CBT3857 Datasheet | NXP Semiconductors

INTEGRATED CIRCUITS CBT3857 10-bit bus switch with 10 kΩ pull-down termination resistors Product specification Supersedes data of 1998 Dec 10 1999 Sep 14 Philips Semiconductors Philips Semiconductors Product specification 10-bit bus switch with 10 kΩ pull-down termination resistors Features - Enable signal is SSTL_2 patible - Optimized for use in Double Data Rate (DDR) SDRAM applications DESCRIPTION This 10-bit 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 a high-impedance state exists between the two ports. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The CBT3857 is characterized for operation from 0°C to +85°C. - Flow-through architecture optimizes PCB layout - Designed to be used with 200 Mbps - Switch on resistance is designed to eliminate the need for series resistor to DDR SDRAM - Internal 10 kΩ pull-down resistors on B port - Internal 50 kΩ pull-up resistor on output enable input - Full DDR solution provided when used with SSTL16857 and PCK857 - Latch-up protection exceeds 500 m A per JESD78 - ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 QUICK REFERENCE DATA SYMBOL t PLH t PHL CIN COUT ICCZ PARAMETER Propagation delay An to Yn Input capacitance Output capacitance Total supply current CONDITIONS Tamb = 25°C; GND = 0 V CL = 30 p F; VCC = 3.3 V VI = 0 V or VCC Outputs disabled; VO = 0 V or VCC VCC = 3.6 V TYPICAL 720 2.8 6.4 1 UNIT ps p F p F m A ORDERING INFORMATION PACKAGES 24-Pin Plastic TSSOP Type I TEMPERATURE RANGE 0°C to +85°C ORDER CODE CBT3857 PW DWG NUMBER SOT355- 1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER 1 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 12 22, 21, 20, 19, 18, 17, 16, 15, 14, 13 23 24 SYMBOL VREF A1- A10 GND B1- B10 OE VCC NAME AND FUNCTION...