SN74S299N3 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74S299N3 is an 8-bit universal shift/storage register from Texas Instruments in the high-speed S logic family. It supports bidirectional shift, parallel-in/parallel-out operation, and hold mode at up to 50 MHz in a 20-pin PDIP package. Available for worldwide purchase.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74S299N3 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 universal bidirectional shift register with parallel-in/parallel-out (PIPO) and hold mode for flexible data manipulation in digital systems
- High-speed S-family TTL operation up to 50 MHz maximum frequency with 45 pF load capacitance for demanding bus applications
- 20-pin PDIP through-hole package supporting 0°C to 70°C temperature range, ideal for industrial and commercial digital logic designs
Applications
The SN74S299N3 is used in high-speed data serialization, parallel-to-serial and serial-to-parallel conversion, and multi-bit data storage applications in microprocessor bus interfaces and digital signal processing systems. Its bidirectional shift capability and hold mode make it suitable for pipeline registers, FIFO stage elements, and data alignment buffers in communication and instrumentation equipment.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | HOLD MODE |
| Count Direction | BIDIRECTIONAL |
| Family | S |
| JESD-30 Code | R-PDIP-T20 |
| Load Capacitance (CL) | 45pF |
| Logic IC Type | PARALLEL IN PARALLEL OUT |
| Max Frequency@Nom-Sup | 50000000Hz |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 225mA |
| Propagation Delay (tpd) | 21ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 50MHz |
| Package | Dual-In-Line 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 SN74S299N3 and how many bits does it support?
The SN74S299N3 is an 8-bit universal shift/storage register from Texas Instruments' high-speed S logic family. It supports bidirectional shifting, parallel-in/parallel-out (PIPO) data transfer, and a hold mode, operating at up to 50 MHz with a 45 pF load capacitance.
What shift directions does the SN74S299N3 support?
The SN74S299N3 supports bidirectional count and shift directions, meaning data can be shifted left or right under control inputs. It also features a hold mode (Additional Feature: HOLD MODE) that freezes register contents without requiring external gating, adding flexibility to complex sequencing designs.
What package does the SN74S299N3 use and is it RoHS compliant?
The SN74S299N3 is housed in a 20-pin PDIP package (JESD-30 Code R-PDIP-T20), a through-hole dual inline package suitable for prototyping and traditional PCB assembly. Note that this part carries a Pb-free code of No, indicating it is not RoHS lead-free compliant and may require special handling for certain markets.
What are typical applications for the SN74S299N3 shift register?
This device is used in data bus interfacing, serial-to-parallel conversion, pipeline data storage, and multi-bit shift operations in microprocessor systems, DSP boards, and high-speed digital instrumentation. Its 8-bit bidirectional architecture and 50 MHz operation make it effective in any application requiring rapid parallel data capture and serial output or vice versa.
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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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