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Renesas 74CBTLV3253QG
- Part No.:
- 74CBTLV3253QG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
74CBTLV3253QG.pdf
- Description:
- IC MUX/DEMUX 2 X 4:1 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,958
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Product details
Overview
74CBTLV3253QG from Renesas Electronics is a low-voltage dual 1-of-4 multiplexer/demultiplexer IC with bi-directional 5Ω switch paths, 2.3V–3.6V supply operation, −40°C to +85°C industrial temperature range, and QSOP-16 package. It routes signals between one A-port and four B-ports per bank under S0/S1 select control and dual OE enable, used in high-speed data path switching for FPGA I/O expansion and memory interface buffering.
For engineers reviewing the 74CBTLV3253QG datasheet, 74CBTLV3253QG pinout, 74CBTLV3253QG application, or 74CBTLV3253QG equivalent, key selection criteria include on-resistance (5Ω typ), propagation delay (0.25ns max), isolation during power-off, over-voltage tolerance up to 4.6V, and compatibility with 2.5V/3.3V logic systems.
Technical Context
The 74CBTLV3253QG implements two independent 1:4 analog/digital signal switches, each controlled by a 2-bit binary select (S0, S1) and individual output-enable (1OE, 2OE). Switch conduction is bidirectional with minimal RC delay due to low RON and low CIO(OFF) (6pF on B port).
It features power-off isolation, latch-up immunity (>100mA), and over-voltage tolerance (−0.5V to +4.6V on all I/O), enabling hot-swap and mixed-voltage domain interfacing without level shifters. Control inputs accept 2.3V–3.6V logic thresholds with VIH/VIL specified across VCC ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports both 2.5V and 3.3V system rails without external regulation |
| RON (typ) | 5Ω - enables low-loss, high-fidelity analog/digital signal routing with <0.15ns propagation delay |
| tPD (max) | 0.25ns - ensures sub-nanosecond timing integrity in high-speed parallel bus applications |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
| IOFF | 50µA max at VCC = 0 - guarantees robust channel isolation when powered down |
| CIO(OFF) | 6pF (B port) - minimizes capacitive loading and crosstalk in dense PCB layouts |
| ESD Rating | 2000V HBM, 200V MM - meets MIL-STD-883 requirements for handling reliability |
Pinout & Package
74CBTLV3253QG is housed in a 16-pin Quarter-Size Small Outline Package (QSOP), also designated PCG16, with 0.65mm lead pitch and standard JEDEC MO-137AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | GND, VCC, 1OE | Ground reference, 2.3–3.6V supply, and output-enable for Bank 1 - tie 1OE to VCC via pullup for safe power-up state |
| 2, 3, 4, 5 | 1B1–1B4 | Four bidirectional data terminals for Bank 1 - connect to peripheral I/O lines or memory data lanes |
| 6, 7, 10, 11 | 2B1–2B4 | Four bidirectional data terminals for Bank 2 - independently switchable from Bank 1 |
| 8, 14 | 1A, 2A | Common input/output ports per bank - serve as central data hubs for multiplexing/demultiplexing |
| 9, 12, 13 | S0, S1, 2OE | Bank 2 select bits and output-enable - S0/S1 decode 1-of-4 path; 2OE disables Bank 2 independently |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional 5Ω switch | Enables transparent analog/digital signal routing in either direction without polarity constraints |
| Power-off isolation | Maintains >1MΩ channel resistance when VCC = 0, preventing backdrive and bus contention |
| Over-voltage tolerant I/O | Accepts −0.5V to +4.6V on all pins regardless of VCC, supporting mixed-supply interconnect |
| Industrial temperature range | Guaranteed operation from −40°C to +85°C without derating - suitable for factory automation and outdoor comms |
| Low input capacitance | CI = 4pF per control input - reduces clock load and improves timing margin in high-frequency enable/select paths |
Applications
| FPGA I/O Expansion | Memory Interface Buffering |
|---|---|
Use Scenario: Expanding limited FPGA GPIO count to drive multiple peripherals via time-shared connections. IC Role / Device Role / Timing Role: Dual 1-of-4 mux/demux routes signals between FPGA I/O banks and external sensors, displays, or ADCs. Use Value: Enables 8:2 signal consolidation with <0.25ns delay and no level-shifting overhead, preserving timing closure. | Use Scenario: Isolating and routing address/data lines between microcontroller and multiple SRAM or Flash devices. IC Role / Device Role / Timing Role: Acts as a bi-directional bus switch to share memory control lines across multiple chips using select logic. Use Value: Eliminates need for discrete buffers while maintaining 5Ω on-resistance and 6pF off-capacitance for clean signal integrity. |
| Hot-Swappable Module Interface | Industrial Sensor Multiplexing |
Use Scenario: Connecting field-replaceable modules to a host controller without powering down the main system. IC Role / Device Role / Timing Role: Provides power-off isolation and over-voltage tolerance to prevent backfeed and damage during insertion/removal. Use Value: Supports live module swaps with guaranteed 50µA IOFF and ±4.6V I/O tolerance - no external protection required. | Use Scenario: Aggregating analog voltage outputs from multiple temperature, pressure, or current sensors into a single ADC input. IC Role / Device Role / Timing Role: Functions as a low-RON, low-CIO analog multiplexer with rail-to-rail signal passband. Use Value: Delivers <1% gain error contribution and <0.15ns group delay variation across channels for precision measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 1-of-4 multiplexer/demultiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3253PWR | Same 5Ω RON, identical function table, but TSSOP-16 (PGG16) package; slightly higher CIO(OFF) (20pF vs 6pF on B port) | Better thermal dissipation in high-density layouts; less optimal for ultra-low-capacitance analog routing | Select SN74CBTLV3253PWR if board uses TSSOP footprints or requires higher power handling |
| 74LVC253PW | Higher RON (24Ω typ), slower tPD (3.5ns max), no over-voltage tolerance beyond VCC+0.3V | Limited to 3.3V-only systems; unsuitable for hot-swap or mixed-voltage domains | Choose 74LVC253PW only for cost-sensitive, non-industrial designs with relaxed timing and voltage requirements |
Compared with SN74CBTLV3253PWR and 74LVC253PW, the 74CBTLV3253QG delivers superior analog performance (6pF B-port capacitance), industrial temperature support, and true over-voltage tolerance - critical for robust signal routing in programmable logic and sensor aggregation systems.
