SN74AS245DWRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74AS245DWRG4 is an octal bus transceiver from Texas Instruments featuring bidirectional data transfer with direction control. Built on the AS logic family, it supports 20-pin SOIC packaging with 50 pF load capacitance and 48 mA output sink current. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74AS245DWRG4 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
- Octal bidirectional bus transceiver with common direction control for flexible data routing
- High-speed AS-series logic family ensuring fast propagation delays suitable for time-critical bus applications
- 20-pin Small Outline Package (SOIC) enabling compact PCB layouts with industry-standard footprint
- 48 mA output sink current capability for driving heavily loaded bus lines reliably
Applications
The SN74AS245DWRG4 is ideal for microprocessor data bus buffering in embedded systems and industrial control boards where bidirectional data flow between subsystems is required. It suits memory expansion circuits and backplane interfaces in high-speed digital equipment. The device also fits communication protocol bridges and signal-level matching applications across multi-board systems.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | WITH DIRECTION CONTROL,84030012A,8403001RA,8403001SA IS DELETED FOR SUBGROUP FIX |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | AS |
| JESD-30 Code | R-PDSO-G20 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.048A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| 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 | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 58mA |
| Prop. Delay@Nom-Sup | 10ns |
| Propagation Delay (tpd) | 7.5ns |
| Qualification Status | Not Qualified |
| 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 Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| 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 supply voltage and output sink current for the SN74AS245DWRG4?
The SN74AS245DWRG4 operates on a 5 V supply as part of the AS logic family. Its maximum output low current (I_OL) is 48 mA, making it suitable for driving moderate-to-heavy bus loads without external buffers.
How does the direction control work on the SN74AS245DWRG4?
The device features a common direction (DIR) pin that selects the data transfer direction for all eight channels simultaneously. When DIR is high, data flows from the A bus to the B bus; when low, data flows from B to A. This simplifies control logic in bidirectional bus designs.
What package does the SN74AS245DWRG4 use and what is its pin count?
The SN74AS245DWRG4 uses a 20-pin Small Outline Package (SOIC) with a wide-body JEDEC MS-013 footprint. The 'DW' suffix in the part number indicates the wide SOIC package, which provides better thermal performance and ease of hand-soldering compared to narrow SOIC variants.
Can the SN74AS245DWRG4 be used in 3.3 V systems?
No. The SN74AS245DWRG4 is an AS-family device designed for 5 V operation. For 3.3 V or mixed-voltage applications, consider Texas Instruments' LVC or LVT series bus transceivers such as the SN74LVC245A, which support lower supply voltages.
Is the SN74AS245DWRG4 RoHS compliant?
According to the available product data, the Pbfree Code is listed as 'No', indicating this specific variant is not RoHS-compliant. If lead-free assembly is required, check for an alternative RoHS version in the SN74AS245 family or consult Texas Instruments for a suitable replacement.
Related Guides
EEEFK1E470P Selection Guide for 47 uF SMD Aluminum Electrolytic Capacitors
Selection guidance for EEEFK1E470P and nearby Panasonic FK or FT SMD aluminum electrolytic capacitors for power-rail bulk decoupling.
Jul 7, 2026
EEEFT1V101AP Design Guide for SMD Aluminum Electrolytic Bulk Decoupling
Design guidance for using EEEFT1V101AP as an SMD aluminum electrolytic bulk capacitor in power-rail decoupling and hold-up networks.
Jul 7, 2026
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”