My Inquiry
My Account
Texas Instruments SN74AS760NS
- Part No.:
- SN74AS760NS
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SN74AS760NS.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:974
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AS760NS from Texas Instruments is an octal buffer/line driver with open-collector outputs, designed for memory address bus driving and clock distribution in TTL-compatible systems. It features dual 4-bit non-inverting channels, symmetrical active-low output-enable (OE) inputs, pnp input structure for reduced DC loading, and operates at 4.5–5.5 V over 0°C to 70°C.
For engineers reviewing the SN74AS760NS datasheet, SN74AS760NS pinout, SN74AS760NS application, or SN74AS760NS equivalent, this page delivers verified electrical specs, package mapping to SOP-20 (NS), timing behavior under 50 pF load, and real-world use cases in bus interfacing and address register buffering.
Technical Context
This device implements two independent 4-bit non-inverting buffer sections, each controlled by its own active-low OE input (1OE and 2OE). Its open-collector outputs allow wired-AND logic and direct interface to higher-voltage buses without level-shifting.
The pnp input stage reduces input current draw versus standard TTL, lowering system power and easing fanout requirements. Propagation delays are specified from A-to-Y (1–6 ns) and OE-to-Y (1–7 ns) under 50 pF capacitive load and 500 Ω pull-up, supporting high-speed bus control in legacy computing and industrial control backplanes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V TTL logic rails and noise margin compliance. |
| Operating Temperature | 0°C to 70°C - Qualified for commercial-grade embedded and industrial control applications. |
| Low-Level Output Current (IOL) | 64 mA per output - Supports robust drive into heavy bus loads or multiple TTL inputs. |
| Propagation Delay (tPHL, A→Y) | 1 ns min / 6 ns max - Enables sub-10 ns bus cycle timing in address/data path critical paths. |
| Input Voltage Thresholds | VIH = 2 V, VIL = 0.8 V - Matches standard TTL logic levels for seamless integration with legacy systems. |
| Output Structure | Open-collector - Allows wired-AND configuration, level translation via external pull-up, and bus arbitration. |
| ICC (Outputs Low) | 60–94 mA - Reflects total supply current under full output sink conditions; informs power budgeting. |
Pinout & Package
SOP-20 (NS) package: 20-pin small-outline plastic package with 0.635 mm pitch, 7.5 mm body width, and 2.65 mm max height. RoHS-compliant, NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Active-low output enable | Independent control of each 4-bit section; low enables outputs, high forces high-impedance state. |
| 1A1–1A4, 2A1–2A4 | Input signals | Eight buffered data inputs across two groups; pnp inputs minimize DC loading on driving sources. |
| 1Y1–1Y4, 2Y1–2Y4 | Open-collector outputs | Eight open-drain outputs; require external pull-up for logic HIGH; support wired-AND and bus sharing. |
| VCC, GND | Power supply terminals | Single 5 V supply rail; decoupling recommended near pins 10 (GND) and 20 (VCC) for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Eliminates 3-state overlap protection | Open-collector architecture removes need for timing-critical OE sequencing between adjacent drivers on shared buses. |
| pnp input structure | Reduces input current to ≤20 µA (IIH) and −1 mA (IIL), lowering source loading and enabling higher fanout. |
| Dual independent OE controls | Enables selective activation of upper/lower 4-bit sections-ideal for segmented address or data bus control. |
| High sink current capability | 64 mA per output supports direct drive of multiple TTL loads or termination resistors without external buffers. |
| TTL-compatible voltage thresholds | VIH = 2 V and VIL = 0.8 V ensure reliable interfacing with legacy 74LS, 74ALS, and microprocessor address/data buses. |
Applications
| Memory Address Bus Driver | Clock Distribution Buffer |
|---|---|
Use Scenario: Driving 16-bit address lines from a microprocessor to multiple memory ICs on a shared bus. IC Role / Device Role / Timing Role: Non-inverting octal buffer with independent OE control per 4-bit group, providing isolation and current gain. Use Value: Eliminates need for external 3-state timing coordination; 64 mA sink per output ensures stable logic LOW under loaded bus conditions. |
Use Scenario: Distributing a master clock signal to multiple peripheral controllers while maintaining edge integrity. IC Role / Device Role / Timing Role: Low-skew, open-collector clock buffer enabling wired-OR fanout and level translation via pull-up resistor. Use Value: 1–6 ns propagation delay and 1–7 ns enable/disable times support ≤100 MHz clock distribution in legacy systems. |
| Industrial Backplane Interface | Legacy System Bus Arbiter |
Use Scenario: Interfacing PLC I/O modules to a central controller over a 24 V tolerant backplane using open-collector signaling. IC Role / Device Role / Timing Role: Level-translating bus driver with 5 V logic inputs and externally pulled-up outputs compatible with 12–24 V bus voltages. Use Value: Open-collector outputs tolerate up to 7 V off-state voltage, enabling safe interface to higher-voltage industrial backplanes. |
Use Scenario: Managing shared data bus access among multiple DMA controllers using wired-AND arbitration logic. IC Role / Device Role / Timing Role: Wired-AND-capable octal driver allowing multiple devices to assert bus control simultaneously without contention. Use Value: Eliminates risk of bus contention during transition periods; pnp inputs reduce arbitration logic loading and improve timing margins. |
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 |
|---|---|---|---|
| SN74AS244N | Same AS family, but with totem-pole (not open-collector) outputs and different pinout; lacks wired-AND capability. | Used where push-pull drive and strict 3-state control are required instead of bus-wiring flexibility. | Select SN74AS244N only if open-collector functionality is unnecessary and PCB layout allows pinout change. |
| SN74ALS760N | ALS-family variant: lower ICC (20–32 mA vs. 60–94 mA), slower speed (tPHL up to 12 ns), and reduced IOL (24 mA). | Better suited for low-power, cost-sensitive designs where 64 mA sink and sub-7 ns delay are not required. | Choose SN74ALS760N when power efficiency outweighs speed and drive strength needs; verify bus loading compatibility. |
Compared with SN74AS760NS, SN74AS244N offers push-pull outputs but no wired-AND support, while SN74ALS760N trades performance for lower power-making SN74AS760NS optimal for high-drive, bus-arbitrated legacy systems requiring precise timing and robust sink capability.