Availability
74CBTLV3253QG is available at Aetrix Electronics and suitable for FPGA I/O expansion, memory interface buffering, and industrial sensor multiplexing requiring stable component supply across extended temperature and mixed-voltage environments.
Supply support for 74CBTLV3253QG 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and infrastructure markets.
The 74CBTLV3253QG belongs to Renesas' legacy IDT logic portfolio, designed specifically for high-speed, low-distortion signal routing in industrial and communications equipment where power-off safety and voltage-domain interoperability are essential.
FAQ
What is the maximum continuous current rating for each switch channel in the 74CBTLV3253QG?
The 74CBTLV3253QG supports a continuous channel current of 128mA per switch path. This rating applies under normal operating conditions with VCC = 2.3V–3.6V and ambient temperature within −40°C to +85°C. Exceeding this current may increase RON drift or thermal stress; design margins should account for worst-case voltage drop across the 5Ω typical on-resistance.
Does the 74CBTLV3253QG require external pull-up resistors on its OE pins, and if so, what value is recommended?
Yes, the 74CBTLV3253QG requires pull-up resistors on 1OE and 2OE to ensure high-impedance state during power-up or power-down. The minimum resistor value depends on the driver's current-sinking capability; Renesas recommends values ≥10kΩ for standard CMOS drivers. Lower values improve noise immunity but increase static current - typical designs use 4.7kΩ to 10kΩ.
Can the 74CBTLV3253QG be used to switch analog signals such as audio or sensor voltages?
Yes, the 74CBTLV3253QG is suitable for analog signal switching including audio and sensor outputs. Its 5Ω RON, 6pF B-port off-capacitance, and rail-to-rail voltage handling (−0.5V to +4.6V) preserve signal fidelity. However, it is not optimized for high-precision instrumentation; for sub-mV offset or THD-critical applications, dedicated analog switches like the ADG1419 are preferred over the 74CBTLV3253QG.
What is the absolute maximum input voltage allowed on the B-port pins of the 74CBTLV3253QG when VCC = 0V?
When VCC = 0V, the B-port pins of the 74CBTLV3253QG tolerate −0.5V to +4.6V per Absolute Maximum Ratings. This over-voltage capability enables safe connection to live buses during power sequencing or hot-swap events. The device maintains isolation (IOFF ≤ 50µA) under these conditions, making the 74CBTLV3253QG appropriate for systems requiring robust power-domain independence.
How does the 74CBTLV3253QG handle simultaneous switching of both banks, and is there any crosstalk between them?
The 74CBTLV3253QG operates both banks independently - Bank 1 (1A/1B1–1B4/1OE) and Bank 2 (2A/2B1–2B4/2OE) have separate enable and select controls. Measured crosstalk is <−50dB at 10MHz, primarily limited by substrate coupling and shared VCC/GND paths. Layout best practices (separate ground vias, local decoupling) further suppress interference, ensuring reliable concurrent operation in the 74CBTLV3253QG.
74CBTLV3253QG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74CBTLV
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
74CBTLV3253QG FAQ
1.How can I place an order for 74CBTLV3253QG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV3253QG 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 74CBTLV3253QG reliable?
The price and inventory of 74CBTLV3253QG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV3253QG is usually 5 days.
3.What payment methods are accepted for 74CBTLV3253QG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV3253QG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV3253QG?
74CBTLV3253QG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV3253QG 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 74CBTLV3253QG?
For technical support, including 74CBTLV3253QG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV3253QG requirements.
6.How does Aetrix verify that 74CBTLV3253QG is sourced from the original manufacturer or authorized distributors?
All 74CBTLV3253QG 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 74CBTLV3253QG meets industry standards.
7.What is the process for return or replacement of 74CBTLV3253QG?
All 74CBTLV3253QG units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV3253QG, 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 74CBTLV3253QG part is unused and in its original packaging.
Return procedure for 74CBTLV3253QG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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