My Inquiry
My Account
Texas Instruments SN74CBTLV16292DL
- Part No.:
- SN74CBTLV16292DL
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74CBTLV16292DL.pdf
- Description:
- IC MUX/DEMUX 12 X 1:2 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,999
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74CBTLV16292DL from Texas Instruments is a 12-bit 1-of-2 high-speed FET multiplexer/demultiplexer with 4-Ω on-state resistance, rail-to-rail switching, and make-before-break operation. It supports partial-power-down via Ioff, includes internal 500-Ω pulldown resistors, and operates across −40°C to 85°C in SSOP-56 packaging. Used in high-speed data routing for memory expansion and bus isolation in industrial control systems.
For engineers reviewing the SN74CBTLV16292DL datasheet, SN74CBTLV16292DL pinout, SN74CBTLV16292DL application, or SN74CBTLV16292DL equivalent, key selection criteria include its 0.15 ns typical propagation delay (A↔B), 2.3–3.6 V supply range, Ioff-enabled power-down isolation, and verified 12-bit dual-port switching behavior per TI SCDS055K.
Technical Context
This device implements a 12-channel bidirectional analog switch matrix controlled by a single select (S) input. Each channel features complementary FET pairs enabling make-before-break switching between port A and either B1 or B2, while RINT connects to the alternate B port - all with rail-to-rail signal handling and no DC bias requirement.
It integrates Ioff circuitry that actively blocks current flow when VCC = 0 V, ensuring isolation during partial power-down. Internal 500-Ω pulldown resistors on unused terminals prevent floating states, and latch-up performance exceeds 250 mA per JESD 17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 12-bit 1-of-2 FET mux/demux with independent A/B1/B2/RINT routing |
| On-state resistance (ron) | Typ. 4 Ω at VCC = 3 V - enables minimal insertion loss and low propagation delay |
| Propagation delay (tpd) | 0.15 ns (typ.) A↔B - supports >5 GHz small-signal bandwidth in impedance-matched paths |
| Supply voltage (VCC) | 2.3 V to 3.6 V - compatible with 2.5 V and 3.3 V logic domains without level translation |
| Ioff current | 10 µA max at VCC = 0 V - guarantees backflow prevention and system-level power domain isolation |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade embedded and automation applications |
| Input capacitance (Ci) | 3.5 pF - minimizes loading on driving logic and preserves signal edge integrity |
Pinout & Package
SN74CBTLV16292DL uses a 56-pin Shrink Small-Outline Package (SSOP-DL) with 0.5 mm pitch, 11.4 mm × 7.9 mm body, and 1.2 mm max height. Pin 1 is located in quadrant Q1 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S | Select control input | Determines routing: S = L → A↔B1 & RINT↔B2; S = H → A↔B2 & RINT↔B1 |
| 1A–12A | Port A inputs/outputs | Bidirectional data terminals connected to primary bus or processor interface |
| 1B1–12B1, 1B2–12B2 | Port B1/B2 inputs/outputs | Two independent 12-bit destination ports - e.g., memory banks or peripheral interfaces |
| RINT | Reference input terminal | Connects to B1 or B2 per S state; used for reference path or auxiliary signal routing |
| VCC | Power supply | Single 2.3–3.6 V supply powers all switches and control logic; no separate analog/digital rails |
| GND | Ground reference | Two dedicated GND pins (pins 8 and 38) reduce ground bounce in high-speed switching |
| NC | No internal connection | 14 pins marked NC - must be left unconnected; not usable as heatsink or test points |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports full 0 V to VCC signal swing without distortion or clipping - essential for mixed-signal bus sharing |
| Make-before-break switching | Ensures <2 ns overlap during port transition - prevents momentary open-circuit faults in live-bus applications |
| Ioff partial-power-down protection | Blocks >99.9% of backflow current when VCC = 0 V - enables hot-swap and domain-isolated power sequencing |
| Internal 500-Ω pulldown resistors | Eliminates need for external biasing on unused B1/B2 pins - reduces BOM count and layout area |
| Latch-up immunity | Exceeds 250 mA per JESD 17 - ensures robustness against transient overvoltage and ESD-induced latch-up |
Applications
| Memory Expansion Interface | PCI/PCIe Bus Isolation |
|---|---|
|
Use Scenario: Expanding DRAM capacity in space-constrained industrial controllers using dual-bank addressing. IC Role / Device Role / Timing Role: 12-bit mux routes address/data lines between controller and two memory banks under S-control; RINT selects bank-specific control signals. Use Value: 4-Ω ron and 0.15 ns tpd preserve timing margins across 133 MHz DDR interfaces without added buffers. |
Use Scenario: Isolating legacy PCI slots from shared system resources during hot-plug events. IC Role / Device Role / Timing Role: Routes 32-bit AD[31:0] and C/BE# lines between slot connector and host bridge; S input synchronized to PCIe reset assertion. Use Value: Ioff blocks leakage when slot is powered down, preventing corruption of active bus segments. |
| FPGA I/O Multiplexing | Test Access Port (TAP) Routing |
|
Use Scenario: Sharing limited FPGA I/O pins among multiple peripherals (e.g., SPI flash, UART, I²C) in boot firmware. IC Role / Device Role / Timing Role: Configurable 12-bit path directs FPGA GPIOs to selected peripheral; RINT carries chip-select or enable signals. Use Value: Rail-to-rail operation supports 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
Use Scenario: Dynamically routing JTAG TCK/TMS/TDI/TDO signals between multiple ASICs on a production test board. IC Role / Device Role / Timing Role: Acts as a 4-bit mux for TAP signals; S input driven by test controller to select DUT under debug. Use Value: Make-before-break prevents TAP state machine glitches during reconfiguration - maintains IEEE 1149.1 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit FET mux/demux applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3861DGVR | 10-bit, 24-pin TVSOP; no RINT pin; lacks internal pulldowns | Lower channel count; requires external biasing; suited for compact 10-line routing only | Choose when footprint and pin count are constrained but 12-bit routing is unnecessary |
| SN74CBT16292DL | Same 12-bit function but TTL-level VIH/VIL; higher ron (7 Ω typ); no Ioff | Not suitable for partial-power-down systems; higher insertion loss limits >100 MHz use | Choose only for legacy 5 V tolerant designs where Ioff and ultra-low ron are not required |
Compared with SN74CBTLV3861DGVR and SN74CBT16292DL, the SN74CBTLV16292DL uniquely delivers 12-bit make-before-break switching with Ioff, rail-to-rail operation, and integrated pulldowns - making it the only option qualified for industrial hot-swap and multi-voltage bus consolidation.
