SN74CB3T3257PWR datasheet(1/12 Pages) TI

部品番号	SN74CB3T3257PWR

部品情報	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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FEATURES

DGV OR PW PACKAGE

(TOP VIEW)

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S

1B1

1B2

1A

2B1

2B2

2A

GND

VCC

OE

4B1

4B2

4A

3B1

3B2

3A

DESCRIPTION/ORDERING INFORMATION

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

SCDS149 – OCTOBER 2003 – REVISED MARCH 2005

•

Low Power Consumption (ICC = 20 µA Max)

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Output Voltage Translation Tracks VCC

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VCC Operating Range From 2.3 V to 3.6 V

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Supports Mixed-Mode Signal Operation on All

•

Data I/Os Support 0- to 5-V Signaling Levels

Data I/O Ports

(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

•

Control Inputs Can Be Driven by TTL or

With 3.3-V VCC

5-V/3.3-V CMOS Outputs

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

•

Ioff Supports Partial-Power-Down Mode

Shift With 2.5-V VCC

Operation

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

•

Latch-Up Performance Exceeds 250 mA Per

Powered Down

JESD 17

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Bidirectional Data Flow With Near-Zero

•

ESD Performance Tested Per JESD 22

Propagation Delay

– 2000-V Human-Body Model

•

Low ON-State Resistance (ron) Characteristics

(A114-B, Class II)

(ron = 5 Ω Typ)

– 1000-V Charged-Device Model (C101)

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Low Input/Output Capacitance Minimizes

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Supports Digital Applications: Level

Loading (Cio(OFF) = 5 pF Typ)

Translation, USB Interface, Memory

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Data and Control Inputs Provide Undershoot

Interleaving, Bus Isolation

Clamp Diodes

•

Ideal for Low-Power Portable Equipment

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

(ron), 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 VCC. 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

TA

PACKAGE(1)

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Tube

SN74CB3T3257PW

TSSOP – PW

KS257

–40

°C to 85°C

Tape and reel

SN74CB3T3257PWR

TVSOP – DGV

Tape and reel

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.

同様の部品番号 - SN74CB3T3257PWR

メーカー	部品番号	データシート	部品情報
Texas Instruments	SN74CB3T3257PWR	547Kb / 16P	[Old version datasheet] 4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
	SN74CB3T3257PWRE4	547Kb / 16P	[Old version datasheet] 4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER
	SN74CB3T3257PWRG4	547Kb / 16P	[Old version datasheet] 4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER

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同様の説明 - SN74CB3T3257PWR

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Texas Instruments	SN74CB3T3245	512Kb / 18P	[Old version datasheet] 8-BIT FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE WITH 5-V-TOLERANT LEVEL SHIFTER
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	SN74CB3T16210-Q1	453Kb / 14P	[Old version datasheet] 20-BIT FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER
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	SN74CB3T16211	218Kb / 15P	[Old version datasheet] 24-BIT FET SWITCH 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER
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