SN74LS259BDIn StockTexas Instruments
SN74LS259BD is an 8-bit addressable latch IC from Texas Instruments, featuring 1:8 demultiplexer with latch, active-low reset, and 8 independent D-type latch outputs. From $0.27 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LS259BD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2739(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit addressable latch with 1:8 DMUX followed by latch for flexible data storage
- Active-low reset controlled only when latch enable is high, ensuring data integrity
- Low output current (8mA) with 15pF load capacitance for stable high-speed operation
- LS-family logic compatibility for seamless integration in TTL-based digital systems
Applications
The SN74LS259BD is widely used in microprocessor-based systems for address decoding and data bus expansion, enabling efficient control of multiple output lines from a single address input. It suits industrial control systems, programmable logic controllers, and embedded designs requiring 8-channel latch demultiplexing. Its TTL-compatible LS-family logic makes it ideal for legacy digital circuit upgrades and new designs needing reliable latch-and-demux functionality.
Specifications
| YTEOL | 0 |
| Additional Feature | 1:8 DMUX FOLLOWED BY LATCH; RESET ACTIVE ONLY WHEN LATCH ENABLE IS HIGH |
| Family | LS |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | D LATCH |
| Max I(ol) | 0.008A |
| Number of Bits | 1 |
| Number of Functions | 8 |
| 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) | 36mA |
| Prop. Delay@Nom-Sup | 30ns |
| Propagation Delay (tpd) | 24ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| 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 |
| Trigger Type | LOW LEVEL |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74LS259BD and what are its key parameters?
The SN74LS259BD is an 8-bit addressable latch IC from Texas Instruments. It integrates a 1:8 demultiplexer followed by a latch, with a maximum output current (Iol) of 8mA and a load capacitance of 15pF. It operates in the LS logic family and comes in a 16-pin SOIC (R-PDSO-G16) package.
What are typical applications for the SN74LS259BD?
The SN74LS259BD is commonly used in microprocessor systems for address decoding, data bus expansion, and multi-channel output control. It is also found in industrial control systems, embedded designs, and programmable logic controllers where 8-channel addressable latching is required.
What package does the SN74LS259BD come in and are there alternative package options?
The SN74LS259BD comes in a 16-pin SOIC package (JESD-30 code R-PDSO-G16). Texas Instruments also offers the SN74LS259B series in other packages such as DIP (through-hole) variants, allowing designers to choose based on PCB assembly requirements.
How does the reset function work on the SN74LS259BD?
The SN74LS259BD features an active-low reset that is only active when the latch enable input is high. This design prevents accidental resets during normal latch operation, ensuring data integrity and predictable behavior in digital control applications.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7470 | $0.75 |
| 81+ | $0.6225 | $50.42 |
| 575+ | $0.3113 | $179.00 |
| 2571+ | $0.2739 | $704.20 |
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