Availability
SN74CBTLV16292DL is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O consolidation, and JTAG test access routing requiring stable component supply across industrial temperature ranges and long-lifecycle programs.
Supply support for SN74CBTLV16292DL 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 connectivity technologies, with decades of expertise in high-speed logic and interface solutions.
The Widebus™ family - including the SN74CBTLV16292DL - was designed specifically for low-latency, low-distortion signal routing in memory, bus, and test infrastructure applications demanding rail-to-rail analog switching and robust power-domain isolation.
FAQ
What is the maximum operating frequency supported by the SN74CBTLV16292DL?
The SN74CBTLV16292DL does not specify a maximum clock frequency, as it is an analog switch - not a clocked digital device. Its 0.15 ns typical propagation delay and 4 Ω on-resistance support signal integrity up to ~5 GHz in matched-impedance paths. Actual usable bandwidth depends on PCB layout, load capacitance, and source impedance - verified per TI SCDS055K characterization at 30 pF and 50 Ω drive.
Does the SN74CBTLV16292DL require external pull-up or pull-down resistors on its control or data pins?
No. The SN74CBTLV16292DL includes internal 500-Ω pulldown resistors on all B1 and B2 port pins, eliminating the need for external biasing. The S input has standard CMOS thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V at VCC = 3.6 V) and must be driven to VCC or GND - no external resistors required if sourced from clean logic outputs.
Can the SN74CBTLV16292DL be used to switch differential signals such as LVDS?
No. The SN74CBTLV16292DL is a single-ended switch with no common-mode rejection or matched-pair routing. Its 4 Ω ron mismatch and lack of differential termination make it unsuitable for LVDS, USB, or other differential protocols. It is intended for single-ended parallel buses (e.g., address/data lines, GPIOs, JTAG) where rail-to-rail analog pass-through is required.
How does the Ioff feature of the SN74CBTLV16292DL protect downstream circuitry during power-down?
When VCC = 0 V, the SN74CBTLV16292DL's Ioff circuitry disables all FET channels and limits leakage current to ≤10 µA - preventing damaging backflow from live B1/B2 or A ports into the unpowered device. This maintains isolation between powered and unpowered domains, satisfying requirements for hot-swap and partial-power-down systems per TI SCDS055K Section 6.
Is the SN74CBTLV16292DL pin-compatible with other devices in the CBTLV family, such as the SN74CBTLV3861?
No. The SN74CBTLV16292DL is a 56-pin SSOP device with 12-bit A/B1/B2/RINT routing and specific pinout defined in TI SCDS055K Figure 1. The SN74CBTLV3861 is a 24-pin TVSOP with 10-bit A/B routing and no RINT function. They differ in package, pin count, signal mapping, and internal architecture - no pin-to-pin or drop-in replacement exists.
SN74CBTLV16292DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74CBTLV
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 12 x 1:2
- 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:
- 56-SSOP
SN74CBTLV16292DL FAQ
1.How can I place an order for SN74CBTLV16292DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74CBTLV16292DL 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 SN74CBTLV16292DL reliable?
The price and inventory of SN74CBTLV16292DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74CBTLV16292DL is usually 5 days.
3.What payment methods are accepted for SN74CBTLV16292DL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74CBTLV16292DL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74CBTLV16292DL?
SN74CBTLV16292DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74CBTLV16292DL 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 SN74CBTLV16292DL?
For technical support, including SN74CBTLV16292DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74CBTLV16292DL requirements.
6.How does Aetrix verify that SN74CBTLV16292DL is sourced from the original manufacturer or authorized distributors?
All SN74CBTLV16292DL 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 SN74CBTLV16292DL meets industry standards.
7.What is the process for return or replacement of SN74CBTLV16292DL?
All SN74CBTLV16292DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74CBTLV16292DL, 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 SN74CBTLV16292DL part is unused and in its original packaging.
Return procedure for SN74CBTLV16292DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74CBTLV16292DL Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
-
74CBTLV3257PW,118
Nexperia USA Inc.
-
SN74CBTLV3257PWR
Texas Instruments
-
74CBTLV3257GUX
Nexperia USA Inc.
-
74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
-
SN74CB3Q3245PWR
Texas Instruments
-
SN74CB3Q3257RGYR
Texas Instruments
-
TCA9543APWR
Texas Instruments
-
TCA9546APWR
Texas Instruments
-
SN74HC138N
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…
