SN74ALS245ADWIn StockTexas Instruments
SN74ALS245ADW is an 8-bit bidirectional bus transceiver from Texas Instruments, featuring ALS logic family, 5V operation, 20-pin SOIC package with direction control. From $0.455 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALS245ADW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4550(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 bidirectional bus transceiver with common direction control for flexible data flow management
- ALS (Advanced Low-power Schottky) logic family offering high-speed performance with reduced power consumption
- 5V operation with 50pF load capacitance and 24mA output sink current for robust bus driving
- 20-pin SOIC (Small Outline IC) package enabling compact PCB layouts in space-constrained designs
- Non-inverting signal path preserves data integrity across bidirectional bus interfaces
Applications
The SN74ALS245ADW is widely used in microprocessor and microcontroller bus buffering applications where bidirectional data transfer between different bus segments is required. It serves as an interface buffer in industrial control systems, data communication equipment, and embedded systems to isolate and drive 8-bit data buses. The device is also commonly deployed in memory expansion circuits and peripheral interface designs requiring reliable high-speed signal level translation.
Specifications
| YTEOL | 0 |
| Additional Feature | WITH DIRECTION CONTROL,84030012A,8403001RA,8403001SA IS DELETED FOR SUBGROUP FIX |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ALS |
| JESD-30 Code | R-PDSO-G20 |
| 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 | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 55mA |
| Prop. Delay@Nom-Sup | 10ns |
| Propagation Delay (tpd) | 10ns |
| 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 | 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) | 30 |
| Package | Small Outline Packages |
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 | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74ALS245ADW:
Bus Transceiver, ALS Series, 8-Func, 8-Bit, True Output, TTL, PDSO20
Bus Transceiver, ALS Series, 8-Func, 8-Bit, Inverted Output, TTL, PDSO20
Frequently Asked Questions
What is the SN74ALS245ADW and what logic family does it belong to?
The SN74ALS245ADW is an 8-bit non-inverting bidirectional bus transceiver from Texas Instruments, part of the ALS (Advanced Low-power Schottky) logic family. It operates at 5V, supports bidirectional data flow with a common direction control pin, and is housed in a 20-pin SOIC package. The ALS family delivers high-speed switching with lower power consumption than standard TTL.
What are the key electrical specifications of the SN74ALS245ADW?
The SN74ALS245ADW operates at 5V supply voltage with a maximum output sink current (Iol) of 24mA and a specified load capacitance (CL) of 50pF. It features a bidirectional count direction with common control, making it suitable for driving heavy bus loads in high-speed digital systems. The JESD-30 package code is R-PDSO-G20, corresponding to a 20-pin SOIC.
What are typical applications for the SN74ALS245ADW?
The SN74ALS245ADW is commonly used in microprocessor bus buffering, memory interface circuits, industrial control systems, and data communication equipment. Its 8-bit bidirectional capability with direction control makes it ideal for isolating data buses between different subsystems, enabling reliable data transfer in embedded designs, PLC systems, and peripheral interface cards.
What package does the SN74ALS245ADW come in and what are its alternatives?
The SN74ALS245ADW comes in a 20-pin SOIC (Small Outline Integrated Circuit) package, designated as R-PDSO-G20 per JESD-30. Compatible alternatives include the SN74ALS245A in DIP package for through-hole applications, as well as equivalent bus transceivers from the 74HCT245 or 74LVCH245 series for different voltage or speed requirements.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.3863 | $1.39 |
| 44+ | $1.1553 | $50.83 |
| 61+ | $0.6469 | $39.46 |
| 70+ | $0.5250 | $36.75 |
| 382+ | $0.4550 | $173.81 |
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