IDT74CBTLVR3862 LOW-VOLTAGE 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES LOW-VOLTAGE 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES INDUSTRIAL TEMPERATURE RANGE IDT74CBTLVR3862 DESCRIPTION: FEATURES: The CBTLVR3862 is a ten bit high-speed bus switch. It adds an internal series resistor with each switch to reduce reflection noise in high-speed applications. When closed, the switch acts as a source (series) termination for the driver connected to it. The device is organized as one 10-bit bus switch. The switches are controlled by independent active-low enable (OE) and active-high enable (OE) controls. 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, and OE should be tied to GND. • • • • • 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 SSOP, QSOP, and TSSOP packages APPLICATIONS: • 3.3V High Speed Bus Switching and Bus Isolation FUNCTIONAL BLOCK DIAGRAM A1 A10 OE OE 2 SIMPLIFIED SCHEMATIC, EACH SWITCH 22 SW 11 SW 13 B1 B10 A B 1 23 OE OE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE AUGUST 2002 1 c 2002 Integrated Device Technology, Inc. DSC-5867/7 IDT74CBTLVR3862 LOW-VOLTAGE 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC OE 1 INDUSTRIAL TEMPERATURE RANGE 24 VCC A1 2 23 OE A2 3 22 B1 A3 4 21 B2 A4 5 20 B3 A5 6 19 B4 A6 7 18 B5 A7 8 17 B6 A8 9 16 B7 A9 10 15 B8 A10 11 14 B9 GND 12 13 B10 VI IIK TSTG Description Max. Unit Supply Voltage Range –0.5 to 4.6 V Input Voltage Range –0.5 to 4.6 V Continuous Channel Current 128 mA Input Clamp Current, VI/O < 0 –50 mA –65 to +150 °C Storage Temperature Range 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) Inputs SSOP/ QSOP/ TSSOP TOP VIEW OE Function OE L L Disconnect L H Disconnect H L A Port = B Port H H Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level OPERATING CHARACTERISTICS(1) Symbol Parameter VCC Supply Voltage VIH High-Level Control Input Voltage VIL Low-Level Control Input Voltage TA Operating Free-Air Temperature Test Conditions Min. Max. Unit 2.3 3.6 V VCC = 2.3V to 2.7V 1.7 — V VCC = 2.7V to 3.6V 2 — VCC = 2.3V to 2.7V — 0.7 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 — 0.8 –40 +85 V °C IDT74CBTLVR3862 LOW-VOLTAGE 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = –40°C to +85°C Symbol Typ.(1) Max. — — –1.2 V — — ±1 µA — — 5 µA VCC = 0V, VI or VO = 0V or 3.6V — — 10 µA VCC = 3.6V, IO = 0, VI = VCC or GND — — 10 µA Parameter Test Conditions Control Inputs, Data I/O VCC = 3V, II = –18mA Control Inputs VCC = 3.6V, VI = VCC or GND Data I/O VCC = 3.6V, VO = 0V or 3.6V switch disabled IOFF ICC VIK II I OZ Min. Unit ∆ICC(2) 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, OE = VCC, OE = VCC — 8 — pF VI = 0 IO = 64mA — 30 47 IO = 24mA — 30 47 VI = 1.7V IO = 15mA — 36 80 VI = 0 IO = 64mA — 30 42 IO = 24mA — 30 42 IO = 15mA — 32 47 CIO(OFF) VCC = 2.3V Typ. at VCC = 2.5V RON(3) VCC = 3V VI = 2.4V Ω NOTES: 1. Typical values are at 3.3V, +25°C ambient. 2. The increase in supply current is attributable to each input that is at the specified voltage level rather than VCC or GND. 3. 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 — 0.9 — 1.5 ns 1 6 1 5.3 ns 1 5.5 1 5.5 ns 1 6 1 5.3 ns 1 5.5 1 6 ns A to B or B to A tEN Output Enable Time OE to A or B tDIS Output DisableTime OE to A or B tEN Output Enable Time OE to A or B tDIS Output DisableTime 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 when driven by an ideal voltage source (zero output impededance). 3 IDT74CBTLVR3862 LOW-VOLTAGE 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS (1) (2) Symbol VCC = 3.3V±0.3V VCC = 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 SAME PHASE INPUT TRANSITION tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V VOH VT VOL VIH VT 0V OPPOSITE PHASE INPUT TRANSITION Propagation Delay VLOAD VCC 500Ω Pulse(1, 2) Generator VIN CONTROL INPUT GND tPZL VOUT D.U.T. RT DISABLE ENABLE Open OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL Test Circuits for All Outputs SWITCH POSITION Switch VLOAD tPHZ/tPZH GND tPD Open tPHZ VT 0V Enable and Disable Times 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 ≤ 2ns. Test VLOAD/2 VT VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. tPLZ/tPZL tPLZ VIH VT 0V 4 IDT74CBTLVR3862 LOW-VOLTAGE 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION CBTLV X IDT XX Temp. Range Family XXX Device Type XX Package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 PY Q PG Shrink Small Outline Package Quarter-size Small Outline Package Thin Shrink Small Outline Package 3862 Low-Voltage 10-Bit Bus Switch R 25Ω series dampening resistors on A and B ports 74 –40°C to +85°C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 5 for Tech Support: [email protected] (408) 654-6459