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Product Detailed Parameters
- Description：IC BUS FET EXC SW 12X2:2 56TSSOP
- Series：74CBT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Bus FET Exchange Switch
- Circuit：12 x 2:2
- Independent Circuits：1
- Current - Output High, Low：-
- Voltage Supply Source：Single Supply
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：56-TFSOP (0.240", 6.10mm Width)
- Supplier Device Package：56-TSSOP
- Grade：-
- Qualification：-
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Overview
The SN74CBT16212ADGGR is a 24-bit FET bus-exchange switch manufactured by Texas Instruments. It operates on a single 4 V to 5.5 V supply and features TTL-compatible input levels. The device functions as either a 24-bit bus switch or a 12-bit bus exchanger, utilizing three data-select terminals (S0, S1, S2) to route signals between four ports. It provides a low on-state resistance of 5 Ω and includes ESD protection exceeding 200 V machine model. The component is housed in a 56-pin TSSOP package.
Feature Summary
- Provides 24 bits of high-speed TTL-compatible bus switching or exchanging capabilities
- Functions as a 12-bit bus exchanger allowing data routing between four signal ports via control terminals
- Features low on-state resistance for minimal propagation delay connections
- Includes latch-up performance exceeding 250 mA per JESD 17 standards
Applications
- High-speed digital bus switching applications
- Data exchanging between multiple signal ports
- Systems requiring TTL-compatible interface levels
Procurement Notes
Verify the specific ordering suffix 'DGGR' corresponds to the TSSOP-56 package with tape and reel packaging. Confirm the operating temperature range matches the -40°C to 85°C specification for this variant. Ensure compatibility with the 4 V to 5.5 V supply voltage requirements before procurement.
Selection Notes
Select this component when a 24-bit wide bus interface is required within a 5 V logic system. The device is suitable for designs needing flexible port configuration through the S0, S1, and S2 select inputs. Consider the 56-pin TSSOP footprint for PCB layout constraints.
Part Context
This part belongs to the Widebus family from Texas Instruments, designed for high-density bus management. It serves as a specialized solution for managing large data widths where standard switches would require excessive pin counts. The device integrates multiple independent switches into a single package to simplify board design.
Replacement Considerations
SN74CBT16212ADL
FAQ
How does the device function as a bus exchanger?
It acts as a 12-bit bus exchanger that provides data exchanging between four signal ports via the data-select (S0, S1, S2) terminals.
What is the maximum supply voltage?
The recommended operating conditions specify a maximum supply voltage (VCC) of 5.5 V.
