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Texas Instruments SN74F153DBR
- Part No.:
- SN74F153DBR
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
SN74F153DBR.pdf
- Description:
- MUX 1-ELEMENT BIPOLAR 8-IN
- Quantity:
- Payment:
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Inventory:6,000
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Product details
Overview
SN74F153DBR from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer IC operating at 5 V, featuring two independent 4:1 multiplexing sections with common select inputs (A, B), separate strobe (1G, 2G) controls, and TTL-compatible logic levels. It supports parallel-to-serial conversion and cascading in digital control, address decoding, and signal routing applications.
For engineers reviewing the SN74F153DBR datasheet, SN74F153DBR pinout, SN74F153DBR application, or SN74F153DBR equivalent, key selection criteria include propagation delay (≤12 ns), output drive capability (20 mA sink), commercial temperature range (0°C to 70°C), SOIC-16 package compatibility, and direct replacement suitability for legacy F-series logic designs.
Technical Context
The SN74F153DBR implements two independent 4:1 multiplexer sections sharing select lines A and B, each with dedicated active-low strobe inputs (1G, 2G) enabling section-level enable/disable control. Internal architecture includes binary decoders, AND-OR gating, and buffered outputs-no latching or memory function is present.
It operates strictly as combinational logic: output Y reflects selected input (C0–C3) only when corresponding strobe is low; all outputs go high-impedance (logic high) when strobe is high. No internal pull-ups, level-shifting, or bus-hold circuitry is integrated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Requires stable 5 V rail; operation outside this range risks functional failure or damage. |
| Propagation Delay | tPLH/tPHL ≤ 12 ns (A/B→Y), ≤10.5 ns (G→Y) - Enables reliable operation in systems with clock periods ≥25 ns. |
| Output Drive | IOL = 20 mA (low), IOH = −1 mA (high) - Sinks sufficient current to drive standard TTL loads directly without external buffers. |
| Input Thresholds | VIL = 0.8 V max, VIH = 2.0 V min - Ensures noise margin >0.4 V under worst-case 5 V supply conditions. |
| Operating Temperature | 0°C to 70°C - Qualified for commercial-grade embedded control, instrumentation, and industrial logic boards. |
| Logic Family | F-series TTL - Compatible with 74F logic voltage/current specs; not interoperable with CMOS or LVTTL without level translation. |
Pinout & Package
SN74F153DBR is housed in a 16-pin SOIC (D) package, 7.5 mm wide, with 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, and moisture sensitivity level (MSL) 1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1G, 2G (Strobe) | Active-low enables for Section 1 and Section 2; high = output Y forced high-impedance (not floating). |
| 2, 3 | A, B (Select) | Common binary address inputs selecting C0–C3 per section; no internal debouncing or hysteresis. |
| 4–7, 10–13 | 1C0–1C3, 2C0–2C3 (Data Inputs) | Eight independent TTL-compatible data inputs; no internal termination or ESD protection beyond spec limits. |
| 9, 14 | 2Y, 1Y (Outputs) | Active-high, non-inverted outputs; capable of sourcing −1 mA or sinking 20 mA into TTL loads. |
| 8 | GND | Power ground reference for all logic and I/O; must be low-impedance connection to system ground plane. |
| 16 | VCC | +5 V supply input; requires local 0.1 µF ceramic decoupling capacitor placed within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4:1 multiplexers | Enables two simultaneous data routing paths (e.g., channel A and B selection) using shared address lines-reduces PCB routing complexity. |
| Separate strobe control per section | Allows selective enabling/disabling of either multiplexer section without affecting the other-critical for time-multiplexed bus arbitration. |
| TTL-compatible input/output thresholds | Guarantees interoperability with legacy 74F, 74LS, and 74S logic families without level-shifting components. |
| Low propagation delay (≤12 ns) | Supports synchronous operation up to ~40 MHz in simple combinatorial paths-suitable for address/data switching in microcontroller peripherals. |
| SOIC-16 RoHS-compliant packaging | Enables surface-mount assembly with standard reflow profiles (MSL-1); footprint matches industry-standard 74xx SOIC layouts. |
Applications
| Memory Address Decoding | Microcontroller Peripheral Selection |
|---|---|
|
Use Scenario: Selecting one of four RAM/ROM chips based on upper address bits in an 8-bit microprocessor system. IC Role / Device Role / Timing Role: SN74F153DBR acts as address decoder, translating A1–A2 into chip-select signals while strobes synchronize with MEMR/MEMW timing. Use Value: Eliminates need for discrete gate arrays; reduces decode latency to <12 ns, preserving system timing margins. |
Use Scenario: Routing UART, SPI, or GPIO signals between multiple peripheral ICs and a single microcontroller port. IC Role / Device Role / Timing Role: SN74F153DBR functions as a signal switch, controlled by MCU GPIO pins driving A/B/select and strobes. Use Value: Enables dynamic reconfiguration of I/O mapping without hardware changes-supports firmware-defined peripheral assignment. |
| Digital Test Equipment Signal Routing | Legacy Industrial Control Logic |
|
Use Scenario: Switching calibration reference voltages or sensor inputs into a shared ADC channel in automated test equipment. IC Role / Device Role / Timing Role: SN74F153DBR serves as analog multiplexer front-end driver, conditioning TTL-level select signals before analog switching stages. Use Value: Provides precise, low-jitter digital control of analog path selection-ensures repeatable measurement sequencing. |
