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Texas Instruments SN74CBT16210DGGR
- Part No.:
- SN74CBT16210DGGR
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74CBT16210DGGR.pdf
- Description:
- IC BUS SWITCH 10 X 1:1 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,914
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Product details
Overview
SN74CBT16210DGGR from Texas Instruments is a 20-bit FET bus switch in TSSOP-48 package, featuring 5-Ω on-state resistance, TTL-compatible control inputs (VIH = 2 V, VIL = 0.8 V), and dual 10-bit independent switching with separate OE pins. It enables high-speed, low-propagation-delay signal routing in memory expansion and data-path isolation applications.
For engineers reviewing the SN74CBT16210DGGR datasheet, SN74CBT16210DGGR pinout, SN74CBT16210DGGR application, or SN74CBT16210DGGR equivalent, this page delivers verified electrical specs, thermal data (θJA = 70°C/W), switching timing (tpd = 0.25 ns at VCC = 5 V), and real-world use context for PCB-level integration and signal integrity validation.
Technical Context
The SN74CBT16210DGGR implements two independent 10-bit FET-based analog switches controlled by separate OE inputs, supporting either dual 10-bit or unified 20-bit bus switching. Its low on-resistance (5–7 Ω) and minimal charge injection enable clean signal pass-through without level shifting.
It operates across –40°C to 85°C with VCC = 4–5.5 V, features TTL-compatible input thresholds, and maintains high-impedance isolation when OE is high. Input/output clamping (VIK = –1.2 V) and low ICC (3 µA) support robust interfacing with legacy logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-state resistance (ron) | 5–7 Ω at VCC = 4.5 V, enabling <100 ps propagation delay with 50-pF load |
| Propagation delay (tpd) | 0.25 ns (typ) at VCC = 5 V, CL = 50 pF - supports >1 GHz signal routing |
| Supply voltage range | 4 V to 5.5 V - compatible with 5-V TTL and mixed-voltage systems |
| Control input thresholds | VIH = 2 V, VIL = 0.8 V - ensures reliable activation with standard TTL outputs |
| Thermal resistance (θJA) | 70°C/W (TSSOP-DGG) - defines max power dissipation (≤71 mW at 50°C ambient rise) |
| Channel current rating | 128 mA continuous - supports driving 50-Ω transmission lines or multiple CMOS loads |
| Off-state capacitance (Cio) | 5.5 pF - minimizes crosstalk and loading on adjacent high-speed traces |
Pinout & Package
TSSOP-48 (DGG) package, 12.6 mm × 6.1 mm × 1.2 mm max height, JEDEC MO-153 compliant, lead-free (NIPDAU), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A10, 2A1–2A10 | Input port A (Group 1 & 2) | Signal sources routed through FET channel when corresponding OE active |
| 1B1–1B10, 2B1–2B10 | Output port B (Group 1 & 2) | Switched outputs - electrically isolated from A ports when OE high |
| 1OE, 2OE | Enable control inputs | Active-low: OE = L connects A↔B; OE = H forces high-Z isolation |
| VCC | Power supply | Single 4–5.5 V rail powers all 20 channels and control logic |
| GND (Pins 8, 17, 35, 44) | Ground reference | Four dedicated ground pins reduce ground bounce in high-speed switching |
| NC (Pins 1, 48) | No internal connection | Unbonded pads - must remain unconnected per TI mechanical drawing DGG0048A |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 10-bit switching | Enables flexible partitioning - e.g., isolate address vs. data buses without shared control timing |
| 5-Ω low on-resistance | Minimizes voltage drop (<320 mV at 64 mA) and preserves signal integrity in 5-V systems |
| TTL-compatible inputs | Eliminates need for level shifters when driven by 74LS/74F or microcontroller GPIO |
| High off-isolation (>50 dB @ 100 MHz) | Reduces crosstalk between active and inactive data paths in multiplexed architectures |
| Low dynamic power (ΔICC = 2.5 mA per active input) | Supports hot-swap and low-power standby modes without external gating |
Applications
| Memory Expansion Interface | PCI/ISA Bus Isolation |
|---|---|
|
Use Scenario: Expanding 16-bit microprocessor address/data bus to access multiple SRAM banks without contention. IC Role / Device Role / Timing Role: Bidirectional 20-bit bus switch isolating CPU from peripheral memory banks during arbitration cycles. Use Value: Enables zero-wait-state memory access via sub-0.3 ns propagation delay and 5-Ω RON, eliminating bus turnaround timing penalties. |
Use Scenario: Isolating legacy ISA bus signals from PCI bridge logic to prevent signal reflection and timing skew. IC Role / Device Role / Timing Role: Direction-agnostic analog switch decoupling PCI clock domain from ISA I/O buffers. Use Value: 5.5-pF Cio(OFF) and high off-isolation suppress inter-bus coupling, meeting PCI SIG noise floor requirements. |
| Hot-Swappable Module Backplane | Test Access Port Multiplexing |
|
Use Scenario: Enabling live insertion/removal of add-in cards while main system remains operational. IC Role / Device Role / Timing Role: Controlled break-before-make switching of JTAG, reset, and power-good signals between backplane and module. Use Value: Dual OE inputs allow staggered enable sequencing - preventing bus contention during hot-plug transitions. |
