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Texas Instruments SN74ABT5402ADW
- Part No.:
- SN74ABT5402ADW
- Manufacturer:
- Texas Instruments
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT5402ADW.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,493
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Product details
Overview
SN74ABT5402ADW from Texas Instruments is a 12-bit noninverting 3-state line/memory driver with integrated 25-Ω series output resistors, designed for high-density memory address and bus interface applications at 5-V operation. It features dual active-low 3-state enables (OE1, OE2), ±12-mA drive capability per output, and operates across –40°C to 85°C.
For engineers reviewing the SN74ABT5402ADW datasheet, SN74ABT5402ADW pinout, SN74ABT5402ADW application, or SN74ABT5402ADW equivalent, key selection criteria include its 28-pin SOIC (DW) package, 2.5–6.2 ns propagation delay (tPLH/tPHL), low ground bounce (<1 V VOLP), and built-in termination eliminating external resistors in high-speed parallel bus designs.
Technical Context
The SN74ABT5402ADW implements a dual-input AND logic gate for 3-state control: both OE1 and OE2 must be low to enable outputs - any high input forces all 12 Y outputs into high-impedance. Its EPIC-IIB BiCMOS process delivers low power dissipation while maintaining TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V) and robust latch-up immunity (>500 mA per JESD-17).
Each output integrates a matched 25-Ω series resistor to suppress overshoot/undershoot without external components; typical VOLV < 0.5 V and VOLP < 1 V at VCC = 5 V, TA = 25°C. Input and output capacitances are tightly specified (Ci = 3 pF, Co = 8 pF), supporting clean signal integrity in dense PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures compatibility with standard 5-V TTL and CMOS systems without level-shifting. |
| IOL / IOH | ±12 mA - Supports direct drive of multiple TTL loads or stub-loaded transmission lines without buffers. |
| tPLH / tPHL | 2 ns (min) to 6.3 ns (max) at CL = 50 pF - Enables reliable operation in 100+ MHz address/data bus timing windows. |
| Output Series R | 25 Ω (integrated) - Eliminates need for external source termination resistors on PCB traces, reducing BOM count and layout area. |
| IOZH / IOZL | ±10 µA max in 3-state - Minimizes leakage current during bus contention or standby, preserving signal integrity on shared lines. |
| θJA | 78 °C/W (SOIC DW) - Allows thermal design margin up to ~40 mW dissipation at 85°C ambient without forced airflow. |
| VOL / VOH | 0.65 V (max) / 3.35 V (min) at IOL = 8 mA / IOH = –1 mA - Guarantees noise margins >0.4 V under full load for robust logic-level interpretation. |
Pinout & Package
SN74ABT5402ADW is housed in a 28-pin plastic small-outline integrated circuit (SOIC) package (DW), 300-mil body width, with standard JEDEC MO-026AC footprint and gull-wing leads. Pin 1 is located at top-left corner when notch or dot faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–12, 16–27 | Data Inputs (D1–D12) | 12 TTL-compatible inputs accepting 0.8 V / 2 V thresholds; tied directly to memory address or data bus lines. |
| 13, 14 | Output Enables (OE1, OE2) | Active-low AND-gated control: both must be low to enable outputs; pull-up to VCC ensures safe high-Z at power-up. |
| 15, 28 | Outputs (Y1–Y12) | 12 noninverting 3-state outputs with integrated 25-Ω series resistors; drive bidirectional buses or memory address lines. |
| 7, 19 | GND | Dual ground pins reduce ground bounce and improve switching noise immunity in high-speed operation. |
| 20 | VCC | Single 5-V supply pin; decoupling capacitor placement near this pin is critical for stable high-frequency performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 25-Ω Output Resistors | Eliminates external termination components, reduces PCB trace reflections, and simplifies layout for parallel bus interfaces. |
| EPIC-IIB BiCMOS Process | Combines bipolar speed and CMOS low static power: ICC < 50 µA in 3-state, enabling low-power system standby modes. |
| Low Ground Bounce (VOLP) | <1 V typical at VCC = 5 V - Prevents false logic transitions in adjacent channels during simultaneous output switching. |
| Latch-Up Immunity | >500 mA per JESD-17 - Ensures robustness against transient overcurrent events in industrial and computing environments. |
| Wide Operating Temperature | –40°C to +85°C - Qualified for commercial and extended-temperature industrial applications without derating. |
Applications
| Memory Address Buffering | Parallel Bus Transceiver Interface |
|---|---|
|
Use Scenario: Driving 12-bit memory address lines from a microcontroller or ASIC to SRAM or Flash devices with tight timing budgets. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing level translation, fanout expansion, and controlled bus release timing. Use Value: Integrated 25-Ω resistors suppress ringing on long address traces, and sub-6.3 ns propagation delay supports >80 MHz bus clock rates. |
Use Scenario: Bidirectional data path isolation between two 12-bit parallel buses (e.g., CPU ↔ peripheral or FPGA ↔ ADC/DAC). IC Role / Device Role / Timing Role: Direction-controlled 3-state driver enabling time-multiplexed read/write handshaking via OE1/OE2 coordination. Use Value: Dual enable inputs allow precise timing control of bus turn-around; ±12 mA drive handles capacitive loads up to 50 pF per line. |
| High-Density Clock Distribution | Legacy System Bus Expansion |
|
Use Scenario: Distributing a 12-bit clock-enable or strobe signal across multiple memory banks or peripheral controllers. IC Role / Device Role / Timing Role: Low-skew, matched-delay buffer ensuring synchronous activation across distributed endpoints. Use Value: Tight tPLH/tPHL matching (≤0.5 ns variation) minimizes skew between outputs, critical for setup/hold timing closure. |
