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Texas Instruments SN74BCT760DWRG4
- Part No.:
- SN74BCT760DWRG4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74BCT760DWRG4.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,486
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Product details
Overview
SN74BCT760DWRG4 from Texas Instruments is an octal buffer/driver IC with open-collector outputs, organized as two independent 4-bit sections, each with dedicated output-enable (OE) control. It operates at 4.5–5.5 V, delivers 64 mA low-level output current, supports 0°C to 70°C industrial temperature range, and drives bus lines or memory address registers in TTL-compatible systems.
For engineers reviewing the SN74BCT760DWRG4 datasheet, SN74BCT760DWRG4 pinout, SN74BCT760DWRG4 application, or SN74BCT760DWRG4 equivalent, key selection criteria include open-collector drive capability, dual 4-bit enable control, 10 ns typical propagation delay, 6 pF input capacitance, and SOIC-20 package compatibility with standard PCB assembly processes.
Technical Context
The SN74BCT760DWRG4 implements two independent 4-bit non-inverting buffer sections, each with active-low output-enable (1OE, 2OE) controlling high-impedance or driven states. Its open-collector outputs require external pull-up resistors and support wired-AND logic and bus arbitration.
It uses bipolar BCT (Bipolar CMOS-TTL) technology for TTL-input compatibility and higher drive strength than standard TTL. The device meets MIL-STD-883C ESD protection (>2000 V), supports 50 pF load capacitance, and exhibits tPLH/tPHL of 6.3–10 ns and 2.1–7.2 ns respectively under 5 V/25°C conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation with standard 5 V TTL/CMOS rails and margin against supply droop. |
| Output Drive Current (IOL) | 64 mA per output - Sufficient to sink multiple TTL inputs or drive 50 Ω transmission lines with termination. |
| Propagation Delay (tPLH/tPHL) | 6.3–10 ns / 2.1–7.2 ns - Enables reliable timing in high-speed address/data bus applications up to ~50 MHz. |
| Input Capacitance (Ci) | 6 pF - Minimizes loading on upstream drivers and preserves signal integrity in fan-out-critical designs. |
| Operating Temperature | 0°C to 70°C - Qualified for commercial and industrial ambient environments without derating. |
| ESD Protection | >2000 V HBM - Provides robust handling tolerance during board assembly and system integration. |
| Output Type | Open-collector - Allows wired-AND bus configurations, level translation via external pull-up, and interface with mixed-voltage systems. |
Pinout & Package
SN74BCT760DWRG4 is housed in a 20-pin SOIC (DW) package, 7.5 mm wide, 12.8 mm long, 2.65 mm max height, RoHS-compliant with NiPdAu lead finish and moisture sensitivity level (MSL) 1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Active-low output-enable inputs | Independently disable each 4-bit section into high-Z state; critical for bus sharing and power gating. |
| 1A1–1A4, 2A1–2A4 | Buffer input terminals | Eight TTL-compatible digital inputs accepting 0.8 V (VIL) and 2 V (VIH) thresholds; no internal pull-ups. |
| 1Y1–1Y4, 2Y1–2Y4 | Open-collector outputs | Eight sinking-only outputs requiring external pull-up; support wired-logic and voltage-level flexibility. |
| VCC (Pin 20) | Positive supply | 5 V nominal supply connection; decoupling capacitor placement near this pin is mandatory for noise immunity. |
| GND (Pin 10) | Ground reference | Common return path for all inputs, outputs, and internal circuitry; must be low-impedance and star-connected. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 4-bit independent enable control | Enables selective activation of address/data segments without affecting other bus sections - reduces contention and dynamic power. |
| 64 mA output sink capability | Drives up to 16 standard TTL loads or interfaces directly with 50 Ω transmission lines - eliminates need for external driver stages. |
| 6 pF input capacitance | Minimizes capacitive loading on clock or address drivers - preserves edge rate and timing margins in dense layouts. |
| TTL-compatible input thresholds | Accepts standard 0.8 V/2.0 V logic levels - ensures interoperability with legacy 74LS/74F and modern microcontroller GPIOs. |
| Open-collector architecture | Supports multi-drop bus topologies, level shifting via pull-up voltage selection, and fault-tolerant wired-AND arbitration. |
Applications
| Memory Address Buffering | Bus Line Driving |
|---|---|
Use Scenario: Buffering 16-bit address bus between microprocessor and SRAM/ROM in embedded control systems. IC Role / Device Role / Timing Role: Non-inverting octal buffer providing isolation, fan-out expansion, and timing-controlled enable gating for address latching. Use Value: Prevents address skew across memory devices and enables simultaneous access to multiple memory banks using OE-controlled segmentation. | Use Scenario: Driving shared data bus among multiple peripherals (UART, SPI, GPIO expanders) in industrial PLC backplane. IC Role / Device Role / Timing Role: Open-collector bus driver enabling wired-AND arbitration and bidirectional communication without direction control pins. Use Value: Eliminates need for bus transceivers; allows any peripheral to assert bus signals while others remain high-Z, reducing component count and layout complexity. |
| Legacy System Interface | TTL-to-5 V Logic Translation |
Use Scenario: Interfacing vintage TTL-based instrumentation (e.g., 74LS138 decoder) with modern 5 V microcontrollers. IC Role / Device Role / Timing Role: Level-shifting buffer maintaining TTL input compatibility while driving 5 V CMOS loads with sufficient sink current. Use Value: Resolves voltage threshold mismatch and provides 64 mA drive to overcome legacy fan-out limitations without adding discrete transistors. | Use Scenario: Converting 3.3 V FPGA I/O outputs to drive 5 V relay drivers or optocouplers requiring TTL-level inputs. IC Role / Device Role / Timing Role: Open-collector translator using 5 V pull-up to shift logic high from 3.3 V to 5 V while preserving signal polarity and timing. Use Value: Achieves safe, rail-to-rail level translation without level-shifter ICs or resistor dividers - simplifies BOM and improves noise immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal open-collector buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LS366N | Lower drive (24 mA), higher ICC (48 mA), slower propagation (25 ns), same SOIC-20 footprint but TTL-only inputs. | Limited to legacy 5 V TTL systems; unsuitable for mixed-voltage or high-fan-out bus driving. | Select when cost is primary constraint and drive/speed requirements are relaxed. |
| SN74LV244APWR | 3.3 V optimized, push-pull outputs, 16 mA drive, 3.3 V only supply, no open-collector functionality. | Requires external pull-up for wired-AND; incompatible with 5 V bus termination or TTL input thresholds. | Choose only for 3.3 V-only systems where open-collector behavior is not required. |
Compared with SN74LS366N and SN74LV244APWR, SN74BCT760DWRG4 uniquely combines 5 V TTL compatibility, 64 mA sink drive, dual independent OE control, and true open-collector architecture - making it irreplaceable for robust, high-drive bus interfacing in industrial and legacy-compatible designs.
