My Inquiry
My Account
Texas Instruments SN74BCT2828BDW
- Part No.:
- SN74BCT2828BDW
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74BCT2828BDW.pdf
- Description:
- BUS DRIVER, BCT/FBT SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:2,375
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74BCT2828BDW from Texas Instruments is a 10-bit inverting bus transceiver with dual 3-state enable inputs (OE1, OE2), BiCMOS logic architecture, 33-Ω integrated series output resistors, and rated for 0°C to 70°C operation. It drives memory address buses or wide data paths with 12 mA sink/source capability per output and supports flow-through pinout for optimized PCB layout.
For engineers reviewing the SN74BCT2828BDW datasheet, SN74BCT2828BDW pinout, SN74BCT2828BDW application, or SN74BCT2828BDW equivalent, key selection criteria include its dual active-low 3-state control, built-in termination, low ICCZ quiescent current (≤6 mA), and SOIC-24 package compatibility with legacy 74-series bus interface designs.
Technical Context
This device implements a dual-gated 3-state control architecture: outputs enter high-impedance when either OE1 or OE2 is high, ensuring fail-safe bus isolation during power-up/down. Each of the ten A→Y channels performs true inversion with propagation delays as low as 0.9 ns (tPHL) at VCC = 5 V.
The BiCMOS process enables TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2 V), rail-to-rail output swing (VOH ≥ VCC−2 V, VOL ≤ 0.5 V at IOL = 12 mA), and integrated 33-Ω series resistors that suppress transmission-line overshoot without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures compatibility with standard 5-V TTL/CMOS systems and tolerates supply ripple. |
| Output Drive | ±12 mA - Sufficient to drive terminated 50-Ω transmission lines or multiple TTL loads without buffering. |
| tPLH / tPHL | 1.3 ns to 6.6 ns - Enables reliable operation in high-speed address/data bus applications up to ~150 MHz. |
| ICCZ (Quiescent) | ≤6 mA - Reduces system standby power vs. bipolar-only equivalents; critical for dense memory interface boards. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2 V - Guarantees robust noise margin and interoperability with 5-V CMOS and TTL logic families. |
| Integrated Termination | 33-Ω series resistor per output - Eliminates need for external source termination, simplifying layout and BOM. |
| ESD Rating | >2000 V HBM - Provides handling robustness during assembly and field service without additional protection. |
Pinout & Package
SN74BCT2828BDW is housed in a 24-pin SOIC (DW) package with 300-mil width, gull-wing leads, and standard JEDEC MO-058 AA footprint. Pin 1 is marked by a beveled corner or laser dot; pin count and spacing comply with IPC-7351B SOIC24_300.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 13 | OE1, OE2 | Active-low 3-state enable inputs - OR'd internally; either high forces all Y outputs into high-Z. |
| 2–11, 14–23 | A1–A10, Y1–Y10 | Inverting data channels - A1→Y1, A2→Y2, ..., A10→Y10; flow-through arrangement minimizes trace crossovers. |
| 12 | GND | Ground reference - Must be low-inductance connection to minimize switching noise coupling. |
| 24 | VCC | Positive supply - Requires local 0.1-µF ceramic decoupling adjacent to pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS Process Technology | Combines bipolar speed and CMOS input impedance to achieve 12 mA drive with <6 mA ICCZ - reduces board-level heat and power supply load. |
| Dual 3-State Enable Logic | OE1 and OE2 are independent active-low inputs with OR function - enables flexible bus arbitration and hot-swap isolation in multi-master systems. |
| Integrated 33-Ω Series Resistors | Embedded on every Y output - eliminates discrete termination resistors, saves 10 placements, and ensures matched impedance across all channels. |
| Flow-Through Pinout | Ax inputs on one side (pins 2–11), Yx outputs on opposite side (pins 14–23), OE/VCC/GND centralized - enables straight-layer routing and reduces vias. |
| Power-Up/Down High-Z Default | Outputs remain high-impedance during VCC ramp - prevents bus contention and data corruption during system reset or brownout conditions. |
Applications
| Memory Address Buffering | Backplane Data Bus Interface |
|---|---|
|
Use Scenario: Buffering 10-bit CPU address lines to multiple memory modules on a shared bus. IC Role / Device Role / Timing Role: Inverting address driver with 3-state control synchronized to memory enable signals. Use Value: Integrated 33-Ω resistors suppress ringing on long traces; flow-through pinout allows direct layer routing without stubs. |
Use Scenario: Interfacing between two 10-bit parallel data buses operating at different voltage domains or timing phases. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional transceiver enabling controlled data handoff between subsystems. Use Value: Dual OE inputs allow precise timing of bus release; low propagation delay (≤6.6 ns) preserves setup/hold margins. |
| Legacy System Bus Expansion | Industrial Control I/O Isolation |
|
Use Scenario: Extending a vintage 74-series data bus in retro-computing or test equipment where space and component count are constrained. IC Role / Device Role / Timing Role: Drop-in replacement for obsolete 74F/B series bus drivers with enhanced drive strength and lower power. Use Value: TTL-compatible thresholds and 5-V operation ensure seamless integration; SOIC-24 footprint matches common PCB footprints. |
Use Scenario: Isolating microcontroller GPIOs from noisy relay or solenoid driver circuits in PLC backplanes. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer with fail-safe high-Z default during MCU reset. Use Value: Power-up high-Z behavior prevents spurious actuation; ±12 mA drive reliably switches optocoupler inputs or small-signal relays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit inverting bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT2828N | AC-family CMOS; no integrated 33-Ω resistors; higher VOH (≥4.4 V), lower ICCZ (≤2 µA); operates at 4.5–5.5 V. | Requires external series termination; better for ultra-low-power or high-noise-margin systems where drive strength is secondary. | Select when lowest static power and maximum noise immunity are prioritized over layout simplicity. |
| SN74LS244N | Bipolar TTL; no 3-state enable gating (single OE); no integrated resistors; lower drive (±15 mA), higher ICCZ (40 mA); 4.75–5.25 V only. | Lacks dual-OE arbitration; higher power draw limits density; requires external termination and tighter VCC regulation. | Select only for strict TTL-legacy compliance where BiCMOS features are unnecessary and thermal budget allows. |
Compared with SN74ACT2828N and SN74LS244N, the SN74BCT2828BDW uniquely balances moderate power (≤6 mA ICCZ), integrated termination, and dual-OE flexibility-making it optimal for space-constrained, high-reliability bus interfaces where layout efficiency and robust signal integrity are critical.
