IDT74CBTLV16211 LOW-VOLTAGE 24-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE 24-BIT BUS SWITCH FEATURES: IDT74CBTLV16211 DESCRIPTION: 5Ω Ω A/B bi-directional switch 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, TSSOP, and TVSOP packages • • • • • • The CBTLV16211 operates as a single 24-bit bus switch or as a dual 12-bit bus switch, which provides high speed switching. This device has very low ON resistance, resulting in under 250ps propagation delay throughout the switch. When Output Enable (OE) is low, the corresponding 12-bit bus switch is on and port A is connected to Port B. When OE is high, the switch is off and a high impedance exists between Port A and Port B. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor. APPLICATIONS: • 3.3V High Speed Bus Switching and Bus Isolation FUNCTIONAL BLOCK DIAGRAM 2 SW 1A1 1A12 14 SW SIMPLIFIED SCHEMATIC, EACH SWITCH 54 42 1B1 1B12 A B 56 1OE 2A1 15 SW 41 2B1 OE 2A12 28 SW 29 2B12 55 2OE 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-5888/4 IDT74CBTLV16211 LOW-VOLTAGE 24-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS(1) Symbol NC 1 56 1OE VCC 1A1 2 55 2OE VI 1A2 3 54 1B1 1A3 4 53 1B2 1A4 5 52 1B3 1A5 6 51 1B4 1B5 1A6 7 50 GND 8 49 GND 1A7 9 48 1B6 1A8 10 47 1B7 1A9 11 46 1B8 1A10 12 45 1B9 1A11 13 44 1B10 1A12 14 43 1B11 1B12 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. 2A1 15 42 2A2 16 41 2B1 VCC 17 40 2B2 Pin Names 2A3 18 39 2B3 xOE Output Enable (Active LOW) GND 19 38 GND xAx Port A Inputs or Outputs 2A4 20 37 2B4 xBx Port B Inputs or Outputs 2A5 21 36 2B5 2A6 22 35 2B6 2A7 23 34 2B7 2A8 24 33 2B8 2A9 25 32 2B9 2A10 26 31 2B10 2A11 27 30 2B11 2A12 28 29 2B12 PIN DESCRIPTION Description FUNCTION TABLE(EACH 12-BIT BUS SWITCH)(1) Input OE Operation L A-Port = B-Port H Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level SSOP/ TSSOP/ TVSOP TOP VIEW 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 IDT74CBTLV16211 LOW-VOLTAGE 24-BIT BUS SWITCH 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 — 6.5 — pF IO = 64mA — 5 8 IO = 24mA — 5 8 VI = 1.7V IO = 15mA — 27 40 VI = 0 IO = 64mA — 5 7 IO = 24mA — 5 7 IO = 15mA — 10 15 CIO(OFF) Max. at VCC = 2.3V VI = 0 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. 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 7 1 6.2 ns 1 7.2 1 7.7 ns A to B or B to A tEN Output Enable Time OE to A or B tDIS Output Disable time 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 IDT74CBTLV16211 LOW-VOLTAGE 24-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS 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 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 IDT74CBTLV16211 LOW-VOLTAGE 24-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION XXX XX CBTLV IDT XX Device Type Package Temp. Range CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 PV PA PF Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package 16211 Low-Voltage 24-Bit Bus Switch 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