Specification	CY74FCT257TQCT

Circuit [custom]	4
Circuit [custom]	2:1
Current - Output High, Low [custom]	64 mA
Current - Output High, Low [custom]	32 mA
Independent Circuits	1
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	0.154 in
Package / Case	16-SSOP
Package / Case	3.9 mm
Supplier Device Package	16-SSOP
Type	Multiplexer
Voltage - Supply [Max]	5.25 V
Voltage - Supply [Min]	4.75 V
Voltage Supply Source	Single Supply

CY74FCT257T Series

Quadruple 1-of-2 Data Selectors/Multiplexers with 3-State Outputs

Part	Supplier Device Package	Voltage Supply Source	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case	Package / Case	Package / Case	Voltage - Supply [Min]	Voltage - Supply [Max]	Circuit [custom]	Circuit [custom]	Mounting Type	Type	Operating Temperature [Max]	Operating Temperature [Min]	Independent Circuits	Package / Case [x]	Package / Case [y]
Texas Instruments CY74FCT257TQC	16-SSOP	Single Supply	64 mA	32 mA	0.154 in	16-SSOP	3.9 mm	4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1
Texas Instruments CY74FCT257CTSOC	16-SOIC	Single Supply	64 mA	32 mA		16-SOIC		4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1	0.295 in	7.5 mm
Texas Instruments CY74FCT257ATD	16-SOIC	Single Supply	64 mA	32 mA		16-SOIC		4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1	0.154 in	3.9 mm
Texas Instruments CY74FCT257TQCT	16-SSOP	Single Supply	64 mA	32 mA	0.154 in	16-SSOP	3.9 mm	4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1
Texas Instruments CY74FCT257ATQCT	16-SSOP	Single Supply	64 mA	32 mA	0.154 in	16-SSOP	3.9 mm	4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1
Texas Instruments CY74FCT257CTD	16-SOIC	Single Supply	64 mA	32 mA		16-SOIC		4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1	0.154 in	3.9 mm
Texas Instruments CY74FCT257ATQC	16-SSOP	Single Supply	64 mA	32 mA	0.154 in	16-SSOP	3.9 mm	4.75 V	5.25 V	4	2:1	Surface Mount	Multiplexer	85 °C	-40 °C	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.44
	Digi-Reel®	1	$ 1.44
	Tape & Reel (TR)	2500	$ 0.61
		5000	$ 0.58
		12500	$ 0.56
Texas Instruments	LARGE T&R	1	$ 1.07
		100	$ 0.82
		250	$ 0.60
		1000	$ 0.43

Description

General part information

CY74FCT257T Series

The CY74FCT257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input. The I0inputs are selected when S is low, and the I1inputs are selected when S is high. Data at the output is noninverted.

The CY74FCT257T is a logic implementation of a four-pole, two-position switch, where the position of the switch is determined by the logic levels at S. Outputs are in the high-impedance state when the output-enable (OE\) input is high.

All but one device must be in the high-impedance state to avoid currents exceeding the maximum ratings if outputs are tied together. OE\ inputs must ensure that there is no overlap when outputs of 3-state devices are tied together.

Documents

Technical documentation and resources

CY74FCT257TQCT

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CY74FCT257TQCT

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Technical Specifications

CY74FCT257T Series

Pricing

Description

CY74FCT257T Series

Documents

LOGIC Pocket Data Book (Rev. B)

Quad 2-Input Multiplexer With 3-State Outputs datasheet (Rev. D)

Selecting the Right Level Translation Solution (Rev. A)

Advanced Bus Interface Logic Selection Guide

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

Logic Guide (Rev. AB)

CYFCT Parameter Measurement Information

CY74FCT257T Series