MC74ACT138 Series

1-of-8 Decoder/Demultiplexer

Catalog

1-of-8 Decoder/Demultiplexer

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Circuit	Package / Case	Package / Case	Package / Case	Current - Output High, Low	Voltage - Supply [Min]	Voltage - Supply [Max]	Independent Circuits	Type	Voltage Supply Source	Supplier Device Package	Package / Case [x]	Package / Case [y]
ON Semiconductor MC74ACT138N	Through Hole	85 °C	-40 °C	1 x 3:8	0.3 in	16-DIP	7.62 mm	24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-PDIP
ON Semiconductor MC74ACT138DR2	Surface Mount	85 °C	-40 °C	1 x 3:8		16-SOIC		24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-SOIC	0.154 in	3.9 mm
ON Semiconductor 74ACT138PC	Through Hole	85 °C	-40 °C	1 x 3:8	0.3 in	16-DIP	7.62 mm	24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-PDIP
ON Semiconductor 74ACT138SJ	Surface Mount	85 °C	-40 °C	1 x 3:8	0.209 "	16-SOIC	5.3 mm	24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-SOP
ON Semiconductor 74ACT138SC	Surface Mount	85 °C	-40 °C	1 x 3:8		16-SOIC		24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-SOIC	0.154 in	3.9 mm
ON Semiconductor MC74ACT138DTR2	Surface Mount	85 °C	-40 °C	1 x 3:8		16-TSSOP		24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-TSSOP	0.173 in	4.4 mm
ON Semiconductor 74ACT138SC	Surface Mount	85 °C	-40 °C	1 x 3:8		16-SOIC		24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-SOIC	0.154 in	3.9 mm
ON Semiconductor MC74ACT138DR2G	Surface Mount	85 °C	-40 °C	1 x 3:8		16-SOIC		24 mA	4.5 V	5.5 V	1	Decoder/Demultiplexer	Single Supply	16-SOIC	0.154 in	3.9 mm

Catalog

1-of-8 Decoder/Demultiplexer

Key Features

• Demultiplexing Capability

• Multiple Input Enable for Easy Expansion

• Active LOW Mutually Exclusive Outputs

• Outputs Source/Sink 24 mA

• ACT138 Has TTL Compatible Inputs

• These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.

Description

The MC74AC138/74ACT138 is a high-speed 1-of-8 decoder/demultiplexer. This device is ideally suited for high-speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three MC74AC138/74ACT138 devices or a 1-of-32 decoder using four MC74AC138/ 74ACT138 devices and one inverter.