Availability
SN74AS760NS is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, industrial backplane interfacing, and legacy bus arbitration requiring stable component supply and long-term obsolescence management.
Supply support for SN74AS760NS 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 global semiconductor leader founded in 1930, delivering analog, embedded processing, and logic solutions across industrial, automotive, and communications markets.
SN74AS760NS belongs to TI's 74AS logic family-engineered for high-speed, high-drive TTL-compatible applications in legacy computing, test equipment, and industrial control systems where reliability and timing precision are critical.
FAQ
What is the maximum sink current per output of the SN74AS760NS?
The SN74AS760NS supports up to 64 mA of low-level output current (IOL) per open-collector output when VCC = 4.5 V and VOL ≤ 0.55 V. This rating enables direct drive of multiple TTL inputs or termination resistors on shared buses without external amplification. The SN74AS760NS maintains this performance across its full operating temperature range of 0°C to 70°C.
Does the SN74AS760NS support wired-AND logic connections?
Yes, the SN74AS760NS supports wired-AND logic through its open-collector outputs. When multiple outputs are tied together with a single pull-up resistor, the net output is LOW if any driver asserts LOW-enabling bus arbitration and priority encoding. This eliminates the need for external logic gates and simplifies inter-device coordination in shared-bus architectures using the SN74AS760NS.
What is the propagation delay from input to output for the SN74AS760NS?
The SN74AS760NS exhibits a typical propagation delay of 3–6 ns (tPHL) and 3–18.5 ns (tPLH) from input (A) to output (Y), measured under VCC = 4.5–5.5 V, CL = 50 pF, RL = 500 Ω, and TA = 0°C to 70°C. These values reflect worst-case timing for design margining in high-speed address and clock distribution paths using the SN74AS760NS.
Can the SN74AS760NS operate with a 3.3 V supply?
No, the SN74AS760NS is not rated for 3.3 V operation. Its absolute maximum supply voltage is 7 V, but recommended operating VCC is strictly 4.5–5.5 V. Input thresholds (VIH = 2 V, VIL = 0.8 V) and output characteristics assume 5 V rail compliance. Using 3.3 V may result in undefined logic states, excessive VOL, or failure to meet timing specs for the SN74AS760NS.
What package type does the SN74AS760NS use, and is it RoHS compliant?
The SN74AS760NS uses the SOP-20 (NS) package: a 20-pin small-outline plastic package with 0.635 mm pitch and 7.5 mm body width. It is RoHS compliant with NIPDAU lead finish and MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH), making it suitable for modern automated assembly processes without special handling requirements for the SN74AS760NS.
SN74AS760NS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AS
- Package/Case:
- 20-SOIC (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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-SO
SN74AS760NS FAQ
1.How can I place an order for SN74AS760NS through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AS760NS 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 SN74AS760NS reliable?
The price and inventory of SN74AS760NS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AS760NS is usually 5 days.
3.What payment methods are accepted for SN74AS760NS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AS760NS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AS760NS?
SN74AS760NS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AS760NS 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 SN74AS760NS?
For technical support, including SN74AS760NS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AS760NS requirements.
6.How does Aetrix verify that SN74AS760NS is sourced from the original manufacturer or authorized distributors?
All SN74AS760NS 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 SN74AS760NS meets industry standards.
7.What is the process for return or replacement of SN74AS760NS?
All SN74AS760NS units undergo pre-shipment inspection (PSI). If there is an issue with SN74AS760NS, 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 SN74AS760NS part is unused and in its original packaging.
Return procedure for SN74AS760NS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AS760NS Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
