ST M74HC139 Dual 2 to 4 Decoder Demultiplexer Data Sheet
Summary
The M74HC139 is a high-speed, low-power CMOS Quad 2 to 4 line decoder/demultiplexer logic gate IC. It efficiently interprets two address inputs and controls four corresponding outputs, making it indispensable for data selection, demultiplexing, and complex control circuit design. This component features wide operating voltage compatibility (2V–6V) and high noise immunity, ensuring reliable signal processing even in demanding digital environments. Ideal for hardware engineers requiring precise logic gating with stable performance and minimal power dissipation.
Page 1 Text Content
M74HC139
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
HIGH SPEED: t PD = 13ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.)
SYMMETRICAL OUTPUT IMPEDANCE: SOP TSSOPDIP
|IOH| = IOL = 4m A (MIN) BALANCED PROPAGATION DELAYS: t PLH ≅ t PHL ORDER CODES WIDE OPERATING VOLTAGE RANGE:
PACKAGE TUBE T & R
VCC (OPR) = 2V to 6V
DIP M74HC139B1R
PIN AND FUNCTION COMPATIBLE WITH
SOP M74HC139M1R M74HC139RM13TR
74 SERIES 139
TSSOP M74HC139TTR
DESCRIPTION The M74HC139 is an high speed CMOS QUAD While the enable input is held high, all four outputs 2-INPUT NAND GATE fabricated with silicon gate are high independently of the other inputs. C2MOS technology. All inputs are equipped with protection circuits The active low enable input can be used for gating against static discharge and transient excess or as a data input for demultiplexing applications. voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/9July 2001
Page Summary Contents For ST M74HC139 Dual 2 to 4 Decoder Demultiplexer Data Sheet
Manual Details
| Brand | Dual |
|---|---|
| Pages | 9 |
| File Size | 313.33 KB |
| Published | May 28, 2026 |
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Frequently Asked Questions
How does the M74HC139 operate its outputs?
All four outputs are high when the active low enable input is held high.
What type of applications can I use the active low enable input for?
You can use it for gating against static discharge and transient excess voltage, or as a data input for demultiplexing applications.
What is the recommended operating voltage range for this decoder/demultiplexer?
The recommended operating voltage range (V(OPR)) is 2V to 6V.
Are there multiple physical packages available for the M74HC139?
Yes, it comes in DIP, SOP, and TSSOP formats, and is pin/function compatible with these packages.