Texas Instruments SN74CB
SN74CB variants from Texas Instruments
SN74CB Overview
What changes between part numbers, and what to check before you lock the BOM — Buffers, Drivers, Receivers and Transceivers.
SN74CB is a Texas Instruments order-code family — not a single orderable MPN. This page lists 42 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.
Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Output Current: 30mA | Number of Channels: 16 | Number of Bits: 16 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C Other listed variants describe: Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Output Current: 30mA | Number of Channels: 24 | Number of Bits: 24 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C; Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Number of Channels: 4 | Number of Outputs: 4 | Number of Bits: 8 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C.
Across listed variants, watch these parameters: packages: TSSOP, VQFN, TFSOP, 48-BSSOP (0.295", 7.50mm Width).
Suffix examples in this family: 3Q16244DGGR, 3Q16211DGGR, 3Q3257PWR, 3Q3257RGYR, 3T16212DGGR, 3T16212DGVR, 3T3253DGVR, 3T3257PWR. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.
Columns that actually vary on this page: Package Type. If two rows match on MPN prefix but differ there, they are not interchangeable for production.
Example MPNs: SN74CB3Q16244DGGR, SN74CB3Q16211DGGR, SN74CB3Q3257PWR, SN74CB3Q3257RGYR, SN74CB3T16212DGGR, SN74CB3T16212DGVR.
Key Features
- Footprint / package: TSSOP, VQFN, TFSOP, 48-BSSOP (0.295", 7.50mm Width)Land pattern and thermal pad differ between these packages — run a quick footprint check before you swap variants.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 42 distinct suffix patternsExamples: 3Q16244DGGR, 3Q16211DGGR, 3Q3257PWR, 3Q3257RGYR, 3T16212DGGR (+37 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Buffers, Drivers, Receivers and Transceivers — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 42 SN74CB part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| SN74CB3Q16244DGGR | Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Output Current: 30mA | Number of Channels: 16 | Number of Bits: 16 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C | TSSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q16211DGGR | Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Output Current: 30mA | Number of Channels: 24 | Number of Bits: 24 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C | TSSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3257PWR | Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Number of Channels: 4 | Number of Outputs: 4 | Number of Bits: 8 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C | TSSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3257RGYR | Package: VQFN | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Number of Channels: 4 | Number of Outputs: 4 | Number of Bits: 8 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C | VQFN | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3T16212DGGR | Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Output Current: 64mA | Number of Channels: 24 | Number of Outputs: 24 | Number of Bits: 24 | Max Operating Temp: 85°C | TSSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3T16212DGVR | Package: TFSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Output Current: 64mA | Number of Channels: 24 | Number of Outputs: 24 | Number of Bits: 24 | Max Operating Temp: 85°C | TFSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3T3253DGVR | Package: TFSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Number of Channels: 2 | Number of Outputs: 2 | Number of Bits: 8 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C | TFSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3T3257PWR | Package: TSSOP | Max Supply Voltage: 3.6V | Min Supply Voltage: 2.3V | Number of Channels: 4 | Number of Outputs: 4 | Number of Bits: 8 | Logic Function: Multiplexer, Demultiplexer | Max Operating Temp: 85°C | TSSOP | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q16210DLR | 20-Ch FET Bus Switch, 500MHz, 3.3V, CMOS, SSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q16244DGVR | 16-Ch FET Bus Switch, 500MHz, 3.6V, CMOS, 48-TVSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3125PW | 4-Bit CMOS Bus Switch IC, 4-Element, 2.3-3.6V, 0.2ns PD, TSSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3244DGVR | 8-Ch FET Bus Switch, 3.3V, 0.2ns, CMOS, SPST, 2.3-3.6V | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3244PWR | 8-Bit Bus Switch IC, 2-Element, CMOS, 3.6V, TSSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3244RGYR | 2-Element 8-Bit Bus Switch, CMOS, 3.6V, VQFN EP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3245DBQR | 8-Ch FET Bus Switch, 500MHz, 3.3V, SPST, CMOS, SSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3245DGVR | 8-Ch FET Bus Switch, 500MHz, 3.3V, SPST, CMOS, TFSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3245PWR | 8-Bit CMOS Bus Switch, 500MHz, 2.3-3.6V, SPST, TSSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3245RGYR | 8-Ch FET Bus Switch, 3.3V, 500MHz, 0.2ns Delay, VQFN | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3251DBQR | 3.3V 8:1 FET Bus Switch IC | 500MHz Bandwidth | SSOP | - | Texas Instruments | Active | Compliant | In Stock | |
| SN74CB3Q3251DGVR | 3.3V 8:1 1CH FET Bus Switch IC, 500MHz, 16-TVSOP | - | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on SN74CB map to package, grade, and reel options.
SN74CB uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.
Suffixes seen here: 3Q16244DGGR, 3Q16211DGGR, 3Q3257PWR, 3Q3257RGYR, 3T16212DGGR, 3T16212DGVR, 3T3253DGVR, 3T3257PWR, 3Q16210DLR, 3Q16244DGVR (+32 more).
What changes between rows: Package Type. Sort the table by these columns when narrowing from base number to a single MPN.
Full MPN examples: SN74CB3Q16244DGGR, SN74CB3Q16211DGGR, SN74CB3Q3257PWR, SN74CB3Q3257RGYR, SN74CB3T16212DGGR.
Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.
How to Choose the Right SN74CB Buffers, Drivers, Receivers and Transceivers
Match the footprint first
Packages here: TSSOP, VQFN, TFSOP, 48-BSSOP (0.295", 7.50mm Width). Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For SN74CB, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "SN74CB" — include the full suffix (e.g. 3Q16244DGGR, 3Q16211DGGR, 3Q3257PWR). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for SN74CB product family
Identity
Variant Parameters
Source SN74CB with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 42 ordering variants from Texas Instruments. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the SN74CB product family.
Related Base Numbers
Related Series
Explore product families linked to this base-number page.