Availability
SN74BCT760DWRG4 is available at Aetrix Electronics and suitable for memory address buffering, bus line driving, legacy system interface, TTL-to-5 V logic translation, and industrial backplane applications requiring stable component supply and long-term manufacturability.
Supply support for SN74BCT760DWRG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor company founded in 1930, delivering analog and embedded processing solutions across automotive, industrial, personal electronics, and communications markets.
The SN74BCT760DWRG4 belongs to TI's legacy BCT logic family, designed specifically to enhance performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in 5 V systems.
FAQ
What is the maximum output sink current specification for SN74BCT760DWRG4?
The SN74BCT760DWRG4 is rated for 64 mA low-level output current (IOL) per channel under recommended operating conditions (VCC = 4.5 V, TA = 0°C to 70°C). This value is confirmed in the "Recommended Operating Conditions" table of the SCBS034B datasheet and reflects its capability to drive heavy TTL loads or terminated transmission lines without external amplification. Exceeding this current risks thermal overstress or parameter shift.
Does SN74BCT760DWRG4 support 3.3 V logic inputs?
No, SN74BCT760DWRG4 does not guarantee reliable operation with 3.3 V logic inputs. Its input thresholds are specified for TTL compatibility: VIL = 0.8 V max and VIH = 2.0 V min at VCC = 5 V. A 3.3 V logic high may fall below the guaranteed VIH margin, risking metastability or incorrect recognition. For 3.3 V–5 V interfacing, use a level shifter or select a 5 V-tolerant input device - SN74BCT760DWRG4 itself requires ≥2 V input high for guaranteed switching.
What is the pin 1 marking and orientation for SN74BCT760DWRG4 in SOIC-20 package?
SN74BCT760DWRG4 in the SOIC-20 (DW) package features a molded notch or beveled corner at the top-left corner (when viewed with pins facing downward and text upright), indicating pin 1 location. Per TI's DW0020A package drawing, pin 1 is in quadrant Q1 of the tape-and-reel carrier, and the device marking "BCT760" appears adjacent to pin 1. Board layout must align with JEDEC MS-013 outline and IPC-7351 land pattern recommendations.
Can SN74BCT760DWRG4 replace SN74BCT760DW or SN74BCT760DWR?
Yes, SN74BCT760DWRG4 is a functionally identical, RoHS-compliant, drop-in replacement for SN74BCT760DW and SN74BCT760DWR. All three share identical electrical specifications, pinout, SOIC-20 (DW) package dimensions, and thermal characteristics. The "G4" suffix denotes TI's green packaging standard (lead-free, halogen-free), with NIPDAU lead finish and MSL-1 rating - fully compatible with standard reflow profiles used for DWR/DW variants.
Is SN74BCT760DWRG4 suitable for automotive applications?
No, SN74BCT760DWRG4 is not qualified for automotive applications. It is a catalog-grade device rated for 0°C to 70°C operation and lacks AEC-Q100 qualification, extended temperature screening, or automotive-specific reliability testing. For automotive use, TI offers the SN74BCT760-EP (Enhanced Product) variant, which supports –40°C to 105°C and includes additional burn-in and lot acceptance testing - SN74BCT760DWRG4 must not be deployed in safety-critical or automotive ECUs without formal qualification review.
SN74BCT760DWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74BCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- Open Collector
- Current - Output High, Low:
- -, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
SN74BCT760DWRG4 FAQ
1.How can I place an order for SN74BCT760DWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74BCT760DWRG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74BCT760DWRG4 reliable?
The price and inventory of SN74BCT760DWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74BCT760DWRG4 is usually 5 days.
3.What payment methods are accepted for SN74BCT760DWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74BCT760DWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74BCT760DWRG4?
SN74BCT760DWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74BCT760DWRG4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74BCT760DWRG4?
For technical support, including SN74BCT760DWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74BCT760DWRG4 requirements.
6.How does Aetrix verify that SN74BCT760DWRG4 is sourced from the original manufacturer or authorized distributors?
All SN74BCT760DWRG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74BCT760DWRG4 meets industry standards.
7.What is the process for return or replacement of SN74BCT760DWRG4?
All SN74BCT760DWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74BCT760DWRG4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74BCT760DWRG4 part is unused and in its original packaging.
Return procedure for SN74BCT760DWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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