Use Scenario: Upgrading legacy ISA or PC/104 bus designs requiring additional address/data drivers without redesigning PCB layout. IC Role / Device Role / Timing Role: Pin-compatible upgrade path for older ABT or FCT family drivers with improved noise immunity and drive strength. Use Value: Same 28-pin SOIC (DW) footprint and electrical interface as SN74ABT244/SN74ABT245, enabling drop-in replacement in existing sockets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT244DW | Octal (8-bit), not 12-bit; identical SOIC-20 package; same EPIC-IIB process and 25-Ω outputs. | Suitable only where 8-bit buffering suffices; requires two devices for full 12-bit coverage, increasing board area and power. | Select SN74ABT244DW only if system uses ≤8-bit address/data paths or allows cascaded octal buffers. |
| SN74LVC125ADW | 3.3-V only (1.65–3.6 V); no integrated series resistors; CMOS process; lower drive (±24 mA), higher speed (tPD ≈ 3.5 ns). | Requires level-shifting for 5-V systems; needs external 33-Ω termination; unsuitable for direct 5-V bus interfacing. | Choose SN74LVC125ADW only in pure 3.3-V domains with controlled impedance routing and no 5-V compatibility requirement. |
Compared with SN74ABT244DW and SN74LVC125ADW, the SN74ABT5402ADW uniquely delivers 12-bit single-package buffering at 5 V with built-in termination - eliminating layout complexity and component count in legacy and industrial memory interface designs.
Availability
SN74ABT5402ADW is available at Aetrix Electronics and suitable for memory address buffering, parallel bus transceivers, high-density clock distribution, and legacy system bus expansion requiring stable component supply and long-term industrial availability.
Supply support for SN74ABT5402ADW 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 specializing in analog, embedded processing, and logic solutions, with decades of expertise in high-reliability interface and bus technologies.
The SN74ABT5402ADW belongs to TI's ABT logic family - engineered for high-speed, low-noise 5-V bus interfacing in memory subsystems, industrial controllers, and computing infrastructure where signal integrity and pin efficiency are critical.
FAQ
What is the operating temperature range for the SN74ABT5402ADW?
The SN74ABT5402ADW is characterized for operation from –40°C to +85°C, meeting industrial-grade environmental requirements. This range is explicitly defined in the datasheet's Recommended Operating Conditions table and validated across production lots. The SN74ABT5402ADW does not support extended military or automotive temperature grades - those are reserved for the SN54ABT5402A variant.
Does the SN74ABT5402ADW require external termination resistors?
No, the SN74ABT5402ADW does not require external termination resistors. Each output integrates a matched 25-Ω series resistor, as confirmed in the datasheet's "Output Ports Have Equivalent 25-Ω Series Resistors" feature statement and verified in the Electrical Characteristics table. This design eliminates PCB space and BOM cost associated with discrete resistors while reducing signal reflections on parallel bus traces.
How are the 3-state outputs controlled on the SN74ABT5402ADW?
The SN74ABT5402ADW uses a dual active-low AND-gated enable structure: both OE1 and OE2 must be driven low to activate the 12 outputs. If either OE1 or OE2 is high, all outputs enter high-impedance state. This is documented in the FUNCTION TABLE and logic diagram. For safe power-up behavior, TI recommends tying OE1 and OE2 to VCC via pullup resistors - minimum value determined by driver sink capability.
What package type and dimensions does the SN74ABT5402ADW use?
The SN74ABT5402ADW uses a 28-pin SOIC (DW) package per JEDEC MO-026AC, with 300-mil body width, 1.27-mm lead pitch, and gull-wing leads. Package dimensions are fully specified in TI's DW package drawing and confirmed in the Packaging Information addendum: 12.7 mm width, 506.98 mm tube length, and Level-1 moisture sensitivity rating (260°C peak reflow).
Is the SN74ABT5402ADW pin-compatible with other ABT-family drivers?
The SN74ABT5402ADW is not pin-compatible with octal ABT drivers like SN74ABT244DW (SOIC-20) or SN74ABT245DW (SOIC-20), due to differing pin count and function mapping. However, it shares the same 28-pin SOIC (DW) footprint and electrical interface as SN74ABT541DW (12-bit inverting version), enabling mechanical compatibility in socketed designs where inversion logic is acceptable.
SN74ABT5402ADW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 12
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
SN74ABT5402ADW FAQ
1.How can I place an order for SN74ABT5402ADW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT5402ADW 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 SN74ABT5402ADW reliable?
The price and inventory of SN74ABT5402ADW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT5402ADW is usually 5 days.
3.What payment methods are accepted for SN74ABT5402ADW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT5402ADW transactions.
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4.How is shipping managed for SN74ABT5402ADW?
SN74ABT5402ADW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT5402ADW 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 SN74ABT5402ADW?
For technical support, including SN74ABT5402ADW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT5402ADW requirements.
6.How does Aetrix verify that SN74ABT5402ADW is sourced from the original manufacturer or authorized distributors?
All SN74ABT5402ADW 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 SN74ABT5402ADW meets industry standards.
7.What is the process for return or replacement of SN74ABT5402ADW?
All SN74ABT5402ADW units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT5402ADW, 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 SN74ABT5402ADW part is unused and in its original packaging.
Return procedure for SN74ABT5402ADW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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