SN74ALS253DIn StockTexas Instruments
SN74ALS253D is a dual 4-to-1 data selector/multiplexer IC from Texas Instruments ALS logic family, featuring active-low enable inputs, 4-bit data selection, and 50pF load capacitance. From $1.01 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALS253D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0097(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual 4-to-1 multiplexer with independent select and enable inputs per section
- ALS (Advanced Low-power Schottky) technology for high-speed, low-power operation
- Active-low output enable (G̅) for easy bus interface and expansion
- 16-pin SOIC (R-PDSO-G16) package for compact PCB integration
- Max output low current (IOL) of 24mA for robust drive capability
Applications
The SN74ALS253D is widely used in data routing and bus multiplexing applications within digital systems such as microprocessor interfaces, memory address selection, and programmable logic controllers. Its dual-channel architecture makes it ideal for parallel data path switching in communication equipment and industrial control systems. The ALS logic family's balance of speed and low power consumption also suits it for battery-powered embedded designs and high-density logic boards.
Specifications
| YTEOL | 0 |
| Family | ALS |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Inputs | 4 |
| Number of Outputs | 1 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 12mA |
| Prop. Delay@Nom-Sup | 21ns |
| Propagation Delay (tpd) | 21ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74ALS253D:
Multiplexer, ALS Series, 2-Func, 4 Line Input, 1 Line Output, True Output, TTL, PDSO16
Frequently Asked Questions
What is the SN74ALS253D and what does it do?
The SN74ALS253D is a dual 4-to-1 data selector/multiplexer IC from Texas Instruments. It selects one of four data inputs per section and routes it to the output, controlled by two common select lines (S0, S1). It operates with an active-low output enable and is packaged in a 16-pin SOIC, making it ideal for compact digital logic designs.
What are the key electrical specifications of the SN74ALS253D?
The SN74ALS253D features a load capacitance (CL) of 50pF, a maximum output low current (IOL) of 24mA, and belongs to the ALS (Advanced Low-power Schottky) logic family. It contains 2 multiplexer functions with 4 inputs each (4 bits wide), encoded in JESD-30 package code R-PDSO-G16 (16-pin SOIC), with JESD-609 code e4 for lead-free compatibility.
What are common applications for the SN74ALS253D?
The SN74ALS253D is commonly used in microprocessor data bus routing, memory address multiplexing, digital signal switching, and programmable logic controller (PLC) designs. Its dual-channel architecture supports parallel data path selection, making it suitable for communication interfaces, industrial automation systems, and embedded control boards requiring reliable high-speed switching.
What package does the SN74ALS253D come in, and are there pin-compatible alternatives?
The SN74ALS253D is available in a 16-pin SOIC package (JESD-30 code R-PDSO-G16). Pin-compatible alternatives within the 253-type multiplexer family include the SN74LS253 (standard LS logic), SN74HCT253 (CMOS with TTL-compatible inputs), and SN74ACT253 (advanced CMOS). Always verify voltage and timing compatibility before substituting in a design.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.6924 | $2.69 |
| 40+ | $1.2710 | $50.84 |
| 120+ | $1.1680 | $140.16 |
| 280+ | $1.1077 | $310.15 |
| 901+ | $1.0097 | $909.74 |
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