SN74LS299DWRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LS299DWRG4 is an 8-bit Universal Shift/Storage Register from Texas Instruments, supporting bidirectional shift with parallel-in/parallel-out operation, hold mode, and up to 20MHz frequency in a 20-pin SOIC package. From $0.80 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LS299DWRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit bidirectional universal shift register with parallel-in/parallel-out and hold mode for versatile data handling
- 20MHz maximum operating frequency enables high-speed serial-to-parallel and parallel-to-serial data conversion
- Common I/O pins and hold mode reduce bus pin count and simplify interface design in data buffering applications
Applications
The SN74LS299DWRG4 is used in digital systems requiring flexible 8-bit serial and parallel data handling, including microprocessor bus interfaces, data buffering circuits, and serial communication bridges. Its bidirectional shift capability makes it ideal for implementing shift registers in programmable logic controllers and embedded control systems. The device also serves in test equipment and data acquisition systems where simultaneous serial and parallel data management is needed.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | HOLD MODE; COMMON I/O PINS |
| Count Direction | BIDIRECTIONAL |
| Family | LS |
| JESD-30 Code | R-PDSO-G20 |
| Load Capacitance (CL) | 45pF |
| Logic IC Type | PARALLEL IN PARALLEL OUT |
| Max Frequency@Nom-Sup | 20000000Hz |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 53mA |
| Propagation Delay (tpd) | 39ns |
| 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 Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 20MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the bit width and shift direction of the SN74LS299DWRG4?
The SN74LS299DWRG4 is an 8-bit universal shift register supporting bidirectional operation, enabling both left-shift and right-shift data movement as well as parallel load and hold modes in a single device.
What is the maximum operating frequency of the SN74LS299DWRG4?
The SN74LS299DWRG4 operates at a maximum frequency of 20MHz at nominal supply voltage, making it suitable for moderate-speed data serialization and deserialization tasks in digital logic applications.
What package does the SN74LS299DWRG4 come in?
The SN74LS299DWRG4 is packaged in a 20-pin Small Outline (SOIC) package with JESD-30 code R-PDSO-G20, offering a compact surface-mount form factor with 45pF load capacitance for standard digital board designs.
What special features does the SN74LS299DWRG4 include?
The SN74LS299DWRG4 includes a hold mode that retains stored data without shifting, and common I/O pins that reduce the number of required bus connections, simplifying board-level wiring in data storage and transfer 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.
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