Availability
SN74BCT2828BDW is available at Aetrix Electronics and suitable for memory address buffering, backplane data bus interfacing, legacy system bus expansion, and industrial control I/O isolation requiring stable component supply and long-term design continuity.
Supply support for SN74BCT2828BDW 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, specializing in analog, embedded processing, logic, and power management ICs with global manufacturing and support infrastructure.
The SN74BCT2828BDW belongs to TI's BCT (Bipolar-CMOS Transistor) logic family, engineered specifically for high-speed, low-power bus interface applications in computing, instrumentation, and industrial control systems.
FAQ
What is the operating temperature range for SN74BCT2828BDW?
The SN74BCT2828BDW is characterized for operation from 0°C to 70°C - the commercial temperature grade. This range aligns with standard industrial and computing environments where ambient thermal management is controlled. The SN74BCT2828BDW does not support extended or military temperature ranges; those require the SN54BCT2828A variant.
Does SN74BCT2828BDW require external pull-up or pull-down resistors on its enable inputs?
No - SN74BCT2828BDW OE1 and OE2 inputs are TTL-compatible with defined VIH ≥ 2 V and VIL ≤ 0.8 V, and internal input clamping diodes handle transient excursions. However, unused OE inputs must be actively driven high or low per TI's recommendation; floating enables risk metastability and unintended output states. The SN74BCT2828BDW does not include internal pull resistors.
Can SN74BCT2828BDW drive a 50-Ω transmission line directly?
Yes - each Y output of the SN74BCT2828BDW integrates a 33-Ω series resistor, closely matching typical PCB trace impedances (45–60 Ω). When driving a 50-Ω line, this provides effective source termination, minimizing reflections. For best results, pair with a 50-Ω load at the far end and maintain controlled-impedance routing - no external resistors are needed for the SN74BCT2828BDW.
Is SN74BCT2828BDW pin-compatible with SN74LS244N?
No - although both are 24-pin DIP/SOIC bus drivers, the SN74BCT2828BDW has dual OE inputs (pins 1 and 13), 10 inverting channels (A1–A10 → Y1–Y10), and flow-through pinout, whereas SN74LS244N has single OE (pin 1), eight non-inverting channels, and interleaved A/Y layout. Their pin mappings and logic functions differ; the SN74BCT2828BDW is not a drop-in replacement for SN74LS244N.
What is the maximum output current rating for SN74BCT2828BDW per channel?
The SN74BCT2828BDW is rated for ±12 mA DC output current per Y pin under recommended operating conditions (VCC = 4.5–5.5 V, TA = 0–70°C). This applies to both sourcing (IOH = −12 mA) and sinking (IOL = 12 mA). Exceeding this may cause VOL > 0.5 V or VOH < VCC−2 V, violating TTL logic thresholds - always verify loading against the SN74BCT2828BDW's published electrical characteristics table.
SN74BCT2828BDW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74BCT2828BDW FAQ
1.How can I place an order for SN74BCT2828BDW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74BCT2828BDW 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 SN74BCT2828BDW reliable?
The price and inventory of SN74BCT2828BDW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74BCT2828BDW is usually 5 days.
3.What payment methods are accepted for SN74BCT2828BDW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74BCT2828BDW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74BCT2828BDW?
SN74BCT2828BDW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74BCT2828BDW 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 SN74BCT2828BDW?
For technical support, including SN74BCT2828BDW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74BCT2828BDW requirements.
6.How does Aetrix verify that SN74BCT2828BDW is sourced from the original manufacturer or authorized distributors?
All SN74BCT2828BDW 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 SN74BCT2828BDW meets industry standards.
7.What is the process for return or replacement of SN74BCT2828BDW?
All SN74BCT2828BDW units undergo pre-shipment inspection (PSI). If there is an issue with SN74BCT2828BDW, 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 SN74BCT2828BDW part is unused and in its original packaging.
Return procedure for SN74BCT2828BDW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74BCT2828BDW 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…
