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NXP Semiconductors CBTS3253D,112
- Part No.:
- CBTS3253D,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CBTS3253D,112.pdf
- Description:
- IC MUX/DEMUX 2 X 4:1 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,545
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Product details
Overview
CBTS3253D,112 from NXP Semiconductors (formerly Philips) is a dual 1-of-4 TTL-compatible FET multiplexer/demultiplexer with Schottky diode clamping, 5 Ω on-resistance, 0.25 ns typical propagation delay, and operation from –40 °C to +85 °C. It routes two independent A-inputs to one of four B-outputs per channel under S0/S1 control, used in high-speed digital signal routing for test equipment and logic-level translation.
For engineers reviewing the CBTS3253D,112 datasheet, CBTS3253D,112 pinout, CBTS3253D,112 application, or CBTS3253D,112 equivalent, key selection criteria include on-resistance matching, TTL-compatible input thresholds, ESD robustness (2000 V HBM), and SO16 package compatibility with legacy 5 V logic systems.
Technical Context
The CBTS3253D,112 implements two independent bidirectional analog/digital switches using low-threshold FETs, enabling transparent signal pass-through without added propagation delay or ground bounce. Its internal Schottky diodes clamp I/O undershoot to –1.2 V, protecting downstream logic during fast edge transitions.
Control logic uses active-low 1OE/2OE enables and binary S0/S1 select lines to determine output path mapping. The device operates strictly within 4.5 V to 5.5 V supply range and requires all unused inputs tied to VCC or GND to prevent floating node instability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 5 Ω typical at VCC = 4.5 V - ensures minimal voltage drop and signal attenuation across switched paths |
| Propagation delay | 0.25 ns minimum, 6.2 ns maximum - supports sub-nanosecond timing-critical routing in high-speed logic |
| Supply voltage range | 4.5 V to 5.5 V - compatible with standard 5 V TTL and CMOS logic rails |
| Input voltage thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V - guarantees reliable recognition of TTL-level control signals |
| ESD protection | 2000 V HBM, 200 V MM, 1000 V CDM - meets industrial-grade robustness requirements |
| Operating temperature | –40 °C to +85 °C - validated for extended use in industrial and automotive under-hood environments |
| Quiescent current | 3 µA maximum - enables low-power standby in battery-backed or portable systems |
Pinout & Package
CBTS3253D,112 is supplied in a 16-pin plastic small outline (SO) package (SOT109-1), 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output enable for each 1-of-4 channel - disables all B outputs when high |
| 2, 14 | S1, S0 | Binary select inputs determining which B-output connects to A-input (00→B1, 11→B4) |
| 3–6, 10–13 | 1B1–1B4, 2B1–2B4 | Four bidirectional switch outputs per channel - support analog/digital signal routing in either direction |
| 7, 9 | 1A, 2A | Primary bidirectional input/output ports - connect to source signals or loads with no polarity restriction |
| 8 | GND | Ground reference for all internal circuitry and ESD clamps - must be low-impedance connection |
| 16 | VCC | +5 V supply rail - powers internal FET drivers and clamp diodes; bypass capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| 5 Ω on-resistance | Minimizes insertion loss and maintains signal integrity for both analog and digital waveforms up to 100 MHz |
| TTL-compatible inputs | Eliminates need for level-shifting circuitry when interfacing with legacy 5 V microcontrollers and FPGA I/O banks |
| Schottky diode clamping | Clamps negative transients to –1.2 V, preventing latch-up and protecting connected CMOS inputs |
| 2000 V HBM ESD rating | Reduces field failure risk during handling and board assembly in uncontrolled electrostatic environments |
| Low quiescent current | Enables integration into always-on subsystems without impacting system-level power budget |
Applications
| Logic-Level Translation | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Interfacing 3.3 V FPGA I/O with 5 V peripheral logic while preserving signal timing. IC Role / Device Role / Timing Role: Bidirectional level translator and signal router operating at 5 V supply with TTL-compatible thresholds. Use Value: Eliminates discrete resistor-divider networks and avoids timing skew introduced by buffer-based solutions. | Use Scenario: Channel-select switching in high-speed digital pattern generators delivering stimuli to DUT pins. IC Role / Device Role / Timing Role: Low-latency multiplexer enabling sub-ns path selection between stimulus sources and DUT inputs. Use Value: Maintains signal fidelity and edge integrity due to 5 Ω Ron and <6.2 ns tpd, critical for setup/hold compliance. |
| Industrial Control Backplane | Legacy System Signal Multiplexing |
Use Scenario: Routing sensor data from multiple 5 V analog front-ends to a shared ADC input in PLC modules. IC Role / Device Role / Timing Role: Analog-capable FET switch supporting DC to ~100 MHz signals with minimal crosstalk. Use Value: Provides rail-to-rail analog passband and thermal stability over –40 °C to +85 °C operating range. | Use Scenario: Replacing obsolete 74LS153 multiplexers in retrofitted telecom line cards requiring drop-in reliability. IC Role / Device Role / Timing Role: Pin-compatible dual 1-of-4 mux with identical SO16 footprint and function table. Use Value: Enables direct replacement without PCB rework, leveraging same control logic and timing behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FET multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3253DBR | Same 5 Ω Ron, 0.25 ns tpd min, but rated for 4.5–5.5 V only; identical SO16 pinout | Designed for TI's 74CBT family - optimized for 5 V bus switching with tighter AC specs | Preferred for new designs targeting TI ecosystem compatibility and higher-volume procurement |
| 74LVC2G53DP | Lower VCC range (1.65–5.5 V), higher Ron (10 Ω typ), smaller 8-pin TSSOP package | Single-channel only; suited for space-constrained, mixed-voltage systems requiring level shifting | Select when board area is limited or dual-supply operation (e.g., 3.3 V logic driving 5 V loads) is required |
Compared with SN74CBT3253DBR and 74LVC2G53DP, the CBTS3253D,112 offers superior on-resistance and proven industrial temperature stability in a legacy SO16 footprint, making it optimal for long-lifecycle replacements and systems where pin compatibility and thermal margin are prioritized over voltage flexibility.
