具有电平转换器的 3.3V、1:1 (SPST)、2 通道 FET 总线开关
| Configuration | 1:1 SPST |
| Number of channels (#) | 2 |
| Power supply voltage - single (V) | 2.5, 3.3 |
| Protocols | Analog, UART, I2C |
| Ron (Typ) (Ohms) | 5 |
| CON (Typ) (pF) | 4 |
| ON-state leakage current (Max) (μA) | 20 |
| Bandwidth (MHz) | 100 |
| Operating temperature range (C) | -40 to 85 |
| Features | Powered-off protection, Signal path translation |
| Input/output continuous current (Max) (mA) | 128 |
| Rating | Catalog |
- Output Voltage Translation Tracks VCC
- Supports Mixed-Mode Signal Operation on All Data
I/O Ports- 5-V Input Down to 3.3-V Output Level Shift
With 3.3-V VCC - 5-V/3.3-V Input Down to 2.5-V Output Level Shift
With 2.5-V VCC
- 5-V Input Down to 3.3-V Output Level Shift
- 5-V Tolerant I/Os With Device Powered Up or
Powered Down - Bidirectional Data Flow With Near-Zero
Propagation Delay - Low ON-State Resistance (ron) Characteristics (ron =
5 Ω Typical) - Low Input/Output Capacitance Minimizes Loading
(Cio(OFF) = 4.5 pF Typical) - Data and Control Inputs Provide Undershoot
Clamp Diodes - Low Power Consumption (ICC = 20 μA Maximum)
- VCC Operating Range From 2.3 V to 3.6 V
- Data I/Os Support 0- to 5-V Signaling Levels (0.8
V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V) - Control Inputs Can Be Driven by TTL or 5-V/3.3-V
CMOS Outputs - Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 250 mA Per
JESD 17 - ESD Performance Tested Per JESD 22
- 2000-V Human Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
- Supports Digital Applications:
- Level Translation
- USB Interface
- Bus Isolation
- Ideal for Low-Power Portable Equipment
The SN74CB3T3306 device is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3306 device supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.
