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| TC7MBD3245AFK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MBD3245AFK Octal Bus Switch The TC7MBD3245AFK provides eight bits of high-speed TTL-compatible bus switching in a standard '245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When output enable (OE) is low, the 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 device is enable to realize the shift of signal level from 5 V to 3.3 V. All inputs are equipped with protection circuits against static discharge. Weight: 0.03 g (typ.) Features * * * * * * * * * Operating voltage: VCC = 4.5~5.5 V High speed: tpd = 0.32 ns (max) Low on resistance: RON = 5 (typ.) ESD performance: Human body model > 2000 V Machine model > 200 V Compatible with TTL outputs (control inputs) Low Power Dissipation: Icc = 10 mA (max.) Package: VSSOP (US20) Pin compatible with the 74xx245 type. Functionally equivalent to (FST/CBT) 3245. Pin Assignment (top view) NC A1 A2 A3 A4 A5 A6 A7 A8 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 GND 10 (top view) NC-No Internal Connection 1 2002-10-0 TC7MBD3245AFK Truth Table Inputs OE Function A port = B port Disconnect L H System Diagram A1 B1 A8 B8 OE Maximum Ratings Characteristics Power supply range DC input voltage DC switch voltage Input diode current Continuous channel circuit Power dissipation DC VCC/ground 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 -50 128 180 100 -65~150 Unit V V V mA mA mW mA C Recommended Operating Conditions Characteristics Supply voltage Input voltage Switch voltage Operating temperature Input rise and 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 2 2002-10-0 TC7MBD3245AFK Electrical Characteristics DC Characteristics (Ta = -40~85C) Characteristics "H" level Input voltage "L" level High-level output voltage (Note 2) Input leakage current Power off leakage current VOH Symbol VIH VIL IOH=-1mA VIS = VCC VIN = 0~5.5 V A, B, OE = 0~5.5 V 5.0 5.25 4.5~5.5 2.5 2.7 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3.0 3.2 3/4 3/4 3/4 3.4 3.6 1.0 1.0 1.0 mA mA mA V Test Condition 3/4 3/4 VCC (V) 4.5~5.5 4.5~5.5 4.75 Min 2.0 3/4 2.3 Typ. (Note 1) 3/4 3/4 2.8 Max 3/4 0.8 3.2 Unit V IIN IOFF 0 4.5~5.5 4.5 4.75 4.5 4.75 4.5 4.75 5.5 5.5 Off-STATE leakage current (switch off) ISZ A, B = 0~5.5 V, OE = VCC IIS = 64 mA 5 5 5 5 35 35 3/4 3/4 9 8 9 8 65 50 10 2.5 mA W ON resistance (Note 3) RON VIS = 0 V IIS = 30 mA VIS = 2.3 V, IIS = 15 mA Quiescent supply current Increase in ICC per input ICC DICC VIN = VCC or GND,IOUT = 0 VIN = 3.4 V (one input) mA Note 1: Typical values are at VCC = 5 V, Ta = 25C. Note 2: It recommends that this device uses Pull-up resistance when adding and using resistance for an output terminal. Since it couses to drop a VOH voltage level when using Pull-down resistance for an output terminal. Note 3: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins. 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 Figure 1, Figure 2 (Note 4) VCC (V) 4.5 Min 3/4 Max 0.32 Unit ns 3/4 7.0 ns 3/4 7.0 ns Note 4: 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 (Note 5) (Note 5) VCC (V) 5.0 5.0 Typ. 3 10 Unit pF pF Note 5: This parameter is guaranteed by design. 3 2002-10-0 TC7MBD3245AFK AC Test Circuit Open 7.0 V GND Measure CL = 50 pF RL = 500 W CL RL Switch RL Paramenter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH Switch Open 7.0 V Open Output Figure 1 AC Waveform tr 2.5 ns Input (A, B) tf 2.5 ns 90% 1.5 V 10% 3.0 V GND Output (B, A) tpLH VOH 1.5 V tpHL VOL Figure 2 tpLH, tpHL tr 2.5 ns Output Enable ( OE ) tpLZ Output (A, B) Low to Off to Low tpHZ Output (A, B) High to Off to High Outputs enabled tf 2.5 ns 90% 1.5 V 10% 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 3.0 V GND Figure 3 tpLZ, tpHZ, tpZL, tpZH 4 2002-10-0 TC7MBD3245AFK VOH - VCC Characteristics (typ.) 4.5 Ta = 25C 4.0 (mA) (V) Ta = 25C 0 High-level output voltage VOH 3.5 High-level output current IOH 1mA 100 mA 6 mA 12 mA 24 mA -0.2 3.0 -0.4 2.5 -0.6 VCC=4.5V VCC=4.75V VCC=5.0V VCC=5.25V VCC=5.5V 2.5 3.0 3.5 4.0 5.0 2.0 -0.8 1.5 4.50 4.75 5.00 5.25 5.50 5.75 -1.0 2.0 Power supply voltage VCC (V) High-level output voltage VOH (V) 4.5 (V) Ta = 85C 4.0 (mA) Ta = 85C 0 High-level output voltage VOH High-level output current IOH 3.5 1mA 100 mA 6 mA 12 mA 24 mA -0.2 3.0 -0.4 2.5 -0.6 VCC=4.5V VCC=4.75V VCC=5.0V VCC=5.25V VCC=5.5V 2.5 3.0 3.5 4.0 5.0 2.0 -0.8 1.5 4.50 4.75 5.00 5.25 5.50 5.75 -1.0 2.0 Power supply voltage VCC (V) High-level output voltage VOH (V) 4.5 (V) Ta = -40C 4.0 (mA) Ta = -40C 0 High-level output voltage VOH 3.5 1mA 100 mA 6 mA 12 mA 24 mA High-level output current IOH -0.2 3.0 -0.4 2.5 -0.6 VCC=4.5V VCC=4.75V VCC=5.0V VCC=5.25V VCC=5.5V 2.5 3.0 3.5 4.0 5.0 2.0 -0.8 1.5 4.50 4.75 5.00 5.25 5.50 5.75 -1.0 2.0 Power supply voltage VCC (V) High-level output voltage VOH (V) Figure 4 5 2002-10-0 TC7MBD3245AFK Package Dimensions Weight: 0.03 g (typ.) 6 2002-10-0 TC7MBD3245AFK RESTRICTIONS ON PRODUCT USE 000707EBA * TOSHIBA is continually working to improve the quality and 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 comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products 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 TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * 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. 7 2002-10-0 |
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