Availability
CBTS3253D,112 is available at Aetrix Electronics and suitable for automated test equipment, industrial control backplanes, logic-level translation, and legacy system signal multiplexing requiring stable component supply across extended product lifecycles.
Supply support for CBTS3253D,112 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering logic portfolio.
The CBTS3253D,112 belongs to NXP's legacy high-speed TTL-compatible analog switch family, engineered for robust signal routing in industrial and test instrumentation where reliability, low on-resistance, and ESD resilience are critical.
FAQ
What is the maximum continuous current rating for CBTS3253D,112?
The CBTS3253D,112 supports a continuous channel current of 128 mA per switch path, verified under recommended operating conditions (VCC = 4.5 V to 5.5 V, Tamb = –40 °C to +85 °C). This rating applies to both A and B terminals during conduction and assumes proper PCB thermal relief. Exceeding this value risks thermal degradation or permanent on-resistance drift in the CBTS3253D,112.
Does CBTS3253D,112 support bidirectional signal flow?
Yes, the CBTS3253D,112 supports fully bidirectional analog and digital signal routing between its A and B terminals. Each switch channel operates symmetrically - signals applied to 1A appear at selected 1Bx and vice versa, with identical on-resistance (5 Ω typ) and capacitance in both directions. This bidirectional capability is intrinsic to the FET architecture of the CBTS3253D,112 and requires no external biasing.
Can CBTS3253D,112 operate at 3.3 V supply?
No, the CBTS3253D,112 is not specified for 3.3 V operation. Its recommended supply range is strictly 4.5 V to 5.5 V, and absolute maximum VCC is +7.0 V. At 3.3 V, the internal FETs fail to fully enhance, resulting in excessive on-resistance (>20 Ω), unreliable switching, and potential input threshold violations. For 3.3 V systems, consider alternatives like 74LVC2G53DP instead of CBTS3253D,112.
What is the purpose of the Schottky diodes in CBTS3253D,112?
The integrated Schottky diodes in the CBTS3253D,112 provide I/O undershoot clamping, limiting negative transients to –1.2 V (at –64 mA) to protect connected logic inputs from damage. They activate automatically during fast falling edges or ESD events, shunting excess current to GND before voltage drops below safe levels. This feature eliminates the need for external clamping diodes in the CBTS3253D,112 design.
Is CBTS3253D,112 pin-compatible with older 74-series multiplexers?
The CBTS3253D,112 shares the same 16-pin SO package (SOT109-1) and functional pinout as 74LS153 and 74ALS153, including identical 1OE/2OE, S0/S1, and A/B terminal assignments. However, it is not electrically drop-in due to differences in output drive strength and enable logic polarity - verification of timing and loading is required before substituting CBTS3253D,112 in legacy 74-series designs.
CBTS3253D,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74CBTS
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
CBTS3253D,112 FAQ
1.How can I place an order for CBTS3253D,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for CBTS3253D,112 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 CBTS3253D,112 reliable?
The price and inventory of CBTS3253D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CBTS3253D,112 is usually 5 days.
3.What payment methods are accepted for CBTS3253D,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CBTS3253D,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CBTS3253D,112?
CBTS3253D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CBTS3253D,112 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 CBTS3253D,112?
For technical support, including CBTS3253D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CBTS3253D,112 requirements.
6.How does Aetrix verify that CBTS3253D,112 is sourced from the original manufacturer or authorized distributors?
All CBTS3253D,112 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 CBTS3253D,112 meets industry standards.
7.What is the process for return or replacement of CBTS3253D,112?
All CBTS3253D,112 units undergo pre-shipment inspection (PSI). If there is an issue with CBTS3253D,112, 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 CBTS3253D,112 part is unused and in its original packaging.
Return procedure for CBTS3253D,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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