SN74ALS621AN Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN74ALS621AN is an 8-channel bidirectional bus transceiver with open-collector outputs and independent output enable for each direction, supporting 50pF load capacitance. From $4.03, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74ALS621AN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.0300(MOQ 1)
- 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 SN74ALS621AN?
- 8-channel bidirectional bus transceiver with independent output enable for each direction
- Open-collector outputs supporting 50pF load capacitance for flexible bus driving
- ALS family logic with dual-in-line 20-pin DIP package for easy PCB integration
- Pb-free (e4) compliant construction meeting RoHS environmental standards
What is SN74ALS621AN used for?
The SN74ALS621AN is widely used in industrial control systems and computing backplanes where bidirectional data bus management between multiple devices is required. Its independent direction control makes it ideal for memory bus interfaces, microprocessor data buses, and multi-master communication architectures. The open-collector outputs allow wired-OR configurations commonly found in embedded systems and legacy digital logic designs.
What are the specifications of SN74ALS621AN?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH INDEPENDENT OUTPUT ENABLE FOR EACH DIRECTION |
| Control Type | INDEPENDENT CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ALS |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | OPEN-COLLECTOR |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 47mA |
| Prop. Delay@Nom-Sup | 33ns |
| Propagation Delay (tpd) | 33ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the SN74ALS621AN datasheet?
SN74ALS621AN Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALS621AN?
Compatible alternatives and drop-in replacements for SN74ALS621AN:
Frequently Asked Questions
What is the SN74ALS621AN and what are its key electrical specifications?
The SN74ALS621AN is an 8-channel bidirectional bus transceiver from Texas Instruments' ALS logic family. It features open-collector outputs, supports a load capacitance of 50pF, and provides independent output enable control for each data direction, making it suitable for high-drive bus applications.
What package does the SN74ALS621AN come in and what are its dimensions?
The SN74ALS621AN is housed in a 20-pin dual-in-line (PDIP) through-hole package (JESD-30 code R-PDIP-T20). This classic DIP format is ideal for prototyping and breadboard use, as well as production PCB applications requiring reliable through-hole soldering.
What are typical applications for the SN74ALS621AN?
The SN74ALS621AN is commonly used in microprocessor data bus interfaces, memory subsystems, industrial backplane communication, and multi-master bus architectures. Its bidirectional capability with independent direction control allows seamless data transfer between different system sections.
Is the SN74ALS621AN Pb-free and RoHS compliant?
Yes, the SN74ALS621AN carries a Pb-free code of 'Yes' and a JESD-609 code of e4, confirming it meets RoHS environmental compliance requirements and is manufactured without lead-containing materials.
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Why Buy from FindMyChip
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+ | $6.9804 | $6.98 |
| 2+ | $5.8170 | $11.63 |
| 5+ | $5.1190 | $25.59 |
| 500+ | $4.5400 | $2270.00 |
| 1000+ | $4.2800 | $4280.00 |
| 10000+ | $4.0300 | $40300.00 |
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