IDT74CBTLV6800 LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS FEATURES: IDT74CBTLV6800 DESCRIPTION: • • • • • • • Functionally equivalent to QS3800 Ω A/B bi-directional switch 5Ω Isolation under power-off conditions Over-voltage tolerant Latch-up performance exceeds 100mA VCC = 2.3V - 3.6V, Normal Range ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) • Available in QSOP and TSSOP packages The CBTLV6800 provides 10-bits of high-speed bus switching with low on-state resistance of the switch allowing connections to be made with minimal propagation delay. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise. The CBTLV6800 is organized as a single 10-bit bus switch with a single output-enable (OE) input. 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, and port B is precharged to BIASV through the equivalent of a 10-kΩ resistor. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. APPLICATIONS: • 3.3V High Speed Bus Switching and Bus Isolation FUNCTIONAL BLOCK DIAGRAM SIMPLIFIED SCHEMATIC, EACH SWITCH 13 A1 2 SW 23 BIASV B1 A A10 OE 11 SW 14 B B10 1 OE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE DECEMBER 2014 1 © 2015 Integrated Device Technology, Inc. DSC-5739/5 IDT74CBTLV6800 LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol OE 1 24 VCC A1 2 23 B1 A2 3 22 B2 A3 4 21 B3 A4 5 20 B4 A5 6 19 B5 A6 7 18 B6 A7 8 17 B7 A8 9 16 B8 A9 10 15 B9 A10 11 14 B10 GND 12 13 BIASV Max Unit VCC SupplyVoltage Range Description –0.5 to +4.6 V VI Input Voltage Range –0.5 to +4.6 V 128 mA –50 mA –65 to +150 °C Continuous Channel Current IIK Input Clamp Current, VI/O < 0 TSTG Storage Temperature NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. FUNCTION TABLE(1) QSOP / TSSOP TOP VIEW Input OE Inputs/Outputs L H A Port = B Port A Port = Z B Port = BIASV NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedance OPERATING CHARACTERISTICS, TA = 25°C(1) Symbol VCC BIASV Parameter Test Conditions Supply Voltage Bias Voltage Min. Max. Unit 2.3 3.6 V 1.3 VCC V 1.7 — V VIH High-Level Control Input Voltage VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V 2 — VIL Low-Level Control Input Voltage VCC = 2.3V to 2.7V — 0.7 — 0.8 TA Operating Free-Air Temperature −40 85 VCC = 2.7V to 3.6V NOTE: 1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. 2 V °C IDT74CBTLV6800 LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Conditions: TA = –40°C to +85°C Symbol VIK II Parameter Test Conditions Min. Typ. Max. Unit Control Inputs, Data Inputs VCC = 3V, II = –18mA — — –1.2 V Control Inputs VCC = 3.6V, VI = VCC or GND — — ±1 μA Data I/O VCC = 3.6V, VO = 0 or 3.6V, switch disabled — — ±20 μA IOFF VCC = 0, VI or VO = 0 to 3.6V — — 50 μA |I O | VCC = 3V, BIASV = 2.4V, VO = 0, OE = VCC 0.25 — — mA ICC VCC = 3.6V, IO = 0, VI = VCC or GND — — 10 μA IOZ ΔICC(1) Control Inputs VCC = 3.6V, one input at 3V, other inputs at VCC or GND — — 300 μA CI Control Inputs VI = 3V or 0 — 4 — pF VO = 3V or 0, switch OFF, BIASV = Open, OE = VCC — 7 — pF VCC = 2.3V Typ. at VCC = 2.5V VI = 0 — — — — — — 5 5 27 5 5 10 8 8 40 7 7 15 CIO(OFF) RON(2) II = 64mA II = 24mA II = 15mA II = 64mA II = 24mA II = 15mA VI = 1.7V VI = 0 VCC = 3V VI = 2.4V Ω NOTES: 1. The increase in supply current is attributable to each current that is at the specified voltage level rather than VCC or GND. 2. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by the lower of the voltages of the two (A or B ) terminals. SWITCHING CHARACTERISTICS VCC = 2.5V ± 0.2V Symbol tPD (1) Parameter Propagation Delay VCC = 3.3V ± 0.3V Min. Max. Min. Max. Unit − 0.15 − 0.25 ns 1 4.8 1 4.5 ns 1 5.6 1 5.5 ns A to B or B to A tPZH BIASV = 3V or GND tPZL OE to A or B tPHZ BIASV = 3V or GND tPLZ OE to A or B NOTE: 1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance driven by an ideal voltage source (zero output impedance). 3 IDT74CBTLV6800 LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS TEST CIRCUITS AND WAVEFORMS SAME PHASE INPUT TRANSITION TEST CONDITIONS Symbol VCC(1)= 3.3V±0.3V VCC(2)= 2.5V±0.2V Unit VLOAD 6 2 x Vcc V VIH 3 Vcc V VT 1.5 Vcc / 2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF Pulse(1, 2) Generator tPLH tPHL VIH VT 0V DISABLE ENABLE CONTROL INPUT GND tPZL D.U.T. OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500 CL tPLZ VLOAD/2 VT tPHZ VT 0V Test Circuits for All Outputs Enable and Disable Times DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2.5ns. SWITCH POSITION Test Switch tPLZ/tPZL VLOAD tPHZ/tPZH GND tPD Open VIH VT 0V VOH VT VOL Propagation Delay VOUT RT tPHL OPPOSITE PHASE INPUT TRANSITION Open 500 tPLH OUTPUT VLOAD VCC VIN INDUSTRIAL TEMPERATURE RANGE 4 VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V IDT74CBTLV6800 LOW-VOLTAGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION CBTLV XXX XX XX Device Type Package Temp. Range X Blank Tube or Tray 8 Tape and Reel QG PGG Quarter-size Small Outline Package - Green Thin Shrink Small Outline Package - Green 6800 Low-Voltage 10-Bit Bus Switch with Precharged Outputs 74 –40°C to +85°C Datasheet Document History 12/18/2014 Pg. 5 Updated the ordering information by removing the "IDT" notation, non RoHS part and by adding Tape and Reel information. CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 5 for Tech Support: [email protected]