The CBT3857 is a 10-bit bus switch with 10 kOhm pull-down termination resistors. This 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 switch is on and port A is connected to port B. When OE is high, the switch is open, and a high-impedance state exists between the two ports. The switch's low on-state resistance allows connections to be made with minimal propagation delay. The CBT3857 is characterized for operation from 0°C to +85°C.
The Philips Semiconductors CBT3857 is a 10-bit bus switch featuring an enable signal compatible with SSTL_2 and optimized for Double Data Rate (DDR) SDRAM applications. It utilizes a flow-through architecture to optimize PCB layout and includes internal 10 kΩ pull-down resistors on the B port.
| Supply Voltage (VCC) | 3 V to 3.6 V |
|---|---|
| Operating Temperature Range | 0 °C to +85°C |
| Input Capacitance (CIN) | 2.8 pF |
| Output Capacitance (COUT) | 6.4 pF |
| Total Supply Current (ICCZ) | 1 mA |
| On-resistance (ron) | 20 to 30 Ω |
The device is designed for operation from 3 V to 3.6 V.
The device features internal 10 kΩ pull-down resistors on the B port.
Yes, the enable signal is SSTL_2 compatible.