Overview
The SN74CBTD16210DGGR is a 20-bit FET bus switch with level-shifting capabilities, manufactured by Texas Instruments. This device is part of the Widebus family and is designed to provide high-speed TTL-compatible bus switching. It features low on-state resistance, allowing for minimal propagation delay and is ideal for applications requiring level shifting between different voltage levels, such as from 5-V to 3.3-V signals.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (DGG) | - |
| Pins | 48 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | -0.5 to 7 | V |
| Input Voltage Range | -0.5 to 7 | V |
| Switch I/O Voltage Range | -0.5 to 7 | V |
| On-State Switch Current | ±128 | mA |
| Package Thermal Impedance (θJA) | 70 | °C/W |
| Propagation Delay (tpd) | 0.15 to 0.25 | ns |
Key Features
- Member of Texas Instruments Widebus Family
- 20 bits of high-speed TTL-compatible bus switching
- Low on-state resistance (5 Ω) for minimal propagation delay
- TTL-compatible input levels
- Designed for level-shifting applications (e.g., 5-V to 3.3-V signals)
- Dual 10-bit bus switch with separate output-enable (OE) inputs
- Supports partial-power-down mode operation with Ioff feature
- ESD performance tested per JESD 22 – 2000-V Human-Body Model and 1000-V Charged-Device Model
Applications
The SN74CBTD16210DGGR is suitable for various applications, including:
- Memory interleaving and bus isolation
- Low-power portable equipment
- Systems requiring mixed-mode signal operation (e.g., 5-V TTL, 3.3-V LVTTL, 2.5-V CMOS)
- High-frequency and fast edge rate applications
Q & A
- What is the primary function of the SN74CBTD16210DGGR?
The primary function is to provide 20 bits of high-speed TTL-compatible bus switching with level-shifting capabilities. - What are the operating temperature ranges for this device?
The operating temperature range is from -40°C to 85°C. - What is the package type and pin count of the SN74CBTD16210DGGR?
The package type is TSSOP (DGG) with 48 pins. - Can the SN74CBTD16210DGGR be used in partial-power-down mode?
Yes, it supports partial-power-down mode operation with the Ioff feature. - What is the on-state resistance of the switch?
The on-state resistance is approximately 5 Ω. - How does the level-shifting feature work?
The device integrates a diode to VCC, allowing for level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs. - What are the ESD performance specifications of the SN74CBTD16210DGGR?
The device is tested per JESD 22 – 2000-V Human-Body Model and 1000-V Charged-Device Model. - Can the SN74CBTD16210DGGR be used as two separate 10-bit bus switches or as one 20-bit bus switch?
Yes, it can be used in both configurations. - What is the propagation delay of the SN74CBTD16210DGGR?
The propagation delay (tpd) is between 0.15 ns and 0.25 ns. - What are some common applications for the SN74CBTD16210DGGR?
Common applications include memory interleaving, bus isolation, and low-power portable equipment.
