SN74LS590DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LS590DG4 is an 8-stage upward binary counter with registered outputs and terminal count output (TCO), housed in a 16-pin SOIC package from Texas Instruments. It belongs to the 74LS logic family, operates at 5 V, supports load capacitances up to 45 pF, and suits clock division and event counting in digital logic boards.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LS590DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74LS590DG4?
- 8-stage binary up-counter with registered parallel outputs
- Terminal count output (TCO) for easy cascading to higher bit widths
- 16-pin SOIC package with 1.27 mm pitch
- 74LS family TTL logic: 5 V supply, standard speed/drive
- Load capacitance up to 45 pF per output
- Registered outputs hold count state independent of clock glitches
- RoHS-compliant e4 lead-free construction
- Uni-directional (count-up only) for simple frequency division
What is SN74LS590DG4 used for?
SN74LS590DG4 is used in clock frequency division, event counting, and address generation circuits in legacy and industrial digital systems running at 5 V TTL logic levels. Its TCO output allows multiple devices to be cascaded for 16-bit or wider counters without additional glue logic, making it a staple in programmable timer circuits, industrial encoder interfaces, and educational microprocessor lab kits. The 16-pin SOIC package provides a compact footprint suitable for through-hole and surface-mount PCB assemblies.
What are the specifications of SN74LS590DG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | TCO OUTPUT; REGISTERED OUTPUTS |
| Count Direction | UP |
| Family | LS |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 45pF |
| Load/Preset Input | NO |
| Logic IC Type | BINARY COUNTER |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.024A |
| Mode of Operation | ASYNCHRONOUS |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Characteristics | 3-STATE |
| 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) | 65mA |
| Prop. Delay@Nom-Sup | 33ns |
| Propagation Delay (tpd) | 33ns |
| Qualification Status | Not Qualified |
| 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 |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 35MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74LS590DG4 datasheet?
SN74LS590DG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LS590DG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which designs are a good fit for SN74LS590DG4 with 45 pF?
SN74LS590DG4 fits clock generation, timing distribution, and communication reference designs when the design needs 45 pF and 5 V. It is a practical choice when the BOM also matches the 16-pin SOIC footprint.
How should engineers check package compatibility for SN74LS590DG4?
Compare the PCB land pattern, height allowance, and assembly process against the 16-pin SOIC style. The 16 pins detail is the first check before approving a replacement.
What matters when sourcing SN74LS590DG4 as a replacement?
Confirm the same 45 pF, 5 V, manufacturer traceability, and lifecycle status before substituting it. Buyers should also verify stock for the exact 16-pin SOIC configuration.
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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.
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