

Supports Digital Applications: Level

Translation, USB Interface, Memory

Interleaving, Bus Isolation

Data and Control Inputs Provide Undershoot

Clamp Diodes

Ideal for Low-Power Portable Equipment

DGV OR PW PACKAGE

(TOP VIEW)

1B1

1B2

2B1

2B2

4B1

4B2

3B1

3B2

GND

DESCRIPTION/ORDERING INFORMATION

The SN74CB3T3257 is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance

(r_on), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data

I/O ports by providing voltage translation that tracks V_CC. The SN74CB3T3257 supports systems using 5-V TTL,

3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).

ORDERING INFORMATION

T_A

PACKAGE⁽¹⁾

ORDERABLE PART NUMBER

SN74CB3T3257PW

TOP-SIDE MARKING

KS257

Tube

TSSOP – PW

TVSOP – DGV

–40°C to 85°C

Tape and reel

SN74CB3T3257PWR

SN74CB3T3257DGVR

KS257

(1) 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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...12

中文翻译

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SN74CB3T3257PWR 替代型号

型号	品牌	替代类型	描述	数据表
SN74CB3T3257PWRE4	TI	完全替代	具有电平转换器的 3.3V、2:1 (SPDT)、4 通道 FET 总线开关 \| PW \|
SN74CB3T3257PWRG4	TI	完全替代	4-BIT 1-OF-2 FET MULT/DEMULT 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V TOLERANT LEVEL SH
SN74CB3T3257PW	TI	完全替代	4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOL

与SN74CB3T3257PWR相关器件

型号	品牌	获取价格	描述	数据表
SN74CB3T3257PWRE4	TI	获取价格	具有电平转换器的 3.3V、2:1 (SPDT)、4 通道 FET 总线开关 \| PW \|
SN74CB3T3257PWRG4	TI	获取价格	4-BIT 1-OF-2 FET MULT/DEMULT 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V TOLERANT LEVEL SH
SN74CB3T3306	TI	获取价格	DUAL FET BUS SWITCH
SN74CB3T3306_16	TI	获取价格	Dual FET Bus Switch
SN74CB3T3306DCTR	TI	获取价格	DUAL FET BUS SWITCH
SN74CB3T3306DCUR	TI	获取价格	DUAL FET BUS SWITCH
SN74CB3T3383	TI	获取价格	10-BIT FET BUS-EXCHANGE SWITCH 2.5V/3.3-V LOW-VOLTAGE BUSSWITCH WITH 5-V-TOLERANT LEVEL SH
SN74CB3T3383DBQR	TI	获取价格	10-BIT FET BUS-EXCHANGE SWITCH 2.5V/3.3-V LOW-VOLTAGE BUSSWITCH WITH 5-V-TOLERANT LEVEL SH
SN74CB3T3383DGVR	TI	获取价格	10-BIT FET BUS-EXCHANGE SWITCH 2.5V/3.3-V LOW-VOLTAGE BUSSWITCH WITH 5-V-TOLERANT LEVEL SH
SN74CB3T3383DW	TI	获取价格	10-BIT FET BUS-EXCHANGE SWITCH 2.5V/3.3-V LOW-VOLTAGE BUSSWITCH WITH 5-V-TOLERANT LEVEL SH

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