Use Scenario: Replacing obsolete 74S153 or 74LS153 in maintenance of aging PLC I/O modules and relay logic panels. IC Role / Device Role / Timing Role: SN74F153DBR substitutes as drop-in-compatible logic element maintaining identical pinout, timing, and drive strength. Use Value: Restores functionality without board redesign-preserves existing firmware, timing budgets, and interconnect integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LS153N | Slower propagation (22 ns max), lower drive (8 mA sink), higher ICC (19 mA), same pinout and logic function. | Acceptable where speed <20 MHz and power budget allows higher static current; not suitable for high-speed timing-critical paths. | Choose for cost-sensitive, low-speed legacy replacements where SN74F153DBR's speed or drive is unnecessary. |
| SN74HC153DR | CMOS family: wider VCC range (2–6 V), lower ICC (<8 µA), slower at 5 V (21 ns), 4 mA drive, different input thresholds. | Requires level-shifting if interfacing with TTL-only systems; unsuitable for direct 74F/74LS replacement without validation. | Choose only when migrating to CMOS-based designs with flexible supply rails and relaxed timing requirements. |
Compared with SN74LS153N and SN74HC153DR, the SN74F153DBR delivers optimal balance of speed, drive strength, and TTL compatibility for maintaining or upgrading F-series logic systems-neither alternative matches its 12 ns / 20 mA performance at 5 V without design trade-offs.
Availability
SN74F153DBR is available at Aetrix Electronics and suitable for industrial control panels, legacy test equipment upgrades, and microcontroller-based peripheral interface designs requiring stable component supply and long-term obsolescence mitigation.
Supply support for SN74F153DBR 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, specializing in analog, embedded processing, and logic solutions with broad industrial, automotive, and communications reach.
The SN74F153DBR belongs to TI's 74F TTL logic family, engineered for high-speed digital control in commercial-grade systems where reliability, timing precision, and backward compatibility with legacy 74xx designs are essential.
FAQ
What is the maximum clock frequency supported by SN74F153DBR in a multiplexing application?
The SN74F153DBR has no internal clock-it is purely combinational logic. Its usable switching rate depends on propagation delay (≤12 ns) and system setup/hold timing. In practice, it reliably supports data selection rates up to 40 MHz when driven by clean, properly timed control signals and loaded with standard TTL inputs.
Can SN74F153DBR operate with a 3.3 V supply?
No. The SN74F153DBR is specified only for 4.5 V to 5.5 V operation. Applying 3.3 V violates recommended operating conditions and results in undefined logic thresholds, increased propagation delay, and potential output contention. Use SN74LVC153 or similar 3.3 V logic for that voltage domain.
Does SN74F153DBR include ESD protection diodes on its inputs?
The SN74F153DBR meets ANSI/IEC 61000-4-2 Level 2 (4 kV contact) ESD immunity per TI characterization, but does not integrate explicit input protection diodes. External transient suppression is recommended in noisy industrial environments where input pins may be exposed to >2 kV transients.
Is SN74F153DBR pin-compatible with SN74F153DR?
Yes. Both SN74F153DBR and SN74F153DR use identical SOIC-16 (D) packages with identical pinout, electrical specifications, and thermal characteristics. The "B" suffix denotes tape-and-reel packaging (2500 pcs/reel), while "R" indicates standard reel-functionally interchangeable.
How does the strobe (G) input affect output behavior on SN74F153DBR?
When either 1G or 2G is high, the corresponding output (1Y or 2Y) is forced to a high-impedance state-not logic high. This allows wired-OR bus configurations. When G is low, the output reflects the selected C0–C3 input per A/B state. No internal pull-up exists; external termination is required if high-Z state is used.
SN74F153DBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74F153DBR FAQ
1.How can I place an order for SN74F153DBR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74F153DBR 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 SN74F153DBR reliable?
The price and inventory of SN74F153DBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74F153DBR is usually 5 days.
3.What payment methods are accepted for SN74F153DBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74F153DBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74F153DBR?
SN74F153DBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74F153DBR 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 SN74F153DBR?
For technical support, including SN74F153DBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74F153DBR requirements.
6.How does Aetrix verify that SN74F153DBR is sourced from the original manufacturer or authorized distributors?
All SN74F153DBR 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 SN74F153DBR meets industry standards.
7.What is the process for return or replacement of SN74F153DBR?
All SN74F153DBR units undergo pre-shipment inspection (PSI). If there is an issue with SN74F153DBR, 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 SN74F153DBR part is unused and in its original packaging.
Return procedure for SN74F153DBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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