具有内部下拉电阻的 3.3V、1:1 (SPST)、10 通道 FET 总线开关
| Configuration | 1:1 SPST |
| Number of channels (#) | 10 |
| Power supply voltage - single (V) | 3.3 |
| Protocols | Analog |
| Ron (Typ) (Ohms) | 5 |
| ON-state leakage current (Max) (μA) | 1000 |
| Bandwidth (MHz) | 200 |
| Operating temperature range (C) | -40 to 85 |
| Features | Powered-off protection |
| Input/output continuous current (Max) (mA) | 48 |
| Rating | Catalog |
- Enable Signal Is SSTL_2 Compatible
- Flow-Through Architecture Optimizes PCB Layout
- Designed for Use With 200 Mbit/s Double Data-Rate (DDR) SDRAM Applications
- Switch On-State Resistance Is Designed to Eliminate Series Resistor to DDR SDRAM
- Internal 10-k
Pulldown Resistors to Ground on B Port - Internal 50-k Pullup Resistor on Output-Enable Input
- Rail-to-Rail Switching on Data I/O Ports
- Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
This 10-bit FET bus switch is designed for 3-V to 3.6-V VCC operation and SSTL_2 output-enable (OE\) input levels.
When OE\ is low, the 10-bit bus switch is on, and port A is connected to port B. When OE\ is high, the switch is open, and the high-impedance state exists between the two ports. There are 10-k pulldown resistors to ground on the B port.
The FET switch on-state resistance is designed to replace the series terminating resistor in the SSTL_2 data path.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.