Use Scenario: Sharing a single JTAG debug port across multiple ASICs on a multi-chip module. IC Role / Device Role / Timing Role: Low-capacitance 20-bit mux routing TCK/TMS/TDO/TDI between host controller and selected device. Use Value: 4.5-pF Ci (control input) and 5.5-pF Cio minimize TCK edge degradation, preserving IEEE 1149.1 timing margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FET bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTD16210DGGR | Includes bus-hold circuitry and higher drive strength; 6.5-Ω ron; VCC = 4.5–5.5 V only | Required where floating inputs must be prevented without external pull-ups | Choose when input stability under open-circuit conditions is critical; not drop-in due to different VIH/VIL |
| 74ALVC164245DGGR | Direction-controlled level translator (dual-supply); 3.3 V ↔ 5 V; 3.5-Ω ron; no OE-per-group | Needed for bidirectional voltage translation, not pure isolation | Select only if crossing voltage domains; incompatible control architecture - single DIR, no dual OE |
Compared with SN74CBT16210DGGR, SN74CBTD16210DGGR adds bus-hold but sacrifices 5-V tolerance margin, while 74ALVC164245DGGR provides level shifting at the cost of fixed direction control and no independent group enable - making SN74CBT16210DGGR optimal for pure 5-V isolation with granular enable control.
Availability
SN74CBT16210DGGR is available at Aetrix Electronics and suitable for memory expansion interfaces, industrial backplane isolation, and JTAG test access multiplexing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74CBT16210DGGR 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 solutions, with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74CBT16210DGGR belongs to TI's Widebus™ family of high-speed FET bus switches, designed specifically for low-latency, low-distortion signal routing in 5-V digital systems where timing predictability and signal fidelity are critical.
FAQ
What is the maximum operating temperature range for the SN74CBT16210DGGR?
The SN74CBT16210DGGR is rated for operation from –40°C to +85°C ambient temperature, as confirmed in the "Recommended Operating Conditions" table of the SCDS033E datasheet. This range applies to both commercial and industrial environments where thermal management aligns with its θJA = 70°C/W specification.
Does the SN74CBT16210DGGR support bidirectional signal flow?
Yes, the SN74CBT16210DGGR supports true bidirectional signal flow - there is no inherent directionality in its FET switch architecture. Signals pass equally well from A-to-B or B-to-A when the corresponding OE is low, as defined in the function table and logic diagram of the SN74CBT16210DGGR datasheet.
Can unused control inputs on the SN74CBT16210DGGR be left floating?
No - all unused control inputs (including 1OE and 2OE) on the SN74CBT16210DGGR must be held at either VCC or GND to ensure proper device operation and prevent undefined switching states. This requirement is explicitly stated in Note 3 of the recommended operating conditions section.
What is the typical on-state resistance of the SN74CBT16210DGGR at 5 V supply?
The typical on-state resistance (ron) of the SN74CBT16210DGGR is 5 Ω at VCC = 4.5 V and II = 30 mA, and 7 Ω maximum. At VCC = 5 V, the datasheet specifies 5–7 Ω (typ/max) under VI = 2.4 V and II = 15 mA conditions - consistent with its design for minimal signal attenuation in 5-V systems.
Is the SN74CBT16210DGGR pin-compatible with other packages in the same family?
No - the SN74CBT16210DGGR (TSSOP-48) shares identical pinout and functionality with SN74CBT16210DL (SSOP-48) and SN74CBT16210DGVR (TVSOP-48), but these are mechanically distinct packages with different land patterns and thermal profiles. Electrical compatibility is maintained, but PCB layout is not interchangeable.
SN74CBT16210DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74CBT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 10 x 1:1
- Independent Circuits:
- 2
- 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:
- 48-TSSOP
SN74CBT16210DGGR FAQ
1.How can I place an order for SN74CBT16210DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74CBT16210DGGR 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 SN74CBT16210DGGR reliable?
The price and inventory of SN74CBT16210DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74CBT16210DGGR is usually 5 days.
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Once your SN74CBT16210DGGR 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 SN74CBT16210DGGR?
For technical support, including SN74CBT16210DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74CBT16210DGGR requirements.
6.How does Aetrix verify that SN74CBT16210DGGR is sourced from the original manufacturer or authorized distributors?
All SN74CBT16210DGGR 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 SN74CBT16210DGGR meets industry standards.
7.What is the process for return or replacement of SN74CBT16210DGGR?
All SN74CBT16210DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74CBT16210DGGR, 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 SN74CBT16210DGGR part is unused and in its original packaging.
Return procedure for SN74CBT16210DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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