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| TC7WB125FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7WB125FK Dual Bus Switch The TC7WB125FK is a low on-resistance, high-speed CMOS dual-bit bus switch. This bus switch allows the connections or disconnections to be made with minimal propagation delay while maintaining Low power dissipation which is the feature of CMOS. When output enable ( OE ) is at low level, the switch is on; when at high level, the switch is off. All inputs are equipped with protector circuits to protect the device from static discharge. Features * * * * * * Operating voltage: VCC = 4.5~5.5 V High speed operation: tpd = 0.25 ns (max) Ultra-low on resistance: RON = 5 (typ.) Electro-static discharge (ESD) performance: 200 V or more (EIAJ) 2000 V or more (MIL) TTL level input (control input) Package: US8 Weight: 0.01 g (typ.) Pin Assignment (top view) VCC OE2 8 7 B1 6 A2 5 WB 125 1 2 OE1 A1 3 4 B2 GND 980910EBA1 * TOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 2000-03-23 1/5 TC7WB125FK Truth Table Inputs OE Function A port = B port Disconnect L H System Diagram A1 B1 A2 B2 OE1 OE2 Maximum Ratings Characteristics Power supply voltage Control pin input voltage Switch terminal I/O voltage Clump diode current Switch I/O current Power dissipation DC VCC/GND current Storage temperature Symbol VCC VIN VS IIK IS PD ICC/IGND Tstg Rating -0.5~7.0 -0.5~7.0 -0.5~7.0 -50 128 200 100 -65~150 Unit V V V mA mA mW mA C Recommended Operating Conditions Characteristics Power supply voltage Control pin input voltage Switch I/O voltage Operating temperature Control pin input rise/fall time Symbol VCC VIN VS Topr dt/dv Rating 4.5~5.5 0~5.5 0~5.5 -40~85 0~10 Unit V V V C ns/V 2000-03-23 2/5 TC7WB125FK Electrical Characteristics DC Characteristics (Ta = -40~85C) Characteristics Control pin input "H" level voltage "L" level Input leakage current Off-state leakage current (switch off) Symbol VIH VIL IIN ISZ VIN = 0~5.5 V A, B = 0~5.5 V, OE = VCC IIS = 64 mA IIS = 30 mA Test Condition VCC (V) 4.5~5.5 4.5~5.5 5.5 5.5 4.5 4.5 4.5 5.5 5.5 2.0 Min Typ. (Note1) 5 5 10 Max 0.8 1.0 1.0 7 7 15 10 2.5 mA mA A A Unit V ON resistance (Note2) RON VIS = 0 V VIS = 2.4 V, IIS = 15 mA Quiescent supply current ICC ICC VIN = VCC or GND IOUT = 0 VIN = 3.4 V (one input) Note1: The typical values are at VCC = 5 V, Ta = 25C. Note2: Apply the specified current to the switch, then measure the voltages on pins A and B. The on-resistance is the lower of the two. AC Characteristics (Ta = -40~85C) Characteristics Propagation delay time (bus to bus) Output enable time Symbol tpLH tpHL tpZL tpZH Output disable time tpLZ tpHZ Figure 1, Figure 3 4.5 Figure 1, Figure 3 4.5 Test Condition VCC (V) Figure 1, Figure 2 (Note3) 4.5 0.25 ns Min Max Unit 4.0 ns 5.0 ns Note3: The propagation delay time is calculated by the RC (on-resistance and load capacitance) time constant. Capacitive Characteristics (Ta = 25C) Characteristics Control pin input capacitance Switch terminal capacitance Symbol CIN CI/O OE = VCC Test Condition VCC (V) (Note4) (Note4) 5.0 5.0 Typ. 3 10 Unit pF pF Note4: This item is guaranteed by design. 2000-03-23 3/5 TC7WB125FK AC Test Circuit Open 7.0 V GND Measure CL = 50 pF RL = 500 CL RL Switch RL Parameter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH Switch Open 7.0 V Open Output Figure 1 AC Waveform tr Input (A, B) 2.5 ns tf 90% 1.5 V 10% 2.5 ns 3.0 V GND Output (B, A) tpLH VOH 1.5 V tpHL VOL Figure 2 tpLH, tpHL tr Output Enable ( OE ) 2.5 ns tf 90% 1.5 V 2.5 ns 3.0 V 10% GND tpLZ Output (A, B) Low to Off to Low tpHZ Output (A, B) High to Off to High Outputs enabled tpZL 3.5 V 1.5 V VOL + 0.3 V VOH - 0.3 V 1.5 V GND Outputs disabled Outputs enabled tpZH VOL VOH Figure 3 tpLZ, tpHZ, tpZL, tpZH 2000-03-23 4/5 TC7WB125FK Package Dimensions Weight: 0.01 g (typ.) 2000-03-23 5/5 |
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