Integrated Circuits (ICs)

SN74AHC138PW

Obsolete

2V-TO-5.5V 3-LINE TO 8-LINE DECODER AND DEMULTIPLEXER

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Search across all available documentation for this part.

DocumentsBenefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)Advanced High-Speed CMOS (AHC) Logic Family (Rev. C)+18

Integrated Circuits (ICs)

SN74AHC138PW

Obsolete

Texas Instruments

2V-TO-5.5V 3-LINE TO 8-LINE DECODER AND DEMULTIPLEXER

Deep-Dive with AI

DocumentsBenefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)Advanced High-Speed CMOS (AHC) Logic Family (Rev. C)+18

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SN74AHC138PW

Circuit	1 x 3:8
Current - Output High, Low [custom]	8 mA
Current - Output High, Low [custom]	8 mA
Independent Circuits	1
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	16-TSSOP
Package / Case [x]	0.173 in
Package / Case [y]	4.4 mm
Supplier Device Package	16-TSSOP
Type	Decoder/Demultiplexer
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V
Voltage Supply Source	Single Supply

SN74AHC138 Series

2V-to-5.5V 3-line to 8-line decoder and demultiplexer

Part	Package / Case	Package / Case [x]	Package / Case [y]	Operating Temperature [Max]	Operating Temperature [Min]	Type	Voltage Supply Source	Circuit	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Voltage - Supply [Max]	Voltage - Supply [Min]	Mounting Type	Supplier Device Package	Independent Circuits	Package / Case [custom]	Package / Case [custom]	Package / Case	Package / Case
Texas Instruments SN74AHC138DRE4	16-SOIC	0.154 in	3.9 mm	85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-SOIC	1
Texas Instruments SN74AHC138DR	16-SOIC	0.154 in	3.9 mm	85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-SOIC	1
Texas Instruments SN74AHC138PW	16-TSSOP	0.173 in	4.4 mm	85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-TSSOP	1
Texas Instruments SN74AHC138D	16-SOIC	0.154 in	3.9 mm	85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-SOIC	1
Texas Instruments SN74AHC138DG4	16-SOIC	0.154 in	3.9 mm	85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-SOIC	1
Texas Instruments SN74AHC138DBR	16-SSOP			85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-SSOP	1	0.209 in	5.3 mm
Texas Instruments SN74AHC138PWRG4	16-TSSOP	0.173 in	4.4 mm	85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-TSSOP	1
Texas Instruments SN74AHC138RGYR	16-VFQFN Exposed Pad			85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-VQFN (4x3.5)	1
Texas Instruments SN74AHC138N	16-DIP			85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Through Hole	16-PDIP	1			0.3 in	7.62 mm
Texas Instruments SN74AHC138NSR	16-SOIC			85 °C	-40 °C	Decoder/Demultiplexer	Single Supply	1 x 3:8	8 mA	8 mA	5.5 V	2 V	Surface Mount	16-SO	1			0.209 "	5.3 mm

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.82
		10	$ 1.15
		25	$ 0.98
		100	$ 0.78
		250	$ 0.69
		500	$ 0.63
		1000	$ 0.58
Texas Instruments	TUBE	1	$ 0.86
		100	$ 0.66
		250	$ 0.49
		1000	$ 0.35

Description

General part information

SN74AHC138 Series

The SNx4AHC138 decoders/demultiplexers are designed for high-performance memory-decoding and data-routing applications that require very short propagation-delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

Documents

Technical documentation and resources

Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)

Application note

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Application note

Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices

Application note

Implications of Slow or Floating CMOS Inputs (Rev. E)

Application note

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

Application note

Live Insertion

Application note

How to Select Little Logic (Rev. A)

Application note

SN74AHC138PW

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SN74AHC138PW

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Technical Specifications

SN74AHC138 Series

Pricing

Description

SN74AHC138 Series

Documents

Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)

Advanced High-Speed CMOS (AHC) Logic Family (Rev. C)

LOGIC Pocket Data Book (Rev. B)

AHC/AHCT Designer's Guide February 2000 (Rev. D)

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Design Summary for WCSP Little Logic (Rev. B)

SNx4AHC138 3-Line to 8-Line Decoders/Demultiplexers datasheet (Rev. N)

Military Advanced High-Speed CMOS Logic (AHC/AHCT) (Rev. C)

Texas Instruments Little Logic Application Report

CMOS Power Consumption and CPD Calculation (Rev. B)

Selecting the Right Level Translation Solution (Rev. A)

Little Logic Guide 2018 (Rev. G)

TI IBIS File Creation, Validation, and Distribution Processes

Logic Guide (Rev. AB)

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices

Implications of Slow or Floating CMOS Inputs (Rev. E)

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

Live Insertion

How to Select Little Logic (Rev. A)

SN74AHC138 Series